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source: palm/trunk/SOURCE/chem_photolysis_mod.f90 @ 2699

Last change on this file since 2699 was 2696, checked in by kanani, 7 years ago
Merge of branch palm4u into trunk
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1	!> @file chem_photolysis_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 1997-2017 Leibniz Universitaet Hannover
18	! Copyright 2017-2017 Karlsruhe Institute of Technology
19	!------------------------------------------------------------------------------!
20	!
21	! Current revisions:
22	! -----------------
23	!
24	!
25	! Former revisions:
26	! -----------------
27	! $Id: chem_photolysis_mod.f90 2696 2017-12-14 17:12:51Z kanani $
28	! Initial revision
29	!
30	!
31	!
32	!
33	! Authors:
34	! --------
35	! @author Renate Forkel
36	!
37	!
38	!------------------------------------------------------------------------------!
39	! Description:
40	! ------------
41	!> photolysis models and interfaces (Adapted from photolysis_model_mod.f90)
42	!> @todo Alles!
43	!------------------------------------------------------------------------------!
44	MODULE chem_photolysis_mod
45	#if defined( __chem )
46	USE arrays_3d, &
47	ONLY: dzw, hyp, pt, q, ql, zu, zw
48
49	USE constants, &
50	ONLY: pi
51
52	USE control_parameters, &
53	ONLY: time_since_reference_point
54
55	USE pegrid, ONLY: myid, threads_per_task
56
57	USE indices, &
58	ONLY: nxl, nxlg, nxr, nxrg, nyn, nyng, nys, nysg, nzb, nzt
59
60	USE radiation_model_mod, &
61	ONLY: calc_zenith, zenith
62	!day, day_init, lat, lambda, lon, &
63	!time_utc, time_utc_init, !FKa: This is now handled by date_and_time_mod
64
65	USE control_parameters, &
66	ONLY: initializing_actions
67	! ONLY: cloud_droplets, cloud_physics, g, initializing_actions, &
68	! large_scale_forcing, lsf_surf, phi, pt_surface, rho_surface, &
69	! surface_pressure, time_since_reference_point
70
71	USE chem_gasphase_mod, &
72	ONLY: nphot, phot_names, phot
73
74	USE chemistry_model_mod, &
75	ONLY: phot_frequen, photolysis_scheme
76
77	USE chem_modules, &
78	ONLY: chem_debug2
79
80	! REAL(wp), DIMENSION(0:0) :: zenith, & !< cosine of solar zenith angle
81	! sun_dir_lat, & !< solar directional vector in latitudes
82	! sun_dir_lon !< solar directional vector in longitudes
83	USE kinds
84
85	#if defined ( __netcdf )
86	USE NETCDF
87	#endif
88
89
90	IMPLICIT NONE
91
92
93	! LOGICAL :: unscheduled_photolysis_calls = .TRUE., & !< flag parameter indicating whether additional calls of the photolysis code are allowed
94	! constant_albedo = .FALSE., & !< flag parameter indicating whether the albedo may change depending on zenith
95	! force_photolysis_call = .FALSE., & !< flag parameter for unscheduled photolysis calls
96	! photolysis = .FALSE., & !< flag parameter indicating whether the photolysis model is used
97	! sun_up = .TRUE., & !< flag parameter indicating whether the sun is up or down
98	! photolysis = .TRUE., & !< flag parameter indicing whether photolysis shall be calculated
99	! sun_direction = .FALSE. !< flag parameter indicing whether solar direction shall be calculated
100
101	!-- Parameters for constant photolysis frequencies
102	INTEGER,PARAMETER :: nconst = 15 !< available predefined photolysis prequencies for constant
103
104	! Names for predefined fixed photolysis frequencies at zenith angle 0
105	CHARACTER(LEN=10), PARAMETER, DIMENSION(nconst) :: names_c = (/ &
106	'J_O31D ','J_O33P ','J_NO2 ','J_HNO3 ','J_RCHO ', &
107	'J ','J ','J ','J ','J ', &
108	'J ','J ','J ','J ','J ' /)
109	! Photolysis frequency at zenith angle 0 in 1/s
110	REAL(wp), PARAMETER, DIMENSION(nconst) :: phot0 = (/ &
111	2.489E-05_wp,3.556E-04_wp, 8.89E-03_wp,5.334E-07_wp,3.734E-05_wp, &
112	0.0000E00_wp,0.0000E00_wp,0.0000E00_wp,0.0000E00_wp,0.0000E00_wp, &
113	0.0000E00_wp,0.0000E00_wp,0.0000E00_wp,0.0000E00_wp,0.0000E00_wp /)
114
115
116	!-- Parameters for simple photolysis frequencies
117	INTEGER,PARAMETER :: nsimple = 15 !< available predefined photolysis prequencies for simpel parameterisation
118	! Names for simple photolysis frequencies parameterisation (
119	CHARACTER(LEN=10), PARAMETER, DIMENSION(nsimple) :: names_s = (/ &
120	'J_O31D ','J_O33P ','J_H2O2 ','J_NO2 ','J_NO3_A ', &
121	'J_NO3_B ','J_HONO ','J_HNO3 ','J_HCHO_A ','J_HCHO_B ', &
122	'J_CH3CHO ','J ','J ','J ','J_RCHO ' /)
123
124	!-- Parameters for simeple photolysis frequencies from MCM (http://mcm.leeds.ac.uk/MCM)
125	!-- Saunders et al., 2003, Atmos. Chem. Phys., 3, 161-180
126	REAL(wp), PARAMETER, DIMENSION(nconst) :: par_l = (/ &
127	6.073E-05_wp,4.775E-04_wp,1.041E-05_wp,1.165E-02_wp,2.485E-02_wp, &
128	1.747E-01_wp,2.644E-03_wp,9.312E-07_wp,4.642E-05_wp,6.853E-05_wp, &
129	7.344E-06_wp,0.0000E00_wp,0.0000E00_wp,0.000E00_wp, 6.853E-05_wp /)
130
131	REAL(wp), PARAMETER, DIMENSION(nconst) :: par_m = (/ &
132	1.743_wp, 0.298_wp, 0.723_wp, 0.244_wp, 0.168_wp, &
133	0.155_wp, 0.261_wp, 1.230_wp, 0.762_wp, 0.477_wp, &
134	1.202_wp, 0.000_wp, 0.000_wp, 0.000_wp, 0.477_wp /)
135
136	REAL(wp), PARAMETER, DIMENSION(nconst) :: par_n = (/ &
137	0.474_wp, 0.080_wp, 0.279_wp, 0.267_wp, 0.108_wp, &
138	0.125_wp, 0.288_wp, 0.307_wp, 0.353_wp, 0.323_wp, &
139	0.417_wp, 0.000_wp, 0.000_wp, 0.000_wp, 0.323_wp /)
140
141
142	REAL(wp) :: time_photolysis = 0.0_wp, & !< time since last call of photolysis code
143	dt_photolysis = 0.0_wp, & !< hotolysis model timestep
144	skip_time_do_photolysis = 0.0_wp !< Radiation model is not called before this time
145
146	REAL(wp) :: cosz = 0.7_wp !< cosine of Zenith angle (45 deg, if not specified otherwise)
147
148	!
149	!-- Variables and parameters used in Fast-J only
150	! ....
151
152	! INTERFACE photolysis_check_parameters
153	! MODULE PROCEDURE photolysis_check_parameters
154	! END INTERFACE photolysis_check_parameters
155
156	INTERFACE photolysis_constant
157	MODULE PROCEDURE photolysis_constant
158	END INTERFACE photolysis_constant
159
160	INTERFACE photolysis_simple
161	MODULE PROCEDURE photolysis_simple
162	END INTERFACE photolysis_simple
163	!
164	! INTERFACE photolysis_fastj
165	! MODULE PROCEDURE photolysis_fastj
166	! END INTERFACE photolysis_fastj
167	!
168	INTERFACE photolysis_control
169	MODULE PROCEDURE photolysis_control
170	END INTERFACE photolysis_control
171
172	! INTERFACE photolysis_header
173	! MODULE PROCEDURE photolysis_header
174	! END INTERFACE photolysis_header
175	!
176	INTERFACE photolysis_init
177	MODULE PROCEDURE photolysis_init
178	END INTERFACE photolysis_init
179
180	! INTERFACE photolysis_parin
181	! MODULE PROCEDURE photolysis_parin
182	! END INTERFACE photolysis_parin
183
184	! INTERFACE photolysis_read_restart_data
185	! MODULE PROCEDURE photolysis_read_restart_data
186	! END INTERFACE photolysis_read_restart_data
187
188	! INTERFACE photolysis_last_actions
189	! MODULE PROCEDURE photolysis_last_actions
190	! END INTERFACE photolysis_last_actions
191
192	SAVE
193
194	PRIVATE
195
196	!
197	!-- Public functions / NEEDS SORTING
198	! PUBLIC photolysis_init
199	! photolysis_check_parameters, photolysis_control, &
200	! photolysis_header, photolysis_init, photolysis_parin !, &
201	! photolysis_define_netcdf_grid, photolysis_last_actions, &
202	! photolysis_read_restart_data, photolysis_data_output_mask
203
204	PUBLIC photolysis_control, photolysis_init
205
206	PUBLIC photolysis_scheme
207	!
208
209	CONTAINS
210
211
212	!------------------------------------------------------------------------------!
213	! Description:
214	! ------------
215	!> This subroutine controls the calls of the photolysis schemes
216	!------------------------------------------------------------------------------!
217	SUBROUTINE photolysis_control
218
219
220	IMPLICIT NONE
221
222
223	SELECT CASE ( TRIM( photolysis_scheme ) )
224
225	CASE ( 'constant' )
226	CALL photolysis_constant
227
228	CASE ( 'simple' )
229	CALL photolysis_simple
230
231	! CASE ( 'fastj' )
232	! CALL photolysis_fastj
233
234	CASE DEFAULT
235
236	END SELECT
237
238
239	END SUBROUTINE photolysis_control
240
241	!------------------------------------------------------------------------------!
242	! Description:
243	! ------------
244	!> Initialization of the photolysis model
245	!------------------------------------------------------------------------------!
246	SUBROUTINE photolysis_init !### not yes used. Call should be placed near call of chem_init
247
248	IMPLICIT NONE
249
250	!-- Just in case we need anything
251
252	RETURN
253
254	END SUBROUTINE photolysis_init
255
256
257	!------------------------------------------------------------------------------!
258	! Description:
259	! ------------
260	!> This scheme keeps the prescribed net radiation constant during the run
261	!> Default zenith angle is 45 deg
262	!------------------------------------------------------------------------------!
263	SUBROUTINE photolysis_constant
264
265
266	IMPLICIT NONE
267
268	! INTEGER(iwp) :: i, j, k !< loop indices
269	INTEGER(iwp) :: iphot,iav !< loop indix for photolysis reaction
270	! REAL(wp) :: exn, & !< Exner functions at surface
271	! pt1 !< potential temperature at first grid level
272
273	DO iphot = 1,nphot
274	DO iav = 1,nconst
275	IF ( TRIM( names_c(iav) ) == TRIM( phot_names(iphot) ) ) then
276	!-- Prescribe fixed photolysis frequencies [1/s]
277	! IF(myid == 0 .AND. chem_debug2 ) WRITE(06,*) iphot, iav,phot_names(iphot),names_c(iav)
278
279	phot_frequen(iphot)%freq(nzb+1:nzt,:,:) = &
280	phot0(iav) * cosz
281
282	! IF(myid == 0 .AND. chem_debug2 ) WRITE(06,*) phot_frequen(iphot)%freq(1,5,5)
283	ENDIF
284	ENDDO
285	ENDDO
286
287	END SUBROUTINE photolysis_constant
288
289
290	!------------------------------------------------------------------------------!
291	! Description:
292	! ------------
293	!> This scheme applies a simple parameterisation for clear sky photolysis frequencies
294	!> from the Master Chemical Mechanism, MCM v3.2 (http://mcm.leeds.ac.uk/MCM).
295	!> Reference: Saunders et al., Atmos. Chem. Phys., 3, 161, 2003
296	!------------------------------------------------------------------------------!
297	SUBROUTINE photolysis_simple
298
299	IMPLICIT NONE
300
301	! INTEGER(iwp) :: i, j, k !< loop indices
302	INTEGER(iwp) :: iphot,iav !< loop indix for photolysis reaction
303	! REAL(wp) :: exn, & !< Exner functions at surface
304	! pt1 !< potential temperature at first grid level
305	REAL(wp) :: coszi !< 1./cosine of zenith angle
306
307	DO iphot = 1,nphot
308	phot_frequen(iphot)%freq = 0.0_wp
309	ENDDO
310
311	CALL calc_zenith
312
313	IF ( zenith(0) > 0.0_wp ) THEN
314	coszi = 1. / zenith(0)
315
316	DO iphot = 1,nphot
317	DO iav = 1,nsimple
318	IF ( TRIM( names_s(iav) ) == TRIM( phot_names(iphot) ) ) then
319	! if(myid == 0 .AND. chem_debug2 ) WRITE(06,*) 'simple', iphot, iav,phot_names(iphot),names_s(iav)
320
321	phot_frequen(iphot)%freq(nzb+1:nzt,:,:) = &
322	par_l(iav) * zenith(0)*par_m(iav) EXP( -par_n(iav) * coszi )
323
324	! if(myid == 0 .AND. chem_debug2 ) WRITE(06,*) 'simple', phot_frequen(iphot)%freq(1,5,5)
325	ENDIF
326	ENDDO
327	ENDDO
328	ENDIF
329
330	END SUBROUTINE photolysis_simple
331	#endif
332	END MODULE chem_photolysis_mod

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