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source: palm/trunk/SOURCE/plant_canopy_model.f90 @ 235

Last change on this file since 235 was 198, checked in by raasch, 16 years ago
file headers updated for the next release 3.5
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Rev	Line
[138]	1	MODULE plant_canopy_model_mod
	2
	3	!------------------------------------------------------------------------------!
	4	! Actual revisions:
	5	! -----------------
[198]	6	!
[153]	7	!
[142]	8	! Bugfix: remove IF statement in plant_canopy_model_ij
[138]	9	!
	10	! Former revisions:
	11	! -----------------
	12	! $Id: plant_canopy_model.f90 198 2008-09-17 08:55:28Z raasch $
	13	!
[198]	14	! 153 2008-03-19 09:41:30Z steinfeld
	15	! heat sources within the forest canopy are added, which represent the
	16	! rate of heat input into the air from the forest leaves, evaluation of sinks
	17	! and sources for scalar concentration due to canopy elements
	18	!
[139]	19	! 138 2007-11-28 10:03:58Z letzel
	20	! Initial revision
	21	!
[138]	22	! Description:
	23	! ------------
[153]	24	! Evaluation of sinks and sources of momentum, heat and scalar concentration
	25	! due to canopy elements
[138]	26	!------------------------------------------------------------------------------!
	27
	28	PRIVATE
	29	PUBLIC plant_canopy_model
	30
	31	INTERFACE plant_canopy_model
	32	MODULE PROCEDURE plant_canopy_model
	33	MODULE PROCEDURE plant_canopy_model_ij
	34	END INTERFACE plant_canopy_model
	35
	36	CONTAINS
	37
	38
	39	!------------------------------------------------------------------------------!
	40	! Call for all grid points
	41	!------------------------------------------------------------------------------!
	42	SUBROUTINE plant_canopy_model( component )
	43
	44	USE arrays_3d
	45	USE control_parameters
	46	USE indices
	47	USE pegrid
	48
	49	IMPLICIT NONE
	50
	51	INTEGER :: component, i, j, k
	52
	53	!
	54	!-- Compute drag for the three velocity components and the SGS-TKE
	55	SELECT CASE ( component )
	56
	57	!
	58	!-- u-component
	59	CASE ( 1 )
	60	DO i = nxlu, nxr
	61	DO j = nys, nyn
	62	DO k = nzb_u_inner(j,i)+1, pch_index
	63	tend(k,j,i) = tend(k,j,i) - &
	64	cdc(k,j,i) * lad_u(k,j,i) * &
	65	SQRT( u(k,j,i)**2 + &
	66	( ( v(k,j,i-1) + &
	67	v(k,j,i) + &
	68	v(k,j+1,i) + &
[153]	69	v(k,j+1,i-1) ) &
[138]	70	/ 4.0 )**2 + &
	71	( ( w(k-1,j,i-1) + &
	72	w(k-1,j,i) + &
	73	w(k,j,i-1) + &
	74	w(k,j,i) ) &
	75	/ 4.0 )*2 ) &
	76	u(k,j,i)
	77	ENDDO
	78	ENDDO
	79	ENDDO
	80
	81	!
	82	!-- v-component
	83	CASE ( 2 )
	84	DO i = nxl, nxr
	85	DO j = nysv, nyn
	86	DO k = nzb_v_inner(j,i)+1, pch_index
	87	tend(k,j,i) = tend(k,j,i) - &
	88	cdc(k,j,i) * lad_v(k,j,i) * &
	89	SQRT( ( ( u(k,j-1,i) + &
	90	u(k,j-1,i+1) + &
	91	u(k,j,i) + &
	92	u(k,j,i+1) ) &
	93	/ 4.0 )**2 + &
	94	v(k,j,i)**2 + &
	95	( ( w(k-1,j-1,i) + &
	96	w(k-1,j,i) + &
	97	w(k,j-1,i) + &
	98	w(k,j,i) ) &
	99	/ 4.0 )*2 ) &
	100	v(k,j,i)
	101	ENDDO
	102	ENDDO
	103	ENDDO
	104
	105	!
	106	!-- w-component
	107	CASE ( 3 )
	108	DO i = nxl, nxr
	109	DO j = nys, nyn
	110	DO k = nzb_w_inner(j,i)+1, pch_index
	111	tend(k,j,i) = tend(k,j,i) - &
	112	cdc(k,j,i) * lad_w(k,j,i) * &
	113	SQRT( ( ( u(k,j,i) + &
	114	u(k,j,i+1) + &
	115	u(k+1,j,i) + &
	116	u(k+1,j,i+1) ) &
	117	/ 4.0 )**2 + &
	118	( ( v(k,j,i) + &
	119	v(k,j+1,i) + &
	120	v(k+1,j,i) + &
	121	v(k+1,j+1,i) ) &
	122	/ 4.0 )**2 + &
	123	w(k,j,i)*2 ) &
	124	w(k,j,i)
	125	ENDDO
	126	ENDDO
	127	ENDDO
	128
	129	!
[153]	130	!-- potential temperature
[138]	131	CASE ( 4 )
	132	DO i = nxl, nxr
	133	DO j = nys, nyn
	134	DO k = nzb_s_inner(j,i)+1, pch_index
[153]	135	tend(k,j,i) = tend(k,j,i) + &
	136	( canopy_heat_flux(k,j,i) - &
	137	canopy_heat_flux(k-1,j,i) ) / &
	138	dzw(k)
	139	ENDDO
	140	ENDDO
	141	ENDDO
	142
	143	!
	144	!-- scalar concentration
	145	CASE ( 5 )
	146	DO i = nxl, nxr
	147	DO j = nys, nyn
	148	DO k = nzb_s_inner(j,i)+1, pch_index
[138]	149	tend(k,j,i) = tend(k,j,i) - &
[153]	150	sec(k,j,i) * lad_s(k,j,i) * &
	151	SQRT( ( ( u(k,j,i) + &
	152	u(k,j,i+1) ) &
	153	/ 2.0 )**2 + &
	154	( ( v(k,j,i) + &
	155	v(k,j+1,i) ) &
	156	/ 2.0 )**2 + &
	157	( ( w(k-1,j,i) + &
	158	w(k,j,i) ) &
	159	/ 2.0 )*2 ) &
	160	( q(k,j,i) - sls(k,j,i) )
	161	ENDDO
	162	ENDDO
	163	ENDDO
	164
	165	!
	166	!-- sgs-tke
	167	CASE ( 6 )
	168	DO i = nxl, nxr
	169	DO j = nys, nyn
	170	DO k = nzb_s_inner(j,i)+1, pch_index
	171	tend(k,j,i) = tend(k,j,i) - &
[138]	172	2.0 * cdc(k,j,i) * lad_s(k,j,i) * &
	173	SQRT( ( ( u(k,j,i) + &
	174	u(k,j,i+1) ) &
	175	/ 2.0 )**2 + &
	176	( ( v(k,j,i) + &
	177	v(k,j+1,i) ) &
	178	/ 2.0 )**2 + &
	179	( ( w(k,j,i) + &
	180	w(k+1,j,i) ) &
	181	/ 2.0 )*2 ) &
	182	e(k,j,i)
	183	ENDDO
	184	ENDDO
	185	ENDDO
	186
	187	CASE DEFAULT
	188
	189	IF ( myid == 0 ) PRINT*,'+++ pcm: wrong component: ', &
	190	component
	191	CALL local_stop
	192
	193	END SELECT
	194
	195	END SUBROUTINE plant_canopy_model
	196
	197
	198	!------------------------------------------------------------------------------!
	199	! Call for grid point i,j
	200	!------------------------------------------------------------------------------!
	201	SUBROUTINE plant_canopy_model_ij( i, j, component )
	202
	203	USE arrays_3d
	204	USE control_parameters
	205	USE indices
	206	USE pegrid
	207
	208	IMPLICIT NONE
	209
	210	INTEGER :: component, i, j, k
	211
	212	!
[142]	213	!-- Compute drag for the three velocity components
	214	SELECT CASE ( component )
[138]	215
	216	!
[142]	217	!-- u-component
	218	CASE ( 1 )
	219	DO k = nzb_u_inner(j,i)+1, pch_index
	220	tend(k,j,i) = tend(k,j,i) - &
	221	cdc(k,j,i) * lad_u(k,j,i) * &
	222	SQRT( u(k,j,i)**2 + &
	223	( ( v(k,j,i-1) + &
	224	v(k,j,i) + &
	225	v(k,j+1,i) + &
[153]	226	v(k,j+1,i-1) ) &
[142]	227	/ 4.0 )**2 + &
	228	( ( w(k-1,j,i-1) + &
	229	w(k-1,j,i) + &
	230	w(k,j,i-1) + &
	231	w(k,j,i) ) &
	232	/ 4.0 )*2 ) &
	233	u(k,j,i)
	234	ENDDO
[138]	235
	236	!
[142]	237	!-- v-component
	238	CASE ( 2 )
	239	DO k = nzb_v_inner(j,i)+1, pch_index
	240	tend(k,j,i) = tend(k,j,i) - &
	241	cdc(k,j,i) * lad_v(k,j,i) * &
	242	SQRT( ( ( u(k,j-1,i) + &
	243	u(k,j-1,i+1) + &
	244	u(k,j,i) + &
	245	u(k,j,i+1) ) &
	246	/ 4.0 )**2 + &
	247	v(k,j,i)**2 + &
	248	( ( w(k-1,j-1,i) + &
	249	w(k-1,j,i) + &
	250	w(k,j-1,i) + &
	251	w(k,j,i) ) &
	252	/ 4.0 )*2 ) &
	253	v(k,j,i)
	254	ENDDO
[138]	255
	256	!
[142]	257	!-- w-component
	258	CASE ( 3 )
	259	DO k = nzb_w_inner(j,i)+1, pch_index
	260	tend(k,j,i) = tend(k,j,i) - &
	261	cdc(k,j,i) * lad_w(k,j,i) * &
	262	SQRT( ( ( u(k,j,i) + &
	263	u(k,j,i+1) + &
	264	u(k+1,j,i) + &
	265	u(k+1,j,i+1) ) &
	266	/ 4.0 )**2 + &
	267	( ( v(k,j,i) + &
	268	v(k,j+1,i) + &
	269	v(k+1,j,i) + &
	270	v(k+1,j+1,i) ) &
	271	/ 4.0 )**2 + &
	272	w(k,j,i)*2 ) &
	273	w(k,j,i)
[138]	274
[142]	275	ENDDO
[138]	276
	277	!
[153]	278	!-- potential temperature
	279	CASE ( 4 )
	280	DO k = nzb_s_inner(j,i)+1, pch_index
	281	tend(k,j,i) = tend(k,j,i) + &
	282	( canopy_heat_flux(k,j,i) - &
	283	canopy_heat_flux(k-1,j,i) ) / &
	284	dzw(k)
	285	ENDDO
	286
	287
	288	!
	289	!-- scalar concentration
	290	CASE ( 5 )
	291	DO k = nzb_s_inner(j,i)+1, pch_index
	292	tend(k,j,i) = tend(k,j,i) - &
	293	sec(k,j,i) * lad_s(k,j,i) * &
	294	SQRT( ( ( u(k,j,i) + &
	295	u(k,j,i+1) ) &
	296	/ 2.0 )**2 + &
	297	( ( v(k,j,i) + &
	298	v(k,j+1,i) ) &
	299	/ 2.0 )**2 + &
	300	( ( w(k-1,j,i) + &
	301	w(k,j,i) ) &
	302	/ 2.0 )*2 ) &
	303	( q(k,j,i) - sls(k,j,i) )
	304	ENDDO
	305
	306	!
[142]	307	!-- sgs-tke
[153]	308	CASE ( 6 )
[142]	309	DO k = nzb_s_inner(j,i)+1, pch_index
	310	tend(k,j,i) = tend(k,j,i) - &
	311	2.0 * cdc(k,j,i) * lad_s(k,j,i) * &
	312	SQRT( ( ( u(k,j,i) + &
	313	u(k,j,i+1) ) &
	314	/ 2.0 )**2 + &
	315	( ( v(k,j,i) + &
	316	v(k,j+1,i) ) &
	317	/ 2.0 )**2 + &
	318	( ( w(k,j,i) + &
	319	w(k+1,j,i) ) &
	320	/ 2.0 )*2 ) &
	321	e(k,j,i)
	322	ENDDO
[138]	323
[142]	324	CASE DEFAULT
[138]	325
[142]	326	IF ( myid == 0 ) PRINT*,'+++ pcm: wrong component: ', &
	327	component
	328	CALL local_stop
[138]	329
[142]	330	END SELECT
[138]	331
	332	END SUBROUTINE plant_canopy_model_ij
	333
	334	END MODULE plant_canopy_model_mod

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