1 | !> @file plant_canopy_model_mod.f90 |
---|
2 | !------------------------------------------------------------------------------! |
---|
3 | ! This file is part of the PALM model system. |
---|
4 | ! |
---|
5 | ! PALM is free software: you can redistribute it and/or modify it under the |
---|
6 | ! terms of the GNU General Public License as published by the Free Software |
---|
7 | ! Foundation, either version 3 of the License, or (at your option) any later |
---|
8 | ! version. |
---|
9 | ! |
---|
10 | ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY |
---|
11 | ! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR |
---|
12 | ! A PARTICULAR PURPOSE. See the GNU General Public License for more details. |
---|
13 | ! |
---|
14 | ! You should have received a copy of the GNU General Public License along with |
---|
15 | ! PALM. If not, see <http://www.gnu.org/licenses/>. |
---|
16 | ! |
---|
17 | ! Copyright 1997-2019 Leibniz Universitaet Hannover |
---|
18 | ! Copyright 2018 Institute of Computer Science of the |
---|
19 | ! Czech Academy of Sciences, Prague |
---|
20 | !------------------------------------------------------------------------------! |
---|
21 | ! |
---|
22 | ! Current revisions: |
---|
23 | ! ------------------ |
---|
24 | ! |
---|
25 | ! |
---|
26 | ! Former revisions: |
---|
27 | ! ----------------- |
---|
28 | ! $Id: plant_canopy_model_mod.f90 3745 2019-02-15 18:57:56Z moh.hefny $ |
---|
29 | ! Bugfix in transpiration, floating invalid when temperature |
---|
30 | ! becomes > 40 degrees |
---|
31 | ! |
---|
32 | ! 3744 2019-02-15 18:38:58Z suehring |
---|
33 | ! Some interface calls moved to module_interface + cleanup |
---|
34 | ! |
---|
35 | ! 3655 2019-01-07 16:51:22Z knoop |
---|
36 | ! unused variables removed |
---|
37 | ! |
---|
38 | ! 3589 2018-11-30 15:09:51Z suehring |
---|
39 | ! Formatting adjustments |
---|
40 | ! |
---|
41 | ! 3582 2018-11-29 19:16:36Z suehring |
---|
42 | ! working precision added to make code Fortran 2008 conform |
---|
43 | ! |
---|
44 | ! 3498 2018-11-07 10:53:03Z gronemeier |
---|
45 | ! corrected revisions section |
---|
46 | ! |
---|
47 | ! 3497 2018-11-06 17:15:18Z suehring |
---|
48 | ! Remove write statement. |
---|
49 | ! |
---|
50 | ! 3467 2018-10-30 19:05:21Z suehring |
---|
51 | ! Add calculation of transpiration for resolved plant canopy (trees, shrubs) |
---|
52 | ! (V. Fuka, MFF UK Prague, J.Resler, ICS AS, Prague) |
---|
53 | ! |
---|
54 | ! Fix reading plant canopy over buildings |
---|
55 | ! |
---|
56 | ! 3337 2018-10-12 15:17:09Z kanani |
---|
57 | ! Fix reading plant canopy over buildings |
---|
58 | ! |
---|
59 | ! 3294 2018-10-01 02:37:10Z raasch |
---|
60 | ! ocean renamed ocean_mode |
---|
61 | ! |
---|
62 | ! 3274 2018-09-24 15:42:55Z knoop |
---|
63 | ! Modularization of all bulk cloud physics code components |
---|
64 | ! |
---|
65 | ! 3248 2018-09-14 09:42:06Z sward |
---|
66 | ! Minor formating changes |
---|
67 | ! |
---|
68 | ! 3246 2018-09-13 15:14:50Z sward |
---|
69 | ! Added error handling for input namelist via parin_fail_message |
---|
70 | ! |
---|
71 | ! 3241 2018-09-12 15:02:00Z raasch |
---|
72 | ! unused variables removed |
---|
73 | ! |
---|
74 | ! 3065 2018-06-12 07:03:02Z Giersch |
---|
75 | ! dz was replaced by the help of zw to allow for vertical stretching |
---|
76 | ! |
---|
77 | ! 3049 2018-05-29 13:52:36Z Giersch |
---|
78 | ! Error messages revised |
---|
79 | ! |
---|
80 | ! 3045 2018-05-28 07:55:41Z Giersch |
---|
81 | ! Error message revised |
---|
82 | ! |
---|
83 | ! 3022 2018-05-18 11:12:35Z suehring |
---|
84 | ! Bugfix in allocation of transpiration rate |
---|
85 | ! |
---|
86 | ! 3014 2018-05-09 08:42:38Z maronga |
---|
87 | ! Bugfix: nzb_do and nzt_do were not used for 3d data output |
---|
88 | ! Added pc_transpiration_rate |
---|
89 | ! |
---|
90 | ! 2977 2018-04-17 10:27:57Z kanani |
---|
91 | ! Implement changes from branch radiation (r2948-2971) with minor modifications, |
---|
92 | ! plus some formatting. |
---|
93 | ! (moh.hefny): |
---|
94 | ! Add plant canopy type to account for changes in LAD (based on the changes |
---|
95 | ! done by Resler & Pavel) and correct the error message to PALM Standard. |
---|
96 | ! |
---|
97 | ! 2932 2018-03-26 09:39:22Z maronga |
---|
98 | ! renamed canopy_par to plant_canopy_parameters |
---|
99 | ! |
---|
100 | ! 2920 2018-03-22 11:22:01Z kanani |
---|
101 | ! Move usm_lad_rma and prototype_lad to radiation_model (moh.hefny) |
---|
102 | ! |
---|
103 | ! 2892 2018-03-14 15:06:29Z suehring |
---|
104 | ! Bugfix, read separate ASCII LAD files for parent and child model. |
---|
105 | ! |
---|
106 | ! 2770 2018-01-25 15:10:09Z kanani |
---|
107 | ! Correction of parameter check |
---|
108 | ! |
---|
109 | ! 2768 2018-01-24 15:38:29Z kanani |
---|
110 | ! Added check for output quantity pcm_heatrate, some formatting |
---|
111 | ! |
---|
112 | ! 2766 2018-01-22 17:17:47Z kanani |
---|
113 | ! Increased LEN of canopy mode to 30 |
---|
114 | ! |
---|
115 | ! 2746 2018-01-15 12:06:04Z suehring |
---|
116 | ! Move flag plant canopy to modules |
---|
117 | ! |
---|
118 | ! 2718 2018-01-02 08:49:38Z maronga |
---|
119 | ! Corrected "Former revisions" section |
---|
120 | ! |
---|
121 | ! 2701 2017-12-15 15:40:50Z suehring |
---|
122 | ! Changes from last commit documented |
---|
123 | ! |
---|
124 | ! 2698 2017-12-14 18:46:24Z suehring |
---|
125 | ! Bugfix in get_topography_top_index |
---|
126 | ! |
---|
127 | ! 2696 2017-12-14 17:12:51Z kanani |
---|
128 | ! Change in file header (GPL part) |
---|
129 | ! Bugfix for vertical loop index pch_index in case of Netcdf input |
---|
130 | ! Introduce 2D index array incorporate canopy top index |
---|
131 | ! Check if canopy on top of topography do not exceed vertical dimension |
---|
132 | ! Add check for canopy_mode in case of Netcdf input. |
---|
133 | ! Enable _FillValue output for 3d quantities |
---|
134 | ! Bugfix in reading of PIDS leaf area density (MS) |
---|
135 | ! |
---|
136 | ! 2669 2017-12-06 16:03:27Z raasch |
---|
137 | ! coupling_char removed |
---|
138 | ! |
---|
139 | ! 2512 2017-10-04 08:26:59Z raasch |
---|
140 | ! upper bounds of 3d output changed from nx+1,ny+1 to nx,ny |
---|
141 | ! no output of ghost layer data |
---|
142 | ! |
---|
143 | ! 2318 2017-07-20 17:27:44Z suehring |
---|
144 | ! Get topography top index via Function call |
---|
145 | ! |
---|
146 | ! 2317 2017-07-20 17:27:19Z suehring |
---|
147 | ! Changed error messages |
---|
148 | ! |
---|
149 | ! 2233 2017-05-30 18:08:54Z suehring |
---|
150 | ! |
---|
151 | ! 2232 2017-05-30 17:47:52Z suehring |
---|
152 | ! Adjustments to new topography concept |
---|
153 | ! |
---|
154 | ! 2213 2017-04-24 15:10:35Z kanani |
---|
155 | ! Bugfix: exchange of ghost points in array pc_heating_rate needed for output |
---|
156 | ! of pcm_heatrate, onetime ghost point exchange of lad_s after initialization. |
---|
157 | ! Formatting and clean-up of subroutine pcm_read_plant_canopy_3d, |
---|
158 | ! minor re-organization of canopy-heating initialization. |
---|
159 | ! |
---|
160 | ! 2209 2017-04-19 09:34:46Z kanani |
---|
161 | ! Added 3d output of leaf area density (pcm_lad) and canopy |
---|
162 | ! heat rate (pcm_heatrate) |
---|
163 | ! |
---|
164 | ! 2024 2016-10-12 16:42:37Z kanani |
---|
165 | ! Added missing lad_s initialization |
---|
166 | ! |
---|
167 | ! 2011 2016-09-19 17:29:57Z kanani |
---|
168 | ! Renamed canopy_heat_flux to pc_heating_rate, since the original meaning/ |
---|
169 | ! calculation of the quantity has changed, related to the urban surface model |
---|
170 | ! and similar future applications. |
---|
171 | ! |
---|
172 | ! 2007 2016-08-24 15:47:17Z kanani |
---|
173 | ! Added SUBROUTINE pcm_read_plant_canopy_3d for reading 3d plant canopy data |
---|
174 | ! from file (new case canopy_mode=read_from_file_3d) in the course of |
---|
175 | ! introduction of urban surface model, |
---|
176 | ! introduced variable ext_coef, |
---|
177 | ! resorted SUBROUTINEs to alphabetical order |
---|
178 | ! |
---|
179 | ! 2000 2016-08-20 18:09:15Z knoop |
---|
180 | ! Forced header and separation lines into 80 columns |
---|
181 | ! |
---|
182 | ! 1960 2016-07-12 16:34:24Z suehring |
---|
183 | ! Separate humidity and passive scalar |
---|
184 | ! |
---|
185 | ! 1953 2016-06-21 09:28:42Z suehring |
---|
186 | ! Bugfix, lad_s and lad must be public |
---|
187 | ! |
---|
188 | ! 1826 2016-04-07 12:01:39Z maronga |
---|
189 | ! Further modularization |
---|
190 | ! |
---|
191 | ! 1721 2015-11-16 12:56:48Z raasch |
---|
192 | ! bugfixes: shf is reduced in areas covered with canopy only, |
---|
193 | ! canopy is set on top of topography |
---|
194 | ! |
---|
195 | ! 1682 2015-10-07 23:56:08Z knoop |
---|
196 | ! Code annotations made doxygen readable |
---|
197 | ! |
---|
198 | ! 1484 2014-10-21 10:53:05Z kanani |
---|
199 | ! Changes due to new module structure of the plant canopy model: |
---|
200 | ! module plant_canopy_model_mod now contains a subroutine for the |
---|
201 | ! initialization of the canopy model (pcm_init), |
---|
202 | ! limitation of the canopy drag (previously accounted for by calculation of |
---|
203 | ! a limiting canopy timestep for the determination of the maximum LES timestep |
---|
204 | ! in subroutine timestep) is now realized by the calculation of pre-tendencies |
---|
205 | ! and preliminary velocities in subroutine pcm_tendency, |
---|
206 | ! some redundant MPI communication removed in subroutine pcm_init |
---|
207 | ! (was previously in init_3d_model), |
---|
208 | ! unnecessary 3d-arrays lad_u, lad_v, lad_w removed - lad information on the |
---|
209 | ! respective grid is now provided only by lad_s (e.g. in the calculation of |
---|
210 | ! the tendency terms or of cum_lai_hf), |
---|
211 | ! drag_coefficient, lai, leaf_surface_concentration, |
---|
212 | ! scalar_exchange_coefficient, sec and sls renamed to canopy_drag_coeff, |
---|
213 | ! cum_lai_hf, leaf_surface_conc, leaf_scalar_exch_coeff, lsec and lsc, |
---|
214 | ! respectively, |
---|
215 | ! unnecessary 3d-arrays cdc, lsc and lsec now defined as single-value constants, |
---|
216 | ! USE-statements and ONLY-lists modified accordingly |
---|
217 | ! |
---|
218 | ! 1340 2014-03-25 19:45:13Z kanani |
---|
219 | ! REAL constants defined as wp-kind |
---|
220 | ! |
---|
221 | ! 1320 2014-03-20 08:40:49Z raasch |
---|
222 | ! ONLY-attribute added to USE-statements, |
---|
223 | ! kind-parameters added to all INTEGER and REAL declaration statements, |
---|
224 | ! kinds are defined in new module kinds, |
---|
225 | ! old module precision_kind is removed, |
---|
226 | ! revision history before 2012 removed, |
---|
227 | ! comment fields (!:) to be used for variable explanations added to |
---|
228 | ! all variable declaration statements |
---|
229 | ! |
---|
230 | ! 1036 2012-10-22 13:43:42Z raasch |
---|
231 | ! code put under GPL (PALM 3.9) |
---|
232 | ! |
---|
233 | ! 138 2007-11-28 10:03:58Z letzel |
---|
234 | ! Initial revision |
---|
235 | ! |
---|
236 | ! Description: |
---|
237 | ! ------------ |
---|
238 | !> 1) Initialization of the canopy model, e.g. construction of leaf area density |
---|
239 | !> profile (subroutine pcm_init). |
---|
240 | !> 2) Calculation of sinks and sources of momentum, heat and scalar concentration |
---|
241 | !> due to canopy elements (subroutine pcm_tendency). |
---|
242 | ! |
---|
243 | ! @todo - precalculate constant terms in pcm_calc_transpiration_rate |
---|
244 | !------------------------------------------------------------------------------! |
---|
245 | MODULE plant_canopy_model_mod |
---|
246 | |
---|
247 | USE arrays_3d, & |
---|
248 | ONLY: dzu, dzw, e, exner, hyp, pt, q, s, tend, u, v, w, zu, zw |
---|
249 | |
---|
250 | USE basic_constants_and_equations_mod, & |
---|
251 | ONLY: c_p, degc_to_k, l_v, lv_d_cp, r_d, rd_d_rv |
---|
252 | |
---|
253 | USE control_parameters, & |
---|
254 | ONLY: humidity |
---|
255 | |
---|
256 | USE indices, & |
---|
257 | ONLY: nbgp, nxl, nxlg, nxlu, nxr, nxrg, nyn, nyng, nys, nysg, nysv, & |
---|
258 | nz, nzb, nzt |
---|
259 | |
---|
260 | USE kinds |
---|
261 | |
---|
262 | USE pegrid |
---|
263 | |
---|
264 | USE surface_mod, & |
---|
265 | ONLY: get_topography_top_index_ji |
---|
266 | |
---|
267 | |
---|
268 | IMPLICIT NONE |
---|
269 | |
---|
270 | |
---|
271 | CHARACTER (LEN=30) :: canopy_mode = 'block' !< canopy coverage |
---|
272 | LOGICAL :: plant_canopy_transpiration = .FALSE. !< flag to switch calculation of transpiration and corresponding latent heat |
---|
273 | !< for resolved plant canopy inside radiation model |
---|
274 | !< (calls subroutine pcm_calc_transpiration_rate from module plant_canopy_mod) |
---|
275 | |
---|
276 | INTEGER(iwp) :: pch_index = 0 !< plant canopy height/top index |
---|
277 | INTEGER(iwp) :: lad_vertical_gradient_level_ind(10) = -9999 !< lad-profile levels (index) |
---|
278 | |
---|
279 | INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: pch_index_ji !< local plant canopy top |
---|
280 | |
---|
281 | LOGICAL :: calc_beta_lad_profile = .FALSE. !< switch for calc. of lad from beta func. |
---|
282 | |
---|
283 | REAL(wp) :: alpha_lad = 9999999.9_wp !< coefficient for lad calculation |
---|
284 | REAL(wp) :: beta_lad = 9999999.9_wp !< coefficient for lad calculation |
---|
285 | REAL(wp) :: canopy_drag_coeff = 0.0_wp !< canopy drag coefficient (parameter) |
---|
286 | REAL(wp) :: cdc = 0.0_wp !< canopy drag coeff. (abbreviation used in equations) |
---|
287 | REAL(wp) :: cthf = 0.0_wp !< canopy top heat flux |
---|
288 | REAL(wp) :: dt_plant_canopy = 0.0_wp !< timestep account. for canopy drag |
---|
289 | REAL(wp) :: ext_coef = 0.6_wp !< extinction coefficient |
---|
290 | REAL(wp) :: lad_surface = 0.0_wp !< lad surface value |
---|
291 | REAL(wp) :: lai_beta = 0.0_wp !< leaf area index (lai) for lad calc. |
---|
292 | REAL(wp) :: leaf_scalar_exch_coeff = 0.0_wp !< canopy scalar exchange coeff. |
---|
293 | REAL(wp) :: leaf_surface_conc = 0.0_wp !< leaf surface concentration |
---|
294 | REAL(wp) :: lsc = 0.0_wp !< leaf surface concentration |
---|
295 | REAL(wp) :: lsec = 0.0_wp !< leaf scalar exchange coeff. |
---|
296 | |
---|
297 | REAL(wp) :: lad_vertical_gradient(10) = 0.0_wp !< lad gradient |
---|
298 | REAL(wp) :: lad_vertical_gradient_level(10) = -9999999.9_wp !< lad-prof. levels (in m) |
---|
299 | |
---|
300 | REAL(wp) :: lad_type_coef(0:10) = 1.0_wp !< multiplicative coeficients for particular types |
---|
301 | !< of plant canopy (e.g. deciduous tree during winter) |
---|
302 | |
---|
303 | REAL(wp), DIMENSION(:), ALLOCATABLE :: lad !< leaf area density |
---|
304 | REAL(wp), DIMENSION(:), ALLOCATABLE :: pre_lad !< preliminary lad |
---|
305 | |
---|
306 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: cum_lai_hf !< cumulative lai for heatflux calc. |
---|
307 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: lad_s !< lad on scalar-grid |
---|
308 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: pc_heating_rate !< plant canopy heating rate |
---|
309 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: pc_transpiration_rate !< plant canopy transpiration rate |
---|
310 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: pc_latent_rate !< plant canopy latent heating rate |
---|
311 | |
---|
312 | SAVE |
---|
313 | |
---|
314 | |
---|
315 | PRIVATE |
---|
316 | |
---|
317 | ! |
---|
318 | !-- Public functions |
---|
319 | PUBLIC pcm_calc_transpiration_rate, pcm_check_data_output, & |
---|
320 | pcm_check_parameters, pcm_data_output_3d, pcm_define_netcdf_grid, & |
---|
321 | pcm_header, pcm_init, pcm_parin, pcm_tendency |
---|
322 | |
---|
323 | ! |
---|
324 | !-- Public variables and constants |
---|
325 | PUBLIC cdc, pc_heating_rate, pc_transpiration_rate, pc_latent_rate, & |
---|
326 | canopy_mode, cthf, dt_plant_canopy, lad, lad_s, pch_index, & |
---|
327 | plant_canopy_transpiration |
---|
328 | |
---|
329 | INTERFACE pcm_calc_transpiration_rate |
---|
330 | MODULE PROCEDURE pcm_calc_transpiration_rate |
---|
331 | END INTERFACE pcm_calc_transpiration_rate |
---|
332 | |
---|
333 | INTERFACE pcm_check_data_output |
---|
334 | MODULE PROCEDURE pcm_check_data_output |
---|
335 | END INTERFACE pcm_check_data_output |
---|
336 | |
---|
337 | INTERFACE pcm_check_parameters |
---|
338 | MODULE PROCEDURE pcm_check_parameters |
---|
339 | END INTERFACE pcm_check_parameters |
---|
340 | |
---|
341 | INTERFACE pcm_data_output_3d |
---|
342 | MODULE PROCEDURE pcm_data_output_3d |
---|
343 | END INTERFACE pcm_data_output_3d |
---|
344 | |
---|
345 | INTERFACE pcm_define_netcdf_grid |
---|
346 | MODULE PROCEDURE pcm_define_netcdf_grid |
---|
347 | END INTERFACE pcm_define_netcdf_grid |
---|
348 | |
---|
349 | INTERFACE pcm_header |
---|
350 | MODULE PROCEDURE pcm_header |
---|
351 | END INTERFACE pcm_header |
---|
352 | |
---|
353 | INTERFACE pcm_init |
---|
354 | MODULE PROCEDURE pcm_init |
---|
355 | END INTERFACE pcm_init |
---|
356 | |
---|
357 | INTERFACE pcm_parin |
---|
358 | MODULE PROCEDURE pcm_parin |
---|
359 | END INTERFACE pcm_parin |
---|
360 | |
---|
361 | INTERFACE pcm_read_plant_canopy_3d |
---|
362 | MODULE PROCEDURE pcm_read_plant_canopy_3d |
---|
363 | END INTERFACE pcm_read_plant_canopy_3d |
---|
364 | |
---|
365 | INTERFACE pcm_tendency |
---|
366 | MODULE PROCEDURE pcm_tendency |
---|
367 | MODULE PROCEDURE pcm_tendency_ij |
---|
368 | END INTERFACE pcm_tendency |
---|
369 | |
---|
370 | |
---|
371 | CONTAINS |
---|
372 | |
---|
373 | |
---|
374 | |
---|
375 | !------------------------------------------------------------------------------! |
---|
376 | ! Description: |
---|
377 | ! ------------ |
---|
378 | !> Calculation of the plant canopy transpiration rate based on the Jarvis-Stewart |
---|
379 | !> with parametrizations described in Daudet et al. (1999; Agricult. and Forest |
---|
380 | !> Meteorol. 97) and Ngao, Adam and Saudreau (2017; Agricult. and Forest Meteorol |
---|
381 | !> 237-238). Model functions f1-f4 were adapted from Stewart (1998; Agric. |
---|
382 | !> and Forest. Meteorol. 43) instead, because they are valid for broader intervals |
---|
383 | !> of values. Funcion f4 used in form present in van Wijk et al. (1998; |
---|
384 | !> Tree Physiology 20). |
---|
385 | !> |
---|
386 | !> This subroutine is called from subroutine radiation_interaction |
---|
387 | !> after the calculation of radiation in plant canopy boxes. |
---|
388 | !> (arrays pcbinsw and pcbinlw). |
---|
389 | !> |
---|
390 | !------------------------------------------------------------------------------! |
---|
391 | SUBROUTINE pcm_calc_transpiration_rate(i, j, k, kk, pcbsw, pcblw, pcbtr, pcblh) |
---|
392 | |
---|
393 | USE control_parameters, & |
---|
394 | ONLY: dz |
---|
395 | |
---|
396 | USE grid_variables, & |
---|
397 | ONLY: dx, dy |
---|
398 | |
---|
399 | IMPLICIT NONE |
---|
400 | !-- input parameters |
---|
401 | INTEGER(iwp), INTENT(IN) :: i, j, k, kk !< indices of the pc gridbox |
---|
402 | REAL(wp), INTENT(IN) :: pcbsw !< sw radiation in gridbox (W) |
---|
403 | REAL(wp), INTENT(IN) :: pcblw !< lw radiation in gridbox (W) |
---|
404 | REAL(wp), INTENT(OUT) :: pcbtr !< transpiration rate dq/dt (kg/kg/s) |
---|
405 | REAL(wp), INTENT(OUT) :: pcblh !< latent heat from transpiration dT/dt (K/s) |
---|
406 | |
---|
407 | !-- variables and parameters for calculation of transpiration rate |
---|
408 | REAL(wp) :: sat_press, sat_press_d, temp, v_lad |
---|
409 | REAL(wp) :: d_fact, g_b, g_s, wind_speed, evapor_rate |
---|
410 | REAL(wp) :: f1, f2, f3, f4, vpd, rswc, e_eq, e_imp, rad |
---|
411 | REAL(wp), PARAMETER :: gama_psychr = 66 !< psychrometric constant (Pa/K) |
---|
412 | REAL(wp), PARAMETER :: g_s_max = 0.01 !< maximum stomatal conductivity (m/s) |
---|
413 | REAL(wp), PARAMETER :: m_soil = 0.4_wp !< soil water content (needs to adjust or take from LSM) |
---|
414 | REAL(wp), PARAMETER :: m_wilt = 0.01_wp !< wilting point soil water content (needs to adjust or take from LSM) |
---|
415 | REAL(wp), PARAMETER :: m_sat = 0.51_wp !< saturation soil water content (needs to adjust or take from LSM) |
---|
416 | REAL(wp), PARAMETER :: t2_min = 0.0_wp !< minimal temperature for calculation of f2 |
---|
417 | REAL(wp), PARAMETER :: t2_max = 40.0_wp !< maximal temperature for calculation of f2 |
---|
418 | |
---|
419 | |
---|
420 | !-- Temperature (deg C) |
---|
421 | temp = pt(k,j,i) * exner(k) - degc_to_k |
---|
422 | !-- Coefficient for conversion of radiation to grid to radiation to unit leaves surface |
---|
423 | v_lad = 1.0_wp / ( MAX( lad_s(kk,j,i), 1.0e-10_wp ) * dx * dy * dz(1) ) |
---|
424 | !-- Magnus formula for the saturation pressure (see Ngao, Adam and Saudreau (2017) eq. 1) |
---|
425 | !-- There are updated formulas available, kept consistent with the rest of the parametrization |
---|
426 | sat_press = 610.8_wp * exp(17.27_wp * temp/(temp + 237.3_wp)) |
---|
427 | !-- Saturation pressure derivative (derivative of the above) |
---|
428 | sat_press_d = sat_press * 17.27_wp * 237.3_wp / (temp + 237.3_wp)**2 |
---|
429 | !-- Wind speed |
---|
430 | wind_speed = SQRT( ( 0.5_wp * ( u(k,j,i) + u(k,j,i+1) ) )**2 + & |
---|
431 | ( 0.5_wp * ( v(k,j,i) + v(k,j,i+1) ) )**2 + & |
---|
432 | ( 0.5_wp * ( w(k,j,i) + w(k,j,i+1) ) )**2 ) |
---|
433 | !-- Aerodynamic conductivity (Daudet et al. (1999) eq. 14 |
---|
434 | g_b = 0.01_wp * wind_speed + 0.0071_wp |
---|
435 | !-- Radiation flux per leaf surface unit |
---|
436 | rad = pcbsw * v_lad |
---|
437 | !-- First function for calculation of stomatal conductivity (radiation dependency) |
---|
438 | !-- Stewart (1988; Agric. and Forest. Meteorol. 43) eq. 17 |
---|
439 | f1 = rad * (1000._wp+42.1_wp) / 1000._wp / (rad+42.1_wp) |
---|
440 | !-- Second function for calculation of stomatal conductivity (temperature dependency) |
---|
441 | !-- Stewart (1988; Agric. and Forest. Meteorol. 43) eq. 21 |
---|
442 | f2 = MAX(t2_min, (temp-t2_min) * MAX(0.0_wp,t2_max-temp)**((t2_max-16.9_wp)/(16.9_wp-t2_min)) / & |
---|
443 | ((16.9_wp-t2_min) * (t2_max-16.9_wp)**((t2_max-16.9_wp)/(16.9_wp-t2_min))) ) |
---|
444 | !-- Water pressure deficit |
---|
445 | !-- Ngao, Adam and Saudreau (2017) eq. 6 but with water vapour partial pressure |
---|
446 | vpd = max( sat_press - q(k,j,i) * hyp(k) / rd_d_rv, 0._wp ) |
---|
447 | !-- Third function for calculation of stomatal conductivity (water pressure deficit dependency) |
---|
448 | !-- Ngao, Adam and Saudreau (2017) Table 1, limited from below according to Stewart (1988) |
---|
449 | !-- The coefficients of the linear dependence should better correspond to broad-leaved trees |
---|
450 | !-- than the coefficients from Stewart (1988) which correspond to conifer trees. |
---|
451 | vpd = MIN(MAX(vpd,770.0_wp),3820.0_wp) |
---|
452 | f3 = -2e-4_wp * vpd + 1.154_wp |
---|
453 | !-- Fourth function for calculation of stomatal conductivity (soil moisture dependency) |
---|
454 | !-- Residual soil water content |
---|
455 | !-- van Wijk et al. (1998; Tree Physiology 20) eq. 7 |
---|
456 | !-- TODO - over LSM surface might be calculated from LSM parameters |
---|
457 | rswc = ( m_sat - m_soil ) / ( m_sat - m_wilt ) |
---|
458 | !-- van Wijk et al. (1998; Tree Physiology 20) eq. 5-6 (it is a reformulation of eq. 22-23 of Stewart(1988)) |
---|
459 | f4 = MAX(0._wp, MIN(1.0_wp - 0.041_wp * EXP(3.2_wp * rswc), 1.0_wp - 0.041_wp)) |
---|
460 | !-- Stomatal conductivity |
---|
461 | !-- Stewart (1988; Agric. and Forest. Meteorol. 43) eq. 12 |
---|
462 | !-- (notation according to Ngao, Adam and Saudreau (2017) and others) |
---|
463 | g_s = g_s_max * f1 * f2 * f3 * f4 + 1.0e-10_wp |
---|
464 | !-- Decoupling factor |
---|
465 | !-- Daudet et al. (1999) eq. 6 |
---|
466 | d_fact = (sat_press_d / gama_psychr + 2._wp ) / & |
---|
467 | (sat_press_d / gama_psychr + 2._wp + 2 * g_b / g_s ) |
---|
468 | !-- Equilibrium evaporation rate |
---|
469 | !-- Daudet et al. (1999) eq. 4 |
---|
470 | e_eq = (pcbsw + pcblw) * v_lad * sat_press_d / & |
---|
471 | gama_psychr /( sat_press_d / gama_psychr + 2.0_wp ) / l_v |
---|
472 | !-- Imposed evaporation rate |
---|
473 | !-- Daudet et al. (1999) eq. 5 |
---|
474 | e_imp = r_d * pt(k,j,i) * exner(k) / hyp(k) * c_p * g_s * vpd / gama_psychr / l_v |
---|
475 | !-- Evaporation rate |
---|
476 | !-- Daudet et al. (1999) eq. 3 |
---|
477 | !-- (evaporation rate is limited to non-negative values) |
---|
478 | evapor_rate = MAX(d_fact * e_eq + ( 1.0_wp - d_fact ) * e_imp, 0.0_wp) |
---|
479 | !-- Conversion of evaporation rate to q tendency in gridbox |
---|
480 | !-- dq/dt = E * LAD * V_g / (rho_air * V_g) |
---|
481 | pcbtr = evapor_rate * r_d * pt(k,j,i) * exner(k) * lad_s(kk,j,i) / hyp(k) !-- = dq/dt |
---|
482 | !-- latent heat from evaporation |
---|
483 | pcblh = pcbtr * lv_d_cp !-- = - dT/dt |
---|
484 | |
---|
485 | END SUBROUTINE pcm_calc_transpiration_rate |
---|
486 | |
---|
487 | |
---|
488 | !------------------------------------------------------------------------------! |
---|
489 | ! Description: |
---|
490 | ! ------------ |
---|
491 | !> Check data output for plant canopy model |
---|
492 | !------------------------------------------------------------------------------! |
---|
493 | SUBROUTINE pcm_check_data_output( var, unit ) |
---|
494 | |
---|
495 | |
---|
496 | USE control_parameters, & |
---|
497 | ONLY: message_string, urban_surface |
---|
498 | |
---|
499 | IMPLICIT NONE |
---|
500 | |
---|
501 | CHARACTER (LEN=*) :: unit !< |
---|
502 | CHARACTER (LEN=*) :: var !< |
---|
503 | |
---|
504 | |
---|
505 | SELECT CASE ( TRIM( var ) ) |
---|
506 | |
---|
507 | CASE ( 'pcm_heatrate' ) |
---|
508 | IF ( cthf == 0.0_wp .AND. .NOT. urban_surface ) THEN |
---|
509 | message_string = 'output of "' // TRIM( var ) // '" requi' // & |
---|
510 | 'res setting of parameter cthf /= 0.0' |
---|
511 | CALL message( 'pcm_check_data_output', 'PA1000', 1, 2, 0, 6, 0 ) |
---|
512 | ENDIF |
---|
513 | unit = 'K s-1' |
---|
514 | |
---|
515 | CASE ( 'pcm_transpirationrate' ) |
---|
516 | unit = 'kg kg-1 s-1' |
---|
517 | |
---|
518 | CASE ( 'pcm_latentrate' ) |
---|
519 | unit = 'K s-1' |
---|
520 | |
---|
521 | CASE ( 'pcm_bowenratio' ) |
---|
522 | unit = 'K s-1' |
---|
523 | |
---|
524 | CASE ( 'pcm_lad' ) |
---|
525 | unit = 'm2 m-3' |
---|
526 | |
---|
527 | |
---|
528 | CASE DEFAULT |
---|
529 | unit = 'illegal' |
---|
530 | |
---|
531 | END SELECT |
---|
532 | |
---|
533 | |
---|
534 | END SUBROUTINE pcm_check_data_output |
---|
535 | |
---|
536 | |
---|
537 | !------------------------------------------------------------------------------! |
---|
538 | ! Description: |
---|
539 | ! ------------ |
---|
540 | !> Check parameters routine for plant canopy model |
---|
541 | !------------------------------------------------------------------------------! |
---|
542 | SUBROUTINE pcm_check_parameters |
---|
543 | |
---|
544 | USE control_parameters, & |
---|
545 | ONLY: coupling_char, message_string |
---|
546 | |
---|
547 | USE bulk_cloud_model_mod, & |
---|
548 | ONLY: bulk_cloud_model, microphysics_seifert |
---|
549 | |
---|
550 | USE netcdf_data_input_mod, & |
---|
551 | ONLY: input_file_static, input_pids_static |
---|
552 | |
---|
553 | |
---|
554 | IMPLICIT NONE |
---|
555 | |
---|
556 | |
---|
557 | IF ( canopy_drag_coeff == 0.0_wp ) THEN |
---|
558 | message_string = 'plant_canopy = .TRUE. requires a non-zero drag '// & |
---|
559 | 'coefficient & given value is canopy_drag_coeff = 0.0' |
---|
560 | CALL message( 'pcm_check_parameters', 'PA0041', 1, 2, 0, 6, 0 ) |
---|
561 | ENDIF |
---|
562 | |
---|
563 | IF ( ( alpha_lad /= 9999999.9_wp .AND. beta_lad == 9999999.9_wp ) .OR.& |
---|
564 | beta_lad /= 9999999.9_wp .AND. alpha_lad == 9999999.9_wp ) THEN |
---|
565 | message_string = 'using the beta function for the construction ' // & |
---|
566 | 'of the leaf area density profile requires ' // & |
---|
567 | 'both alpha_lad and beta_lad to be /= 9999999.9' |
---|
568 | CALL message( 'pcm_check_parameters', 'PA0118', 1, 2, 0, 6, 0 ) |
---|
569 | ENDIF |
---|
570 | |
---|
571 | IF ( calc_beta_lad_profile .AND. lai_beta == 0.0_wp ) THEN |
---|
572 | message_string = 'using the beta function for the construction ' // & |
---|
573 | 'of the leaf area density profile requires ' // & |
---|
574 | 'a non-zero lai_beta, but given value is ' // & |
---|
575 | 'lai_beta = 0.0' |
---|
576 | CALL message( 'pcm_check_parameters', 'PA0119', 1, 2, 0, 6, 0 ) |
---|
577 | ENDIF |
---|
578 | |
---|
579 | IF ( calc_beta_lad_profile .AND. lad_surface /= 0.0_wp ) THEN |
---|
580 | message_string = 'simultaneous setting of alpha_lad /= 9999999.9 '// & |
---|
581 | 'combined with beta_lad /= 9999999.9 ' // & |
---|
582 | 'and lad_surface /= 0.0 is not possible, ' // & |
---|
583 | 'use either vertical gradients or the beta ' // & |
---|
584 | 'function for the construction of the leaf area '// & |
---|
585 | 'density profile' |
---|
586 | CALL message( 'pcm_check_parameters', 'PA0120', 1, 2, 0, 6, 0 ) |
---|
587 | ENDIF |
---|
588 | |
---|
589 | IF ( bulk_cloud_model .AND. microphysics_seifert ) THEN |
---|
590 | message_string = 'plant_canopy = .TRUE. requires cloud_scheme /=' // & |
---|
591 | ' seifert_beheng' |
---|
592 | CALL message( 'pcm_check_parameters', 'PA0360', 1, 2, 0, 6, 0 ) |
---|
593 | ENDIF |
---|
594 | ! |
---|
595 | !-- If dynamic input file is used, canopy need to be read from file |
---|
596 | IF ( input_pids_static .AND. & |
---|
597 | TRIM( canopy_mode ) /= 'read_from_file_3d' ) THEN |
---|
598 | message_string = 'Usage of dynamic input file ' // & |
---|
599 | TRIM( input_file_static ) // & |
---|
600 | TRIM( coupling_char ) // ' requires ' // & |
---|
601 | 'canopy_mode = read_from_file_3d' |
---|
602 | CALL message( 'pcm_check_parameters', 'PA0999', 1, 2, 0, 6, 0 ) |
---|
603 | ENDIF |
---|
604 | |
---|
605 | |
---|
606 | END SUBROUTINE pcm_check_parameters |
---|
607 | |
---|
608 | |
---|
609 | !------------------------------------------------------------------------------! |
---|
610 | ! |
---|
611 | ! Description: |
---|
612 | ! ------------ |
---|
613 | !> Subroutine defining 3D output variables |
---|
614 | !------------------------------------------------------------------------------! |
---|
615 | SUBROUTINE pcm_data_output_3d( av, variable, found, local_pf, fill_value, & |
---|
616 | nzb_do, nzt_do ) |
---|
617 | |
---|
618 | USE indices |
---|
619 | |
---|
620 | USE kinds |
---|
621 | |
---|
622 | |
---|
623 | IMPLICIT NONE |
---|
624 | |
---|
625 | CHARACTER (LEN=*) :: variable !< |
---|
626 | |
---|
627 | INTEGER(iwp) :: av !< |
---|
628 | INTEGER(iwp) :: i !< |
---|
629 | INTEGER(iwp) :: j !< |
---|
630 | INTEGER(iwp) :: k !< |
---|
631 | INTEGER(iwp) :: k_topo !< topography top index |
---|
632 | INTEGER(iwp) :: nzb_do !< lower limit of the data output (usually 0) |
---|
633 | INTEGER(iwp) :: nzt_do !< vertical upper limit of the data output (usually nz_do3d) |
---|
634 | |
---|
635 | LOGICAL :: found !< |
---|
636 | |
---|
637 | REAL(wp) :: fill_value |
---|
638 | REAL(sp), DIMENSION(nxl:nxr,nys:nyn,nzb_do:nzt_do) :: local_pf !< |
---|
639 | |
---|
640 | |
---|
641 | found = .TRUE. |
---|
642 | |
---|
643 | local_pf = REAL( fill_value, KIND = 4 ) |
---|
644 | |
---|
645 | SELECT CASE ( TRIM( variable ) ) |
---|
646 | |
---|
647 | CASE ( 'pcm_heatrate' ) |
---|
648 | IF ( av == 0 ) THEN |
---|
649 | DO i = nxl, nxr |
---|
650 | DO j = nys, nyn |
---|
651 | IF ( pch_index_ji(j,i) /= 0 ) THEN |
---|
652 | k_topo = get_topography_top_index_ji( j, i, 's' ) |
---|
653 | DO k = k_topo, k_topo + pch_index_ji(j,i) |
---|
654 | local_pf(i,j,k) = pc_heating_rate(k-k_topo,j,i) |
---|
655 | ENDDO |
---|
656 | ENDIF |
---|
657 | ENDDO |
---|
658 | ENDDO |
---|
659 | ENDIF |
---|
660 | |
---|
661 | CASE ( 'pcm_transpirationrate' ) |
---|
662 | IF ( av == 0 ) THEN |
---|
663 | DO i = nxl, nxr |
---|
664 | DO j = nys, nyn |
---|
665 | IF ( pch_index_ji(j,i) /= 0 ) THEN |
---|
666 | k_topo = get_topography_top_index_ji( j, i, 's' ) |
---|
667 | DO k = k_topo, k_topo + pch_index_ji(j,i) |
---|
668 | local_pf(i,j,k) = pc_transpiration_rate(k-k_topo,j,i) |
---|
669 | ENDDO |
---|
670 | ENDIF |
---|
671 | ENDDO |
---|
672 | ENDDO |
---|
673 | ENDIF |
---|
674 | |
---|
675 | CASE ( 'pcm_latentrate' ) |
---|
676 | IF ( av == 0 ) THEN |
---|
677 | DO i = nxl, nxr |
---|
678 | DO j = nys, nyn |
---|
679 | IF ( pch_index_ji(j,i) /= 0 ) THEN |
---|
680 | k_topo = get_topography_top_index_ji( j, i, 's' ) |
---|
681 | DO k = k_topo, k_topo + pch_index_ji(j,i) |
---|
682 | local_pf(i,j,k) = pc_latent_rate(k-k_topo,j,i) |
---|
683 | ENDDO |
---|
684 | ENDIF |
---|
685 | ENDDO |
---|
686 | ENDDO |
---|
687 | ENDIF |
---|
688 | |
---|
689 | CASE ( 'pcm_bowenratio' ) |
---|
690 | IF ( av == 0 ) THEN |
---|
691 | DO i = nxl, nxr |
---|
692 | DO j = nys, nyn |
---|
693 | IF ( pch_index_ji(j,i) /= 0 ) THEN |
---|
694 | k_topo = get_topography_top_index_ji( j, i, 's' ) |
---|
695 | DO k = k_topo, k_topo + pch_index_ji(j,i) |
---|
696 | IF ( pc_latent_rate(k-k_topo,j,i) /= 0._wp ) THEN |
---|
697 | local_pf(i,j,k) = pc_heating_rate(k-k_topo,j,i) / & |
---|
698 | pc_latent_rate(k-k_topo,j,i) |
---|
699 | ENDIF |
---|
700 | ENDDO |
---|
701 | ENDIF |
---|
702 | ENDDO |
---|
703 | ENDDO |
---|
704 | ENDIF |
---|
705 | |
---|
706 | CASE ( 'pcm_lad' ) |
---|
707 | IF ( av == 0 ) THEN |
---|
708 | DO i = nxl, nxr |
---|
709 | DO j = nys, nyn |
---|
710 | IF ( pch_index_ji(j,i) /= 0 ) THEN |
---|
711 | k_topo = get_topography_top_index_ji( j, i, 's' ) |
---|
712 | DO k = k_topo, k_topo + pch_index_ji(j,i) |
---|
713 | local_pf(i,j,k) = lad_s(k-k_topo,j,i) |
---|
714 | ENDDO |
---|
715 | ENDIF |
---|
716 | ENDDO |
---|
717 | ENDDO |
---|
718 | ENDIF |
---|
719 | |
---|
720 | |
---|
721 | CASE DEFAULT |
---|
722 | found = .FALSE. |
---|
723 | |
---|
724 | END SELECT |
---|
725 | |
---|
726 | |
---|
727 | END SUBROUTINE pcm_data_output_3d |
---|
728 | |
---|
729 | !------------------------------------------------------------------------------! |
---|
730 | ! |
---|
731 | ! Description: |
---|
732 | ! ------------ |
---|
733 | !> Subroutine defining appropriate grid for netcdf variables. |
---|
734 | !> It is called from subroutine netcdf. |
---|
735 | !------------------------------------------------------------------------------! |
---|
736 | SUBROUTINE pcm_define_netcdf_grid( var, found, grid_x, grid_y, grid_z ) |
---|
737 | |
---|
738 | IMPLICIT NONE |
---|
739 | |
---|
740 | CHARACTER (LEN=*), INTENT(IN) :: var !< |
---|
741 | LOGICAL, INTENT(OUT) :: found !< |
---|
742 | CHARACTER (LEN=*), INTENT(OUT) :: grid_x !< |
---|
743 | CHARACTER (LEN=*), INTENT(OUT) :: grid_y !< |
---|
744 | CHARACTER (LEN=*), INTENT(OUT) :: grid_z !< |
---|
745 | |
---|
746 | found = .TRUE. |
---|
747 | |
---|
748 | ! |
---|
749 | !-- Check for the grid |
---|
750 | SELECT CASE ( TRIM( var ) ) |
---|
751 | |
---|
752 | CASE ( 'pcm_heatrate', 'pcm_lad', 'pcm_transpirationrate', 'pcm_latentrate', 'pcm_bowenratio') |
---|
753 | grid_x = 'x' |
---|
754 | grid_y = 'y' |
---|
755 | grid_z = 'zu' |
---|
756 | |
---|
757 | CASE DEFAULT |
---|
758 | found = .FALSE. |
---|
759 | grid_x = 'none' |
---|
760 | grid_y = 'none' |
---|
761 | grid_z = 'none' |
---|
762 | END SELECT |
---|
763 | |
---|
764 | END SUBROUTINE pcm_define_netcdf_grid |
---|
765 | |
---|
766 | |
---|
767 | !------------------------------------------------------------------------------! |
---|
768 | ! Description: |
---|
769 | ! ------------ |
---|
770 | !> Header output for plant canopy model |
---|
771 | !------------------------------------------------------------------------------! |
---|
772 | SUBROUTINE pcm_header ( io ) |
---|
773 | |
---|
774 | USE control_parameters, & |
---|
775 | ONLY: passive_scalar |
---|
776 | |
---|
777 | |
---|
778 | IMPLICIT NONE |
---|
779 | |
---|
780 | CHARACTER (LEN=10) :: coor_chr !< |
---|
781 | |
---|
782 | CHARACTER (LEN=86) :: coordinates !< |
---|
783 | CHARACTER (LEN=86) :: gradients !< |
---|
784 | CHARACTER (LEN=86) :: leaf_area_density !< |
---|
785 | CHARACTER (LEN=86) :: slices !< |
---|
786 | |
---|
787 | INTEGER(iwp) :: i !< |
---|
788 | INTEGER(iwp), INTENT(IN) :: io !< Unit of the output file |
---|
789 | INTEGER(iwp) :: k !< |
---|
790 | |
---|
791 | REAL(wp) :: canopy_height !< canopy height (in m) |
---|
792 | |
---|
793 | canopy_height = zw(pch_index) |
---|
794 | |
---|
795 | WRITE ( io, 1 ) canopy_mode, canopy_height, pch_index, & |
---|
796 | canopy_drag_coeff |
---|
797 | IF ( passive_scalar ) THEN |
---|
798 | WRITE ( io, 2 ) leaf_scalar_exch_coeff, & |
---|
799 | leaf_surface_conc |
---|
800 | ENDIF |
---|
801 | |
---|
802 | ! |
---|
803 | !-- Heat flux at the top of vegetation |
---|
804 | WRITE ( io, 3 ) cthf |
---|
805 | |
---|
806 | ! |
---|
807 | !-- Leaf area density profile, calculated either from given vertical |
---|
808 | !-- gradients or from beta probability density function. |
---|
809 | IF ( .NOT. calc_beta_lad_profile ) THEN |
---|
810 | |
---|
811 | !-- Building output strings, starting with surface value |
---|
812 | WRITE ( leaf_area_density, '(F7.4)' ) lad_surface |
---|
813 | gradients = '------' |
---|
814 | slices = ' 0' |
---|
815 | coordinates = ' 0.0' |
---|
816 | i = 1 |
---|
817 | DO WHILE ( i < 11 .AND. lad_vertical_gradient_level_ind(i) & |
---|
818 | /= -9999 ) |
---|
819 | |
---|
820 | WRITE (coor_chr,'(F7.2)') lad(lad_vertical_gradient_level_ind(i)) |
---|
821 | leaf_area_density = TRIM( leaf_area_density ) // ' ' // & |
---|
822 | TRIM( coor_chr ) |
---|
823 | |
---|
824 | WRITE (coor_chr,'(F7.2)') lad_vertical_gradient(i) |
---|
825 | gradients = TRIM( gradients ) // ' ' // TRIM( coor_chr ) |
---|
826 | |
---|
827 | WRITE (coor_chr,'(I7)') lad_vertical_gradient_level_ind(i) |
---|
828 | slices = TRIM( slices ) // ' ' // TRIM( coor_chr ) |
---|
829 | |
---|
830 | WRITE (coor_chr,'(F7.1)') lad_vertical_gradient_level(i) |
---|
831 | coordinates = TRIM( coordinates ) // ' ' // TRIM( coor_chr ) |
---|
832 | |
---|
833 | i = i + 1 |
---|
834 | ENDDO |
---|
835 | |
---|
836 | WRITE ( io, 4 ) TRIM( coordinates ), TRIM( leaf_area_density ), & |
---|
837 | TRIM( gradients ), TRIM( slices ) |
---|
838 | |
---|
839 | ELSE |
---|
840 | |
---|
841 | WRITE ( leaf_area_density, '(F7.4)' ) lad_surface |
---|
842 | coordinates = ' 0.0' |
---|
843 | |
---|
844 | DO k = 1, pch_index |
---|
845 | |
---|
846 | WRITE (coor_chr,'(F7.2)') lad(k) |
---|
847 | leaf_area_density = TRIM( leaf_area_density ) // ' ' // & |
---|
848 | TRIM( coor_chr ) |
---|
849 | |
---|
850 | WRITE (coor_chr,'(F7.1)') zu(k) |
---|
851 | coordinates = TRIM( coordinates ) // ' ' // TRIM( coor_chr ) |
---|
852 | |
---|
853 | ENDDO |
---|
854 | |
---|
855 | WRITE ( io, 5 ) TRIM( coordinates ), TRIM( leaf_area_density ), & |
---|
856 | alpha_lad, beta_lad, lai_beta |
---|
857 | |
---|
858 | ENDIF |
---|
859 | |
---|
860 | 1 FORMAT (//' Vegetation canopy (drag) model:'/ & |
---|
861 | ' ------------------------------'// & |
---|
862 | ' Canopy mode: ', A / & |
---|
863 | ' Canopy height: ',F6.2,'m (',I4,' grid points)' / & |
---|
864 | ' Leaf drag coefficient: ',F6.2 /) |
---|
865 | 2 FORMAT (/ ' Scalar exchange coefficient: ',F6.2 / & |
---|
866 | ' Scalar concentration at leaf surfaces in kg/m**3: ',F6.2 /) |
---|
867 | 3 FORMAT (' Predefined constant heatflux at the top of the vegetation: ',F6.2, & |
---|
868 | ' K m/s') |
---|
869 | 4 FORMAT (/ ' Characteristic levels of the leaf area density:'// & |
---|
870 | ' Height: ',A,' m'/ & |
---|
871 | ' Leaf area density: ',A,' m**2/m**3'/ & |
---|
872 | ' Gradient: ',A,' m**2/m**4'/ & |
---|
873 | ' Gridpoint: ',A) |
---|
874 | 5 FORMAT (//' Characteristic levels of the leaf area density and coefficients:'& |
---|
875 | // ' Height: ',A,' m'/ & |
---|
876 | ' Leaf area density: ',A,' m**2/m**3'/ & |
---|
877 | ' Coefficient alpha: ',F6.2 / & |
---|
878 | ' Coefficient beta: ',F6.2 / & |
---|
879 | ' Leaf area index: ',F6.2,' m**2/m**2' /) |
---|
880 | |
---|
881 | END SUBROUTINE pcm_header |
---|
882 | |
---|
883 | |
---|
884 | !------------------------------------------------------------------------------! |
---|
885 | ! Description: |
---|
886 | ! ------------ |
---|
887 | !> Initialization of the plant canopy model |
---|
888 | !------------------------------------------------------------------------------! |
---|
889 | SUBROUTINE pcm_init |
---|
890 | |
---|
891 | |
---|
892 | USE control_parameters, & |
---|
893 | ONLY: message_string, ocean_mode |
---|
894 | |
---|
895 | USE netcdf_data_input_mod, & |
---|
896 | ONLY: leaf_area_density_f |
---|
897 | |
---|
898 | USE surface_mod, & |
---|
899 | ONLY: surf_def_h, surf_lsm_h, surf_usm_h |
---|
900 | |
---|
901 | IMPLICIT NONE |
---|
902 | |
---|
903 | INTEGER(iwp) :: i !< running index |
---|
904 | INTEGER(iwp) :: j !< running index |
---|
905 | INTEGER(iwp) :: k !< running index |
---|
906 | INTEGER(iwp) :: m !< running index |
---|
907 | INTEGER(iwp) :: pch_index_l |
---|
908 | |
---|
909 | REAL(wp) :: int_bpdf !< vertical integral for lad-profile construction |
---|
910 | REAL(wp) :: gradient !< gradient for lad-profile construction |
---|
911 | REAL(wp) :: canopy_height !< canopy height for lad-profile construction |
---|
912 | |
---|
913 | CALL location_message( 'initializing plant canopy model', .FALSE. ) |
---|
914 | ! |
---|
915 | !-- Allocate one-dimensional arrays for the computation of the |
---|
916 | !-- leaf area density (lad) profile |
---|
917 | ALLOCATE( lad(0:nz+1), pre_lad(0:nz+1) ) |
---|
918 | lad = 0.0_wp |
---|
919 | pre_lad = 0.0_wp |
---|
920 | |
---|
921 | ! |
---|
922 | !-- Set flag that indicates that the lad-profile shall be calculated by using |
---|
923 | !-- a beta probability density function |
---|
924 | IF ( alpha_lad /= 9999999.9_wp .AND. beta_lad /= 9999999.9_wp ) THEN |
---|
925 | calc_beta_lad_profile = .TRUE. |
---|
926 | ENDIF |
---|
927 | |
---|
928 | |
---|
929 | ! |
---|
930 | !-- Compute the profile of leaf area density used in the plant |
---|
931 | !-- canopy model. The profile can either be constructed from |
---|
932 | !-- prescribed vertical gradients of the leaf area density or by |
---|
933 | !-- using a beta probability density function (see e.g. Markkanen et al., |
---|
934 | !-- 2003: Boundary-Layer Meteorology, 106, 437-459) |
---|
935 | IF ( .NOT. calc_beta_lad_profile ) THEN |
---|
936 | |
---|
937 | ! |
---|
938 | !-- Use vertical gradients for lad-profile construction |
---|
939 | i = 1 |
---|
940 | gradient = 0.0_wp |
---|
941 | |
---|
942 | IF ( .NOT. ocean_mode ) THEN |
---|
943 | |
---|
944 | lad(0) = lad_surface |
---|
945 | lad_vertical_gradient_level_ind(1) = 0 |
---|
946 | |
---|
947 | DO k = 1, pch_index |
---|
948 | IF ( i < 11 ) THEN |
---|
949 | IF ( lad_vertical_gradient_level(i) < zu(k) .AND. & |
---|
950 | lad_vertical_gradient_level(i) >= 0.0_wp ) THEN |
---|
951 | gradient = lad_vertical_gradient(i) |
---|
952 | lad_vertical_gradient_level_ind(i) = k - 1 |
---|
953 | i = i + 1 |
---|
954 | ENDIF |
---|
955 | ENDIF |
---|
956 | IF ( gradient /= 0.0_wp ) THEN |
---|
957 | IF ( k /= 1 ) THEN |
---|
958 | lad(k) = lad(k-1) + dzu(k) * gradient |
---|
959 | ELSE |
---|
960 | lad(k) = lad_surface + dzu(k) * gradient |
---|
961 | ENDIF |
---|
962 | ELSE |
---|
963 | lad(k) = lad(k-1) |
---|
964 | ENDIF |
---|
965 | ENDDO |
---|
966 | |
---|
967 | ENDIF |
---|
968 | |
---|
969 | ! |
---|
970 | !-- In case of no given leaf area density gradients, choose a vanishing |
---|
971 | !-- gradient. This information is used for the HEADER and the RUN_CONTROL |
---|
972 | !-- file. |
---|
973 | IF ( lad_vertical_gradient_level(1) == -9999999.9_wp ) THEN |
---|
974 | lad_vertical_gradient_level(1) = 0.0_wp |
---|
975 | ENDIF |
---|
976 | |
---|
977 | ELSE |
---|
978 | |
---|
979 | ! |
---|
980 | !-- Use beta function for lad-profile construction |
---|
981 | int_bpdf = 0.0_wp |
---|
982 | canopy_height = zw(pch_index) |
---|
983 | |
---|
984 | DO k = 0, pch_index |
---|
985 | int_bpdf = int_bpdf + & |
---|
986 | ( ( ( zw(k) / canopy_height )**( alpha_lad-1.0_wp ) ) * & |
---|
987 | ( ( 1.0_wp - ( zw(k) / canopy_height ) )**( & |
---|
988 | beta_lad-1.0_wp ) ) & |
---|
989 | * ( ( zw(k+1)-zw(k) ) / canopy_height ) ) |
---|
990 | ENDDO |
---|
991 | |
---|
992 | ! |
---|
993 | !-- Preliminary lad profile (defined on w-grid) |
---|
994 | DO k = 0, pch_index |
---|
995 | pre_lad(k) = lai_beta * & |
---|
996 | ( ( ( zw(k) / canopy_height )**( alpha_lad-1.0_wp ) ) & |
---|
997 | * ( ( 1.0_wp - ( zw(k) / canopy_height ) )**( & |
---|
998 | beta_lad-1.0_wp ) ) / int_bpdf & |
---|
999 | ) / canopy_height |
---|
1000 | ENDDO |
---|
1001 | |
---|
1002 | ! |
---|
1003 | !-- Final lad profile (defined on scalar-grid level, since most prognostic |
---|
1004 | !-- quantities are defined there, hence, less interpolation is required |
---|
1005 | !-- when calculating the canopy tendencies) |
---|
1006 | lad(0) = pre_lad(0) |
---|
1007 | DO k = 1, pch_index |
---|
1008 | lad(k) = 0.5 * ( pre_lad(k-1) + pre_lad(k) ) |
---|
1009 | ENDDO |
---|
1010 | |
---|
1011 | ENDIF |
---|
1012 | |
---|
1013 | ! |
---|
1014 | !-- Allocate 3D-array for the leaf area density (lad_s). |
---|
1015 | ALLOCATE( lad_s(nzb:nzt+1,nysg:nyng,nxlg:nxrg) ) |
---|
1016 | |
---|
1017 | ! |
---|
1018 | !-- Initialize canopy parameters cdc (canopy drag coefficient), |
---|
1019 | !-- lsec (leaf scalar exchange coefficient), lsc (leaf surface concentration) |
---|
1020 | !-- with the prescribed values |
---|
1021 | cdc = canopy_drag_coeff |
---|
1022 | lsec = leaf_scalar_exch_coeff |
---|
1023 | lsc = leaf_surface_conc |
---|
1024 | |
---|
1025 | ! |
---|
1026 | !-- Initialization of the canopy coverage in the model domain: |
---|
1027 | !-- Setting the parameter canopy_mode = 'block' initializes a canopy, which |
---|
1028 | !-- fully covers the domain surface |
---|
1029 | SELECT CASE ( TRIM( canopy_mode ) ) |
---|
1030 | |
---|
1031 | CASE( 'block' ) |
---|
1032 | |
---|
1033 | DO i = nxlg, nxrg |
---|
1034 | DO j = nysg, nyng |
---|
1035 | lad_s(:,j,i) = lad(:) |
---|
1036 | ENDDO |
---|
1037 | ENDDO |
---|
1038 | |
---|
1039 | CASE ( 'read_from_file_3d' ) |
---|
1040 | ! |
---|
1041 | !-- Initialize LAD with data from file. If LAD is given in NetCDF file, |
---|
1042 | !-- use these values, else take LAD profiles from ASCII file. |
---|
1043 | !-- Please note, in NetCDF file LAD is only given up to the maximum |
---|
1044 | !-- canopy top, indicated by leaf_area_density_f%nz. |
---|
1045 | lad_s = 0.0_wp |
---|
1046 | IF ( leaf_area_density_f%from_file ) THEN |
---|
1047 | ! |
---|
1048 | !-- Set also pch_index, used to be the upper bound of the vertical |
---|
1049 | !-- loops. Therefore, use the global top of the canopy layer. |
---|
1050 | pch_index = leaf_area_density_f%nz - 1 |
---|
1051 | |
---|
1052 | DO i = nxl, nxr |
---|
1053 | DO j = nys, nyn |
---|
1054 | DO k = 0, leaf_area_density_f%nz - 1 |
---|
1055 | IF ( leaf_area_density_f%var(k,j,i) /= & |
---|
1056 | leaf_area_density_f%fill ) & |
---|
1057 | lad_s(k,j,i) = leaf_area_density_f%var(k,j,i) |
---|
1058 | ENDDO |
---|
1059 | ENDDO |
---|
1060 | ENDDO |
---|
1061 | CALL exchange_horiz( lad_s, nbgp ) |
---|
1062 | ! |
---|
1063 | ! ASCII file |
---|
1064 | !-- Initialize canopy parameters cdc (canopy drag coefficient), |
---|
1065 | !-- lsec (leaf scalar exchange coefficient), lsc (leaf surface concentration) |
---|
1066 | !-- from file which contains complete 3D data (separate vertical profiles for |
---|
1067 | !-- each location). |
---|
1068 | ELSE |
---|
1069 | CALL pcm_read_plant_canopy_3d |
---|
1070 | ENDIF |
---|
1071 | |
---|
1072 | CASE DEFAULT |
---|
1073 | ! |
---|
1074 | !-- The DEFAULT case is reached either if the parameter |
---|
1075 | !-- canopy mode contains a wrong character string or if the |
---|
1076 | !-- user has coded a special case in the user interface. |
---|
1077 | !-- There, the subroutine user_init_plant_canopy checks |
---|
1078 | !-- which of these two conditions applies. |
---|
1079 | CALL user_init_plant_canopy |
---|
1080 | |
---|
1081 | END SELECT |
---|
1082 | ! |
---|
1083 | !-- Initialize 2D index array indicating canopy top index. |
---|
1084 | ALLOCATE( pch_index_ji(nysg:nyng,nxlg:nxrg) ) |
---|
1085 | pch_index_ji = 0 |
---|
1086 | |
---|
1087 | DO i = nxl, nxr |
---|
1088 | DO j = nys, nyn |
---|
1089 | DO k = 0, pch_index |
---|
1090 | IF ( lad_s(k,j,i) /= 0 ) pch_index_ji(j,i) = k |
---|
1091 | ENDDO |
---|
1092 | ! |
---|
1093 | !-- Check whether topography and local vegetation on top exceed |
---|
1094 | !-- height of the model domain. |
---|
1095 | k = get_topography_top_index_ji( j, i, 's' ) |
---|
1096 | IF ( k + pch_index_ji(j,i) >= nzt + 1 ) THEN |
---|
1097 | message_string = 'Local vegetation height on top of ' // & |
---|
1098 | 'topography exceeds height of model domain.' |
---|
1099 | CALL message( 'pcm_init', 'PA0999', 2, 2, 0, 6, 0 ) |
---|
1100 | ENDIF |
---|
1101 | |
---|
1102 | ENDDO |
---|
1103 | ENDDO |
---|
1104 | |
---|
1105 | CALL exchange_horiz_2d_int( pch_index_ji, nys, nyn, nxl, nxr, nbgp ) |
---|
1106 | ! |
---|
1107 | !-- Calculate global pch_index value (index of top of plant canopy from ground) |
---|
1108 | pch_index = MAXVAL( pch_index_ji ) |
---|
1109 | ! |
---|
1110 | !-- Exchange pch_index from all processors |
---|
1111 | #if defined( __parallel ) |
---|
1112 | CALL MPI_ALLREDUCE( MPI_IN_PLACE, pch_index, 1, MPI_INTEGER, & |
---|
1113 | MPI_MAX, comm2d, ierr) |
---|
1114 | #endif |
---|
1115 | |
---|
1116 | !-- Allocation of arrays pc_heating_rate, pc_transpiration_rate and pc_latent_rate |
---|
1117 | ALLOCATE( pc_heating_rate(0:pch_index,nysg:nyng,nxlg:nxrg) ) |
---|
1118 | IF ( humidity ) THEN |
---|
1119 | ALLOCATE( pc_transpiration_rate(0:pch_index,nysg:nyng,nxlg:nxrg) ) |
---|
1120 | pc_transpiration_rate = 0.0_wp |
---|
1121 | ALLOCATE( pc_latent_rate(0:pch_index,nysg:nyng,nxlg:nxrg) ) |
---|
1122 | pc_latent_rate = 0.0_wp |
---|
1123 | ENDIF |
---|
1124 | |
---|
1125 | ! |
---|
1126 | !-- Initialization of the canopy heat source distribution due to heating |
---|
1127 | !-- of the canopy layers by incoming solar radiation, in case that a non-zero |
---|
1128 | !-- value is set for the canopy top heat flux (cthf), which equals the |
---|
1129 | !-- available net radiation at canopy top. |
---|
1130 | !-- The heat source distribution is calculated by a decaying exponential |
---|
1131 | !-- function of the downward cumulative leaf area index (cum_lai_hf), |
---|
1132 | !-- assuming that the foliage inside the plant canopy is heated by solar |
---|
1133 | !-- radiation penetrating the canopy layers according to the distribution |
---|
1134 | !-- of net radiation as suggested by Brown & Covey (1966; Agric. Meteorol. 3, |
---|
1135 | !-- 73â96). This approach has been applied e.g. by Shaw & Schumann (1992; |
---|
1136 | !-- Bound.-Layer Meteorol. 61, 47â64). |
---|
1137 | !-- When using the radiation_interactions, canopy heating (pc_heating_rate) |
---|
1138 | !-- and plant canopy transpiration (pc_transpiration_rate, pc_latent_rate) |
---|
1139 | !-- are calculated in the RTM after the calculation of radiation. |
---|
1140 | !-- We cannot use variable radiation_interactions here to determine the situation |
---|
1141 | !-- as it is assigned in init_3d_model after the call of pcm_init. |
---|
1142 | IF ( cthf /= 0.0_wp ) THEN |
---|
1143 | |
---|
1144 | ALLOCATE( cum_lai_hf(nzb:nzt+1,nysg:nyng,nxlg:nxrg) ) |
---|
1145 | ! |
---|
1146 | !-- Piecewise calculation of the cumulative leaf area index by vertical |
---|
1147 | !-- integration of the leaf area density |
---|
1148 | cum_lai_hf(:,:,:) = 0.0_wp |
---|
1149 | DO i = nxlg, nxrg |
---|
1150 | DO j = nysg, nyng |
---|
1151 | DO k = pch_index_ji(j,i)-1, 0, -1 |
---|
1152 | IF ( k == pch_index_ji(j,i)-1 ) THEN |
---|
1153 | cum_lai_hf(k,j,i) = cum_lai_hf(k+1,j,i) + & |
---|
1154 | ( 0.5_wp * lad_s(k+1,j,i) * & |
---|
1155 | ( zw(k+1) - zu(k+1) ) ) + & |
---|
1156 | ( 0.5_wp * ( 0.5_wp * ( lad_s(k+1,j,i) + & |
---|
1157 | lad_s(k,j,i) ) + & |
---|
1158 | lad_s(k+1,j,i) ) * & |
---|
1159 | ( zu(k+1) - zw(k) ) ) |
---|
1160 | ELSE |
---|
1161 | cum_lai_hf(k,j,i) = cum_lai_hf(k+1,j,i) + & |
---|
1162 | ( 0.5_wp * ( 0.5_wp * ( lad_s(k+2,j,i) + & |
---|
1163 | lad_s(k+1,j,i) ) + & |
---|
1164 | lad_s(k+1,j,i) ) * & |
---|
1165 | ( zw(k+1) - zu(k+1) ) ) + & |
---|
1166 | ( 0.5_wp * ( 0.5_wp * ( lad_s(k+1,j,i) + & |
---|
1167 | lad_s(k,j,i) ) + & |
---|
1168 | lad_s(k+1,j,i) ) * & |
---|
1169 | ( zu(k+1) - zw(k) ) ) |
---|
1170 | ENDIF |
---|
1171 | ENDDO |
---|
1172 | ENDDO |
---|
1173 | ENDDO |
---|
1174 | |
---|
1175 | ! |
---|
1176 | !-- In areas with canopy the surface value of the canopy heat |
---|
1177 | !-- flux distribution overrides the surface heat flux (shf) |
---|
1178 | !-- Start with default surface type |
---|
1179 | DO m = 1, surf_def_h(0)%ns |
---|
1180 | k = surf_def_h(0)%k(m) |
---|
1181 | IF ( cum_lai_hf(0,j,i) /= 0.0_wp ) & |
---|
1182 | surf_def_h(0)%shf(m) = cthf * exp( -ext_coef * cum_lai_hf(0,j,i) ) |
---|
1183 | ENDDO |
---|
1184 | ! |
---|
1185 | !-- Natural surfaces |
---|
1186 | DO m = 1, surf_lsm_h%ns |
---|
1187 | k = surf_lsm_h%k(m) |
---|
1188 | IF ( cum_lai_hf(0,j,i) /= 0.0_wp ) & |
---|
1189 | surf_lsm_h%shf(m) = cthf * exp( -ext_coef * cum_lai_hf(0,j,i) ) |
---|
1190 | ENDDO |
---|
1191 | ! |
---|
1192 | !-- Urban surfaces |
---|
1193 | DO m = 1, surf_usm_h%ns |
---|
1194 | k = surf_usm_h%k(m) |
---|
1195 | IF ( cum_lai_hf(0,j,i) /= 0.0_wp ) & |
---|
1196 | surf_usm_h%shf(m) = cthf * exp( -ext_coef * cum_lai_hf(0,j,i) ) |
---|
1197 | ENDDO |
---|
1198 | ! |
---|
1199 | ! |
---|
1200 | !-- Calculation of the heating rate (K/s) within the different layers of |
---|
1201 | !-- the plant canopy. Calculation is only necessary in areas covered with |
---|
1202 | !-- canopy. |
---|
1203 | !-- Within the different canopy layers the plant-canopy heating |
---|
1204 | !-- rate (pc_heating_rate) is calculated as the vertical |
---|
1205 | !-- divergence of the canopy heat fluxes at the top and bottom |
---|
1206 | !-- of the respective layer |
---|
1207 | DO i = nxlg, nxrg |
---|
1208 | DO j = nysg, nyng |
---|
1209 | DO k = 1, pch_index_ji(j,i) |
---|
1210 | IF ( cum_lai_hf(0,j,i) /= 0.0_wp ) THEN |
---|
1211 | pc_heating_rate(k,j,i) = cthf * & |
---|
1212 | ( exp(-ext_coef*cum_lai_hf(k,j,i)) - & |
---|
1213 | exp(-ext_coef*cum_lai_hf(k-1,j,i) ) ) / dzw(k) |
---|
1214 | ENDIF |
---|
1215 | ENDDO |
---|
1216 | ENDDO |
---|
1217 | ENDDO |
---|
1218 | |
---|
1219 | ENDIF |
---|
1220 | |
---|
1221 | CALL location_message( 'finished', .TRUE. ) |
---|
1222 | |
---|
1223 | |
---|
1224 | END SUBROUTINE pcm_init |
---|
1225 | |
---|
1226 | |
---|
1227 | !------------------------------------------------------------------------------! |
---|
1228 | ! Description: |
---|
1229 | ! ------------ |
---|
1230 | !> Parin for &plant_canopy_parameters for plant canopy model |
---|
1231 | !------------------------------------------------------------------------------! |
---|
1232 | SUBROUTINE pcm_parin |
---|
1233 | |
---|
1234 | USE control_parameters, & |
---|
1235 | ONLY: message_string, plant_canopy |
---|
1236 | |
---|
1237 | IMPLICIT NONE |
---|
1238 | |
---|
1239 | CHARACTER (LEN=80) :: line !< dummy string that contains the current line of the parameter file |
---|
1240 | |
---|
1241 | NAMELIST /plant_canopy_parameters/ & |
---|
1242 | alpha_lad, beta_lad, canopy_drag_coeff, & |
---|
1243 | canopy_mode, cthf, & |
---|
1244 | lad_surface, lad_type_coef, & |
---|
1245 | lad_vertical_gradient, & |
---|
1246 | lad_vertical_gradient_level, & |
---|
1247 | lai_beta, & |
---|
1248 | leaf_scalar_exch_coeff, & |
---|
1249 | leaf_surface_conc, pch_index, & |
---|
1250 | plant_canopy_transpiration |
---|
1251 | |
---|
1252 | NAMELIST /canopy_par/ alpha_lad, beta_lad, canopy_drag_coeff, & |
---|
1253 | canopy_mode, cthf, & |
---|
1254 | lad_surface, lad_type_coef, & |
---|
1255 | lad_vertical_gradient, & |
---|
1256 | lad_vertical_gradient_level, & |
---|
1257 | lai_beta, & |
---|
1258 | leaf_scalar_exch_coeff, & |
---|
1259 | leaf_surface_conc, pch_index, & |
---|
1260 | plant_canopy_transpiration |
---|
1261 | |
---|
1262 | line = ' ' |
---|
1263 | |
---|
1264 | ! |
---|
1265 | !-- Try to find radiation model package |
---|
1266 | REWIND ( 11 ) |
---|
1267 | line = ' ' |
---|
1268 | DO WHILE ( INDEX( line, '&plant_canopy_parameters' ) == 0 ) |
---|
1269 | READ ( 11, '(A)', END=12 ) line |
---|
1270 | ENDDO |
---|
1271 | BACKSPACE ( 11 ) |
---|
1272 | |
---|
1273 | ! |
---|
1274 | !-- Read user-defined namelist |
---|
1275 | READ ( 11, plant_canopy_parameters, ERR = 10 ) |
---|
1276 | |
---|
1277 | ! |
---|
1278 | !-- Set flag that indicates that the radiation model is switched on |
---|
1279 | plant_canopy = .TRUE. |
---|
1280 | |
---|
1281 | GOTO 14 |
---|
1282 | |
---|
1283 | 10 BACKSPACE( 11 ) |
---|
1284 | READ( 11 , '(A)') line |
---|
1285 | CALL parin_fail_message( 'plant_canopy_parameters', line ) |
---|
1286 | ! |
---|
1287 | !-- Try to find old namelist |
---|
1288 | 12 REWIND ( 11 ) |
---|
1289 | line = ' ' |
---|
1290 | DO WHILE ( INDEX( line, '&canopy_par' ) == 0 ) |
---|
1291 | READ ( 11, '(A)', END=14 ) line |
---|
1292 | ENDDO |
---|
1293 | BACKSPACE ( 11 ) |
---|
1294 | |
---|
1295 | ! |
---|
1296 | !-- Read user-defined namelist |
---|
1297 | READ ( 11, canopy_par, ERR = 13, END = 14 ) |
---|
1298 | |
---|
1299 | message_string = 'namelist canopy_par is deprecated and will be ' // & |
---|
1300 | 'removed in near future. Please use namelist ' // & |
---|
1301 | 'plant_canopy_parameters instead' |
---|
1302 | CALL message( 'pcm_parin', 'PA0487', 0, 1, 0, 6, 0 ) |
---|
1303 | |
---|
1304 | ! |
---|
1305 | !-- Set flag that indicates that the radiation model is switched on |
---|
1306 | plant_canopy = .TRUE. |
---|
1307 | |
---|
1308 | GOTO 14 |
---|
1309 | |
---|
1310 | 13 BACKSPACE( 11 ) |
---|
1311 | READ( 11 , '(A)') line |
---|
1312 | CALL parin_fail_message( 'canopy_par', line ) |
---|
1313 | |
---|
1314 | 14 CONTINUE |
---|
1315 | |
---|
1316 | |
---|
1317 | END SUBROUTINE pcm_parin |
---|
1318 | |
---|
1319 | |
---|
1320 | |
---|
1321 | !------------------------------------------------------------------------------! |
---|
1322 | ! Description: |
---|
1323 | ! ------------ |
---|
1324 | ! |
---|
1325 | !> Loads 3D plant canopy data from file. File format is as follows: |
---|
1326 | !> |
---|
1327 | !> num_levels |
---|
1328 | !> dtype,x,y,pctype,value(nzb),value(nzb+1), ... ,value(nzb+num_levels-1) |
---|
1329 | !> dtype,x,y,pctype,value(nzb),value(nzb+1), ... ,value(nzb+num_levels-1) |
---|
1330 | !> dtype,x,y,pctype,value(nzb),value(nzb+1), ... ,value(nzb+num_levels-1) |
---|
1331 | !> ... |
---|
1332 | !> |
---|
1333 | !> i.e. first line determines number of levels and further lines represent plant |
---|
1334 | !> canopy data, one line per column and variable. In each data line, |
---|
1335 | !> dtype represents variable to be set: |
---|
1336 | !> |
---|
1337 | !> dtype=1: leaf area density (lad_s) |
---|
1338 | !> dtype=2....n: some additional plant canopy input data quantity |
---|
1339 | !> |
---|
1340 | !> Zeros are added automatically above num_levels until top of domain. Any |
---|
1341 | !> non-specified (x,y) columns have zero values as default. |
---|
1342 | !------------------------------------------------------------------------------! |
---|
1343 | SUBROUTINE pcm_read_plant_canopy_3d |
---|
1344 | |
---|
1345 | USE control_parameters, & |
---|
1346 | ONLY: coupling_char, message_string |
---|
1347 | |
---|
1348 | USE indices, & |
---|
1349 | ONLY: nbgp |
---|
1350 | |
---|
1351 | IMPLICIT NONE |
---|
1352 | |
---|
1353 | INTEGER(iwp) :: dtype !< type of input data (1=lad) |
---|
1354 | INTEGER(iwp) :: pctype !< type of plant canopy (deciduous,non-deciduous,...) |
---|
1355 | INTEGER(iwp) :: i, j !< running index |
---|
1356 | INTEGER(iwp) :: nzp !< number of vertical layers of plant canopy |
---|
1357 | INTEGER(iwp) :: nzpltop !< |
---|
1358 | INTEGER(iwp) :: nzpl !< |
---|
1359 | INTEGER(iwp) :: kk !< |
---|
1360 | |
---|
1361 | REAL(wp), DIMENSION(:), ALLOCATABLE :: col !< vertical column of input data |
---|
1362 | |
---|
1363 | ! |
---|
1364 | !-- Initialize lad_s array |
---|
1365 | lad_s = 0.0_wp |
---|
1366 | |
---|
1367 | ! |
---|
1368 | !-- Open and read plant canopy input data |
---|
1369 | OPEN(152, FILE='PLANT_CANOPY_DATA_3D' // TRIM( coupling_char ), & |
---|
1370 | ACCESS='SEQUENTIAL', ACTION='READ', STATUS='OLD', & |
---|
1371 | FORM='FORMATTED', ERR=515) |
---|
1372 | READ(152, *, ERR=516, END=517) nzp !< read first line = number of vertical layers |
---|
1373 | nzpltop = MIN(nzt+1, nzb+nzp-1) |
---|
1374 | nzpl = nzpltop - nzb + 1 !< no. of layers to assign |
---|
1375 | ALLOCATE( col(0:nzp-1) ) |
---|
1376 | |
---|
1377 | DO |
---|
1378 | READ(152, *, ERR=516, END=517) dtype, i, j, pctype, col(:) |
---|
1379 | IF ( i < nxlg .OR. i > nxrg .OR. j < nysg .OR. j > nyng ) CYCLE |
---|
1380 | |
---|
1381 | SELECT CASE (dtype) |
---|
1382 | CASE( 1 ) !< leaf area density |
---|
1383 | ! |
---|
1384 | !-- This is just the pure canopy layer assumed to be grounded to |
---|
1385 | !-- a flat domain surface. At locations where plant canopy sits |
---|
1386 | !-- on top of any kind of topography, the vertical plant column |
---|
1387 | !-- must be "lifted", which is done in SUBROUTINE pcm_tendency. |
---|
1388 | IF ( pctype < 0 .OR. pctype > 10 ) THEN !< incorrect plant canopy type |
---|
1389 | WRITE( message_string, * ) 'Incorrect type of plant canopy. ' // & |
---|
1390 | 'Allowed values 0 <= pctype <= 10, ' // & |
---|
1391 | 'but pctype is ', pctype |
---|
1392 | CALL message( 'pcm_read_plant_canopy_3d', 'PA0349', 1, 2, 0, 6, 0 ) |
---|
1393 | ENDIF |
---|
1394 | kk = get_topography_top_index_ji( j, i, 's' ) |
---|
1395 | lad_s(nzb:nzpltop-kk, j, i) = col(kk:nzpl-1)*lad_type_coef(pctype) |
---|
1396 | CASE DEFAULT |
---|
1397 | WRITE(message_string, '(a,i2,a)') & |
---|
1398 | 'Unknown record type in file PLANT_CANOPY_DATA_3D: "', dtype, '"' |
---|
1399 | CALL message( 'pcm_read_plant_canopy_3d', 'PA0530', 1, 2, 0, 6, 0 ) |
---|
1400 | END SELECT |
---|
1401 | ENDDO |
---|
1402 | |
---|
1403 | 515 message_string = 'error opening file PLANT_CANOPY_DATA_3D' |
---|
1404 | CALL message( 'pcm_read_plant_canopy_3d', 'PA0531', 1, 2, 0, 6, 0 ) |
---|
1405 | |
---|
1406 | 516 message_string = 'error reading file PLANT_CANOPY_DATA_3D' |
---|
1407 | CALL message( 'pcm_read_plant_canopy_3d', 'PA0532', 1, 2, 0, 6, 0 ) |
---|
1408 | |
---|
1409 | 517 CLOSE(152) |
---|
1410 | DEALLOCATE( col ) |
---|
1411 | |
---|
1412 | CALL exchange_horiz( lad_s, nbgp ) |
---|
1413 | |
---|
1414 | END SUBROUTINE pcm_read_plant_canopy_3d |
---|
1415 | |
---|
1416 | |
---|
1417 | |
---|
1418 | !------------------------------------------------------------------------------! |
---|
1419 | ! Description: |
---|
1420 | ! ------------ |
---|
1421 | !> Calculation of the tendency terms, accounting for the effect of the plant |
---|
1422 | !> canopy on momentum and scalar quantities. |
---|
1423 | !> |
---|
1424 | !> The canopy is located where the leaf area density lad_s(k,j,i) > 0.0 |
---|
1425 | !> (defined on scalar grid), as initialized in subroutine pcm_init. |
---|
1426 | !> The lad on the w-grid is vertically interpolated from the surrounding |
---|
1427 | !> lad_s. The upper boundary of the canopy is defined on the w-grid at |
---|
1428 | !> k = pch_index. Here, the lad is zero. |
---|
1429 | !> |
---|
1430 | !> The canopy drag must be limited (previously accounted for by calculation of |
---|
1431 | !> a limiting canopy timestep for the determination of the maximum LES timestep |
---|
1432 | !> in subroutine timestep), since it is physically impossible that the canopy |
---|
1433 | !> drag alone can locally change the sign of a velocity component. This |
---|
1434 | !> limitation is realized by calculating preliminary tendencies and velocities. |
---|
1435 | !> It is subsequently checked if the preliminary new velocity has a different |
---|
1436 | !> sign than the current velocity. If so, the tendency is limited in a way that |
---|
1437 | !> the velocity can at maximum be reduced to zero by the canopy drag. |
---|
1438 | !> |
---|
1439 | !> |
---|
1440 | !> Call for all grid points |
---|
1441 | !------------------------------------------------------------------------------! |
---|
1442 | SUBROUTINE pcm_tendency( component ) |
---|
1443 | |
---|
1444 | |
---|
1445 | USE control_parameters, & |
---|
1446 | ONLY: dt_3d, message_string |
---|
1447 | |
---|
1448 | USE kinds |
---|
1449 | |
---|
1450 | IMPLICIT NONE |
---|
1451 | |
---|
1452 | INTEGER(iwp) :: component !< prognostic variable (u,v,w,pt,q,e) |
---|
1453 | INTEGER(iwp) :: i !< running index |
---|
1454 | INTEGER(iwp) :: j !< running index |
---|
1455 | INTEGER(iwp) :: k !< running index |
---|
1456 | INTEGER(iwp) :: k_wall !< vertical index of topography top |
---|
1457 | INTEGER(iwp) :: kk !< running index for flat lad arrays |
---|
1458 | |
---|
1459 | REAL(wp) :: ddt_3d !< inverse of the LES timestep (dt_3d) |
---|
1460 | REAL(wp) :: lad_local !< local lad value |
---|
1461 | REAL(wp) :: pre_tend !< preliminary tendency |
---|
1462 | REAL(wp) :: pre_u !< preliminary u-value |
---|
1463 | REAL(wp) :: pre_v !< preliminary v-value |
---|
1464 | REAL(wp) :: pre_w !< preliminary w-value |
---|
1465 | |
---|
1466 | |
---|
1467 | ddt_3d = 1.0_wp / dt_3d |
---|
1468 | |
---|
1469 | ! |
---|
1470 | !-- Compute drag for the three velocity components and the SGS-TKE: |
---|
1471 | SELECT CASE ( component ) |
---|
1472 | |
---|
1473 | ! |
---|
1474 | !-- u-component |
---|
1475 | CASE ( 1 ) |
---|
1476 | DO i = nxlu, nxr |
---|
1477 | DO j = nys, nyn |
---|
1478 | ! |
---|
1479 | !-- Determine topography-top index on u-grid |
---|
1480 | k_wall = get_topography_top_index_ji( j, i, 'u' ) |
---|
1481 | DO k = k_wall+1, k_wall + pch_index_ji(j,i) |
---|
1482 | |
---|
1483 | kk = k - k_wall !- lad arrays are defined flat |
---|
1484 | ! |
---|
1485 | !-- In order to create sharp boundaries of the plant canopy, |
---|
1486 | !-- the lad on the u-grid at index (k,j,i) is equal to |
---|
1487 | !-- lad_s(k,j,i), rather than being interpolated from the |
---|
1488 | !-- surrounding lad_s, because this would yield smaller lad |
---|
1489 | !-- at the canopy boundaries than inside of the canopy. |
---|
1490 | !-- For the same reason, the lad at the rightmost(i+1)canopy |
---|
1491 | !-- boundary on the u-grid equals lad_s(k,j,i). |
---|
1492 | lad_local = lad_s(kk,j,i) |
---|
1493 | IF ( lad_local == 0.0_wp .AND. lad_s(kk,j,i-1) > 0.0_wp )& |
---|
1494 | THEN |
---|
1495 | lad_local = lad_s(kk,j,i-1) |
---|
1496 | ENDIF |
---|
1497 | |
---|
1498 | pre_tend = 0.0_wp |
---|
1499 | pre_u = 0.0_wp |
---|
1500 | ! |
---|
1501 | !-- Calculate preliminary value (pre_tend) of the tendency |
---|
1502 | pre_tend = - cdc * & |
---|
1503 | lad_local * & |
---|
1504 | SQRT( u(k,j,i)**2 + & |
---|
1505 | ( 0.25_wp * ( v(k,j,i-1) + & |
---|
1506 | v(k,j,i) + & |
---|
1507 | v(k,j+1,i) + & |
---|
1508 | v(k,j+1,i-1) ) & |
---|
1509 | )**2 + & |
---|
1510 | ( 0.25_wp * ( w(k-1,j,i-1) + & |
---|
1511 | w(k-1,j,i) + & |
---|
1512 | w(k,j,i-1) + & |
---|
1513 | w(k,j,i) ) & |
---|
1514 | )**2 & |
---|
1515 | ) * & |
---|
1516 | u(k,j,i) |
---|
1517 | |
---|
1518 | ! |
---|
1519 | !-- Calculate preliminary new velocity, based on pre_tend |
---|
1520 | pre_u = u(k,j,i) + dt_3d * pre_tend |
---|
1521 | ! |
---|
1522 | !-- Compare sign of old velocity and new preliminary velocity, |
---|
1523 | !-- and in case the signs are different, limit the tendency |
---|
1524 | IF ( SIGN(pre_u,u(k,j,i)) /= pre_u ) THEN |
---|
1525 | pre_tend = - u(k,j,i) * ddt_3d |
---|
1526 | ELSE |
---|
1527 | pre_tend = pre_tend |
---|
1528 | ENDIF |
---|
1529 | ! |
---|
1530 | !-- Calculate final tendency |
---|
1531 | tend(k,j,i) = tend(k,j,i) + pre_tend |
---|
1532 | |
---|
1533 | ENDDO |
---|
1534 | ENDDO |
---|
1535 | ENDDO |
---|
1536 | |
---|
1537 | ! |
---|
1538 | !-- v-component |
---|
1539 | CASE ( 2 ) |
---|
1540 | DO i = nxl, nxr |
---|
1541 | DO j = nysv, nyn |
---|
1542 | ! |
---|
1543 | !-- Determine topography-top index on v-grid |
---|
1544 | k_wall = get_topography_top_index_ji( j, i, 'v' ) |
---|
1545 | |
---|
1546 | DO k = k_wall+1, k_wall + pch_index_ji(j,i) |
---|
1547 | |
---|
1548 | kk = k - k_wall !- lad arrays are defined flat |
---|
1549 | ! |
---|
1550 | !-- In order to create sharp boundaries of the plant canopy, |
---|
1551 | !-- the lad on the v-grid at index (k,j,i) is equal to |
---|
1552 | !-- lad_s(k,j,i), rather than being interpolated from the |
---|
1553 | !-- surrounding lad_s, because this would yield smaller lad |
---|
1554 | !-- at the canopy boundaries than inside of the canopy. |
---|
1555 | !-- For the same reason, the lad at the northmost(j+1) canopy |
---|
1556 | !-- boundary on the v-grid equals lad_s(k,j,i). |
---|
1557 | lad_local = lad_s(kk,j,i) |
---|
1558 | IF ( lad_local == 0.0_wp .AND. lad_s(kk,j-1,i) > 0.0_wp )& |
---|
1559 | THEN |
---|
1560 | lad_local = lad_s(kk,j-1,i) |
---|
1561 | ENDIF |
---|
1562 | |
---|
1563 | pre_tend = 0.0_wp |
---|
1564 | pre_v = 0.0_wp |
---|
1565 | ! |
---|
1566 | !-- Calculate preliminary value (pre_tend) of the tendency |
---|
1567 | pre_tend = - cdc * & |
---|
1568 | lad_local * & |
---|
1569 | SQRT( ( 0.25_wp * ( u(k,j-1,i) + & |
---|
1570 | u(k,j-1,i+1) + & |
---|
1571 | u(k,j,i) + & |
---|
1572 | u(k,j,i+1) ) & |
---|
1573 | )**2 + & |
---|
1574 | v(k,j,i)**2 + & |
---|
1575 | ( 0.25_wp * ( w(k-1,j-1,i) + & |
---|
1576 | w(k-1,j,i) + & |
---|
1577 | w(k,j-1,i) + & |
---|
1578 | w(k,j,i) ) & |
---|
1579 | )**2 & |
---|
1580 | ) * & |
---|
1581 | v(k,j,i) |
---|
1582 | |
---|
1583 | ! |
---|
1584 | !-- Calculate preliminary new velocity, based on pre_tend |
---|
1585 | pre_v = v(k,j,i) + dt_3d * pre_tend |
---|
1586 | ! |
---|
1587 | !-- Compare sign of old velocity and new preliminary velocity, |
---|
1588 | !-- and in case the signs are different, limit the tendency |
---|
1589 | IF ( SIGN(pre_v,v(k,j,i)) /= pre_v ) THEN |
---|
1590 | pre_tend = - v(k,j,i) * ddt_3d |
---|
1591 | ELSE |
---|
1592 | pre_tend = pre_tend |
---|
1593 | ENDIF |
---|
1594 | ! |
---|
1595 | !-- Calculate final tendency |
---|
1596 | tend(k,j,i) = tend(k,j,i) + pre_tend |
---|
1597 | |
---|
1598 | ENDDO |
---|
1599 | ENDDO |
---|
1600 | ENDDO |
---|
1601 | |
---|
1602 | ! |
---|
1603 | !-- w-component |
---|
1604 | CASE ( 3 ) |
---|
1605 | DO i = nxl, nxr |
---|
1606 | DO j = nys, nyn |
---|
1607 | ! |
---|
1608 | !-- Determine topography-top index on w-grid |
---|
1609 | k_wall = get_topography_top_index_ji( j, i, 'w' ) |
---|
1610 | |
---|
1611 | DO k = k_wall+1, k_wall + pch_index_ji(j,i) - 1 |
---|
1612 | |
---|
1613 | kk = k - k_wall !- lad arrays are defined flat |
---|
1614 | |
---|
1615 | pre_tend = 0.0_wp |
---|
1616 | pre_w = 0.0_wp |
---|
1617 | ! |
---|
1618 | !-- Calculate preliminary value (pre_tend) of the tendency |
---|
1619 | pre_tend = - cdc * & |
---|
1620 | (0.5_wp * & |
---|
1621 | ( lad_s(kk+1,j,i) + lad_s(kk,j,i) )) * & |
---|
1622 | SQRT( ( 0.25_wp * ( u(k,j,i) + & |
---|
1623 | u(k,j,i+1) + & |
---|
1624 | u(k+1,j,i) + & |
---|
1625 | u(k+1,j,i+1) ) & |
---|
1626 | )**2 + & |
---|
1627 | ( 0.25_wp * ( v(k,j,i) + & |
---|
1628 | v(k,j+1,i) + & |
---|
1629 | v(k+1,j,i) + & |
---|
1630 | v(k+1,j+1,i) ) & |
---|
1631 | )**2 + & |
---|
1632 | w(k,j,i)**2 & |
---|
1633 | ) * & |
---|
1634 | w(k,j,i) |
---|
1635 | ! |
---|
1636 | !-- Calculate preliminary new velocity, based on pre_tend |
---|
1637 | pre_w = w(k,j,i) + dt_3d * pre_tend |
---|
1638 | ! |
---|
1639 | !-- Compare sign of old velocity and new preliminary velocity, |
---|
1640 | !-- and in case the signs are different, limit the tendency |
---|
1641 | IF ( SIGN(pre_w,w(k,j,i)) /= pre_w ) THEN |
---|
1642 | pre_tend = - w(k,j,i) * ddt_3d |
---|
1643 | ELSE |
---|
1644 | pre_tend = pre_tend |
---|
1645 | ENDIF |
---|
1646 | ! |
---|
1647 | !-- Calculate final tendency |
---|
1648 | tend(k,j,i) = tend(k,j,i) + pre_tend |
---|
1649 | |
---|
1650 | ENDDO |
---|
1651 | ENDDO |
---|
1652 | ENDDO |
---|
1653 | |
---|
1654 | ! |
---|
1655 | !-- potential temperature |
---|
1656 | CASE ( 4 ) |
---|
1657 | IF ( humidity ) THEN |
---|
1658 | DO i = nxl, nxr |
---|
1659 | DO j = nys, nyn |
---|
1660 | !-- Determine topography-top index on scalar-grid |
---|
1661 | k_wall = get_topography_top_index_ji( j, i, 's' ) |
---|
1662 | DO k = k_wall+1, k_wall + pch_index_ji(j,i) |
---|
1663 | kk = k - k_wall !- lad arrays are defined flat |
---|
1664 | tend(k,j,i) = tend(k,j,i) + pc_heating_rate(kk,j,i) - pc_latent_rate(kk,j,i) |
---|
1665 | ENDDO |
---|
1666 | ENDDO |
---|
1667 | ENDDO |
---|
1668 | ELSE |
---|
1669 | DO i = nxl, nxr |
---|
1670 | DO j = nys, nyn |
---|
1671 | !-- Determine topography-top index on scalar-grid |
---|
1672 | k_wall = get_topography_top_index_ji( j, i, 's' ) |
---|
1673 | DO k = k_wall+1, k_wall + pch_index_ji(j,i) |
---|
1674 | kk = k - k_wall !- lad arrays are defined flat |
---|
1675 | tend(k,j,i) = tend(k,j,i) + pc_heating_rate(kk,j,i) |
---|
1676 | ENDDO |
---|
1677 | ENDDO |
---|
1678 | ENDDO |
---|
1679 | ENDIF |
---|
1680 | |
---|
1681 | ! |
---|
1682 | !-- humidity |
---|
1683 | CASE ( 5 ) |
---|
1684 | DO i = nxl, nxr |
---|
1685 | DO j = nys, nyn |
---|
1686 | ! |
---|
1687 | !-- Determine topography-top index on scalar-grid |
---|
1688 | k_wall = get_topography_top_index_ji( j, i, 's' ) |
---|
1689 | |
---|
1690 | DO k = k_wall+1, k_wall + pch_index_ji(j,i) |
---|
1691 | |
---|
1692 | kk = k - k_wall !- lad arrays are defined flat |
---|
1693 | |
---|
1694 | IF ( .NOT. plant_canopy_transpiration ) THEN |
---|
1695 | ! pc_transpiration_rate is calculated in radiation model |
---|
1696 | ! in case of plant_canopy_transpiration = .T. |
---|
1697 | ! to include also the dependecy to the radiation |
---|
1698 | ! in the plant canopy box |
---|
1699 | pc_transpiration_rate(kk,j,i) = - lsec & |
---|
1700 | * lad_s(kk,j,i) * & |
---|
1701 | SQRT( ( 0.5_wp * ( u(k,j,i) + & |
---|
1702 | u(k,j,i+1) ) & |
---|
1703 | )**2 + & |
---|
1704 | ( 0.5_wp * ( v(k,j,i) + & |
---|
1705 | v(k,j+1,i) ) & |
---|
1706 | )**2 + & |
---|
1707 | ( 0.5_wp * ( w(k-1,j,i) + & |
---|
1708 | w(k,j,i) ) & |
---|
1709 | )**2 & |
---|
1710 | ) * & |
---|
1711 | ( q(k,j,i) - lsc ) |
---|
1712 | ENDIF |
---|
1713 | |
---|
1714 | tend(k,j,i) = tend(k,j,i) + pc_transpiration_rate(kk,j,i) |
---|
1715 | ENDDO |
---|
1716 | ENDDO |
---|
1717 | ENDDO |
---|
1718 | |
---|
1719 | ! |
---|
1720 | !-- sgs-tke |
---|
1721 | CASE ( 6 ) |
---|
1722 | DO i = nxl, nxr |
---|
1723 | DO j = nys, nyn |
---|
1724 | ! |
---|
1725 | !-- Determine topography-top index on scalar-grid |
---|
1726 | k_wall = get_topography_top_index_ji( j, i, 's' ) |
---|
1727 | |
---|
1728 | DO k = k_wall+1, k_wall + pch_index_ji(j,i) |
---|
1729 | |
---|
1730 | kk = k - k_wall !- lad arrays are defined flat |
---|
1731 | tend(k,j,i) = tend(k,j,i) - & |
---|
1732 | 2.0_wp * cdc * & |
---|
1733 | lad_s(kk,j,i) * & |
---|
1734 | SQRT( ( 0.5_wp * ( u(k,j,i) + & |
---|
1735 | u(k,j,i+1) ) & |
---|
1736 | )**2 + & |
---|
1737 | ( 0.5_wp * ( v(k,j,i) + & |
---|
1738 | v(k,j+1,i) ) & |
---|
1739 | )**2 + & |
---|
1740 | ( 0.5_wp * ( w(k,j,i) + & |
---|
1741 | w(k+1,j,i) ) & |
---|
1742 | )**2 & |
---|
1743 | ) * & |
---|
1744 | e(k,j,i) |
---|
1745 | ENDDO |
---|
1746 | ENDDO |
---|
1747 | ENDDO |
---|
1748 | ! |
---|
1749 | !-- scalar concentration |
---|
1750 | CASE ( 7 ) |
---|
1751 | DO i = nxl, nxr |
---|
1752 | DO j = nys, nyn |
---|
1753 | ! |
---|
1754 | !-- Determine topography-top index on scalar-grid |
---|
1755 | k_wall = get_topography_top_index_ji( j, i, 's' ) |
---|
1756 | |
---|
1757 | DO k = k_wall+1, k_wall + pch_index_ji(j,i) |
---|
1758 | |
---|
1759 | kk = k - k_wall !- lad arrays are defined flat |
---|
1760 | tend(k,j,i) = tend(k,j,i) - & |
---|
1761 | lsec * & |
---|
1762 | lad_s(kk,j,i) * & |
---|
1763 | SQRT( ( 0.5_wp * ( u(k,j,i) + & |
---|
1764 | u(k,j,i+1) ) & |
---|
1765 | )**2 + & |
---|
1766 | ( 0.5_wp * ( v(k,j,i) + & |
---|
1767 | v(k,j+1,i) ) & |
---|
1768 | )**2 + & |
---|
1769 | ( 0.5_wp * ( w(k-1,j,i) + & |
---|
1770 | w(k,j,i) ) & |
---|
1771 | )**2 & |
---|
1772 | ) * & |
---|
1773 | ( s(k,j,i) - lsc ) |
---|
1774 | ENDDO |
---|
1775 | ENDDO |
---|
1776 | ENDDO |
---|
1777 | |
---|
1778 | |
---|
1779 | |
---|
1780 | CASE DEFAULT |
---|
1781 | |
---|
1782 | WRITE( message_string, * ) 'wrong component: ', component |
---|
1783 | CALL message( 'pcm_tendency', 'PA0279', 1, 2, 0, 6, 0 ) |
---|
1784 | |
---|
1785 | END SELECT |
---|
1786 | |
---|
1787 | END SUBROUTINE pcm_tendency |
---|
1788 | |
---|
1789 | |
---|
1790 | !------------------------------------------------------------------------------! |
---|
1791 | ! Description: |
---|
1792 | ! ------------ |
---|
1793 | !> Calculation of the tendency terms, accounting for the effect of the plant |
---|
1794 | !> canopy on momentum and scalar quantities. |
---|
1795 | !> |
---|
1796 | !> The canopy is located where the leaf area density lad_s(k,j,i) > 0.0 |
---|
1797 | !> (defined on scalar grid), as initialized in subroutine pcm_init. |
---|
1798 | !> The lad on the w-grid is vertically interpolated from the surrounding |
---|
1799 | !> lad_s. The upper boundary of the canopy is defined on the w-grid at |
---|
1800 | !> k = pch_index. Here, the lad is zero. |
---|
1801 | !> |
---|
1802 | !> The canopy drag must be limited (previously accounted for by calculation of |
---|
1803 | !> a limiting canopy timestep for the determination of the maximum LES timestep |
---|
1804 | !> in subroutine timestep), since it is physically impossible that the canopy |
---|
1805 | !> drag alone can locally change the sign of a velocity component. This |
---|
1806 | !> limitation is realized by calculating preliminary tendencies and velocities. |
---|
1807 | !> It is subsequently checked if the preliminary new velocity has a different |
---|
1808 | !> sign than the current velocity. If so, the tendency is limited in a way that |
---|
1809 | !> the velocity can at maximum be reduced to zero by the canopy drag. |
---|
1810 | !> |
---|
1811 | !> |
---|
1812 | !> Call for grid point i,j |
---|
1813 | !------------------------------------------------------------------------------! |
---|
1814 | SUBROUTINE pcm_tendency_ij( i, j, component ) |
---|
1815 | |
---|
1816 | |
---|
1817 | USE control_parameters, & |
---|
1818 | ONLY: dt_3d, message_string |
---|
1819 | |
---|
1820 | USE kinds |
---|
1821 | |
---|
1822 | IMPLICIT NONE |
---|
1823 | |
---|
1824 | INTEGER(iwp) :: component !< prognostic variable (u,v,w,pt,q,e) |
---|
1825 | INTEGER(iwp) :: i !< running index |
---|
1826 | INTEGER(iwp) :: j !< running index |
---|
1827 | INTEGER(iwp) :: k !< running index |
---|
1828 | INTEGER(iwp) :: k_wall !< vertical index of topography top |
---|
1829 | INTEGER(iwp) :: kk !< running index for flat lad arrays |
---|
1830 | |
---|
1831 | REAL(wp) :: ddt_3d !< inverse of the LES timestep (dt_3d) |
---|
1832 | REAL(wp) :: lad_local !< local lad value |
---|
1833 | REAL(wp) :: pre_tend !< preliminary tendency |
---|
1834 | REAL(wp) :: pre_u !< preliminary u-value |
---|
1835 | REAL(wp) :: pre_v !< preliminary v-value |
---|
1836 | REAL(wp) :: pre_w !< preliminary w-value |
---|
1837 | |
---|
1838 | |
---|
1839 | ddt_3d = 1.0_wp / dt_3d |
---|
1840 | ! |
---|
1841 | !-- Compute drag for the three velocity components and the SGS-TKE |
---|
1842 | SELECT CASE ( component ) |
---|
1843 | |
---|
1844 | ! |
---|
1845 | !-- u-component |
---|
1846 | CASE ( 1 ) |
---|
1847 | ! |
---|
1848 | !-- Determine topography-top index on u-grid |
---|
1849 | k_wall = get_topography_top_index_ji( j, i, 'u' ) |
---|
1850 | DO k = k_wall + 1, k_wall + pch_index_ji(j,i) |
---|
1851 | |
---|
1852 | kk = k - k_wall !- lad arrays are defined flat |
---|
1853 | |
---|
1854 | ! |
---|
1855 | !-- In order to create sharp boundaries of the plant canopy, |
---|
1856 | !-- the lad on the u-grid at index (k,j,i) is equal to lad_s(k,j,i), |
---|
1857 | !-- rather than being interpolated from the surrounding lad_s, |
---|
1858 | !-- because this would yield smaller lad at the canopy boundaries |
---|
1859 | !-- than inside of the canopy. |
---|
1860 | !-- For the same reason, the lad at the rightmost(i+1)canopy |
---|
1861 | !-- boundary on the u-grid equals lad_s(k,j,i). |
---|
1862 | lad_local = lad_s(kk,j,i) |
---|
1863 | IF ( lad_local == 0.0_wp .AND. lad_s(kk,j,i-1) > 0.0_wp ) THEN |
---|
1864 | lad_local = lad_s(kk,j,i-1) |
---|
1865 | ENDIF |
---|
1866 | |
---|
1867 | pre_tend = 0.0_wp |
---|
1868 | pre_u = 0.0_wp |
---|
1869 | ! |
---|
1870 | !-- Calculate preliminary value (pre_tend) of the tendency |
---|
1871 | pre_tend = - cdc * & |
---|
1872 | lad_local * & |
---|
1873 | SQRT( u(k,j,i)**2 + & |
---|
1874 | ( 0.25_wp * ( v(k,j,i-1) + & |
---|
1875 | v(k,j,i) + & |
---|
1876 | v(k,j+1,i) + & |
---|
1877 | v(k,j+1,i-1) ) & |
---|
1878 | )**2 + & |
---|
1879 | ( 0.25_wp * ( w(k-1,j,i-1) + & |
---|
1880 | w(k-1,j,i) + & |
---|
1881 | w(k,j,i-1) + & |
---|
1882 | w(k,j,i) ) & |
---|
1883 | )**2 & |
---|
1884 | ) * & |
---|
1885 | u(k,j,i) |
---|
1886 | |
---|
1887 | ! |
---|
1888 | !-- Calculate preliminary new velocity, based on pre_tend |
---|
1889 | pre_u = u(k,j,i) + dt_3d * pre_tend |
---|
1890 | ! |
---|
1891 | !-- Compare sign of old velocity and new preliminary velocity, |
---|
1892 | !-- and in case the signs are different, limit the tendency |
---|
1893 | IF ( SIGN(pre_u,u(k,j,i)) /= pre_u ) THEN |
---|
1894 | pre_tend = - u(k,j,i) * ddt_3d |
---|
1895 | ELSE |
---|
1896 | pre_tend = pre_tend |
---|
1897 | ENDIF |
---|
1898 | ! |
---|
1899 | !-- Calculate final tendency |
---|
1900 | tend(k,j,i) = tend(k,j,i) + pre_tend |
---|
1901 | ENDDO |
---|
1902 | |
---|
1903 | |
---|
1904 | ! |
---|
1905 | !-- v-component |
---|
1906 | CASE ( 2 ) |
---|
1907 | ! |
---|
1908 | !-- Determine topography-top index on v-grid |
---|
1909 | k_wall = get_topography_top_index_ji( j, i, 'v' ) |
---|
1910 | |
---|
1911 | DO k = k_wall + 1, k_wall + pch_index_ji(j,i) |
---|
1912 | |
---|
1913 | kk = k - k_wall !- lad arrays are defined flat |
---|
1914 | ! |
---|
1915 | !-- In order to create sharp boundaries of the plant canopy, |
---|
1916 | !-- the lad on the v-grid at index (k,j,i) is equal to lad_s(k,j,i), |
---|
1917 | !-- rather than being interpolated from the surrounding lad_s, |
---|
1918 | !-- because this would yield smaller lad at the canopy boundaries |
---|
1919 | !-- than inside of the canopy. |
---|
1920 | !-- For the same reason, the lad at the northmost(j+1)canopy |
---|
1921 | !-- boundary on the v-grid equals lad_s(k,j,i). |
---|
1922 | lad_local = lad_s(kk,j,i) |
---|
1923 | IF ( lad_local == 0.0_wp .AND. lad_s(kk,j-1,i) > 0.0_wp ) THEN |
---|
1924 | lad_local = lad_s(kk,j-1,i) |
---|
1925 | ENDIF |
---|
1926 | |
---|
1927 | pre_tend = 0.0_wp |
---|
1928 | pre_v = 0.0_wp |
---|
1929 | ! |
---|
1930 | !-- Calculate preliminary value (pre_tend) of the tendency |
---|
1931 | pre_tend = - cdc * & |
---|
1932 | lad_local * & |
---|
1933 | SQRT( ( 0.25_wp * ( u(k,j-1,i) + & |
---|
1934 | u(k,j-1,i+1) + & |
---|
1935 | u(k,j,i) + & |
---|
1936 | u(k,j,i+1) ) & |
---|
1937 | )**2 + & |
---|
1938 | v(k,j,i)**2 + & |
---|
1939 | ( 0.25_wp * ( w(k-1,j-1,i) + & |
---|
1940 | w(k-1,j,i) + & |
---|
1941 | w(k,j-1,i) + & |
---|
1942 | w(k,j,i) ) & |
---|
1943 | )**2 & |
---|
1944 | ) * & |
---|
1945 | v(k,j,i) |
---|
1946 | |
---|
1947 | ! |
---|
1948 | !-- Calculate preliminary new velocity, based on pre_tend |
---|
1949 | pre_v = v(k,j,i) + dt_3d * pre_tend |
---|
1950 | ! |
---|
1951 | !-- Compare sign of old velocity and new preliminary velocity, |
---|
1952 | !-- and in case the signs are different, limit the tendency |
---|
1953 | IF ( SIGN(pre_v,v(k,j,i)) /= pre_v ) THEN |
---|
1954 | pre_tend = - v(k,j,i) * ddt_3d |
---|
1955 | ELSE |
---|
1956 | pre_tend = pre_tend |
---|
1957 | ENDIF |
---|
1958 | ! |
---|
1959 | !-- Calculate final tendency |
---|
1960 | tend(k,j,i) = tend(k,j,i) + pre_tend |
---|
1961 | ENDDO |
---|
1962 | |
---|
1963 | |
---|
1964 | ! |
---|
1965 | !-- w-component |
---|
1966 | CASE ( 3 ) |
---|
1967 | ! |
---|
1968 | !-- Determine topography-top index on w-grid |
---|
1969 | k_wall = get_topography_top_index_ji( j, i, 'w' ) |
---|
1970 | |
---|
1971 | DO k = k_wall + 1, k_wall + pch_index_ji(j,i) - 1 |
---|
1972 | |
---|
1973 | kk = k - k_wall !- lad arrays are defined flat |
---|
1974 | |
---|
1975 | pre_tend = 0.0_wp |
---|
1976 | pre_w = 0.0_wp |
---|
1977 | ! |
---|
1978 | !-- Calculate preliminary value (pre_tend) of the tendency |
---|
1979 | pre_tend = - cdc * & |
---|
1980 | (0.5_wp * & |
---|
1981 | ( lad_s(kk+1,j,i) + lad_s(kk,j,i) )) * & |
---|
1982 | SQRT( ( 0.25_wp * ( u(k,j,i) + & |
---|
1983 | u(k,j,i+1) + & |
---|
1984 | u(k+1,j,i) + & |
---|
1985 | u(k+1,j,i+1) ) & |
---|
1986 | )**2 + & |
---|
1987 | ( 0.25_wp * ( v(k,j,i) + & |
---|
1988 | v(k,j+1,i) + & |
---|
1989 | v(k+1,j,i) + & |
---|
1990 | v(k+1,j+1,i) ) & |
---|
1991 | )**2 + & |
---|
1992 | w(k,j,i)**2 & |
---|
1993 | ) * & |
---|
1994 | w(k,j,i) |
---|
1995 | ! |
---|
1996 | !-- Calculate preliminary new velocity, based on pre_tend |
---|
1997 | pre_w = w(k,j,i) + dt_3d * pre_tend |
---|
1998 | ! |
---|
1999 | !-- Compare sign of old velocity and new preliminary velocity, |
---|
2000 | !-- and in case the signs are different, limit the tendency |
---|
2001 | IF ( SIGN(pre_w,w(k,j,i)) /= pre_w ) THEN |
---|
2002 | pre_tend = - w(k,j,i) * ddt_3d |
---|
2003 | ELSE |
---|
2004 | pre_tend = pre_tend |
---|
2005 | ENDIF |
---|
2006 | ! |
---|
2007 | !-- Calculate final tendency |
---|
2008 | tend(k,j,i) = tend(k,j,i) + pre_tend |
---|
2009 | ENDDO |
---|
2010 | |
---|
2011 | ! |
---|
2012 | !-- potential temperature |
---|
2013 | CASE ( 4 ) |
---|
2014 | ! |
---|
2015 | !-- Determine topography-top index on scalar grid |
---|
2016 | k_wall = get_topography_top_index_ji( j, i, 's' ) |
---|
2017 | |
---|
2018 | IF ( humidity ) THEN |
---|
2019 | DO k = k_wall + 1, k_wall + pch_index_ji(j,i) |
---|
2020 | kk = k - k_wall !- lad arrays are defined flat |
---|
2021 | tend(k,j,i) = tend(k,j,i) + pc_heating_rate(kk,j,i) - & |
---|
2022 | pc_latent_rate(kk,j,i) |
---|
2023 | ENDDO |
---|
2024 | ELSE |
---|
2025 | DO k = k_wall + 1, k_wall + pch_index_ji(j,i) |
---|
2026 | kk = k - k_wall !- lad arrays are defined flat |
---|
2027 | tend(k,j,i) = tend(k,j,i) + pc_heating_rate(kk,j,i) |
---|
2028 | ENDDO |
---|
2029 | ENDIF |
---|
2030 | |
---|
2031 | ! |
---|
2032 | !-- humidity |
---|
2033 | CASE ( 5 ) |
---|
2034 | ! |
---|
2035 | !-- Determine topography-top index on scalar grid |
---|
2036 | k_wall = get_topography_top_index_ji( j, i, 's' ) |
---|
2037 | |
---|
2038 | DO k = k_wall + 1, k_wall + pch_index_ji(j,i) |
---|
2039 | kk = k - k_wall !- lad arrays are defined flat |
---|
2040 | IF ( .NOT. plant_canopy_transpiration ) THEN |
---|
2041 | ! pc_transpiration_rate is calculated in radiation model |
---|
2042 | ! in case of plant_canopy_transpiration = .T. |
---|
2043 | ! to include also the dependecy to the radiation |
---|
2044 | ! in the plant canopy box |
---|
2045 | pc_transpiration_rate(kk,j,i) = - lsec & |
---|
2046 | * lad_s(kk,j,i) * & |
---|
2047 | SQRT( ( 0.5_wp * ( u(k,j,i) + & |
---|
2048 | u(k,j,i+1) ) & |
---|
2049 | )**2 + & |
---|
2050 | ( 0.5_wp * ( v(k,j,i) + & |
---|
2051 | v(k,j+1,i) ) & |
---|
2052 | )**2 + & |
---|
2053 | ( 0.5_wp * ( w(k-1,j,i) + & |
---|
2054 | w(k,j,i) ) & |
---|
2055 | )**2 & |
---|
2056 | ) * & |
---|
2057 | ( q(k,j,i) - lsc ) |
---|
2058 | ENDIF |
---|
2059 | |
---|
2060 | tend(k,j,i) = tend(k,j,i) + pc_transpiration_rate(kk,j,i) |
---|
2061 | |
---|
2062 | ENDDO |
---|
2063 | |
---|
2064 | ! |
---|
2065 | !-- sgs-tke |
---|
2066 | CASE ( 6 ) |
---|
2067 | ! |
---|
2068 | !-- Determine topography-top index on scalar grid |
---|
2069 | k_wall = get_topography_top_index_ji( j, i, 's' ) |
---|
2070 | |
---|
2071 | DO k = k_wall + 1, k_wall + pch_index_ji(j,i) |
---|
2072 | |
---|
2073 | kk = k - k_wall |
---|
2074 | tend(k,j,i) = tend(k,j,i) - & |
---|
2075 | 2.0_wp * cdc * & |
---|
2076 | lad_s(kk,j,i) * & |
---|
2077 | SQRT( ( 0.5_wp * ( u(k,j,i) + & |
---|
2078 | u(k,j,i+1) ) & |
---|
2079 | )**2 + & |
---|
2080 | ( 0.5_wp * ( v(k,j,i) + & |
---|
2081 | v(k,j+1,i) ) & |
---|
2082 | )**2 + & |
---|
2083 | ( 0.5_wp * ( w(k,j,i) + & |
---|
2084 | w(k+1,j,i) ) & |
---|
2085 | )**2 & |
---|
2086 | ) * & |
---|
2087 | e(k,j,i) |
---|
2088 | ENDDO |
---|
2089 | |
---|
2090 | ! |
---|
2091 | !-- scalar concentration |
---|
2092 | CASE ( 7 ) |
---|
2093 | ! |
---|
2094 | !-- Determine topography-top index on scalar grid |
---|
2095 | k_wall = get_topography_top_index_ji( j, i, 's' ) |
---|
2096 | |
---|
2097 | DO k = k_wall + 1, k_wall + pch_index_ji(j,i) |
---|
2098 | |
---|
2099 | kk = k - k_wall |
---|
2100 | tend(k,j,i) = tend(k,j,i) - & |
---|
2101 | lsec * & |
---|
2102 | lad_s(kk,j,i) * & |
---|
2103 | SQRT( ( 0.5_wp * ( u(k,j,i) + & |
---|
2104 | u(k,j,i+1) ) & |
---|
2105 | )**2 + & |
---|
2106 | ( 0.5_wp * ( v(k,j,i) + & |
---|
2107 | v(k,j+1,i) ) & |
---|
2108 | )**2 + & |
---|
2109 | ( 0.5_wp * ( w(k-1,j,i) + & |
---|
2110 | w(k,j,i) ) & |
---|
2111 | )**2 & |
---|
2112 | ) * & |
---|
2113 | ( s(k,j,i) - lsc ) |
---|
2114 | ENDDO |
---|
2115 | |
---|
2116 | CASE DEFAULT |
---|
2117 | |
---|
2118 | WRITE( message_string, * ) 'wrong component: ', component |
---|
2119 | CALL message( 'pcm_tendency', 'PA0279', 1, 2, 0, 6, 0 ) |
---|
2120 | |
---|
2121 | END SELECT |
---|
2122 | |
---|
2123 | END SUBROUTINE pcm_tendency_ij |
---|
2124 | |
---|
2125 | |
---|
2126 | |
---|
2127 | END MODULE plant_canopy_model_mod |
---|