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source: palm/trunk/SOURCE/plant_canopy_model.f90 @ 185

Last change on this file since 185 was 153, checked in by steinfeld, 17 years ago
Update for the plant canopy model
Property svn:keywords set to `Id`
File size: 13.3 KB

Rev	Line
[138]	1	MODULE plant_canopy_model_mod
	2
	3	!------------------------------------------------------------------------------!
	4	! Actual revisions:
	5	! -----------------
[153]	6	! Consideration of heat sources within the forest canopy which represent the
	7	! rate of heat input into the air from the forest leaves
	8	!
	9	! Evaluation of sinks and sources for scalar concentration due to canopy
	10	! elements
	11	!
[142]	12	! Bugfix: remove IF statement in plant_canopy_model_ij
[138]	13	!
	14	! Former revisions:
	15	! -----------------
	16	! $Id: plant_canopy_model.f90 153 2008-03-19 09:41:30Z raasch $
	17	!
[139]	18	! 138 2007-11-28 10:03:58Z letzel
	19	! Initial revision
	20	!
[138]	21	! Description:
	22	! ------------
[153]	23	! Evaluation of sinks and sources of momentum, heat and scalar concentration
	24	! due to canopy elements
[138]	25	!------------------------------------------------------------------------------!
	26
	27	PRIVATE
	28	PUBLIC plant_canopy_model
	29
	30	INTERFACE plant_canopy_model
	31	MODULE PROCEDURE plant_canopy_model
	32	MODULE PROCEDURE plant_canopy_model_ij
	33	END INTERFACE plant_canopy_model
	34
	35	CONTAINS
	36
	37
	38	!------------------------------------------------------------------------------!
	39	! Call for all grid points
	40	!------------------------------------------------------------------------------!
	41	SUBROUTINE plant_canopy_model( component )
	42
	43	USE arrays_3d
	44	USE control_parameters
	45	USE indices
	46	USE pegrid
	47
	48	IMPLICIT NONE
	49
	50	INTEGER :: component, i, j, k
	51
	52	!
	53	!-- Compute drag for the three velocity components and the SGS-TKE
	54	SELECT CASE ( component )
	55
	56	!
	57	!-- u-component
	58	CASE ( 1 )
	59	DO i = nxlu, nxr
	60	DO j = nys, nyn
	61	DO k = nzb_u_inner(j,i)+1, pch_index
	62	tend(k,j,i) = tend(k,j,i) - &
	63	cdc(k,j,i) * lad_u(k,j,i) * &
	64	SQRT( u(k,j,i)**2 + &
	65	( ( v(k,j,i-1) + &
	66	v(k,j,i) + &
	67	v(k,j+1,i) + &
[153]	68	v(k,j+1,i-1) ) &
[138]	69	/ 4.0 )**2 + &
	70	( ( w(k-1,j,i-1) + &
	71	w(k-1,j,i) + &
	72	w(k,j,i-1) + &
	73	w(k,j,i) ) &
	74	/ 4.0 )*2 ) &
	75	u(k,j,i)
	76	ENDDO
	77	ENDDO
	78	ENDDO
	79
	80	!
	81	!-- v-component
	82	CASE ( 2 )
	83	DO i = nxl, nxr
	84	DO j = nysv, nyn
	85	DO k = nzb_v_inner(j,i)+1, pch_index
	86	tend(k,j,i) = tend(k,j,i) - &
	87	cdc(k,j,i) * lad_v(k,j,i) * &
	88	SQRT( ( ( u(k,j-1,i) + &
	89	u(k,j-1,i+1) + &
	90	u(k,j,i) + &
	91	u(k,j,i+1) ) &
	92	/ 4.0 )**2 + &
	93	v(k,j,i)**2 + &
	94	( ( w(k-1,j-1,i) + &
	95	w(k-1,j,i) + &
	96	w(k,j-1,i) + &
	97	w(k,j,i) ) &
	98	/ 4.0 )*2 ) &
	99	v(k,j,i)
	100	ENDDO
	101	ENDDO
	102	ENDDO
	103
	104	!
	105	!-- w-component
	106	CASE ( 3 )
	107	DO i = nxl, nxr
	108	DO j = nys, nyn
	109	DO k = nzb_w_inner(j,i)+1, pch_index
	110	tend(k,j,i) = tend(k,j,i) - &
	111	cdc(k,j,i) * lad_w(k,j,i) * &
	112	SQRT( ( ( u(k,j,i) + &
	113	u(k,j,i+1) + &
	114	u(k+1,j,i) + &
	115	u(k+1,j,i+1) ) &
	116	/ 4.0 )**2 + &
	117	( ( v(k,j,i) + &
	118	v(k,j+1,i) + &
	119	v(k+1,j,i) + &
	120	v(k+1,j+1,i) ) &
	121	/ 4.0 )**2 + &
	122	w(k,j,i)*2 ) &
	123	w(k,j,i)
	124	ENDDO
	125	ENDDO
	126	ENDDO
	127
	128	!
[153]	129	!-- potential temperature
[138]	130	CASE ( 4 )
	131	DO i = nxl, nxr
	132	DO j = nys, nyn
	133	DO k = nzb_s_inner(j,i)+1, pch_index
[153]	134	tend(k,j,i) = tend(k,j,i) + &
	135	( canopy_heat_flux(k,j,i) - &
	136	canopy_heat_flux(k-1,j,i) ) / &
	137	dzw(k)
	138	ENDDO
	139	ENDDO
	140	ENDDO
	141
	142	!
	143	!-- scalar concentration
	144	CASE ( 5 )
	145	DO i = nxl, nxr
	146	DO j = nys, nyn
	147	DO k = nzb_s_inner(j,i)+1, pch_index
[138]	148	tend(k,j,i) = tend(k,j,i) - &
[153]	149	sec(k,j,i) * lad_s(k,j,i) * &
	150	SQRT( ( ( u(k,j,i) + &
	151	u(k,j,i+1) ) &
	152	/ 2.0 )**2 + &
	153	( ( v(k,j,i) + &
	154	v(k,j+1,i) ) &
	155	/ 2.0 )**2 + &
	156	( ( w(k-1,j,i) + &
	157	w(k,j,i) ) &
	158	/ 2.0 )*2 ) &
	159	( q(k,j,i) - sls(k,j,i) )
	160	ENDDO
	161	ENDDO
	162	ENDDO
	163
	164	!
	165	!-- sgs-tke
	166	CASE ( 6 )
	167	DO i = nxl, nxr
	168	DO j = nys, nyn
	169	DO k = nzb_s_inner(j,i)+1, pch_index
	170	tend(k,j,i) = tend(k,j,i) - &
[138]	171	2.0 * cdc(k,j,i) * lad_s(k,j,i) * &
	172	SQRT( ( ( u(k,j,i) + &
	173	u(k,j,i+1) ) &
	174	/ 2.0 )**2 + &
	175	( ( v(k,j,i) + &
	176	v(k,j+1,i) ) &
	177	/ 2.0 )**2 + &
	178	( ( w(k,j,i) + &
	179	w(k+1,j,i) ) &
	180	/ 2.0 )*2 ) &
	181	e(k,j,i)
	182	ENDDO
	183	ENDDO
	184	ENDDO
	185
	186	CASE DEFAULT
	187
	188	IF ( myid == 0 ) PRINT*,'+++ pcm: wrong component: ', &
	189	component
	190	CALL local_stop
	191
	192	END SELECT
	193
	194	END SUBROUTINE plant_canopy_model
	195
	196
	197	!------------------------------------------------------------------------------!
	198	! Call for grid point i,j
	199	!------------------------------------------------------------------------------!
	200	SUBROUTINE plant_canopy_model_ij( i, j, component )
	201
	202	USE arrays_3d
	203	USE control_parameters
	204	USE indices
	205	USE pegrid
	206
	207	IMPLICIT NONE
	208
	209	INTEGER :: component, i, j, k
	210
	211	!
[142]	212	!-- Compute drag for the three velocity components
	213	SELECT CASE ( component )
[138]	214
	215	!
[142]	216	!-- u-component
	217	CASE ( 1 )
	218	DO k = nzb_u_inner(j,i)+1, pch_index
	219	tend(k,j,i) = tend(k,j,i) - &
	220	cdc(k,j,i) * lad_u(k,j,i) * &
	221	SQRT( u(k,j,i)**2 + &
	222	( ( v(k,j,i-1) + &
	223	v(k,j,i) + &
	224	v(k,j+1,i) + &
[153]	225	v(k,j+1,i-1) ) &
[142]	226	/ 4.0 )**2 + &
	227	( ( w(k-1,j,i-1) + &
	228	w(k-1,j,i) + &
	229	w(k,j,i-1) + &
	230	w(k,j,i) ) &
	231	/ 4.0 )*2 ) &
	232	u(k,j,i)
	233	ENDDO
[138]	234
	235	!
[142]	236	!-- v-component
	237	CASE ( 2 )
	238	DO k = nzb_v_inner(j,i)+1, pch_index
	239	tend(k,j,i) = tend(k,j,i) - &
	240	cdc(k,j,i) * lad_v(k,j,i) * &
	241	SQRT( ( ( u(k,j-1,i) + &
	242	u(k,j-1,i+1) + &
	243	u(k,j,i) + &
	244	u(k,j,i+1) ) &
	245	/ 4.0 )**2 + &
	246	v(k,j,i)**2 + &
	247	( ( w(k-1,j-1,i) + &
	248	w(k-1,j,i) + &
	249	w(k,j-1,i) + &
	250	w(k,j,i) ) &
	251	/ 4.0 )*2 ) &
	252	v(k,j,i)
	253	ENDDO
[138]	254
	255	!
[142]	256	!-- w-component
	257	CASE ( 3 )
	258	DO k = nzb_w_inner(j,i)+1, pch_index
	259	tend(k,j,i) = tend(k,j,i) - &
	260	cdc(k,j,i) * lad_w(k,j,i) * &
	261	SQRT( ( ( u(k,j,i) + &
	262	u(k,j,i+1) + &
	263	u(k+1,j,i) + &
	264	u(k+1,j,i+1) ) &
	265	/ 4.0 )**2 + &
	266	( ( v(k,j,i) + &
	267	v(k,j+1,i) + &
	268	v(k+1,j,i) + &
	269	v(k+1,j+1,i) ) &
	270	/ 4.0 )**2 + &
	271	w(k,j,i)*2 ) &
	272	w(k,j,i)
[138]	273
[142]	274	ENDDO
[138]	275
	276	!
[153]	277	!-- potential temperature
	278	CASE ( 4 )
	279	DO k = nzb_s_inner(j,i)+1, pch_index
	280	tend(k,j,i) = tend(k,j,i) + &
	281	( canopy_heat_flux(k,j,i) - &
	282	canopy_heat_flux(k-1,j,i) ) / &
	283	dzw(k)
	284	ENDDO
	285
	286
	287	!
	288	!-- scalar concentration
	289	CASE ( 5 )
	290	DO k = nzb_s_inner(j,i)+1, pch_index
	291	tend(k,j,i) = tend(k,j,i) - &
	292	sec(k,j,i) * lad_s(k,j,i) * &
	293	SQRT( ( ( u(k,j,i) + &
	294	u(k,j,i+1) ) &
	295	/ 2.0 )**2 + &
	296	( ( v(k,j,i) + &
	297	v(k,j+1,i) ) &
	298	/ 2.0 )**2 + &
	299	( ( w(k-1,j,i) + &
	300	w(k,j,i) ) &
	301	/ 2.0 )*2 ) &
	302	( q(k,j,i) - sls(k,j,i) )
	303	ENDDO
	304
	305	!
[142]	306	!-- sgs-tke
[153]	307	CASE ( 6 )
[142]	308	DO k = nzb_s_inner(j,i)+1, pch_index
	309	tend(k,j,i) = tend(k,j,i) - &
	310	2.0 * cdc(k,j,i) * lad_s(k,j,i) * &
	311	SQRT( ( ( u(k,j,i) + &
	312	u(k,j,i+1) ) &
	313	/ 2.0 )**2 + &
	314	( ( v(k,j,i) + &
	315	v(k,j+1,i) ) &
	316	/ 2.0 )**2 + &
	317	( ( w(k,j,i) + &
	318	w(k+1,j,i) ) &
	319	/ 2.0 )*2 ) &
	320	e(k,j,i)
	321	ENDDO
[138]	322
[142]	323	CASE DEFAULT
[138]	324
[142]	325	IF ( myid == 0 ) PRINT*,'+++ pcm: wrong component: ', &
	326	component
	327	CALL local_stop
[138]	328
[142]	329	END SELECT
[138]	330
	331	END SUBROUTINE plant_canopy_model_ij
	332
	333	END MODULE plant_canopy_model_mod

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