/[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 1.22 - (show annotations) (download)
Thu Aug 12 15:21:22 2004 UTC (19 years, 10 months ago) by molod
Branch: MAIN
CVS Tags: checkpoint55c_post, checkpoint54e_post, checkpoint55d_pre, checkpoint55h_post, checkpoint55b_post, checkpoint55, checkpoint54f_post, checkpoint55g_post, checkpoint55f_post, checkpoint55e_post, checkpoint55a_post, checkpoint55d_post
Changes since 1.21: +9 -8 lines
Debugging - Code for work-around for input vegetation dataset

1 C $Header: /u/gcmpack/MITgcm/pkg/fizhi/update_earth_exports.F,v 1.21 2004/07/28 22:08:40 molod 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's 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 myTime, myIter, myThid
31
32 logical alarm
33 external alarm
34 _RL lats(sNx,sNy), lons(sNx,sNy), cosz(sNx,sNy)
35 _RL fraci(sNx,sNy), fracl(sNx,sNy)
36 _RL ficetile(nchp)
37 _RL radius
38 _RL tmpij(sNx,sNy)
39 _RL tmpchp(nchp)
40 integer i, j, n, bi, bj
41 integer im1, im2, jm1, jm2, idim1, idim2, jdim1, jdim2
42 integer sec, day, month
43 integer nmonf,ndayf,nsecf
44 nsecf(n) = n/10000*3600 + mod(n,10000)/100* 60 + mod(n,100)
45 nmonf(n) = mod(n,10000)/100
46 ndayf(n) = mod(n,100)
47
48 idim1 = 1-OLx
49 idim2 = sNx+OLx
50 jdim1 = 1-OLy
51 jdim2 = sNy+OLy
52 im1 = 1
53 im2 = sNx
54 jm1 = 1
55 jm2 = sNy
56 month = nmonf(nymd)
57 day = ndayf(nymd)
58 sec = nsecf(nhms)
59
60 do bj = myByLo(myThid), myByHi(myThid)
61 do bi = myBxLo(myThid), myBxHi(myThid)
62 do j = jm1,jm2
63 do i = im1,im2
64 lons(i,j) = xC(i,j,bi,bj)
65 lats(i,j) = yC(i,j,bi,bj)
66 enddo
67 enddo
68
69 call get_landfrac(im2,jm2,nSx,nSy,bi,bj,maxtyp,surftype,tilefrac,
70 . fracl)
71
72 do j = jm1,jm2
73 do i = im1,im2
74 if(sice(i,j,bi,bj).gt.0.) then
75 fraci(i,j) = 1.
76 else
77 fraci(i,j) = 0.
78 endif
79 enddo
80 enddo
81
82 C***********************************************************************
83 C* Get Leaf-Area-Index and Greenness Index *
84 C***********************************************************************
85
86 if( alarm('turb') .or. alarm('radsw') ) then
87 call getlgr (sec,month,day,chlt,ityp,nchpland(bi,bj),
88 . nchp,nSx,nSy,bi,bj,alai,agrn )
89 endif
90
91 C **********************************************************************
92 C Compute Surface Albedo
93 C **********************************************************************
94
95 if( alarm('radsw') ) then
96 call astro(nymd,nhms,lats,lons,im2*jm2,cosz,radius)
97 call getalb(sec,month,day,cosz,snodep,fraci,fracl,im2,jm2,nchp,
98 . nchptot(bi,bj),nchpland(bi,bj),nSx,nSy,bi,bj,igrd,ityp,
99 . chfr,chlt,alai,agrn,
100 . albvisdr,albvisdf,albnirdr,albnirdf )
101 endif
102
103 C **********************************************************************
104 C Compute Surface Emissivity
105 C **********************************************************************
106
107 if( alarm('radlw') ) then
108 call grd2msc(fraci,im2,jm2,igrd,ficetile,nchp,nchptot(bi,bj))
109 call getemiss(fracl,im2,jm2,nchp,nchptot(bi,bj),nSx,nSy,bi,bj,
110 . igrd,ityp,chfr,snodep,ficetile,emiss)
111 endif
112
113 C*********************************************************************
114 C Ground Temperature Over Ocean is from SST array,
115 C Over land is from tcanopy
116 C*********************************************************************
117
118 do j = jm1,jm2
119 do i = im1,im2
120 tmpij(i,j) = 0.
121 enddo
122 enddo
123 do i = 1,nchpland(bi,bj)
124 tmpchp(i) = tcanopy(i,bi,bj)
125 enddo
126 call msc2grd(igrd(1,bi,bj),chfr(1,bi,bj),tmpchp,
127 . nchp,nchpland(bi,bj),fracl,tmpij,im2,jm2)
128 do j = jm1,jm2
129 do i = im1,im2
130 tgz(i,j,bi,bj) = tmpij(i,j)
131 if(fracl(i,j).lt.0.3.and.sice(i,j,bi,bj).eq.0.0)
132 . tgz(i,j,bi,bj) = sst(i,j,bi,bj)
133 enddo
134 enddo
135
136 enddo
137 enddo
138
139 return
140 end
141
142 SUBROUTINE SIBALB ( AVISDR, ANIRDR, AVISDF, ANIRDF,
143 . VLAI, VGRN, ZTH, SNW, ITYP, IRUN )
144
145 C*********************************************************************
146 C The input list is as follows:
147 C VLAI: the leaf area index.
148 C VGRN: the greenness index.
149 C ZTH: The cosine of the solar zenith angle.
150 C SNW: Snow cover in meters water equivalent.
151 C ITYP: The surface type (grass, bare soil, etc.)
152 C IRUN: Number of tiles (same as used for SUBROUTINE TILE).
153 C
154 C The output list is as follows:
155 C
156 C AVISDR: visible, direct albedo.
157 C ANIRDR: near infra-red, direct albedo.
158 C AVISDF: visible, diffuse albedo.
159 C ANIRDF: near infra-red, diffuse albedo.
160 C*******************************************************************
161
162 IMPLICIT NONE
163
164 INTEGER IRUN
165 _RL AVISDR (IRUN), ANIRDR (IRUN), AVISDF (IRUN), ANIRDF (IRUN)
166 _RL VLAI(IRUN),VGRN (IRUN), SNW(IRUN)
167 _RL ZTH(IRUN)
168 INTEGER ITYP (IRUN)
169
170 _RL ALVDRS, ALIDRS
171 _RL ALVDRDL, ALIDRDL
172 _RL ALVDRDD, ALIDRDD
173 _RL ALVDRI, ALIDRI
174 _RL minval
175 external minval
176
177 C Albedo of soil for visible direct solar radiation.
178 PARAMETER ( ALVDRS = 0.100 )
179 C Albedo of soil for infra-red direct solar radiation.
180 PARAMETER ( ALIDRS = 0.200 )
181 C Albedo of light desert for visible direct solar radiation.
182 PARAMETER ( ALVDRDL = 0.300 )
183 C Albedo of light desert for infra-red direct solar radiation.
184 PARAMETER ( ALIDRDL = 0.350 )
185 C Albedo of dark desert for visible direct solar radiation.
186 PARAMETER ( ALVDRDD = 0.250 )
187 C Albedo of dark desert for infra-red direct solar radiation.
188 PARAMETER ( ALIDRDD = 0.300 )
189 C Albedo of ice for visible direct solar radiation.
190 PARAMETER ( ALVDRI = 0.800 )
191 C Albedo of ice for infra-red direct solar radiation.
192 PARAMETER ( ALIDRI = 0.800 )
193
194 * --------------------------------------------------------------------------------------------
195
196 INTEGER NTYPS
197 INTEGER NLAI
198 _RL ZERO, ONE
199 _RL EPSLN, BLAI, DLAI
200 _RL ALATRM
201 PARAMETER (NLAI = 14 )
202 PARAMETER (EPSLN = 1.E-6)
203 PARAMETER (BLAI = 0.5)
204 PARAMETER (DLAI = 0.5)
205 PARAMETER (ZERO=0., ONE=1.0)
206 PARAMETER (ALATRM = BLAI + (NLAI - 1) * DLAI - EPSLN)
207 PARAMETER (NTYPS=10)
208
209
210 C ITYP: Vegetation type as follows:
211 C 1: BROADLEAF EVERGREEN TREES
212 C 2: BROADLEAF DECIDUOUS TREES
213 C 3: NEEDLELEAF TREES
214 C 4: GROUND COVER
215 C 5: BROADLEAF SHRUBS
216 C 6: DWARF TREES (TUNDRA)
217 C 7: BARE SOIL
218 C 8: LIGHT DESERT
219 C 9: GLACIER
220 C 10: DARK DESERT
221 C
222
223 INTEGER I, LAI
224 _RL FAC,GAMMA,BETA,ALPHA,DX,DY,ALA,GRN (2),SNWALB(4,NTYPS)
225 _RL COEFF
226
227 _RL ALVDR (NLAI, 2, NTYPS)
228 _RL BTVDR (NLAI, 2, NTYPS)
229 _RL GMVDR (NLAI, 2, NTYPS)
230 _RL ALIDR (NLAI, 2, NTYPS)
231 _RL BTIDR (NLAI, 2, NTYPS)
232 _RL GMIDR (NLAI, 2, NTYPS)
233
234 C (Data statements for ALVDR described in full; data statements for
235 C other constants follow same framework.)
236
237 C BROADLEAF EVERGREEN (ITYP=4); GREEN=0.33; LAI: .5-7
238 DATA (ALVDR (I, 1, 1), I = 1, 14)
239 ` /0.0808, 0.0796, 0.0792, 0.0790, 10*0.0789/
240
241 C BROADLEAF EVERGREEN (ITYP=4); GREEN=0.67; LAI: .5-7
242 DATA (ALVDR (I, 2, 1), I = 1, 14)
243 ` /0.0788, 0.0775, 0.0771, 0.0769, 10*0.0768/
244
245 C BROADLEAF DECIDUOUS (ITYP=1); GREEN=0.33; LAI: .5-7
246 DATA (ALVDR (I, 1, 2), I = 1, 14)
247 ` /0.0803, 0.0790, 0.0785, 0.0784, 3*0.0783, 7*0.0782/
248
249 C BROADLEAF DECIDUOUS (ITYP=1); GREEN=0.67; LAI: .5-7
250 DATA (ALVDR (I, 2, 2), I = 1, 14)
251 ` /0.0782, 0.0770, 0.0765, 0.0763, 10*0.0762/
252
253 C NEEDLELEAF (ITYP=3); GREEN=0.33; LAI=.5-7
254 DATA (ALVDR (I, 1, 3), I = 1, 14)
255 ` /0.0758, 0.0746, 0.0742, 0.0740, 10*0.0739/
256
257 C NEEDLELEAF (ITYP=3); GREEN=0.67; LAI=.5-7
258 DATA (ALVDR (I, 2, 3), I = 1, 14)
259 ` /0.0683, 0.0672, 0.0667, 2*0.0665, 9*0.0664/
260
261 C GROUNDCOVER (ITYP=2); GREEN=0.33; LAI=.5-7
262 DATA (ALVDR (I, 1, 4), I = 1, 14)
263 ` /0.2436, 0.2470, 0.2486, 0.2494, 0.2498, 0.2500, 2*0.2501,
264 ` 6*0.2502
265 ` /
266 C GROUNDCOVER (ITYP=2); GREEN=0.67; LAI=.5-7
267 DATA (ALVDR (I, 2, 4), I = 1, 14) /14*0.1637/
268
269 C BROADLEAF SHRUBS (ITYP=5); GREEN=0.33,LAI=.5-7
270 DATA (ALVDR (I, 1, 5), I = 1, 14)
271 & /0.0807, 0.0798, 0.0794, 0.0792, 0.0792, 9*0.0791/
272
273 C BROADLEAF SHRUBS (ITYP=5); GREEN=0.67,LAI=.5-7
274 DATA (ALVDR (I, 2, 5), I = 1, 14)
275 & /0.0787, 0.0777, 0.0772, 0.0771, 10*0.0770/
276
277 C DWARF TREES, OR TUNDRA (ITYP=6); GREEN=0.33,LAI=.5-7
278 DATA (ALVDR (I, 1, 6), I = 1, 14)
279 & /0.0802, 0.0791, 0.0787, 0.0786, 10*0.0785/
280
281 C DWARF TREES, OR TUNDRA (ITYP=6); GREEN=0.67,LAI=.5-7
282 DATA (ALVDR (I, 2, 6), I = 1, 14)
283 & /0.0781, 0.0771, 0.0767, 0.0765, 0.0765, 9*0.0764/
284
285
286 C BARE SOIL
287 DATA (ALVDR (I, 1, 7), I = 1, 14) /14*ALVDRS/
288 DATA (ALVDR (I, 2, 7), I = 1, 14) /14*ALVDRS/
289
290 C LIGHT DESERT (SAHARA, EG)
291 DATA (ALVDR (I, 1, 8), I = 1, 14) /14*ALVDRDL/
292 DATA (ALVDR (I, 2, 8), I = 1, 14) /14*ALVDRDL/
293
294 C ICE
295 DATA (ALVDR (I, 1, 9), I = 1, 14) /14*ALVDRI/
296 DATA (ALVDR (I, 2, 9), I = 1, 14) /14*ALVDRI/
297
298 C DARK DESERT (AUSTRALIA, EG)
299 DATA (ALVDR (I, 1, 10), I = 1, 14) /14*ALVDRDD/
300 DATA (ALVDR (I, 2, 10), I = 1, 14) /14*ALVDRDD/
301 C****
302 C**** -------------------------------------------------
303 DATA (BTVDR (I, 1, 1), I = 1, 14)
304 ` /0.0153, 0.0372, 0.0506, 0.0587, 0.0630, 0.0652, 0.0663,
305 ` 0.0668, 0.0671, 0.0672, 4*0.0673
306 ` /
307 DATA (BTVDR (I, 2, 1), I = 1, 14)
308 * /0.0135, 0.0354, 0.0487, 0.0568, 0.0611, 0.0633, 0.0644,
309 ` 0.0650, 0.0652, 0.0654, 0.0654, 3*0.0655
310 ` /
311 DATA (BTVDR (I, 1, 2), I = 1, 14)
312 * /0.0148, 0.0357, 0.0462, 0.0524, 0.0554, 0.0569, 0.0576,
313 ` 0.0579, 0.0580, 0.0581, 0.0581, 3*0.0582
314 ` /
315 DATA (BTVDR (I, 2, 2), I = 1, 14)
316 * /0.0131, 0.0342, 0.0446, 0.0508, 0.0539, 0.0554, 0.0560,
317 ` 0.0564, 0.0565, 5*0.0566
318 ` /
319 DATA (BTVDR (I, 1, 3), I = 1, 14)
320 * /0.0108, 0.0334, 0.0478, 0.0571, 0.0624, 0.0652, 0.0666,
321 ` 0.0673, 0.0677, 0.0679, 4*0.0680
322 ` /
323 DATA (BTVDR (I, 2, 3), I = 1, 14)
324 * /0.0034, 0.0272, 0.0408, 0.0501, 0.0554, 0.0582, 0.0597,
325 * 0.0604, 0.0608, 0.0610, 4*0.0611
326 ` /
327 DATA (BTVDR (I, 1, 4), I = 1, 14)
328 * /0.2050, 0.2524, 0.2799, 0.2947, 0.3022, 0.3059, 0.3076,
329 * 0.3085, 0.3088, 0.3090, 4*0.3091
330 ` /
331 DATA (BTVDR (I, 2, 4), I = 1, 14)
332 * /0.1084, 0.1404, 0.1617, 0.1754, 0.1837, 0.1887, 0.1915,
333 * 0.1931, 0.1940, 0.1946, 0.1948, 0.1950, 2*0.1951
334 ` /
335 DATA (BTVDR (I, 1, 5), I = 1, 14)
336 & /0.0203, 0.0406, 0.0548, 0.0632, 0.0679, 0.0703, 0.0716,
337 & 0.0722, 0.0726, 0.0727, 0.0728, 0.0728, 0.0728, 0.0729
338 ` /
339
340 DATA (BTVDR (I, 2, 5), I = 1, 14)
341 & /0.0184, 0.0385, 0.0526, 0.0611, 0.0658, 0.0683, 0.0696,
342 & 0.0702, 0.0705, 0.0707, 4*0.0708
343 ` /
344
345 DATA (BTVDR (I, 1, 6), I = 1, 14)
346 & /0.0199, 0.0388, 0.0494, 0.0554, 0.0584, 0.0599, 0.0606,
347 & 0.0609, 0.0611, 5*0.0612
348 ` /
349
350 DATA (BTVDR (I, 2, 6), I = 1, 14)
351 & /0.0181, 0.0371, 0.0476, 0.0537, 0.0568, 0.0583, 0.0590,
352 & 0.0593, 0.0595, 0.0595, 4*0.0596
353 ` /
354
355 DATA (BTVDR (I, 1, 7), I = 1, 14) /14*0./
356 DATA (BTVDR (I, 2, 7), I = 1, 14) /14*0./
357
358 DATA (BTVDR (I, 1, 8), I = 1, 14) /14*0./
359 DATA (BTVDR (I, 2, 8), I = 1, 14) /14*0./
360
361 DATA (BTVDR (I, 1, 9), I = 1, 14) /14*0./
362 DATA (BTVDR (I, 2, 9), I = 1, 14) /14*0./
363
364 DATA (BTVDR (I, 1, 10), I = 1, 14) /14*0./
365 DATA (BTVDR (I, 2, 10), I = 1, 14) /14*0./
366
367 C****
368 C**** -----------------------------------------------------------
369 DATA (GMVDR (I, 1, 1), I = 1, 14)
370 ` /0.0814, 0.1361, 0.2078, 0.2650, 0.2986, 0.3169, 0.3265,
371 * 0.3313, 0.3337, 0.3348, 0.3354, 0.3357, 2*0.3358
372 ` /
373 DATA (GMVDR (I, 2, 1), I = 1, 14)
374 * /0.0760, 0.1336, 0.2034, 0.2622, 0.2969, 0.3159, 0.3259,
375 * 0.3309, 0.3333, 0.3346, 0.3352, 0.3354, 2*0.3356
376 ` /
377 DATA (GMVDR (I, 1, 2), I = 1, 14)
378 * /0.0834, 0.1252, 0.1558, 0.1927, 0.2131, 0.2237, 0.2290,
379 * 0.2315, 0.2327, 0.2332, 0.2335, 2*0.2336, 0.2337
380 ` /
381 DATA (GMVDR (I, 2, 2), I = 1, 14)
382 * /0.0789, 0.1235, 0.1531, 0.1912, 0.2122, 0.2232, 0.2286,
383 * 0.2312, 0.2324, 0.2330, 0.2333, 0.2334, 2*0.2335
384 ` /
385 DATA (GMVDR (I, 1, 3), I = 1, 14)
386 * /0.0647, 0.1342, 0.2215, 0.2968, 0.3432, 0.3696, 0.3838,
387 * 0.3912, 0.3950, 0.3968, 0.3978, 0.3982, 0.3984, 0.3985
388 ` /
389 DATA (GMVDR (I, 2, 3), I = 1, 14)
390 * /0.0258, 0.1227, 0.1999, 0.2825, 0.3339, 0.3634, 0.3794,
391 * 0.3877, 0.3919, 0.3940, 0.3950, 0.3956, 0.3958, 0.3959
392 ` /
393 DATA (GMVDR (I, 1, 4), I = 1, 14)
394 * /0.3371, 0.5762, 0.7159, 0.7927, 0.8324, 0.8526, 0.8624,
395 * 0.8671, 0.8693, 0.8704, 0.8709, 0.8710, 2*0.8712
396 ` /
397 DATA (GMVDR (I, 2, 4), I = 1, 14)
398 * /0.2634, 0.4375, 0.5532, 0.6291, 0.6763, 0.7048, 0.7213,
399 * 0.7310, 0.7363, 0.7395, 0.7411, 0.7420, 0.7426, 0.7428
400 ` /
401 DATA (GMVDR (I, 1, 5), I = 1, 14)
402 & /0.0971, 0.1544, 0.2511, 0.3157, 0.3548, 0.3768, 0.3886,
403 & 0.3948, 0.3978, 0.3994, 0.4001, 0.4006, 0.4007, 0.4008
404 ` /
405
406 DATA (GMVDR (I, 2, 5), I = 1, 14)
407 & /0.0924, 0.1470, 0.2458, 0.3123, 0.3527, 0.3756, 0.3877,
408 & 0.3942, 0.3974, 0.3990, 0.3998, 0.4002, 0.4004, 0.4005
409 ` /
410
411 DATA (GMVDR (I, 1, 6), I = 1, 14)
412 & /0.0970, 0.1355, 0.1841, 0.2230, 0.2447, 0.2561, 0.2617,
413 & 0.2645, 0.2658, 0.2664, 0.2667, 3*0.2669
414 ` /
415
416 DATA (GMVDR (I, 2, 6), I = 1, 14)
417 & /0.0934, 0.1337, 0.1812, 0.2213, 0.2437, 0.2554, 0.2613,
418 & 0.2642, 0.2656, 0.2662, 0.2665, 0.2667, 0.2667, 0.2668
419 ` /
420
421 DATA (GMVDR (I, 1, 7), I = 1, 14) /14*1./
422 DATA (GMVDR (I, 2, 7), I = 1, 14) /14*1./
423
424 DATA (GMVDR (I, 1, 8), I = 1, 14) /14*1./
425 DATA (GMVDR (I, 2, 8), I = 1, 14) /14*1./
426
427 DATA (GMVDR (I, 1, 9), I = 1, 14) /14*1./
428 DATA (GMVDR (I, 2, 9), I = 1, 14) /14*1./
429
430 DATA (GMVDR (I, 1, 10), I = 1, 14) /14*1./
431 DATA (GMVDR (I, 2, 10), I = 1, 14) /14*1./
432
433 C****
434 C**** -----------------------------------------------------------
435
436 DATA (ALIDR (I, 1, 1), I = 1, 14)
437 * /0.2867, 0.2840, 0.2828, 0.2822, 0.2819, 0.2818, 2*0.2817,
438 * 6*0.2816
439 ` /
440 DATA (ALIDR (I, 2, 1), I = 1, 14)
441 * /0.3564, 0.3573, 0.3577, 0.3580, 2*0.3581, 8*0.3582/
442 DATA (ALIDR (I, 1, 2), I = 1, 14)
443 * /0.2848, 0.2819, 0.2804, 0.2798, 0.2795, 2*0.2793, 7*0.2792/
444 DATA (ALIDR (I, 2, 2), I = 1, 14)
445 * /0.3544, 0.3550, 0.3553, 2*0.3555, 9*0.3556/
446 DATA (ALIDR (I, 1, 3), I = 1, 14)
447 * /0.2350, 0.2311, 0.2293, 0.2285, 0.2281, 0.2280, 8*0.2279/
448 DATA (ALIDR (I, 2, 3), I = 1, 14)
449 * /0.2474, 0.2436, 0.2418, 0.2410, 0.2406, 0.2405, 3*0.2404,
450 * 5*0.2403
451 ` /
452 DATA (ALIDR (I, 1, 4), I = 1, 14)
453 * /0.5816, 0.6157, 0.6391, 0.6556, 0.6673, 0.6758, 0.6820,
454 * 0.6866, 0.6899, 0.6924, 0.6943, 0.6956, 0.6966, 0.6974
455 ` /
456 DATA (ALIDR (I, 2, 4), I = 1, 14)
457 * /0.5489, 0.5770, 0.5955, 0.6079, 0.6163, 0.6221, 0.6261,
458 * 0.6288, 0.6308, 0.6321, 0.6330, 0.6337, 0.6341, 0.6344
459 ` /
460 DATA (ALIDR (I, 1, 5), I = 1, 14)
461 & /0.2845, 0.2837, 0.2832, 0.2831, 0.2830, 9*0.2829/
462 DATA (ALIDR (I, 2, 5), I = 1, 14)
463 & /0.3532, 0.3562, 0.3578, 0.3586, 0.3590, 0.3592, 0.3594,
464 & 0.3594, 0.3594, 5*0.3595
465 ` /
466 DATA (ALIDR (I, 1, 6), I = 1, 14)
467 & /0.2825, 0.2812, 0.2806, 0.2803, 0.2802, 9*0.2801/
468 DATA (ALIDR (I, 2, 6), I = 1, 14)
469 & /0.3512, 0.3538, 0.3552, 0.3559, 0.3562, 0.3564, 0.3565,
470 & 0.3565, 6*0.3566
471 ` /
472
473 DATA (ALIDR (I, 1, 7), I = 1, 14) /14*ALIDRS/
474 DATA (ALIDR (I, 2, 7), I = 1, 14) /14*ALIDRS/
475
476 DATA (ALIDR (I, 1, 8), I = 1, 14) /14*ALIDRDL/
477 DATA (ALIDR (I, 2, 8), I = 1, 14) /14*ALIDRDL/
478
479 DATA (ALIDR (I, 1, 9), I = 1, 14) /14*ALIDRI/
480 DATA (ALIDR (I, 2, 9), I = 1, 14) /14*ALIDRI/
481
482 DATA (ALIDR (I, 1, 10), I = 1, 14) /14*ALIDRDD/
483 DATA (ALIDR (I, 2, 10), I = 1, 14) /14*ALIDRDD/
484
485 C****
486 C**** -----------------------------------------------------------
487 DATA (BTIDR (I, 1, 1), I = 1, 14)
488 * /0.1291, 0.1707, 0.1969, 0.2125, 0.2216, 0.2267, 0.2295,
489 * 0.2311, 0.2319, 0.2323, 0.2326, 2*0.2327, 0.2328
490 ` /
491 DATA (BTIDR (I, 2, 1), I = 1, 14)
492 * /0.1939, 0.2357, 0.2598, 0.2735, 0.2810, 0.2851, 0.2874,
493 * 0.2885, 0.2892, 0.2895, 0.2897, 3*0.2898
494 ` /
495 DATA (BTIDR (I, 1, 2), I = 1, 14)
496 * /0.1217, 0.1522, 0.1713, 0.1820, 0.1879, 0.1910, 0.1926,
497 * 0.1935, 0.1939, 0.1942, 2*0.1943, 2*0.1944
498 ` /
499 DATA (BTIDR (I, 2, 2), I = 1, 14)
500 * /0.1781, 0.2067, 0.2221, 0.2301, 0.2342, 0.2363, 0.2374,
501 * 0.2379, 0.2382, 0.2383, 2*0.2384, 2*0.2385
502 ` /
503 DATA (BTIDR (I, 1, 3), I = 1, 14)
504 * /0.0846, 0.1299, 0.1614, 0.1814, 0.1935, 0.2004, 0.2043,
505 * 0.2064, 0.2076, 0.2082, 0.2085, 2*0.2087, 0.2088
506 ` /
507 DATA (BTIDR (I, 2, 3), I = 1, 14)
508 * /0.0950, 0.1410, 0.1722, 0.1921, 0.2042, 0.2111, 0.2151,
509 * 0.2172, 0.2184, 0.2191, 0.2194, 0.2196, 2*0.2197
510 ` /
511 DATA (BTIDR (I, 1, 4), I = 1, 14)
512 * /0.5256, 0.7444, 0.9908, 1.2700, 1.5680, 1.8505, 2.0767,
513 * 2.2211, 2.2808, 2.2774, 2.2362, 2.1779, 2.1160, 2.0564
514 ` /
515 DATA (BTIDR (I, 2, 4), I = 1, 14)
516 * /0.4843, 0.6714, 0.8577, 1.0335, 1.1812, 1.2858, 1.3458,
517 * 1.3688, 1.3685, 1.3546, 1.3360, 1.3168, 1.2989, 1.2838
518 ` /
519 DATA (BTIDR (I, 1, 5), I = 1, 14)
520 & /0.1498, 0.1930, 0.2201, 0.2364, 0.2460, 0.2514, 0.2544,
521 & 0.2560, 0.2569, 0.2574, 0.2577, 0.2578, 0.2579, 0.2579
522 ` /
523
524 DATA (BTIDR (I, 2, 5), I = 1, 14)
525 & /0.2184, 0.2656, 0.2927, 0.3078, 0.3159, 0.3202, 0.3224,
526 & 0.3235, 0.3241, 0.3244, 0.3245, 3*0.3246
527 ` /
528
529 DATA (BTIDR (I, 1, 6), I = 1, 14)
530 & /0.1369, 0.1681, 0.1860, 0.1958, 0.2010, 0.2038, 0.2053,
531 & 0.2060, 0.2064, 0.2066, 0.2067, 3*0.2068
532 ` /
533
534 DATA (BTIDR (I, 2, 6), I = 1, 14)
535 & /0.1969, 0.2268, 0.2416, 0.2488, 0.2521, 0.2537, 0.2544,
536 & 0.2547, 0.2548, 5*0.2549
537 ` /
538
539
540 DATA (BTIDR (I, 1, 7), I = 1, 14) /14*0./
541 DATA (BTIDR (I, 2, 7), I = 1, 14) /14*0./
542
543 DATA (BTIDR (I, 1, 8), I = 1, 14) /14*0./
544 DATA (BTIDR (I, 2, 8), I = 1, 14) /14*0./
545
546 DATA (BTIDR (I, 1, 9), I = 1, 14) /14*0./
547 DATA (BTIDR (I, 2, 9), I = 1, 14) /14*0./
548
549 DATA (BTIDR (I, 1, 10), I = 1, 14) /14*0./
550 DATA (BTIDR (I, 2, 10), I = 1, 14) /14*0./
551
552 C****
553 C**** --------------------------------------------------------------
554 DATA (GMIDR (I, 1, 1), I = 1, 14)
555 * /0.1582, 0.2581, 0.3227, 0.3635, 0.3882, 0.4026, 0.4108,
556 * 0.4154, 0.4179, 0.4193, 0.4200, 0.4204, 0.4206, 0.4207
557 ` /
558 DATA (GMIDR (I, 2, 1), I = 1, 14)
559 * /0.1934, 0.3141, 0.3818, 0.4200, 0.4415, 0.4533, 0.4598,
560 * 0.4633, 0.4651, 0.4662, 0.4667, 0.4671, 2*0.4672
561 ` /
562 DATA (GMIDR (I, 1, 2), I = 1, 14)
563 * /0.1347, 0.1871, 0.2277, 0.2515, 0.2651, 0.2727, 0.2768,
564 * 0.2790, 0.2801, 0.2808, 0.2811, 0.2812, 0.2813, 0.2814
565 ` /
566 DATA (GMIDR (I, 2, 2), I = 1, 14)
567 * /0.1440, 0.2217, 0.2629, 0.2839, 0.2947, 0.3003, 0.3031,
568 * 0.3046, 0.3054, 0.3058, 0.3060, 2*0.3061, 0.3062
569 ` /
570 DATA (GMIDR (I, 1, 3), I = 1, 14)
571 * /0.1372, 0.2368, 0.3235, 0.3839, 0.4229, 0.4465, 0.4602,
572 * 0.4679, 0.4722, 0.4745, 0.4758, 0.4764, 0.4768, 0.4770
573 ` /
574 DATA (GMIDR (I, 2, 3), I = 1, 14)
575 * /0.1435, 0.2524, 0.3370, 0.3955, 0.4332, 0.4563, 0.4697,
576 * 0.4773, 0.4815, 0.4839, 0.4851, 0.4858, 0.4861, 0.4863
577 ` /
578 DATA (GMIDR (I, 1, 4), I = 1, 14)
579 * /0.4298, 0.9651, 1.6189, 2.4084, 3.2992, 4.1928, 4.9611,
580 * 5.5095, 5.8085, 5.9069, 5.8726, 5.7674, 5.6346, 5.4944
581 ` /
582 DATA (GMIDR (I, 2, 4), I = 1, 14)
583 * /0.4167, 0.8974, 1.4160, 1.9414, 2.4147, 2.7803, 3.0202,
584 * 3.1468, 3.1954, 3.1932, 3.1676, 3.1328, 3.0958, 3.0625
585 ` /
586 DATA (GMIDR (I, 1, 5), I = 1, 14)
587 & /0.1959, 0.3203, 0.3985, 0.4472, 0.4766, 0.4937, 0.5034,
588 & 0.5088, 0.5117, 0.5134, 0.5143, 0.5147, 0.5150, 0.5152
589 ` /
590
591 DATA (GMIDR (I, 2, 5), I = 1, 14)
592 & /0.2328, 0.3859, 0.4734, 0.5227, 0.5498, 0.5644, 0.5720,
593 & 0.5761, 0.5781, 0.5792, 0.5797, 0.5800, 0.5802, 0.5802
594 ` /
595
596 DATA (GMIDR (I, 1, 6), I = 1, 14)
597 & /0.1447, 0.2244, 0.2698, 0.2953, 0.3094, 0.3170, 0.3211,
598 & 0.3233, 0.3244, 0.3250, 0.3253, 0.3255, 0.3256, 0.3256
599 ` /
600
601 DATA (GMIDR (I, 2, 6), I = 1, 14)
602 & /0.1643, 0.2624, 0.3110, 0.3347, 0.3461, 0.3517, 0.3543,
603 & 0.3556, 0.3562, 0.3564, 0.3565, 0.3566, 0.3566, 0.3566
604 ` /
605
606 DATA (GMIDR (I, 1, 7), I = 1, 14) /14*1./
607 DATA (GMIDR (I, 2, 7), I = 1, 14) /14*1./
608
609 DATA (GMIDR (I, 1, 8), I = 1, 14) /14*1./
610 DATA (GMIDR (I, 2, 8), I = 1, 14) /14*1./
611
612 DATA (GMIDR (I, 1, 9), I = 1, 14) /14*1./
613 DATA (GMIDR (I, 2, 9), I = 1, 14) /14*1./
614
615 DATA (GMIDR (I, 1, 10), I = 1, 14) /14*1./
616 DATA (GMIDR (I, 2, 10), I = 1, 14) /14*1./
617
618
619 C**** -----------------------------------------------------------
620
621 DATA GRN /0.33, 0.67/
622
623 #include "snwmid.h"
624 DATA SNWALB /.65, .38, .65, .38,
625 * .65, .38, .65, .38,
626 * .65, .38, .65, .38,
627 * .65, .38, .65, .38,
628 * .65, .38, .65, .38,
629 & .65, .38, .65, .38,
630 & .65, .38, .65, .38,
631 & .65, .38, .65, .38,
632 & .80, .60, .80, .60,
633 & .65, .38, .65, .38
634 ` /
635
636 #ifdef CRAY
637 #ifdef f77
638 cfpp$ expand (coeff)
639 #endif
640 #endif
641
642 DO 100 I=1,IRUN
643 ALA = MIN (MAX (ZERO, VLAI(I)), ALATRM)
644 LAI = 1 + MAX(0, INT((ALA-BLAI)/DLAI) )
645 DX = (ALA - (BLAI+(LAI-1)*DLAI)) * (ONE/DLAI)
646 DY = (VGRN(I)- GRN(1)) * (ONE/(GRN(2) - GRN(1)))
647
648 ALPHA = COEFF (ALVDR (1, 1, ITYP (I)), NLAI, LAI ,DX, DY)
649 BETA = COEFF (BTVDR (1, 1, ITYP (I)), NLAI, LAI ,DX, DY)
650 GAMMA = COEFF (GMVDR (1, 1, ITYP (I)), NLAI, LAI ,DX, DY)
651
652 AVISDR(I) = ALPHA - ZTH(I)*BETA / (GAMMA+ZTH(I))
653 AVISDF(I) = ALPHA-BETA
654 * + 2.*BETA*GAMMA*(1.-GAMMA*LOG((1.+GAMMA)/GAMMA))
655
656 ALPHA = COEFF (ALIDR (1, 1, ITYP (I)), NLAI, LAI ,DX, DY)
657 BETA = COEFF (BTIDR (1, 1, ITYP (I)), NLAI, LAI ,DX, DY)
658 GAMMA = COEFF (GMIDR (1, 1, ITYP (I)), NLAI, LAI ,DX, DY)
659
660 ANIRDR(I) = ALPHA - ZTH(I)*BETA / (GAMMA+ZTH(I))
661 ANIRDF(I) = ALPHA-BETA
662 * + 2.*BETA*GAMMA*(1.-GAMMA*LOG((1.+GAMMA)/GAMMA))
663
664 IF (SNW (I) .GT. ZERO) THEN
665 FAC = SNW(I) / (SNW(I) + SNWMID(ITYP(I)))
666
667 AVISDR(I) = AVISDR(I) + (SNWALB(1,ITYP(I)) - AVISDR(I)) * FAC
668 ANIRDR(I) = ANIRDR(I) + (SNWALB(2,ITYP(I)) - ANIRDR(I)) * FAC
669 AVISDF(I) = AVISDF(I) + (SNWALB(3,ITYP(I)) - AVISDF(I)) * FAC
670 ANIRDF(I) = ANIRDF(I) + (SNWALB(4,ITYP(I)) - ANIRDF(I)) * FAC
671 ENDIF
672
673 100 CONTINUE
674
675 RETURN
676 END
677 FUNCTION COEFF(TABLE, NTABL, LAI ,DX, DY)
678
679 INTEGER NTABL, LAI
680 _RL coeff
681 _RL TABLE (NTABL, 2), DX, DY
682
683 COEFF = (TABLE(LAI, 1)
684 * + (TABLE(LAI ,2) - TABLE(LAI ,1)) * DY ) * (1.0-DX)
685 * + (TABLE(LAI+1,1)
686 * + (TABLE(LAI+1,2) - TABLE(LAI+1,1)) * DY ) * DX
687
688 RETURN
689 END
690
691 SUBROUTINE GETLGR(sec,IMON,IDAY,ALAT,ITYP,NCHPS,nchpdim,
692 . nSx,nSy,bi,bj,ALAI,AGRN)
693 C*********************************************************************
694 implicit none
695
696 integer ntyps
697 _RL one,daylen
698 PARAMETER (NTYPS=10)
699 parameter (one = 1.)
700 parameter (daylen = 86400.)
701
702 integer sec, imon, iday, nchps, nchpdim, nSx, nSy, bi, bj
703 _RL ALAI(nchpdim,nSx,nSy), AGRN(nchpdim,nSx,nSy)
704 _RL ALAT(nchpdim)
705 integer ITYP(nchpdim,nSx,nSy)
706
707 integer i,midmon,midm,midp,id,k1,k2,kk1,kk2
708 _RL fac
709
710 INTEGER DAYS(12)
711 DATA DAYS/31,28,31,30,31,30,31,31,30,31,30,31/
712
713 _RL VGLA(12,NTYPS), VGGR(12,NTYPS)
714
715 DATA VGLA /
716 1 5.117, 5.117, 5.117, 5.117, 5.117, 5.117, 5.117, 5.117,
717 1 5.117, 5.117, 5.117, 5.117,
718 2 0.520, 0.520, 0.867, 2.107, 4.507, 6.773, 7.173, 6.507,
719 2 5.040, 2.173, 0.867, 0.520,
720 3 8.760, 9.160, 9.827,10.093,10.360,10.760,10.493,10.227,
721 3 10.093, 9.827, 9.160, 8.760,
722 4 0.782, 0.893, 1.004, 1.116, 1.782, 3.671, 4.782, 4.227,
723 4 2.004, 1.227, 1.004, 0.893,
724 5 3.760, 3.760, 2.760, 1.760, 1.760, 1.760, 1.760, 5.760,
725 5 10.760, 7.760, 4.760, 3.760,
726 6 0.739, 0.739, 0.739, 0.739, 0.739, 1.072, 5.072, 5.739,
727 6 4.405, 0.739, 0.739, 0.739,
728 7 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001,
729 7 0.001, 0.001, 0.001, 0.001,
730 8 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001,
731 8 0.001, 0.001, 0.001, 0.001,
732 9 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001,
733 9 0.001, 0.001, 0.001, 0.001,
734 1 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001,
735 1 0.001, 0.001, 0.001, 0.001
736 & /
737
738
739 DATA VGGR
740 1 /0.905, 0.905, 0.905, 0.905, 0.905, 0.905, 0.905, 0.905,
741 1 0.905, 0.905, 0.905, 0.905,
742 2 0.026, 0.026, 0.415, 0.759, 0.888, 0.925, 0.836, 0.697,
743 2 0.331, 0.166, 0.015, 0.026,
744 3 0.913, 0.917, 0.923, 0.925, 0.927, 0.905, 0.902, 0.913,
745 3 0.898, 0.855, 0.873, 0.913,
746 4 0.568, 0.622, 0.664, 0.697, 0.810, 0.908, 0.813, 0.394,
747 4 0.443, 0.543, 0.553, 0.498,
748 5 0.798, 0.532, 0.362, 0.568, 0.568, 0.568, 0.568, 0.868,
749 5 0.651, 0.515, 0.630, 0.798,
750 6 0.451, 0.451, 0.451, 0.451, 0.451, 0.622, 0.920, 0.697,
751 6 0.076, 0.451, 0.451, 0.451,
752 7 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001,
753 7 0.001, 0.001, 0.001, 0.001,
754 8 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001,
755 8 0.001, 0.001, 0.001, 0.001,
756 9 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001,
757 9 0.001, 0.001, 0.001, 0.001,
758 1 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001,
759 1 0.001, 0.001, 0.001, 0.001
760 & /
761
762
763 MIDMON = DAYS(IMON)/2 + 1
764
765
766 IF (IDAY .LT. MIDMON) THEN
767 K2 = IMON
768 K1 = MOD(IMON+10,12) + 1
769 ELSE
770 K1 = IMON
771 K2 = MOD(IMON,12) + 1
772 ENDIF
773
774 IF (IDAY .LT. MIDMON) THEN
775 MIDM = DAYS(K1)/2 + 1
776 MIDP = DAYS(K1) + MIDMON
777 ID = IDAY + DAYS(K1)
778 ELSE
779 MIDM = MIDMON
780 MIDP = DAYS(K2)/2 + 1 + DAYS(K1)
781 ID = IDAY
782 ENDIF
783
784 FAC = (float(ID -MIDM)*DAYLEN + SEC) /
785 * (float(MIDP-MIDM)*DAYLEN )
786
787 DO 220 I=1,NCHPS
788
789 IF(ALAT(I).GT.0.) THEN
790 KK1 = K1
791 KK2 = K2
792 ELSE
793 KK1 = MOD(K1+5,12) + 1
794 KK2 = MOD(K2+5,12) + 1
795 ENDIF
796
797 ALAI(I,bi,bj) = VGLA(KK2,ITYP(I,bi,bj))*FAC+
798 . VGLA(KK1,ITYP(I,bi,bj))*(ONE-FAC)
799 AGRN(I,bi,bj) = VGGR(KK2,ITYP(I,bi,bj))*FAC+
800 . VGGR(KK1,ITYP(I,bi,bj))*(ONE-FAC)
801
802 220 CONTINUE
803
804 RETURN
805 END
806
807 subroutine getalb(sec,month,day,cosz,snodep,fraci,fracg,im,jm,
808 . nchp,nchptot,nchpland,nSx,nSy,bi,bj,igrd,ityp,chfr,chlt,
809 . alai,agrn,albvr,albvf,albnr,albnf)
810 C***********************************************************************
811 C PURPOSE
812 C To act as an interface to routine sibalb, which calculates
813 C the four albedos for use by the shortwave radiation routine
814 C
815 C INPUT:
816 C sec - number of seconds into the day of current time
817 C month - month of the year of current time
818 C day - day of the month of current time
819 C cosz - local cosine of the zenith angle [im,jm]
820 C snodep - snow cover in meters [nchp,nSx,nSy]
821 C fraci - real array in grid space of total sea ice fraction [im,jm]
822 C fracg - real array in grid space of total land fraction [im,jm]
823 C im - model grid longitude dimension
824 C jm - model grid latitude dimension (number of lat. points)
825 C nchp - integer actual number of tiles in tile space
826 C nchpland - integer number of land tiles
827 C nSx - number of processors in x-direction
828 C nSy - number of processors in y-direction
829 C bi - processors index in x-direction
830 C bj - processors index in y-direction
831 C igrd - integer array in tile space of grid point number for each
832 C tile [nchp,nSx,nSy]
833 C ityp - integer array in tile space of land surface type for each
834 C tile [nchp,nSx,nSy]
835 C chfr - real array in tile space of land surface type fraction for
836 C each tile [nchp,nSx,nSy]
837 C chlt - real array in tile space of latitude value for each tile
838 C [nchp,nSx,nSy]
839 C
840 C OUTPUT:
841 C albvr - real array [im,jm] of visible direct beam albedo
842 C albvf - real array [im,jm] of visible diffuse beam albedo
843 C albnr - real array [im,jm] of near-ir direct beam albedo
844 C albnf - real array [im,jm] of near-ir diffuse beam albedo
845 C
846 C***********************************************************************
847 implicit none
848
849 integer sec,month,day,im,jm,nchp,nchptot,nchpland,nSx,nSy,bi,bj
850 _RL cosz(im,jm),fraci(im,jm),fracg(im,jm)
851 _RL snodep(nchp,nSx,nSy),chfr(nchp,nSx,nSy),chlt(nchp,nSx,nSy)
852 integer igrd(nchp,nSx,nSy),ityp(nchp,nSx,nSy)
853 _RL alai(nchp,nSx,nSy),agrn(nchp,nSx,nSy)
854 _RL albvr(im,jm,nSx,nSy),albvf(im,jm,nSx,nSy)
855 _RL albnr(im,jm,nSx,nSy),albnf(im,jm,nSx,nSy)
856
857 _RL one,a0,a1,a2,a3,ocnalb,albsi
858 PARAMETER (one = 1.)
859 PARAMETER (A0= 0.40670980)
860 PARAMETER (A1=-1.2523634 )
861 PARAMETER (A2= 1.4224051 )
862 PARAMETER (A3=-0.55573341)
863 PARAMETER (OCNALB=0.08)
864 PARAMETER (ALBSI=0.7)
865
866 _RL alboc(im,jm)
867 _RL AVISDR(nchp),ANIRDR(nchp),AVISDF(nchp)
868 _RL ANIRDF(nchp)
869 _RL zenith(nchp)
870 _RL tmpij(im,jm)
871 integer i,j
872
873 DO I=1,IM
874 DO J=1,JM
875 ALBOC(I,J) = A0 + (A1 + (A2 + A3*cosz(I,J))*cosz(I,J))*cosz(I,J)
876 ALBVR(I,J,bi,bj) = ALBSI*FRACI(I,J) + ALBOC(I,J)*(ONE-FRACI(I,J))
877 ALBNR(I,J,bi,bj) = ALBVR(I,J,bi,bj)
878 ALBVF(I,J,bi,bj) = ALBSI * FRACI(I,J) + OCNALB * (ONE-FRACI(I,J))
879 ALBNF(I,J,bi,bj) = ALBVF(I,J,bi,bj)
880 ENDDO
881 ENDDO
882
883 C and now some conversions from grid space to tile space before sibalb
884
885 call grd2msc(cosz,im,jm,igrd,zenith,nchp,nchpland)
886
887 C and now call sibalb
888
889 call sibalb(avisdr,anirdr,avisdf,anirdf,alai(1,bi,bj),
890 . agrn(1,bi,bj),zenith,snodep(1,bi,bj),ityp(1,bi,bj),nchpland)
891
892 C finally some transformations back to grid space for albedos
893
894 DO I=1,IM
895 DO J=1,JM
896 tmpij(i,j) = albvr(i,j,bi,bj)
897 ENDDO
898 ENDDO
899 call msc2grd(igrd(1,bi,bj),chfr(1,bi,bj),avisdr,nchp,nchpland,
900 . fracg,tmpij,im,jm)
901
902 DO I=1,IM
903 DO J=1,JM
904 albvr(i,j,bi,bj) = tmpij(i,j)
905 ENDDO
906 ENDDO
907 DO I=1,IM
908 DO J=1,JM
909 tmpij(i,j) = albvf(i,j,bi,bj)
910 ENDDO
911 ENDDO
912 call msc2grd(igrd(1,bi,bj),chfr(1,bi,bj),avisdf,nchp,nchpland,
913 . fracg,tmpij,im,jm)
914 DO I=1,IM
915 DO J=1,JM
916 albvf(i,j,bi,bj) = tmpij(i,j)
917 ENDDO
918 ENDDO
919 DO I=1,IM
920 DO J=1,JM
921 tmpij(i,j) = albnr(i,j,bi,bj)
922 ENDDO
923 ENDDO
924 call msc2grd(igrd(1,bi,bj),chfr(1,bi,bj),anirdr,nchp,nchpland,
925 . fracg,tmpij,im,jm)
926 DO I=1,IM
927 DO J=1,JM
928 albnr(i,j,bi,bj) = tmpij(i,j)
929 ENDDO
930 ENDDO
931 DO I=1,IM
932 DO J=1,JM
933 tmpij(i,j) = albnf(i,j,bi,bj)
934 ENDDO
935 ENDDO
936 call msc2grd(igrd(1,bi,bj),chfr(1,bi,bj),anirdf,nchp,nchpland,
937 . fracg,tmpij,im,jm)
938 DO I=1,IM
939 DO J=1,JM
940 albnf(i,j,bi,bj) = tmpij(i,j)
941 ENDDO
942 ENDDO
943
944 return
945 end
946
947 subroutine getemiss(fracg,im,jm,nchp,nchptot,nSx,nSy,bi,bj,
948 . igrd,ityp,chfr,snowdep,fraci,emiss)
949 C***********************************************************************
950 C PURPOSE
951 C To act as an interface to routine to emissivity, which calculates
952 C ten bands of surface emissivities for use by the longwave radiation
953 C
954 C INPUT:
955 C fracg - real array in grid space of total land fraction [im,jm]
956 C im - model grid longitude dimension
957 C jm - model grid latitude dimension (number of lat. points)
958 C nchp - integer actual number of tiles in tile space
959 C nSx - number of processors in x-direction
960 C nSy - number of processors in y-direction
961 C bi - processors index in x-direction
962 C bj - processors index in y-direction
963 C igrd - integer array in tile space of grid point number for each
964 C tile [nchp]
965 C ityp - integer array in tile space of land surface type for each
966 C tile [nchp]
967 C chfr - real array in tile space of land surface type fraction for
968 C each tile [nchp]
969 C snowdep - real array in tile space of snow depth (liquid water equiv)
970 C in mm [nchp]
971 C fraci - real array in tile space of sea ice fraction [nchp]
972 C
973 C OUTPUT:
974 C emiss - real array [im,jm,10,nSx,nSy] - surface emissivity (frac)
975 C
976 C***********************************************************************
977 implicit none
978 integer im,jm,nchp,nchptot,nSx,nSy,bi,bj
979 _RL fracg(im,jm)
980 _RL chfr(nchp,nSx,nSy)
981 integer igrd(nchp,nSx,nSy), ityp(nchp,nSx,nSy)
982 _RL snowdep(nchp,nSx,nSy)
983 _RL fraci(nchp)
984 _RL emiss(im,jm,10,nSx,nSy)
985
986 _RL emisstile(nchp,10)
987 _RL tmpij(im,jm)
988 integer i,j,k,n
989
990 do i = 1,10
991 do n = 1,nchptot
992 emisstile(n,i) = 1.
993 enddo
994 enddo
995
996 c call emissivity to get values in tile space
997 c -------------------------------------------
998 call emissivity(snowdep(1,bi,bj),fraci,nchp,nchptot,ityp(1,bi,bj),
999 . emisstile)
1000
1001 c transform back to grid space for emissivities
1002 c ---------------------------------------------
1003 do k = 1,10
1004 do j = 1,jm
1005 do i = 1,im
1006 tmpij(i,j) = 0.0
1007 enddo
1008 enddo
1009 call msc2grd(igrd(1,bi,bj),chfr(1,bi,bj),emisstile(1,k),nchp,
1010 . nchptot,fracg,tmpij,im,jm)
1011 do j = 1,jm
1012 do i = 1,im
1013 emiss(i,j,k,bi,bj) = tmpij(i,j)
1014 enddo
1015 enddo
1016 enddo
1017
1018 return
1019 end
1020
1021 subroutine emissivity (snowdepth,fraci,nchp,numpts,ityp,newemis)
1022 implicit none
1023 integer nchp,numpts
1024 integer ityp(nchp)
1025 _RL snowdepth(nchp)
1026 _RL fraci(nchp)
1027 _RL newemis(nchp,10)
1028
1029 _RL emis(12,11)
1030 _RL fac
1031 integer i,j
1032
1033 c-----------------------------------------------------------------------
1034 c NOTE: Emissivities were obtained for the following surface types:
1035 c ( 1) evergreen needleleaf = conifer
1036 c ( 2) evergreen broadleaf = conifer
1037 c ( 3) deciduous needleleaf = deciduous
1038 c ( 4) deciduous broadleaf = deciduous
1039 c ( 5) mixed forests = 1/2 conifer + 1/2 deciduous = tree
1040 c ( 6) closed shrublands = 3/4 tree + 1/4 quartz
1041 c ( 7) open shrubland = 1/4 tree + 3/4 quartz
1042 c ( 8) woody savannas = grass
1043 c ( 9) savannas = grass
1044 c (10) grasslands = grass
1045 c (11) permanent wetlands = 1/2 grass + 1/2 water
1046 c (12) croplands = grass
1047 c (13) urban = black body
1048 c (14) mosaic = 1/2 grass + 1/2 mixed forest
1049 c (15) snow/ice
1050 c (16) barren/sparsely vegetated = desert(quartz)
1051 c (17) water
1052 c (18) tundra = frost
1053 c
1054 c NOTE: Translation to Koster-Suarez surface types was as follows:
1055 c ( 1) broadleaf evergreen FROM above type 1 (conifer)
1056 c ( 2) broadleaf deciduous FROM above type 2 (deciduous)
1057 c ( 3) needleleaf evergreen FROM above type 1 (conifer)
1058 c ( 4) groundcover FROM above type 10 (grass)
1059 c ( 5) broadleaf shrubs FROM above type 6 (closed shrublands)
1060 c ( 6) dwarf trees (tundra) FROM above type 18 (tundra)
1061 c ( 7) bare soil FROM above type 16 (desert)
1062 c ( 8) light desert FROM above type 16 (desert)
1063 c ( 9) glacier FROM above type 15 (snow/ice)
1064 c ( 10) dark desert FROM above type 16 (desert)
1065 c (100) ocean FROM above type 17 (water)
1066 c
1067 c NOTE: snow-covered ground uses interpolated emissivities based on snow depth
1068 c =============================================================================
1069 c -----------------------------------------------------------------------------
1070 c Emmissivities for 12 bands in Fu/Liou
1071 c band 1: 4.5 - 5.3 um
1072 c band 2: 5.3 - 5.9 um
1073 c band 3: 5.9 - 7.1 um
1074 c band 4: 7.1 - 8.0 um
1075 c band 5: 8.0 - 9.1 um
1076 c band 6: 9.1 - 10.2 um
1077 c band 7: 10.2 - 12.5 um
1078 c band 8: 12.5 - 14.9 um
1079 c band 9: 14.9 - 18.5 um
1080 c band 10: 18.5 - 25.0 um
1081 c band 11: 25.0 - 35.7 um
1082 c band 12: 35.7 - oo um
1083 c
1084 c-------------------------------------------------------------------------
1085 data ((emis(i,j),i=1,12),j=1,11) /
1086 C evergreen needleleaf
1087 & 0.9891, 0.9892, 0.9900, 0.9914, 0.9908, 0.9903,
1088 & 0.9898, 0.9948, 1.0000, 1.0000, 1.0000, 1.0000,
1089 C deciduous needleleaf
1090 & 0.9849, 0.9856, 0.9841, 0.9831, 0.9789, 0.9805,
1091 & 0.9733, 0.9869, 1.0000, 1.0000, 1.0000, 1.0000,
1092 C evergreen needleleaf
1093 & 0.9891, 0.9892, 0.9900, 0.9914, 0.9908, 0.9903,
1094 & 0.9898, 0.9948, 1.0000, 1.0000, 1.0000, 1.0000,
1095 C grasslands
1096 & 0.9867, 0.9897, 0.9920, 0.9933, 0.9830, 0.9752,
1097 & 0.9853, 0.9928, 1.0000, 1.0000, 1.0000, 1.0000,
1098 C closed shrublands
1099 & 0.9490, 0.9697, 0.9738, 0.9712, 0.9474, 0.9582,
1100 & 0.9663, 0.9747, 0.9836, 0.9836, 0.9836, 0.9836,
1101 C tundra
1102 & 0.9469, 0.9670, 0.9883, 0.9795, 0.9751, 0.9767,
1103 & 0.9920, 0.9888, 0.9888, 0.9888, 0.9888, 0.9888,
1104 C barren
1105 & 0.8353, 0.9163, 0.9342, 0.9229, 0.8354, 0.8766,
1106 & 0.9210, 0.9262, 0.9345, 0.9345, 0.9345, 0.9345,
1107 C barren
1108 & 0.8353, 0.9163, 0.9342, 0.9229, 0.8354, 0.8766,
1109 & 0.9210, 0.9262, 0.9345, 0.9345, 0.9345, 0.9345,
1110 C snow/ice
1111 & 0.9998, 0.9998, 0.9998, 0.9998, 0.9998, 0.9999,
1112 & 0.9997, 0.9994, 0.9995, 0.9995, 0.9995, 0.9995,
1113 C barren
1114 & 0.8353, 0.9163, 0.9342, 0.9229, 0.8354, 0.8766,
1115 & 0.9210, 0.9262, 0.9345, 0.9345, 0.9345, 0.9345,
1116 C water
1117 & 0.9788, 0.9833, 0.9819, 0.9820, 0.9835, 0.9865,
1118 & 0.9886, 0.9719, 0.9719, 0.9719, 0.9719, 0.9719/
1119
1120 #include "snwmid.h"
1121
1122 c Convert to the 10 bands needed by Chou Radiation
1123 c ------------------------------------------------
1124 do i=1,numpts
1125
1126 c land points
1127 c------------
1128 if(ityp(i).le.10)then
1129 newemis(i, 1) = (emis( 1,ityp(i))+emis(2,ityp(i)))/2.
1130 newemis(i, 2) = (emis( 2,ityp(i))+emis(3,ityp(i)))/2.
1131 newemis(i, 3) = (emis( 4,ityp(i))+emis(5,ityp(i)))/2.
1132 newemis(i, 4) = emis( 6,ityp(i))
1133 newemis(i, 5) = emis( 7,ityp(i))
1134 newemis(i, 6) = emis( 8,ityp(i))
1135 newemis(i, 7) = emis( 9,ityp(i))
1136 newemis(i, 8) = (emis(10,ityp(i))+emis(11,ityp(i)))/2.
1137 newemis(i, 9) = emis(12,ityp(i))
1138 newemis(i,10) = emis( 4,ityp(i))
1139
1140 c modify emissivity for snow based on snow depth (like albedo)
1141 c-------------------------------------------------------------
1142 if(snowdepth (i).gt.0.) then
1143 fac = snowdepth(i) / (snowdepth(i) + snwmid(ityp(i)))
1144 newemis(i, 1) = newemis(i, 1) + (((emis( 1,9)+emis( 2,9))/2.)
1145 . - newemis(i, 1)) * fac
1146 newemis(i, 2) = newemis(i, 2) + (((emis( 2,9)+emis( 3,9))/2.)
1147 . - newemis(i, 2)) * fac
1148 newemis(i, 3) = newemis(i, 3) + (((emis( 4,9)+emis( 5,9))/2.)
1149 . - newemis(i, 3)) * fac
1150 newemis(i, 4) = newemis(i, 4) + (emis( 6,9)
1151 . - newemis(i, 4)) * fac
1152 newemis(i, 5) = newemis(i, 5) + (emis( 7,9)
1153 . - newemis(i, 5)) * fac
1154 newemis(i, 6) = newemis(i, 6) + (emis( 8,9)
1155 . - newemis(i, 6)) * fac
1156 newemis(i, 7) = newemis(i, 7) + (emis( 9,9)
1157 . - newemis(i, 7)) * fac
1158 newemis(i, 8) = newemis(i, 8) + (((emis(10,9)+emis(11,9))/2.)
1159 . - newemis(i, 8)) * fac
1160 newemis(i, 9) = newemis(i, 9) + (emis(12,9)
1161 . - newemis(i, 9)) * fac
1162 newemis(i,10) = newemis(i,10) + (emis( 4,9)
1163 . - newemis(i,10)) * fac
1164 endif
1165
1166 c open water
1167 c-----------
1168 else
1169 if(fraci(i).eq.0.)then
1170 newemis(i, 1) = (emis( 1,11)+emis(2,11))/2.
1171 newemis(i, 2) = (emis( 2,11)+emis(3,11))/2.
1172 newemis(i, 3) = (emis( 4,11)+emis(5,11))/2.
1173 newemis(i, 4) = emis( 6,11)
1174 newemis(i, 5) = emis( 7,11)
1175 newemis(i, 6) = emis( 8,11)
1176 newemis(i, 7) = emis( 9,11)
1177 newemis(i, 8) = (emis(10,11)+emis(11,11))/2.
1178 newemis(i, 9) = emis(12,11)
1179 newemis(i,10) = emis( 4,11)
1180
1181 c sea ice (like glacier and snow)
1182 c--------------------------------
1183 else
1184 newemis(i, 1) = (emis( 1,9)+emis(2,9))/2.
1185 newemis(i, 2) = (emis( 2,9)+emis(3,9))/2.
1186 newemis(i, 3) = (emis( 4,9)+emis(5,9))/2.
1187 newemis(i, 4) = emis( 6,9)
1188 newemis(i, 5) = emis( 7,9)
1189 newemis(i, 6) = emis( 8,9)
1190 newemis(i, 7) = emis( 9,9)
1191 newemis(i, 8) = (emis(10,9)+emis(11,9))/2.
1192 newemis(i, 9) = emis(12,9)
1193 newemis(i,10) = emis( 4,9)
1194 endif
1195 endif
1196 enddo
1197
1198 return
1199 end
1200 subroutine get_landfrac(im,jm,nSx,nSy,bi,bj,maxtyp,surftype,
1201 . tilefrac,frac)
1202 C***********************************************************************
1203 C Purpose
1204 C To compute the total fraction of land within a model grid-box
1205 C
1206 C***********************************************************************
1207 implicit none
1208
1209 integer im,jm,nSx,nSy,bi,bj,maxtyp
1210 integer surftype(im,jm,maxtyp,nSx,nSy)
1211 _RL tilefrac(im,jm,maxtyp,nSx,nSy)
1212 _RL frac(im,jm)
1213
1214 integer i,j,k
1215
1216 do j=1,jm
1217 do i=1,im
1218 frac(i,j) = 0.0
1219 enddo
1220 enddo
1221
1222 do k=1,maxtyp
1223 do j=1,jm
1224 do i=1,im
1225 if( (surftype(i,j,k,bi,bj).lt.100.).and.
1226 . (tilefrac(i,j,k,bi,bj).gt.0.0))then
1227 frac(i,j) = frac(i,j) + tilefrac(i,j,k,bi,bj)
1228 endif
1229 enddo
1230 enddo
1231 enddo
1232
1233 return
1234 end

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