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lwxd.F @ 2616

Last change on this file since 2616 was 1917, checked in by emillour, 7 years ago
Mars GCM: Code cleanup: get rid of routine "zerophys". EM
File size: 9.2 KB

Line
1	subroutine lwxd (ig0,kdlon,kflev,emis
2	. ,aer_t,co2_u,co2_up)
3
4	c----------------------------------------------------------------------
5	c LWXD computes transmission function and exchange coefficiants
6	c for distant layers
7	c (co2 / aerosols)
8	c (bands 1 and 2 of co2)
9	c----------------------------------------------------------------------
10	c
11	c \|---\|---\|---\|---\|---\|---\|---\|---\|
12	c kflev+1 \| \| \| \| \| \| \| \| 0 \| (space)
13	c \|---\|---\|---\|---\|---\|---\|---\|---\|
14	c kflev \| \|*\|\|\|*\| \| 0 \| \|
15	c \|---\|---\|---\|---\|---\|---\|---\|---\|
16	c ... \| \|*\|\|**\| \| 0 \| \| \|
17	c \|---\|---\|---\|---\|---\|---\|---\|---\|
18	c 4 \| \|*\|\| \| 0 \| \|**\| \|
19	c \|---\|---\|---\|---\|---\|---\|---\|---\|
20	c 3 \| \|*\| \| 0 \| \|\|**\| \|
21	c \|---\|---\|---\|---\|---\|---\|---\|---\|
22	c 2 \| \| \| 0 \| \| \|*\|*\| \|
23	c \|---\|---\|---\|---\|---\|---\|---\|---\|
24	c 1 \| \| 0 \| \| \|*\|\|**\| \|
25	c \|---\|---\|---\|---\|---\|---\|---\|---\|
26	c 0 \| 0 \| \| \|*\|\|\|*\| \| (ground)
27	c \|---\|---\|---\|---\|---\|---\|---\|---\|
28	c 0 1 2 3 4 ... k \|k+1
29	c (ground) (space)
30	c
31	c (*) xi computed in this subroutine
32	c----------------------------------------------------------------------
33
34	use dimradmars_mod, only: ndlon, nuco2, nflev, ndlo2
35	use yomlw_h, only: nlaylte, xi, xi_emis
36	implicit none
37
38	include "callkeys.h"
39
40	c----------------------------------------------------------------------
41	c 0.1 arguments
42	c ---------
43	c inputs:
44	c -------
45	integer,intent(in) :: ig0
46	integer,intent(in) :: kdlon ! part of ngrid
47	integer,intent(in) :: kflev ! part of nalyer
48
49	real,intent(in) :: emis (ndlo2) ! surface emissivity
50	real,intent(in) :: aer_t (ndlo2,nuco2,kflev+1) ! transmission (aer)
51	real,intent(in) :: co2_u (ndlo2,nuco2,kflev+1) ! absorber amounts (co2)
52	real,intent(in) :: co2_up (ndlo2,nuco2,kflev+1) ! idem scaled by the pressure (co2)
53
54	c----------------------------------------------------------------------
55	c 0.2 local arrays
56	c ------------
57
58	integer ja,jl,jk,jkk
59	real zu (ndlon,nuco2)
60	real zup (ndlon,nuco2)
61	real zt_co2 (ndlon,nuco2)
62	real zt_aer (ndlon,nuco2)
63
64	real ksi (ndlon,nuco2,0:nflev+1,0:nflev+1)
65	real ksi_emis (ndlon,nuco2,0:nflev+1,0:nflev+1)
66	real trans (ndlon,nuco2,0:nflev+1,0:nflev+1)
67	real trans_emis (ndlon,nuco2,0:nflev+1,0:nflev+1)
68
69	c----------------------------------------------------------------------
70	ksi_emis(:,:,:,:)=0
71	c----------------------------------------------------------------------
72	c 1.0 Transmission functions
73	c ----------------------
74
75	c----------------------------------------------------------------------
76	c 1.1 Direct transmission
77	c -------------------
78
79	do jk = 1 , nlaylte+1
80	do jkk = jk , nlaylte+1
81
82	do ja = 1 , nuco2
83	do jl = 1 , kdlon
84	c co2
85	c ---
86	zu(jl,ja) = co2_u(jl,ja,jk) - co2_u(jl,ja,jkk)
87	zup(jl,ja) = co2_up(jl,ja,jk) - co2_up(jl,ja,jkk)
88	c aer
89	c ---
90	zt_aer(jl,ja)= aer_t(jl,ja,jk)
91	. /aer_t(jl,ja,jkk)
92
93	enddo
94	enddo
95
96	call lwtt(kdlon,zu,zup,nuco2,zt_co2)
97	c co2 and aer
98	c -----------
99	do ja = 1 , nuco2
100	do jl = 1 , kdlon
101	trans(jl,ja,jk,jkk) = zt_co2(jl,ja) * zt_aer(jl,ja)
102	enddo
103	enddo
104	c trans reciprocity
105	c -----------------
106	do ja = 1 , nuco2
107	do jl = 1 , kdlon
108	trans(jl,ja,jkk,jk) = trans(jl,ja,jk,jkk)
109	c if (trans(jl,ja,jk,jkk) .LT. 0 ) then
110	c print*,'trans bande',ja,jk,jkk,trans(jl,ja,jk,jkk)
111	c endif
112	c if (trans(jl,ja,jk,jkk) .GT. 1) then
113	c print*,'trans bande',ja,jk,jkk,trans(jl,ja,jk,jkk)
114	c trans(jl,ja,jk,jkk)=1
115	c print*,'trans bande',ja,jk,jkk,trans(jl,ja,jk,jkk)
116	c endif
117
118	enddo
119	enddo
120
121	enddo
122	enddo
123
124	c----------------------------------------------------------------------
125	c 1.2 Transmission with reflexion
126	c ---------------------------
127
128	do jk = 1 , nlaylte+1
129	do jkk = jk , nlaylte+1
130
131	if (callemis) then
132	do ja = 1 , nuco2
133	do jl = 1 , kdlon
134	c co2
135	c ---
136	zu(jl,ja) = 2 * co2_u(jl,ja,1) - co2_u(jl,ja,jk)
137	. - co2_u(jl,ja,jkk)
138	zup(jl,ja) = 2 * co2_up(jl,ja,1) - co2_up(jl,ja,jk)
139	. - co2_up(jl,ja,jkk)
140	c aer
141	c ---
142	zt_aer(jl,ja) = aer_t(jl,ja,1)
143	. * aer_t(jl,ja,1)
144	. / aer_t(jl,ja,jk)
145	. / aer_t(jl,ja,jkk)
146	enddo
147	enddo
148
149	call lwtt(kdlon,zu,zup,nuco2,zt_co2)
150	c co2 and aer
151	c -----------
152	do ja = 1 , nuco2
153	do jl = 1 , kdlon
154	trans_emis(jl,ja,jk,jkk) = zt_co2(jl,ja)
155	. * zt_aer(jl,ja)
156	enddo
157	enddo
158
159	else
160
161	do ja = 1 , nuco2
162	do jl = 1 , kdlon
163	trans_emis(jl,ja,jk,jkk) = 1.
164	enddo
165	enddo
166
167	endif
168	c trans reciprocity
169	c -----------------
170	do ja = 1 , nuco2
171	do jl = 1 , kdlon
172	trans_emis(jl,ja,jkk,jk) = trans_emis(jl,ja,jk,jkk)
173	c if (trans_emis(jl,ja,jk,jkk) .LT. 0
174	c . .OR. trans_emis(jl,ja,jk,jkk) .GT. 1) then
175	c print*,'trans_emis bande',ja,jk,jkk,trans_emis(jl,ja,jk,jkk)
176	c endif
177	enddo
178	enddo
179
180	enddo
181	enddo
182
183	c----------------------------------------------------------------------
184	c 2.0 Exchange Coefficiants
185	c ---------------------
186
187	do jk = 1 , nlaylte-2
188	do jkk = jk+2 , nlaylte
189	do ja = 1 , nuco2
190	do jl = 1 , kdlon
191
192	ksi(jl,ja,jk,jkk) =
193	. trans(jl,ja,jk+1,jkk) - trans(jl,ja,jk,jkk)
194	. - trans(jl,ja,jk+1,jkk+1) + trans(jl,ja,jk,jkk+1)
195
196	ksi_emis(jl,ja,jk,jkk) =
197	. trans_emis(jl,ja,jk,jkk) - trans_emis(jl,ja,jk+1,jkk)
198	. - trans_emis(jl,ja,jk,jkk+1) + trans_emis(jl,ja,jk+1,jkk+1)
199
200	c if (ksi(jl,ja,jk,jkk) .LT. 0 ) then
201	c print*,'ksi bande',ja,jk,jkk,ksi(jl,ja,jk,jkk)
202	c ksi(jl,ja,jk,jkk)=0
203	c print*,'ksi bande',ja,jk,jkk,ksi(jl,ja,jk,jkk)
204	c endif
205	c if (ksi(jl,ja,jk,jkk) .GT. 1) then
206	c print*,'ksi bande',ja,jk,jkk,ksi(jl,ja,jk,jkk)
207	c ksi(jl,ja,jk,jkk)=1
208	c print*,'ksi bande',ja,jk,jkk,ksi(jl,ja,jk,jkk)
209	c endif
210
211	c if (ksi_emis(jl,ja,jk,jkk) .LT. 0
212	c . .OR. ksi_emis(jl,ja,jk,jkk) .GT. 1) then
213	c print*,'ksi_emis bande',ja,jk,jkk,ksi_emis(jl,ja,jk,jkk)
214	c endif
215
216	xi(ig0+jl,ja,jk,jkk) = ksi(jl,ja,jk,jkk)
217	. + ksi_emis(jl,ja,jk,jkk) * (1 - emis(jl))
218
219	c ksi reciprocity
220	c ---------------
221	ksi(jl,ja,jkk,jk) = ksi(jl,ja,jk,jkk)
222	ksi_emis(jl,ja,jkk,jk) = ksi_emis(jl,ja,jk,jkk)
223	xi(ig0+jl,ja,jkk,jk) = xi(ig0+jl,ja,jk,jkk)
224
225	enddo
226	enddo
227	enddo
228	enddo
229
230	c----------------------------------------------------------------------
231	c 2.1 Save xi_emis for neighbours (lwxn.F)
232	c -----------------------------------
233
234	do jk = 1 , nlaylte-1
235	do ja = 1 , nuco2
236	do jl = 1 , kdlon
237
238	c ksi_emis(jl,ja,jk,jk+1) =
239	c . trans_emis(jl,ja,jk,jk+1) - trans_emis(jl,ja,jk+1,jk+1)
240	c . - trans_emis(jl,ja,jk,jk+2) + trans_emis(jl,ja,jk+1,jk+2)
241
242	xi_emis(ig0+jl,ja,jk) =
243	. ksi_emis(jl,ja,jk,jk+1) * (1-emis(jl))
244
245	enddo
246	enddo
247	enddo
248
249	c----------------------------------------------------------------------
250	end

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