/[MITgcm]/MITgcm/pkg/fizhi/update_earth_exports.F
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Contents of /MITgcm/pkg/fizhi/update_earth_exports.F

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Revision 1.29 - (show annotations) (download)
Tue Mar 16 00:19:33 2010 UTC (14 years, 1 month ago) by jmc
Branch: MAIN
CVS Tags: checkpoint63h, checkpoint63i, checkpoint63j, checkpoint63k, checkpoint63d, checkpoint63e, checkpoint63f, checkpoint63g, checkpoint63a, checkpoint63b, checkpoint63c, checkpoint63, checkpoint62g, checkpoint62f, checkpoint62e, checkpoint62d, checkpoint62k, checkpoint62j, checkpoint62i, checkpoint62h, checkpoint62o, checkpoint62n, checkpoint62m, checkpoint62l, checkpoint62s, checkpoint62r, checkpoint62q, checkpoint62p, checkpoint62w, checkpoint62v, checkpoint62u, checkpoint62t, checkpoint62z, checkpoint62y, checkpoint62x
Changes since 1.28: +2 -2 lines
avoid unbalanced quote (single or double) in commented line

1 C $Header: /u/gcmpack/MITgcm/pkg/fizhi/update_earth_exports.F,v 1.28 2009/04/01 19:34:08 jmc Exp $
2 C $Name: $
3
4 #include "FIZHI_OPTIONS.h"
5 subroutine update_earth_exports (myTime, myIter, myThid)
6 c----------------------------------------------------------------------
7 c Subroutine update_earth_exports - 'Wrapper' routine to update
8 c the fields related to the earth surface that are needed
9 c by fizhi.
10 c
11 c Call: getlgr (Set the leaf area index and surface greenness,
12 c based on veg type and month)
13 c getalb (Set the 4 albedos based on veg type, snow and time)
14 c getemiss (Set the surface emissivity based on the veg type
15 c and the snow depth)
16 c-----------------------------------------------------------------------
17 implicit none
18 #include "SIZE.h"
19 #include "GRID.h"
20 #include "fizhi_land_SIZE.h"
21 #include "fizhi_SIZE.h"
22 #include "fizhi_coms.h"
23 #include "chronos.h"
24 #include "gridalt_mapping.h"
25 #include "fizhi_land_coms.h"
26 #include "fizhi_earth_coms.h"
27 #include "fizhi_ocean_coms.h"
28 #include "EEPARAMS.h"
29
30 integer myIter, myThid
31 _RL myTime
32
33 logical alarm
34 external alarm
35 _RL lats(sNx,sNy), lons(sNx,sNy), cosz(sNx,sNy)
36 _RL fraci(sNx,sNy), fracl(sNx,sNy)
37 _RL ficetile(nchp)
38 _RL radius
39 _RL tmpij(sNx,sNy)
40 _RL tmpchp(nchp)
41 integer i, j, n, bi, bj
42 integer im1, im2, jm1, jm2, idim1, idim2, jdim1, jdim2
43 integer sec, day, month
44 integer nmonf,ndayf,nsecf
45 nsecf(n) = n/10000*3600 + mod(n,10000)/100* 60 + mod(n,100)
46 nmonf(n) = mod(n,10000)/100
47 ndayf(n) = mod(n,100)
48
49 idim1 = 1-OLx
50 idim2 = sNx+OLx
51 jdim1 = 1-OLy
52 jdim2 = sNy+OLy
53 im1 = 1
54 im2 = sNx
55 jm1 = 1
56 jm2 = sNy
57 month = nmonf(nymd)
58 day = ndayf(nymd)
59 sec = nsecf(nhms)
60
61 do bj = myByLo(myThid), myByHi(myThid)
62 do bi = myBxLo(myThid), myBxHi(myThid)
63 do j = jm1,jm2
64 do i = im1,im2
65 lons(i,j) = xC(i,j,bi,bj)
66 lats(i,j) = yC(i,j,bi,bj)
67 enddo
68 enddo
69
70 call get_landfrac(im2,jm2,nSx,nSy,bi,bj,maxtyp,surftype,tilefrac,
71 & fracl)
72
73 do j = jm1,jm2
74 do i = im1,im2
75 if(sice(i,j,bi,bj).gt.0.) then
76 fraci(i,j) = 1.
77 else
78 fraci(i,j) = 0.
79 endif
80 enddo
81 enddo
82
83 C***********************************************************************
84 C* Get Leaf-Area-Index and Greenness Index *
85 C***********************************************************************
86
87 if( alarm('turb') .or. alarm('radsw') ) then
88 call getlgr (sec,month,day,chlt,ityp,nchpland(bi,bj),
89 & nchp,nSx,nSy,bi,bj,alai,agrn )
90 endif
91
92 C **********************************************************************
93 C Compute Surface Albedo
94 C **********************************************************************
95
96 if( alarm('radsw') ) then
97 #ifdef FIZHI_USE_FIXED_DAY
98 call astro(20040321,nhms,lats,lons,im2*jm2,cosz,radius)
99 #else
100 call astro(nymd,nhms,lats,lons,im2*jm2,cosz,radius)
101 #endif
102 call getalb(sec,month,day,cosz,snodep,fraci,fracl,im2,jm2,nchp,
103 & nchptot(bi,bj),nchpland(bi,bj),nSx,nSy,bi,bj,igrd,ityp,
104 & chfr,chlt,alai,agrn,
105 & albvisdr,albvisdf,albnirdr,albnirdf )
106 endif
107
108 C **********************************************************************
109 C Compute Surface Emissivity
110 C **********************************************************************
111
112 if( alarm('radlw') ) then
113 call grd2msc(fraci,im2,jm2,igrd,ficetile,nchp,nchptot(bi,bj))
114 call getemiss(fracl,im2,jm2,nchp,nchptot(bi,bj),nSx,nSy,bi,bj,
115 & igrd,ityp,chfr,snodep,ficetile,emiss)
116 endif
117
118 C*********************************************************************
119 C Ground Temperature Over Ocean is from SST array,
120 C Over land is from tcanopy
121 C*********************************************************************
122
123 do j = jm1,jm2
124 do i = im1,im2
125 tmpij(i,j) = 0.
126 enddo
127 enddo
128 do i = 1,nchptot(bi,bj)
129 tmpchp(i) = tcanopy(i,bi,bj)
130 enddo
131 call msc2grd(igrd(1,bi,bj),chfr(1,bi,bj),tmpchp,
132 & nchp,nchptot(bi,bj),fracl,tmpij,im2,jm2)
133 do j = jm1,jm2
134 do i = im1,im2
135 tgz(i,j,bi,bj) = tmpij(i,j)
136 if(fracl(i,j).lt.0.3.and.sice(i,j,bi,bj).eq.0.0)
137 & tgz(i,j,bi,bj) = sst(i,j,bi,bj)
138 enddo
139 enddo
140
141 enddo
142 enddo
143
144 return
145 end
146
147 SUBROUTINE SIBALB ( AVISDR, ANIRDR, AVISDF, ANIRDF,
148 & VLAI, VGRN, ZTH, SNW, ITYP, IRUN )
149
150 C*********************************************************************
151 C The input list is as follows:
152 C VLAI: the leaf area index.
153 C VGRN: the greenness index.
154 C ZTH: The cosine of the solar zenith angle.
155 C SNW: Snow cover in meters water equivalent.
156 C ITYP: The surface type (grass, bare soil, etc.)
157 C IRUN: Number of tiles (same as used for SUBROUTINE TILE).
158 C
159 C The output list is as follows:
160 C
161 C AVISDR: visible, direct albedo.
162 C ANIRDR: near infra-red, direct albedo.
163 C AVISDF: visible, diffuse albedo.
164 C ANIRDF: near infra-red, diffuse albedo.
165 C*******************************************************************
166
167 IMPLICIT NONE
168
169 INTEGER IRUN
170 _RL AVISDR (IRUN), ANIRDR (IRUN), AVISDF (IRUN), ANIRDF (IRUN)
171 _RL VLAI(IRUN),VGRN (IRUN), SNW(IRUN)
172 _RL ZTH(IRUN)
173 INTEGER ITYP (IRUN)
174
175 _RL ALVDRS, ALIDRS
176 _RL ALVDRDL, ALIDRDL
177 _RL ALVDRDD, ALIDRDD
178 _RL ALVDRI, ALIDRI
179 _RL minval
180 external minval
181
182 C Albedo of soil for visible direct solar radiation.
183 PARAMETER ( ALVDRS = 0.100 )
184 C Albedo of soil for infra-red direct solar radiation.
185 PARAMETER ( ALIDRS = 0.200 )
186 C Albedo of light desert for visible direct solar radiation.
187 PARAMETER ( ALVDRDL = 0.300 )
188 C Albedo of light desert for infra-red direct solar radiation.
189 PARAMETER ( ALIDRDL = 0.350 )
190 C Albedo of dark desert for visible direct solar radiation.
191 PARAMETER ( ALVDRDD = 0.250 )
192 C Albedo of dark desert for infra-red direct solar radiation.
193 PARAMETER ( ALIDRDD = 0.300 )
194 C Albedo of ice for visible direct solar radiation.
195 PARAMETER ( ALVDRI = 0.800 )
196 C Albedo of ice for infra-red direct solar radiation.
197 PARAMETER ( ALIDRI = 0.800 )
198
199 * --------------------------------------------------------------------------------------------
200
201 INTEGER NTYPS
202 INTEGER NLAI
203 _RL ZERO, ONE
204 _RL EPSLN, BLAI, DLAI
205 _RL ALATRM
206 PARAMETER (NLAI = 14 )
207 PARAMETER (EPSLN = 1.E-6)
208 PARAMETER (BLAI = 0.5)
209 PARAMETER (DLAI = 0.5)
210 PARAMETER (ZERO=0., ONE=1.0)
211 PARAMETER (ALATRM = BLAI + (NLAI - 1) * DLAI - EPSLN)
212 PARAMETER (NTYPS=10)
213
214
215 C ITYP: Vegetation type as follows:
216 C 1: BROADLEAF EVERGREEN TREES
217 C 2: BROADLEAF DECIDUOUS TREES
218 C 3: NEEDLELEAF TREES
219 C 4: GROUND COVER
220 C 5: BROADLEAF SHRUBS
221 C 6: DWARF TREES (TUNDRA)
222 C 7: BARE SOIL
223 C 8: LIGHT DESERT
224 C 9: GLACIER
225 C 10: DARK DESERT
226 C
227
228 INTEGER I, LAI
229 _RL FAC,GAMMA,BETA,ALPHA,DX,DY,ALA,GRN (2),SNWALB(4,NTYPS)
230 _RL COEFF
231
232 _RL ALVDR (NLAI, 2, NTYPS)
233 _RL BTVDR (NLAI, 2, NTYPS)
234 _RL GMVDR (NLAI, 2, NTYPS)
235 _RL ALIDR (NLAI, 2, NTYPS)
236 _RL BTIDR (NLAI, 2, NTYPS)
237 _RL GMIDR (NLAI, 2, NTYPS)
238
239 C (Data statements for ALVDR described in full; data statements for
240 C other constants follow same framework.)
241
242 C BROADLEAF EVERGREEN (ITYP=4); GREEN=0.33; LAI: .5-7
243 DATA (ALVDR (I, 1, 1), I = 1, 14)
244 & /0.0808, 0.0796, 0.0792, 0.0790, 10*0.0789/
245
246 C BROADLEAF EVERGREEN (ITYP=4); GREEN=0.67; LAI: .5-7
247 DATA (ALVDR (I, 2, 1), I = 1, 14)
248 & /0.0788, 0.0775, 0.0771, 0.0769, 10*0.0768/
249
250 C BROADLEAF DECIDUOUS (ITYP=1); GREEN=0.33; LAI: .5-7
251 DATA (ALVDR (I, 1, 2), I = 1, 14)
252 & /0.0803, 0.0790, 0.0785, 0.0784, 3*0.0783, 7*0.0782/
253
254 C BROADLEAF DECIDUOUS (ITYP=1); GREEN=0.67; LAI: .5-7
255 DATA (ALVDR (I, 2, 2), I = 1, 14)
256 & /0.0782, 0.0770, 0.0765, 0.0763, 10*0.0762/
257
258 C NEEDLELEAF (ITYP=3); GREEN=0.33; LAI=.5-7
259 DATA (ALVDR (I, 1, 3), I = 1, 14)
260 & /0.0758, 0.0746, 0.0742, 0.0740, 10*0.0739/
261
262 C NEEDLELEAF (ITYP=3); GREEN=0.67; LAI=.5-7
263 DATA (ALVDR (I, 2, 3), I = 1, 14)
264 & /0.0683, 0.0672, 0.0667, 2*0.0665, 9*0.0664/
265
266 C GROUNDCOVER (ITYP=2); GREEN=0.33; LAI=.5-7
267 DATA (ALVDR (I, 1, 4), I = 1, 14)
268 & /0.2436, 0.2470, 0.2486, 0.2494, 0.2498, 0.2500, 2*0.2501,
269 & 6*0.2502
270 & /
271 C GROUNDCOVER (ITYP=2); GREEN=0.67; LAI=.5-7
272 DATA (ALVDR (I, 2, 4), I = 1, 14) /14*0.1637/
273
274 C BROADLEAF SHRUBS (ITYP=5); GREEN=0.33,LAI=.5-7
275 DATA (ALVDR (I, 1, 5), I = 1, 14)
276 & /0.0807, 0.0798, 0.0794, 0.0792, 0.0792, 9*0.0791/
277
278 C BROADLEAF SHRUBS (ITYP=5); GREEN=0.67,LAI=.5-7
279 DATA (ALVDR (I, 2, 5), I = 1, 14)
280 & /0.0787, 0.0777, 0.0772, 0.0771, 10*0.0770/
281
282 C DWARF TREES, OR TUNDRA (ITYP=6); GREEN=0.33,LAI=.5-7
283 DATA (ALVDR (I, 1, 6), I = 1, 14)
284 & /0.0802, 0.0791, 0.0787, 0.0786, 10*0.0785/
285
286 C DWARF TREES, OR TUNDRA (ITYP=6); GREEN=0.67,LAI=.5-7
287 DATA (ALVDR (I, 2, 6), I = 1, 14)
288 & /0.0781, 0.0771, 0.0767, 0.0765, 0.0765, 9*0.0764/
289
290
291 C BARE SOIL
292 DATA (ALVDR (I, 1, 7), I = 1, 14) /14*ALVDRS/
293 DATA (ALVDR (I, 2, 7), I = 1, 14) /14*ALVDRS/
294
295 C LIGHT DESERT (SAHARA, EG)
296 DATA (ALVDR (I, 1, 8), I = 1, 14) /14*ALVDRDL/
297 DATA (ALVDR (I, 2, 8), I = 1, 14) /14*ALVDRDL/
298
299 C ICE
300 DATA (ALVDR (I, 1, 9), I = 1, 14) /14*ALVDRI/
301 DATA (ALVDR (I, 2, 9), I = 1, 14) /14*ALVDRI/
302
303 C DARK DESERT (AUSTRALIA, EG)
304 DATA (ALVDR (I, 1, 10), I = 1, 14) /14*ALVDRDD/
305 DATA (ALVDR (I, 2, 10), I = 1, 14) /14*ALVDRDD/
306 C****
307 C**** -------------------------------------------------
308 DATA (BTVDR (I, 1, 1), I = 1, 14)
309 & /0.0153, 0.0372, 0.0506, 0.0587, 0.0630, 0.0652, 0.0663,
310 & 0.0668, 0.0671, 0.0672, 4*0.0673
311 & /
312 DATA (BTVDR (I, 2, 1), I = 1, 14)
313 & /0.0135, 0.0354, 0.0487, 0.0568, 0.0611, 0.0633, 0.0644,
314 & 0.0650, 0.0652, 0.0654, 0.0654, 3*0.0655
315 & /
316 DATA (BTVDR (I, 1, 2), I = 1, 14)
317 & /0.0148, 0.0357, 0.0462, 0.0524, 0.0554, 0.0569, 0.0576,
318 & 0.0579, 0.0580, 0.0581, 0.0581, 3*0.0582
319 & /
320 DATA (BTVDR (I, 2, 2), I = 1, 14)
321 & /0.0131, 0.0342, 0.0446, 0.0508, 0.0539, 0.0554, 0.0560,
322 & 0.0564, 0.0565, 5*0.0566
323 & /
324 DATA (BTVDR (I, 1, 3), I = 1, 14)
325 & /0.0108, 0.0334, 0.0478, 0.0571, 0.0624, 0.0652, 0.0666,
326 & 0.0673, 0.0677, 0.0679, 4*0.0680
327 & /
328 DATA (BTVDR (I, 2, 3), I = 1, 14)
329 & /0.0034, 0.0272, 0.0408, 0.0501, 0.0554, 0.0582, 0.0597,
330 & 0.0604, 0.0608, 0.0610, 4*0.0611
331 & /
332 DATA (BTVDR (I, 1, 4), I = 1, 14)
333 & /0.2050, 0.2524, 0.2799, 0.2947, 0.3022, 0.3059, 0.3076,
334 & 0.3085, 0.3088, 0.3090, 4*0.3091
335 & /
336 DATA (BTVDR (I, 2, 4), I = 1, 14)
337 & /0.1084, 0.1404, 0.1617, 0.1754, 0.1837, 0.1887, 0.1915,
338 & 0.1931, 0.1940, 0.1946, 0.1948, 0.1950, 2*0.1951
339 & /
340 DATA (BTVDR (I, 1, 5), I = 1, 14)
341 & /0.0203, 0.0406, 0.0548, 0.0632, 0.0679, 0.0703, 0.0716,
342 & 0.0722, 0.0726, 0.0727, 0.0728, 0.0728, 0.0728, 0.0729
343 & /
344
345 DATA (BTVDR (I, 2, 5), I = 1, 14)
346 & /0.0184, 0.0385, 0.0526, 0.0611, 0.0658, 0.0683, 0.0696,
347 & 0.0702, 0.0705, 0.0707, 4*0.0708
348 & /
349
350 DATA (BTVDR (I, 1, 6), I = 1, 14)
351 & /0.0199, 0.0388, 0.0494, 0.0554, 0.0584, 0.0599, 0.0606,
352 & 0.0609, 0.0611, 5*0.0612
353 & /
354
355 DATA (BTVDR (I, 2, 6), I = 1, 14)
356 & /0.0181, 0.0371, 0.0476, 0.0537, 0.0568, 0.0583, 0.0590,
357 & 0.0593, 0.0595, 0.0595, 4*0.0596
358 & /
359
360 DATA (BTVDR (I, 1, 7), I = 1, 14) /14*0./
361 DATA (BTVDR (I, 2, 7), I = 1, 14) /14*0./
362
363 DATA (BTVDR (I, 1, 8), I = 1, 14) /14*0./
364 DATA (BTVDR (I, 2, 8), I = 1, 14) /14*0./
365
366 DATA (BTVDR (I, 1, 9), I = 1, 14) /14*0./
367 DATA (BTVDR (I, 2, 9), I = 1, 14) /14*0./
368
369 DATA (BTVDR (I, 1, 10), I = 1, 14) /14*0./
370 DATA (BTVDR (I, 2, 10), I = 1, 14) /14*0./
371
372 C****
373 C**** -----------------------------------------------------------
374 DATA (GMVDR (I, 1, 1), I = 1, 14)
375 & /0.0814, 0.1361, 0.2078, 0.2650, 0.2986, 0.3169, 0.3265,
376 & 0.3313, 0.3337, 0.3348, 0.3354, 0.3357, 2*0.3358
377 & /
378 DATA (GMVDR (I, 2, 1), I = 1, 14)
379 & /0.0760, 0.1336, 0.2034, 0.2622, 0.2969, 0.3159, 0.3259,
380 & 0.3309, 0.3333, 0.3346, 0.3352, 0.3354, 2*0.3356
381 & /
382 DATA (GMVDR (I, 1, 2), I = 1, 14)
383 & /0.0834, 0.1252, 0.1558, 0.1927, 0.2131, 0.2237, 0.2290,
384 & 0.2315, 0.2327, 0.2332, 0.2335, 2*0.2336, 0.2337
385 & /
386 DATA (GMVDR (I, 2, 2), I = 1, 14)
387 & /0.0789, 0.1235, 0.1531, 0.1912, 0.2122, 0.2232, 0.2286,
388 & 0.2312, 0.2324, 0.2330, 0.2333, 0.2334, 2*0.2335
389 & /
390 DATA (GMVDR (I, 1, 3), I = 1, 14)
391 & /0.0647, 0.1342, 0.2215, 0.2968, 0.3432, 0.3696, 0.3838,
392 & 0.3912, 0.3950, 0.3968, 0.3978, 0.3982, 0.3984, 0.3985
393 & /
394 DATA (GMVDR (I, 2, 3), I = 1, 14)
395 & /0.0258, 0.1227, 0.1999, 0.2825, 0.3339, 0.3634, 0.3794,
396 & 0.3877, 0.3919, 0.3940, 0.3950, 0.3956, 0.3958, 0.3959
397 & /
398 DATA (GMVDR (I, 1, 4), I = 1, 14)
399 & /0.3371, 0.5762, 0.7159, 0.7927, 0.8324, 0.8526, 0.8624,
400 & 0.8671, 0.8693, 0.8704, 0.8709, 0.8710, 2*0.8712
401 & /
402 DATA (GMVDR (I, 2, 4), I = 1, 14)
403 & /0.2634, 0.4375, 0.5532, 0.6291, 0.6763, 0.7048, 0.7213,
404 & 0.7310, 0.7363, 0.7395, 0.7411, 0.7420, 0.7426, 0.7428
405 & /
406 DATA (GMVDR (I, 1, 5), I = 1, 14)
407 & /0.0971, 0.1544, 0.2511, 0.3157, 0.3548, 0.3768, 0.3886,
408 & 0.3948, 0.3978, 0.3994, 0.4001, 0.4006, 0.4007, 0.4008
409 & /
410
411 DATA (GMVDR (I, 2, 5), I = 1, 14)
412 & /0.0924, 0.1470, 0.2458, 0.3123, 0.3527, 0.3756, 0.3877,
413 & 0.3942, 0.3974, 0.3990, 0.3998, 0.4002, 0.4004, 0.4005
414 & /
415
416 DATA (GMVDR (I, 1, 6), I = 1, 14)
417 & /0.0970, 0.1355, 0.1841, 0.2230, 0.2447, 0.2561, 0.2617,
418 & 0.2645, 0.2658, 0.2664, 0.2667, 3*0.2669
419 & /
420
421 DATA (GMVDR (I, 2, 6), I = 1, 14)
422 & /0.0934, 0.1337, 0.1812, 0.2213, 0.2437, 0.2554, 0.2613,
423 & 0.2642, 0.2656, 0.2662, 0.2665, 0.2667, 0.2667, 0.2668
424 & /
425
426 DATA (GMVDR (I, 1, 7), I = 1, 14) /14*1./
427 DATA (GMVDR (I, 2, 7), I = 1, 14) /14*1./
428
429 DATA (GMVDR (I, 1, 8), I = 1, 14) /14*1./
430 DATA (GMVDR (I, 2, 8), I = 1, 14) /14*1./
431
432 DATA (GMVDR (I, 1, 9), I = 1, 14) /14*1./
433 DATA (GMVDR (I, 2, 9), I = 1, 14) /14*1./
434
435 DATA (GMVDR (I, 1, 10), I = 1, 14) /14*1./
436 DATA (GMVDR (I, 2, 10), I = 1, 14) /14*1./
437
438 C****
439 C**** -----------------------------------------------------------
440
441 DATA (ALIDR (I, 1, 1), I = 1, 14)
442 & /0.2867, 0.2840, 0.2828, 0.2822, 0.2819, 0.2818, 2*0.2817,
443 & 6*0.2816
444 & /
445 DATA (ALIDR (I, 2, 1), I = 1, 14)
446 & /0.3564, 0.3573, 0.3577, 0.3580, 2*0.3581, 8*0.3582/
447 DATA (ALIDR (I, 1, 2), I = 1, 14)
448 & /0.2848, 0.2819, 0.2804, 0.2798, 0.2795, 2*0.2793, 7*0.2792/
449 DATA (ALIDR (I, 2, 2), I = 1, 14)
450 & /0.3544, 0.3550, 0.3553, 2*0.3555, 9*0.3556/
451 DATA (ALIDR (I, 1, 3), I = 1, 14)
452 & /0.2350, 0.2311, 0.2293, 0.2285, 0.2281, 0.2280, 8*0.2279/
453 DATA (ALIDR (I, 2, 3), I = 1, 14)
454 & /0.2474, 0.2436, 0.2418, 0.2410, 0.2406, 0.2405, 3*0.2404,
455 & 5*0.2403
456 & /
457 DATA (ALIDR (I, 1, 4), I = 1, 14)
458 & /0.5816, 0.6157, 0.6391, 0.6556, 0.6673, 0.6758, 0.6820,
459 & 0.6866, 0.6899, 0.6924, 0.6943, 0.6956, 0.6966, 0.6974
460 & /
461 DATA (ALIDR (I, 2, 4), I = 1, 14)
462 & /0.5489, 0.5770, 0.5955, 0.6079, 0.6163, 0.6221, 0.6261,
463 & 0.6288, 0.6308, 0.6321, 0.6330, 0.6337, 0.6341, 0.6344
464 & /
465 DATA (ALIDR (I, 1, 5), I = 1, 14)
466 & /0.2845, 0.2837, 0.2832, 0.2831, 0.2830, 9*0.2829/
467 DATA (ALIDR (I, 2, 5), I = 1, 14)
468 & /0.3532, 0.3562, 0.3578, 0.3586, 0.3590, 0.3592, 0.3594,
469 & 0.3594, 0.3594, 5*0.3595
470 & /
471 DATA (ALIDR (I, 1, 6), I = 1, 14)
472 & /0.2825, 0.2812, 0.2806, 0.2803, 0.2802, 9*0.2801/
473 DATA (ALIDR (I, 2, 6), I = 1, 14)
474 & /0.3512, 0.3538, 0.3552, 0.3559, 0.3562, 0.3564, 0.3565,
475 & 0.3565, 6*0.3566
476 & /
477
478 DATA (ALIDR (I, 1, 7), I = 1, 14) /14*ALIDRS/
479 DATA (ALIDR (I, 2, 7), I = 1, 14) /14*ALIDRS/
480
481 DATA (ALIDR (I, 1, 8), I = 1, 14) /14*ALIDRDL/
482 DATA (ALIDR (I, 2, 8), I = 1, 14) /14*ALIDRDL/
483
484 DATA (ALIDR (I, 1, 9), I = 1, 14) /14*ALIDRI/
485 DATA (ALIDR (I, 2, 9), I = 1, 14) /14*ALIDRI/
486
487 DATA (ALIDR (I, 1, 10), I = 1, 14) /14*ALIDRDD/
488 DATA (ALIDR (I, 2, 10), I = 1, 14) /14*ALIDRDD/
489
490 C****
491 C**** -----------------------------------------------------------
492 DATA (BTIDR (I, 1, 1), I = 1, 14)
493 & /0.1291, 0.1707, 0.1969, 0.2125, 0.2216, 0.2267, 0.2295,
494 & 0.2311, 0.2319, 0.2323, 0.2326, 2*0.2327, 0.2328
495 & /
496 DATA (BTIDR (I, 2, 1), I = 1, 14)
497 & /0.1939, 0.2357, 0.2598, 0.2735, 0.2810, 0.2851, 0.2874,
498 & 0.2885, 0.2892, 0.2895, 0.2897, 3*0.2898
499 & /
500 DATA (BTIDR (I, 1, 2), I = 1, 14)
501 & /0.1217, 0.1522, 0.1713, 0.1820, 0.1879, 0.1910, 0.1926,
502 & 0.1935, 0.1939, 0.1942, 2*0.1943, 2*0.1944
503 & /
504 DATA (BTIDR (I, 2, 2), I = 1, 14)
505 & /0.1781, 0.2067, 0.2221, 0.2301, 0.2342, 0.2363, 0.2374,
506 & 0.2379, 0.2382, 0.2383, 2*0.2384, 2*0.2385
507 & /
508 DATA (BTIDR (I, 1, 3), I = 1, 14)
509 & /0.0846, 0.1299, 0.1614, 0.1814, 0.1935, 0.2004, 0.2043,
510 & 0.2064, 0.2076, 0.2082, 0.2085, 2*0.2087, 0.2088
511 & /
512 DATA (BTIDR (I, 2, 3), I = 1, 14)
513 & /0.0950, 0.1410, 0.1722, 0.1921, 0.2042, 0.2111, 0.2151,
514 & 0.2172, 0.2184, 0.2191, 0.2194, 0.2196, 2*0.2197
515 & /
516 DATA (BTIDR (I, 1, 4), I = 1, 14)
517 & /0.5256, 0.7444, 0.9908, 1.2700, 1.5680, 1.8505, 2.0767,
518 & 2.2211, 2.2808, 2.2774, 2.2362, 2.1779, 2.1160, 2.0564
519 & /
520 DATA (BTIDR (I, 2, 4), I = 1, 14)
521 & /0.4843, 0.6714, 0.8577, 1.0335, 1.1812, 1.2858, 1.3458,
522 & 1.3688, 1.3685, 1.3546, 1.3360, 1.3168, 1.2989, 1.2838
523 & /
524 DATA (BTIDR (I, 1, 5), I = 1, 14)
525 & /0.1498, 0.1930, 0.2201, 0.2364, 0.2460, 0.2514, 0.2544,
526 & 0.2560, 0.2569, 0.2574, 0.2577, 0.2578, 0.2579, 0.2579
527 & /
528
529 DATA (BTIDR (I, 2, 5), I = 1, 14)
530 & /0.2184, 0.2656, 0.2927, 0.3078, 0.3159, 0.3202, 0.3224,
531 & 0.3235, 0.3241, 0.3244, 0.3245, 3*0.3246
532 & /
533
534 DATA (BTIDR (I, 1, 6), I = 1, 14)
535 & /0.1369, 0.1681, 0.1860, 0.1958, 0.2010, 0.2038, 0.2053,
536 & 0.2060, 0.2064, 0.2066, 0.2067, 3*0.2068
537 & /
538
539 DATA (BTIDR (I, 2, 6), I = 1, 14)
540 & /0.1969, 0.2268, 0.2416, 0.2488, 0.2521, 0.2537, 0.2544,
541 & 0.2547, 0.2548, 5*0.2549
542 & /
543
544
545 DATA (BTIDR (I, 1, 7), I = 1, 14) /14*0./
546 DATA (BTIDR (I, 2, 7), I = 1, 14) /14*0./
547
548 DATA (BTIDR (I, 1, 8), I = 1, 14) /14*0./
549 DATA (BTIDR (I, 2, 8), I = 1, 14) /14*0./
550
551 DATA (BTIDR (I, 1, 9), I = 1, 14) /14*0./
552 DATA (BTIDR (I, 2, 9), I = 1, 14) /14*0./
553
554 DATA (BTIDR (I, 1, 10), I = 1, 14) /14*0./
555 DATA (BTIDR (I, 2, 10), I = 1, 14) /14*0./
556
557 C****
558 C**** --------------------------------------------------------------
559 DATA (GMIDR (I, 1, 1), I = 1, 14)
560 & /0.1582, 0.2581, 0.3227, 0.3635, 0.3882, 0.4026, 0.4108,
561 & 0.4154, 0.4179, 0.4193, 0.4200, 0.4204, 0.4206, 0.4207
562 & /
563 DATA (GMIDR (I, 2, 1), I = 1, 14)
564 & /0.1934, 0.3141, 0.3818, 0.4200, 0.4415, 0.4533, 0.4598,
565 & 0.4633, 0.4651, 0.4662, 0.4667, 0.4671, 2*0.4672
566 & /
567 DATA (GMIDR (I, 1, 2), I = 1, 14)
568 & /0.1347, 0.1871, 0.2277, 0.2515, 0.2651, 0.2727, 0.2768,
569 & 0.2790, 0.2801, 0.2808, 0.2811, 0.2812, 0.2813, 0.2814
570 & /
571 DATA (GMIDR (I, 2, 2), I = 1, 14)
572 & /0.1440, 0.2217, 0.2629, 0.2839, 0.2947, 0.3003, 0.3031,
573 & 0.3046, 0.3054, 0.3058, 0.3060, 2*0.3061, 0.3062
574 & /
575 DATA (GMIDR (I, 1, 3), I = 1, 14)
576 & /0.1372, 0.2368, 0.3235, 0.3839, 0.4229, 0.4465, 0.4602,
577 & 0.4679, 0.4722, 0.4745, 0.4758, 0.4764, 0.4768, 0.4770
578 & /
579 DATA (GMIDR (I, 2, 3), I = 1, 14)
580 & /0.1435, 0.2524, 0.3370, 0.3955, 0.4332, 0.4563, 0.4697,
581 & 0.4773, 0.4815, 0.4839, 0.4851, 0.4858, 0.4861, 0.4863
582 & /
583 DATA (GMIDR (I, 1, 4), I = 1, 14)
584 & /0.4298, 0.9651, 1.6189, 2.4084, 3.2992, 4.1928, 4.9611,
585 & 5.5095, 5.8085, 5.9069, 5.8726, 5.7674, 5.6346, 5.4944
586 & /
587 DATA (GMIDR (I, 2, 4), I = 1, 14)
588 & /0.4167, 0.8974, 1.4160, 1.9414, 2.4147, 2.7803, 3.0202,
589 & 3.1468, 3.1954, 3.1932, 3.1676, 3.1328, 3.0958, 3.0625
590 & /
591 DATA (GMIDR (I, 1, 5), I = 1, 14)
592 & /0.1959, 0.3203, 0.3985, 0.4472, 0.4766, 0.4937, 0.5034,
593 & 0.5088, 0.5117, 0.5134, 0.5143, 0.5147, 0.5150, 0.5152
594 & /
595
596 DATA (GMIDR (I, 2, 5), I = 1, 14)
597 & /0.2328, 0.3859, 0.4734, 0.5227, 0.5498, 0.5644, 0.5720,
598 & 0.5761, 0.5781, 0.5792, 0.5797, 0.5800, 0.5802, 0.5802
599 & /
600
601 DATA (GMIDR (I, 1, 6), I = 1, 14)
602 & /0.1447, 0.2244, 0.2698, 0.2953, 0.3094, 0.3170, 0.3211,
603 & 0.3233, 0.3244, 0.3250, 0.3253, 0.3255, 0.3256, 0.3256
604 & /
605
606 DATA (GMIDR (I, 2, 6), I = 1, 14)
607 & /0.1643, 0.2624, 0.3110, 0.3347, 0.3461, 0.3517, 0.3543,
608 & 0.3556, 0.3562, 0.3564, 0.3565, 0.3566, 0.3566, 0.3566
609 & /
610
611 DATA (GMIDR (I, 1, 7), I = 1, 14) /14*1./
612 DATA (GMIDR (I, 2, 7), I = 1, 14) /14*1./
613
614 DATA (GMIDR (I, 1, 8), I = 1, 14) /14*1./
615 DATA (GMIDR (I, 2, 8), I = 1, 14) /14*1./
616
617 DATA (GMIDR (I, 1, 9), I = 1, 14) /14*1./
618 DATA (GMIDR (I, 2, 9), I = 1, 14) /14*1./
619
620 DATA (GMIDR (I, 1, 10), I = 1, 14) /14*1./
621 DATA (GMIDR (I, 2, 10), I = 1, 14) /14*1./
622
623
624 C**** -----------------------------------------------------------
625
626 DATA GRN /0.33, 0.67/
627
628 #include "snwmid.h"
629 DATA SNWALB /.65, .38, .65, .38,
630 & .65, .38, .65, .38,
631 & .65, .38, .65, .38,
632 & .65, .38, .65, .38,
633 & .65, .38, .65, .38,
634 & .65, .38, .65, .38,
635 & .65, .38, .65, .38,
636 & .65, .38, .65, .38,
637 & .80, .60, .80, .60,
638 & .65, .38, .65, .38
639 & /
640
641 #ifdef CRAY
642 #ifdef f77
643 cfpp$ expand (coeff)
644 #endif
645 #endif
646
647 DO 100 I=1,IRUN
648 ALA = MIN (MAX (ZERO, VLAI(I)), ALATRM)
649 LAI = 1 + MAX(0, INT((ALA-BLAI)/DLAI) )
650 DX = (ALA - (BLAI+(LAI-1)*DLAI)) * (ONE/DLAI)
651 DY = (VGRN(I)- GRN(1)) * (ONE/(GRN(2) - GRN(1)))
652
653 ALPHA = COEFF (ALVDR (1, 1, ITYP (I)), NLAI, LAI ,DX, DY)
654 BETA = COEFF (BTVDR (1, 1, ITYP (I)), NLAI, LAI ,DX, DY)
655 GAMMA = COEFF (GMVDR (1, 1, ITYP (I)), NLAI, LAI ,DX, DY)
656
657 AVISDR(I) = ALPHA - ZTH(I)*BETA / (GAMMA+ZTH(I))
658 AVISDF(I) = ALPHA-BETA
659 & + 2.*BETA*GAMMA*(1.-GAMMA*LOG((1.+GAMMA)/GAMMA))
660
661 ALPHA = COEFF (ALIDR (1, 1, ITYP (I)), NLAI, LAI ,DX, DY)
662 BETA = COEFF (BTIDR (1, 1, ITYP (I)), NLAI, LAI ,DX, DY)
663 GAMMA = COEFF (GMIDR (1, 1, ITYP (I)), NLAI, LAI ,DX, DY)
664
665 ANIRDR(I) = ALPHA - ZTH(I)*BETA / (GAMMA+ZTH(I))
666 ANIRDF(I) = ALPHA-BETA
667 & + 2.*BETA*GAMMA*(1.-GAMMA*LOG((1.+GAMMA)/GAMMA))
668
669 IF (SNW (I) .GT. ZERO) THEN
670 FAC = SNW(I) / (SNW(I) + SNWMID(ITYP(I)))
671
672 AVISDR(I) = AVISDR(I) + (SNWALB(1,ITYP(I)) - AVISDR(I)) * FAC
673 ANIRDR(I) = ANIRDR(I) + (SNWALB(2,ITYP(I)) - ANIRDR(I)) * FAC
674 AVISDF(I) = AVISDF(I) + (SNWALB(3,ITYP(I)) - AVISDF(I)) * FAC
675 ANIRDF(I) = ANIRDF(I) + (SNWALB(4,ITYP(I)) - ANIRDF(I)) * FAC
676 ENDIF
677
678 100 CONTINUE
679
680 RETURN
681 END
682 FUNCTION COEFF(TABLE, NTABL, LAI ,DX, DY)
683
684 INTEGER NTABL, LAI
685 _RL coeff
686 _RL TABLE (NTABL, 2), DX, DY
687
688 COEFF = (TABLE(LAI, 1)
689 & + (TABLE(LAI ,2) - TABLE(LAI ,1)) * DY ) * (1.0-DX)
690 & + (TABLE(LAI+1,1)
691 & + (TABLE(LAI+1,2) - TABLE(LAI+1,1)) * DY ) * DX
692
693 RETURN
694 END
695
696 SUBROUTINE GETLGR(sec,IMON,IDAY,ALAT,ITYP,NCHPS,nchpdim,
697 & nSx,nSy,bi,bj,ALAI,AGRN)
698 C*********************************************************************
699 implicit none
700
701 integer ntyps
702 _RL one,daylen
703 PARAMETER (NTYPS=10)
704 parameter (one = 1.)
705 parameter (daylen = 86400.)
706
707 integer sec, imon, iday, nchps, nchpdim, nSx, nSy, bi, bj
708 _RL ALAI(nchpdim,nSx,nSy), AGRN(nchpdim,nSx,nSy)
709 _RL ALAT(nchpdim,nSx,nSy)
710 integer ITYP(nchpdim,nSx,nSy)
711
712 integer i,midmon,midm,midp,id,k1,k2,kk1,kk2
713 _RL fac
714
715 INTEGER DAYS(12)
716 DATA DAYS/31,28,31,30,31,30,31,31,30,31,30,31/
717
718 _RL VGLA(12,NTYPS), VGGR(12,NTYPS)
719
720 DATA VGLA /
721 1 5.117, 5.117, 5.117, 5.117, 5.117, 5.117, 5.117, 5.117,
722 1 5.117, 5.117, 5.117, 5.117,
723 2 0.520, 0.520, 0.867, 2.107, 4.507, 6.773, 7.173, 6.507,
724 2 5.040, 2.173, 0.867, 0.520,
725 3 8.760, 9.160, 9.827,10.093,10.360,10.760,10.493,10.227,
726 3 10.093, 9.827, 9.160, 8.760,
727 4 0.782, 0.893, 1.004, 1.116, 1.782, 3.671, 4.782, 4.227,
728 4 2.004, 1.227, 1.004, 0.893,
729 5 3.760, 3.760, 2.760, 1.760, 1.760, 1.760, 1.760, 5.760,
730 5 10.760, 7.760, 4.760, 3.760,
731 6 0.739, 0.739, 0.739, 0.739, 0.739, 1.072, 5.072, 5.739,
732 6 4.405, 0.739, 0.739, 0.739,
733 7 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001,
734 7 0.001, 0.001, 0.001, 0.001,
735 8 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001,
736 8 0.001, 0.001, 0.001, 0.001,
737 9 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001,
738 9 0.001, 0.001, 0.001, 0.001,
739 1 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001,
740 1 0.001, 0.001, 0.001, 0.001
741 & /
742
743
744 DATA VGGR
745 1 /0.905, 0.905, 0.905, 0.905, 0.905, 0.905, 0.905, 0.905,
746 1 0.905, 0.905, 0.905, 0.905,
747 2 0.026, 0.026, 0.415, 0.759, 0.888, 0.925, 0.836, 0.697,
748 2 0.331, 0.166, 0.015, 0.026,
749 3 0.913, 0.917, 0.923, 0.925, 0.927, 0.905, 0.902, 0.913,
750 3 0.898, 0.855, 0.873, 0.913,
751 4 0.568, 0.622, 0.664, 0.697, 0.810, 0.908, 0.813, 0.394,
752 4 0.443, 0.543, 0.553, 0.498,
753 5 0.798, 0.532, 0.362, 0.568, 0.568, 0.568, 0.568, 0.868,
754 5 0.651, 0.515, 0.630, 0.798,
755 6 0.451, 0.451, 0.451, 0.451, 0.451, 0.622, 0.920, 0.697,
756 6 0.076, 0.451, 0.451, 0.451,
757 7 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001,
758 7 0.001, 0.001, 0.001, 0.001,
759 8 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001,
760 8 0.001, 0.001, 0.001, 0.001,
761 9 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001,
762 9 0.001, 0.001, 0.001, 0.001,
763 1 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001,
764 1 0.001, 0.001, 0.001, 0.001
765 & /
766
767
768 MIDMON = DAYS(IMON)/2 + 1
769
770
771 IF (IDAY .LT. MIDMON) THEN
772 K2 = IMON
773 K1 = MOD(IMON+10,12) + 1
774 ELSE
775 K1 = IMON
776 K2 = MOD(IMON,12) + 1
777 ENDIF
778
779 IF (IDAY .LT. MIDMON) THEN
780 MIDM = DAYS(K1)/2 + 1
781 MIDP = DAYS(K1) + MIDMON
782 ID = IDAY + DAYS(K1)
783 ELSE
784 MIDM = MIDMON
785 MIDP = DAYS(K2)/2 + 1 + DAYS(K1)
786 ID = IDAY
787 ENDIF
788
789 FAC = (float(ID -MIDM)*DAYLEN + SEC) /
790 & (float(MIDP-MIDM)*DAYLEN )
791
792 DO 220 I=1,NCHPS
793
794 IF(ALAT(I,bi,bj).GT.0.) THEN
795 KK1 = K1
796 KK2 = K2
797 ELSE
798 KK1 = MOD(K1+5,12) + 1
799 KK2 = MOD(K2+5,12) + 1
800 ENDIF
801
802 ALAI(I,bi,bj) = VGLA(KK2,ITYP(I,bi,bj))*FAC+
803 & VGLA(KK1,ITYP(I,bi,bj))*(ONE-FAC)
804 AGRN(I,bi,bj) = VGGR(KK2,ITYP(I,bi,bj))*FAC+
805 & VGGR(KK1,ITYP(I,bi,bj))*(ONE-FAC)
806
807 220 CONTINUE
808
809 RETURN
810 END
811
812 subroutine getalb(sec,month,day,cosz,snodep,fraci,fracg,im,jm,
813 & nchp,nchptot,nchpland,nSx,nSy,bi,bj,igrd,ityp,chfr,chlt,
814 & alai,agrn,albvr,albvf,albnr,albnf)
815 C***********************************************************************
816 C PURPOSE
817 C To act as an interface to routine sibalb, which calculates
818 C the four albedos for use by the shortwave radiation routine
819 C
820 C INPUT:
821 C sec - number of seconds into the day of current time
822 C month - month of the year of current time
823 C day - day of the month of current time
824 C cosz - local cosine of the zenith angle [im,jm]
825 C snodep - snow cover in meters [nchp,nSx,nSy]
826 C fraci - real array in grid space of total sea ice fraction [im,jm]
827 C fracg - real array in grid space of total land fraction [im,jm]
828 C im - model grid longitude dimension
829 C jm - model grid latitude dimension (number of lat. points)
830 C nchp - integer actual number of tiles in tile space
831 C nchpland - integer number of land tiles
832 C nSx - number of processors in x-direction
833 C nSy - number of processors in y-direction
834 C bi - processors index in x-direction
835 C bj - processors index in y-direction
836 C igrd - integer array in tile space of grid point number for each
837 C tile [nchp,nSx,nSy]
838 C ityp - integer array in tile space of land surface type for each
839 C tile [nchp,nSx,nSy]
840 C chfr - real array in tile space of land surface type fraction for
841 C each tile [nchp,nSx,nSy]
842 C chlt - real array in tile space of latitude value for each tile
843 C [nchp,nSx,nSy]
844 C
845 C OUTPUT:
846 C albvr - real array [im,jm] of visible direct beam albedo
847 C albvf - real array [im,jm] of visible diffuse beam albedo
848 C albnr - real array [im,jm] of near-ir direct beam albedo
849 C albnf - real array [im,jm] of near-ir diffuse beam albedo
850 C
851 C***********************************************************************
852 implicit none
853
854 integer sec,month,day,im,jm,nchp,nchptot,nchpland,nSx,nSy,bi,bj
855 _RL cosz(im,jm),fraci(im,jm),fracg(im,jm)
856 _RL snodep(nchp,nSx,nSy),chfr(nchp,nSx,nSy),chlt(nchp,nSx,nSy)
857 integer igrd(nchp,nSx,nSy),ityp(nchp,nSx,nSy)
858 _RL alai(nchp,nSx,nSy),agrn(nchp,nSx,nSy)
859 _RL albvr(im,jm,nSx,nSy),albvf(im,jm,nSx,nSy)
860 _RL albnr(im,jm,nSx,nSy),albnf(im,jm,nSx,nSy)
861
862 _RL one,a0,a1,a2,a3,ocnalb,albsi
863 PARAMETER (one = 1.)
864 PARAMETER (A0= 0.40670980)
865 PARAMETER (A1=-1.2523634 )
866 PARAMETER (A2= 1.4224051 )
867 PARAMETER (A3=-0.55573341)
868 PARAMETER (OCNALB=0.08)
869 PARAMETER (ALBSI=0.7)
870
871 _RL alboc(im,jm)
872 _RL AVISDR(nchp),ANIRDR(nchp),AVISDF(nchp)
873 _RL ANIRDF(nchp)
874 _RL zenith(nchp)
875 _RL tmpij(im,jm)
876 integer i,j
877
878 DO I=1,IM
879 DO J=1,JM
880 ALBOC(I,J) = A0 + (A1 + (A2 + A3*cosz(I,J))*cosz(I,J))*cosz(I,J)
881 ALBVR(I,J,bi,bj) = ALBSI*FRACI(I,J) + ALBOC(I,J)*(ONE-FRACI(I,J))
882 ALBNR(I,J,bi,bj) = ALBVR(I,J,bi,bj)
883 ALBVF(I,J,bi,bj) = ALBSI * FRACI(I,J) + OCNALB * (ONE-FRACI(I,J))
884 ALBNF(I,J,bi,bj) = ALBVF(I,J,bi,bj)
885 ENDDO
886 ENDDO
887
888 C and now some conversions from grid space to tile space before sibalb
889
890 call grd2msc(cosz,im,jm,igrd,zenith,nchp,nchpland)
891
892 C and now call sibalb
893
894 call sibalb(avisdr,anirdr,avisdf,anirdf,alai(1,bi,bj),
895 & agrn(1,bi,bj),zenith,snodep(1,bi,bj),ityp(1,bi,bj),nchpland)
896
897 C finally some transformations back to grid space for albedos
898
899 DO I=1,IM
900 DO J=1,JM
901 tmpij(i,j) = albvr(i,j,bi,bj)
902 ENDDO
903 ENDDO
904 call msc2grd(igrd(1,bi,bj),chfr(1,bi,bj),avisdr,nchp,nchpland,
905 & fracg,tmpij,im,jm)
906
907 DO I=1,IM
908 DO J=1,JM
909 albvr(i,j,bi,bj) = tmpij(i,j)
910 ENDDO
911 ENDDO
912 DO I=1,IM
913 DO J=1,JM
914 tmpij(i,j) = albvf(i,j,bi,bj)
915 ENDDO
916 ENDDO
917 call msc2grd(igrd(1,bi,bj),chfr(1,bi,bj),avisdf,nchp,nchpland,
918 & fracg,tmpij,im,jm)
919 DO I=1,IM
920 DO J=1,JM
921 albvf(i,j,bi,bj) = tmpij(i,j)
922 ENDDO
923 ENDDO
924 DO I=1,IM
925 DO J=1,JM
926 tmpij(i,j) = albnr(i,j,bi,bj)
927 ENDDO
928 ENDDO
929 call msc2grd(igrd(1,bi,bj),chfr(1,bi,bj),anirdr,nchp,nchpland,
930 & fracg,tmpij,im,jm)
931 DO I=1,IM
932 DO J=1,JM
933 albnr(i,j,bi,bj) = tmpij(i,j)
934 ENDDO
935 ENDDO
936 DO I=1,IM
937 DO J=1,JM
938 tmpij(i,j) = albnf(i,j,bi,bj)
939 ENDDO
940 ENDDO
941 call msc2grd(igrd(1,bi,bj),chfr(1,bi,bj),anirdf,nchp,nchpland,
942 & fracg,tmpij,im,jm)
943 DO I=1,IM
944 DO J=1,JM
945 albnf(i,j,bi,bj) = tmpij(i,j)
946 ENDDO
947 ENDDO
948
949 return
950 end
951
952 subroutine getemiss(fracg,im,jm,nchp,nchptot,nSx,nSy,bi,bj,
953 & igrd,ityp,chfr,snowdep,fraci,emiss)
954 C***********************************************************************
955 C PURPOSE
956 C To act as an interface to routine to emissivity, which calculates
957 C ten bands of surface emissivities for use by the longwave radiation
958 C
959 C INPUT:
960 C fracg - real array in grid space of total land fraction [im,jm]
961 C im - model grid longitude dimension
962 C jm - model grid latitude dimension (number of lat. points)
963 C nchp - integer actual number of tiles in tile space
964 C nSx - number of processors in x-direction
965 C nSy - number of processors in y-direction
966 C bi - processors index in x-direction
967 C bj - processors index in y-direction
968 C igrd - integer array in tile space of grid point number for each
969 C tile [nchp]
970 C ityp - integer array in tile space of land surface type for each
971 C tile [nchp]
972 C chfr - real array in tile space of land surface type fraction for
973 C each tile [nchp]
974 C snowdep - real array in tile space of snow depth (liquid water equiv)
975 C in mm [nchp]
976 C fraci - real array in tile space of sea ice fraction [nchp]
977 C
978 C OUTPUT:
979 C emiss - real array [im,jm,10,nSx,nSy] - surface emissivity (frac)
980 C
981 C***********************************************************************
982 implicit none
983 integer im,jm,nchp,nchptot,nSx,nSy,bi,bj
984 _RL fracg(im,jm)
985 _RL chfr(nchp,nSx,nSy)
986 integer igrd(nchp,nSx,nSy), ityp(nchp,nSx,nSy)
987 _RL snowdep(nchp,nSx,nSy)
988 _RL fraci(nchp)
989 _RL emiss(im,jm,10,nSx,nSy)
990
991 _RL emisstile(nchp,10)
992 _RL tmpij(im,jm)
993 integer i,j,k,n
994
995 do i = 1,10
996 do n = 1,nchptot
997 emisstile(n,i) = 1.
998 enddo
999 enddo
1000
1001 c call emissivity to get values in tile space
1002 c -------------------------------------------
1003 call emissivity(snowdep(1,bi,bj),fraci,nchp,nchptot,ityp(1,bi,bj),
1004 & emisstile)
1005
1006 c transform back to grid space for emissivities
1007 c ---------------------------------------------
1008 do k = 1,10
1009 do j = 1,jm
1010 do i = 1,im
1011 tmpij(i,j) = 0.0
1012 enddo
1013 enddo
1014 call msc2grd(igrd(1,bi,bj),chfr(1,bi,bj),emisstile(1,k),nchp,
1015 & nchptot,fracg,tmpij,im,jm)
1016 do j = 1,jm
1017 do i = 1,im
1018 emiss(i,j,k,bi,bj) = tmpij(i,j)
1019 enddo
1020 enddo
1021 enddo
1022
1023 return
1024 end
1025
1026 subroutine emissivity (snowdepth,fraci,nchp,numpts,ityp,newemis)
1027 implicit none
1028 integer nchp,numpts
1029 integer ityp(nchp)
1030 _RL snowdepth(nchp)
1031 _RL fraci(nchp)
1032 _RL newemis(nchp,10)
1033
1034 _RL emis(12,11)
1035 _RL fac
1036 integer i,j
1037
1038 c-----------------------------------------------------------------------
1039 c NOTE: Emissivities were obtained for the following surface types:
1040 c ( 1) evergreen needleleaf = conifer
1041 c ( 2) evergreen broadleaf = conifer
1042 c ( 3) deciduous needleleaf = deciduous
1043 c ( 4) deciduous broadleaf = deciduous
1044 c ( 5) mixed forests = 1/2 conifer + 1/2 deciduous = tree
1045 c ( 6) closed shrublands = 3/4 tree + 1/4 quartz
1046 c ( 7) open shrubland = 1/4 tree + 3/4 quartz
1047 c ( 8) woody savannas = grass
1048 c ( 9) savannas = grass
1049 c (10) grasslands = grass
1050 c (11) permanent wetlands = 1/2 grass + 1/2 water
1051 c (12) croplands = grass
1052 c (13) urban = black body
1053 c (14) mosaic = 1/2 grass + 1/2 mixed forest
1054 c (15) snow/ice
1055 c (16) barren/sparsely vegetated = desert(quartz)
1056 c (17) water
1057 c (18) tundra = frost
1058 c
1059 c NOTE: Translation to Koster-Suarez surface types was as follows:
1060 c ( 1) broadleaf evergreen FROM above type 1 (conifer)
1061 c ( 2) broadleaf deciduous FROM above type 2 (deciduous)
1062 c ( 3) needleleaf evergreen FROM above type 1 (conifer)
1063 c ( 4) groundcover FROM above type 10 (grass)
1064 c ( 5) broadleaf shrubs FROM above type 6 (closed shrublands)
1065 c ( 6) dwarf trees (tundra) FROM above type 18 (tundra)
1066 c ( 7) bare soil FROM above type 16 (desert)
1067 c ( 8) light desert FROM above type 16 (desert)
1068 c ( 9) glacier FROM above type 15 (snow/ice)
1069 c ( 10) dark desert FROM above type 16 (desert)
1070 c (100) ocean FROM above type 17 (water)
1071 c
1072 c NOTE: snow-covered ground uses interpolated emissivities based on snow depth
1073 c =============================================================================
1074 c -----------------------------------------------------------------------------
1075 c Emmissivities for 12 bands in Fu/Liou
1076 c band 1: 4.5 - 5.3 um
1077 c band 2: 5.3 - 5.9 um
1078 c band 3: 5.9 - 7.1 um
1079 c band 4: 7.1 - 8.0 um
1080 c band 5: 8.0 - 9.1 um
1081 c band 6: 9.1 - 10.2 um
1082 c band 7: 10.2 - 12.5 um
1083 c band 8: 12.5 - 14.9 um
1084 c band 9: 14.9 - 18.5 um
1085 c band 10: 18.5 - 25.0 um
1086 c band 11: 25.0 - 35.7 um
1087 c band 12: 35.7 - oo um
1088 c
1089 c-------------------------------------------------------------------------
1090 data ((emis(i,j),i=1,12),j=1,11) /
1091 C evergreen needleleaf
1092 & 0.9891, 0.9892, 0.9900, 0.9914, 0.9908, 0.9903,
1093 & 0.9898, 0.9948, 1.0000, 1.0000, 1.0000, 1.0000,
1094 C deciduous needleleaf
1095 & 0.9849, 0.9856, 0.9841, 0.9831, 0.9789, 0.9805,
1096 & 0.9733, 0.9869, 1.0000, 1.0000, 1.0000, 1.0000,
1097 C evergreen needleleaf
1098 & 0.9891, 0.9892, 0.9900, 0.9914, 0.9908, 0.9903,
1099 & 0.9898, 0.9948, 1.0000, 1.0000, 1.0000, 1.0000,
1100 C grasslands
1101 & 0.9867, 0.9897, 0.9920, 0.9933, 0.9830, 0.9752,
1102 & 0.9853, 0.9928, 1.0000, 1.0000, 1.0000, 1.0000,
1103 C closed shrublands
1104 & 0.9490, 0.9697, 0.9738, 0.9712, 0.9474, 0.9582,
1105 & 0.9663, 0.9747, 0.9836, 0.9836, 0.9836, 0.9836,
1106 C tundra
1107 & 0.9469, 0.9670, 0.9883, 0.9795, 0.9751, 0.9767,
1108 & 0.9920, 0.9888, 0.9888, 0.9888, 0.9888, 0.9888,
1109 C barren
1110 & 0.8353, 0.9163, 0.9342, 0.9229, 0.8354, 0.8766,
1111 & 0.9210, 0.9262, 0.9345, 0.9345, 0.9345, 0.9345,
1112 C barren
1113 & 0.8353, 0.9163, 0.9342, 0.9229, 0.8354, 0.8766,
1114 & 0.9210, 0.9262, 0.9345, 0.9345, 0.9345, 0.9345,
1115 C snow/ice
1116 & 0.9998, 0.9998, 0.9998, 0.9998, 0.9998, 0.9999,
1117 & 0.9997, 0.9994, 0.9995, 0.9995, 0.9995, 0.9995,
1118 C barren
1119 & 0.8353, 0.9163, 0.9342, 0.9229, 0.8354, 0.8766,
1120 & 0.9210, 0.9262, 0.9345, 0.9345, 0.9345, 0.9345,
1121 C water
1122 & 0.9788, 0.9833, 0.9819, 0.9820, 0.9835, 0.9865,
1123 & 0.9886, 0.9719, 0.9719, 0.9719, 0.9719, 0.9719/
1124
1125 #include "snwmid.h"
1126
1127 c Convert to the 10 bands needed by Chou Radiation
1128 c ------------------------------------------------
1129 do i=1,numpts
1130
1131 c land points
1132 c------------
1133 if(ityp(i).le.10)then
1134 newemis(i, 1) = (emis( 1,ityp(i))+emis(2,ityp(i)))/2.
1135 newemis(i, 2) = (emis( 2,ityp(i))+emis(3,ityp(i)))/2.
1136 newemis(i, 3) = (emis( 4,ityp(i))+emis(5,ityp(i)))/2.
1137 newemis(i, 4) = emis( 6,ityp(i))
1138 newemis(i, 5) = emis( 7,ityp(i))
1139 newemis(i, 6) = emis( 8,ityp(i))
1140 newemis(i, 7) = emis( 9,ityp(i))
1141 newemis(i, 8) = (emis(10,ityp(i))+emis(11,ityp(i)))/2.
1142 newemis(i, 9) = emis(12,ityp(i))
1143 newemis(i,10) = emis( 4,ityp(i))
1144
1145 c modify emissivity for snow based on snow depth (like albedo)
1146 c-------------------------------------------------------------
1147 if(snowdepth (i).gt.0.) then
1148 fac = snowdepth(i) / (snowdepth(i) + snwmid(ityp(i)))
1149 newemis(i, 1) = newemis(i, 1) + (((emis( 1,9)+emis( 2,9))/2.)
1150 & - newemis(i, 1)) * fac
1151 newemis(i, 2) = newemis(i, 2) + (((emis( 2,9)+emis( 3,9))/2.)
1152 & - newemis(i, 2)) * fac
1153 newemis(i, 3) = newemis(i, 3) + (((emis( 4,9)+emis( 5,9))/2.)
1154 & - newemis(i, 3)) * fac
1155 newemis(i, 4) = newemis(i, 4) + (emis( 6,9)
1156 & - newemis(i, 4)) * fac
1157 newemis(i, 5) = newemis(i, 5) + (emis( 7,9)
1158 & - newemis(i, 5)) * fac
1159 newemis(i, 6) = newemis(i, 6) + (emis( 8,9)
1160 & - newemis(i, 6)) * fac
1161 newemis(i, 7) = newemis(i, 7) + (emis( 9,9)
1162 & - newemis(i, 7)) * fac
1163 newemis(i, 8) = newemis(i, 8) + (((emis(10,9)+emis(11,9))/2.)
1164 & - newemis(i, 8)) * fac
1165 newemis(i, 9) = newemis(i, 9) + (emis(12,9)
1166 & - newemis(i, 9)) * fac
1167 newemis(i,10) = newemis(i,10) + (emis( 4,9)
1168 & - newemis(i,10)) * fac
1169 endif
1170
1171 c open water
1172 c-----------
1173 else
1174 if(fraci(i).eq.0.)then
1175 newemis(i, 1) = (emis( 1,11)+emis(2,11))/2.
1176 newemis(i, 2) = (emis( 2,11)+emis(3,11))/2.
1177 newemis(i, 3) = (emis( 4,11)+emis(5,11))/2.
1178 newemis(i, 4) = emis( 6,11)
1179 newemis(i, 5) = emis( 7,11)
1180 newemis(i, 6) = emis( 8,11)
1181 newemis(i, 7) = emis( 9,11)
1182 newemis(i, 8) = (emis(10,11)+emis(11,11))/2.
1183 newemis(i, 9) = emis(12,11)
1184 newemis(i,10) = emis( 4,11)
1185
1186 c sea ice (like glacier and snow)
1187 c--------------------------------
1188 else
1189 newemis(i, 1) = (emis( 1,9)+emis(2,9))/2.
1190 newemis(i, 2) = (emis( 2,9)+emis(3,9))/2.
1191 newemis(i, 3) = (emis( 4,9)+emis(5,9))/2.
1192 newemis(i, 4) = emis( 6,9)
1193 newemis(i, 5) = emis( 7,9)
1194 newemis(i, 6) = emis( 8,9)
1195 newemis(i, 7) = emis( 9,9)
1196 newemis(i, 8) = (emis(10,9)+emis(11,9))/2.
1197 newemis(i, 9) = emis(12,9)
1198 newemis(i,10) = emis( 4,9)
1199 endif
1200 endif
1201 enddo
1202
1203 return
1204 end
1205 subroutine get_landfrac(im,jm,nSx,nSy,bi,bj,maxtyp,surftype,
1206 & tilefrac,frac)
1207 C***********************************************************************
1208 C Purpose
1209 C To compute the total fraction of land within a model grid-box
1210 C
1211 C***********************************************************************
1212 implicit none
1213
1214 integer im,jm,nSx,nSy,bi,bj,maxtyp
1215 integer surftype(im,jm,maxtyp,nSx,nSy)
1216 _RL tilefrac(im,jm,maxtyp,nSx,nSy)
1217 _RL frac(im,jm)
1218
1219 integer i,j,k
1220
1221 do j=1,jm
1222 do i=1,im
1223 frac(i,j) = 0.0
1224 enddo
1225 enddo
1226
1227 do k=1,maxtyp
1228 do j=1,jm
1229 do i=1,im
1230 if( (surftype(i,j,k,bi,bj).lt.100.).and.
1231 & (tilefrac(i,j,k,bi,bj).gt.0.0))then
1232 frac(i,j) = frac(i,j) + tilefrac(i,j,k,bi,bj)
1233 endif
1234 enddo
1235 enddo
1236 enddo
1237
1238 return
1239 end

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