/[MITgcm]/MITgcm_contrib/jscott/igsm/src/grland.F
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Revision 1.3 - (show annotations) (download)
Mon Apr 23 21:20:18 2007 UTC (18 years, 3 months ago) by jscott
Branch: MAIN
CVS Tags: HEAD
Changes since 1.2: +3 -3 lines
Error occurred while calculating annotation data.
bring igsm atmos code up to date

1 c source sokolov users 40827 Aug 24 11:48 grland.F
2 #include "ctrparam.h"
3
4 ! ==========================================================
5 !
6 ! GROUND.F: THIS SUBROUTINE USES THE SURFACE FLUXES TO
7 ! PREDICT IN TIME THE GROUND TEMPERATURE, GROUND
8 ! WATER AND ICE, AND SNOW MELTING.
9 !
10 ! ----------------------------------------------------------
11 !
12 ! Revision History:
13 !
14 ! When Who What
15 ! ---- ---------- -------
16 ! 073100 Chien Wang add cpp & dmax dmin -> max, min
17 !
18 ! ==========================================================
19
20 SUBROUTINE GRLAND 7001.
21 C**** 7001.5
22 C**** THIS SUBROUTINE USES THE SURFACE FLUXES TO PREDICT IN TIME THE 7002.
23 C**** GROUND TEMPERATURE, GROUND WATER AND ICE, AND SNOW MELTING. 7002.5
24 C**** 7003.
25
26 #include "BD2G04.COM" 7003.5
27
28 #if ( defined OCEAN_3D || defined ML_2D )
29 #include "AGRID.h"
30 #endif
31
32 COMMON U,V,T,P,Q 7004.
33 COMMON/WORK1/CONV(IM0,JM0,LM0),PK(IM0,JM0,LM0),PREC(IM0,JM0),
34 & TPREC(IM0,JM0)
35 COMMON/WORK3/E0(IO0,JM0,4),E1(IO0,JM0,4),EVAPOR(IO0,JM0,4) 7004.5
36 COMMON/OT/OTA(IO0,JM0),OTB(IO0,JM0),OTC(IO0,JM0) 7005.
37 COMMON/SPEC2/KM,KINC,COEK,C3LAND(IO0,JM0),C3OICE(IO0,JM0) 7005.1
38 * ,C3LICE(IO0,JM0),WMGE(IO0,JM0),TSSFC(1,JM0,4) 7005.2
39 common/qfl/QFLUX(JM0,0:13),ZOAV(JM0),QFLUXT(JM0)
40 COMMON/OLDZO/Z1OOLD(IO0,JM0)
41 DIMENSION FWATER(JM0),TOBS(JM0),TF68(JM0),DELR(JM0) 7005.3
42 COMMON/FRMIC/ FRMDICE(JM0)
43 DATA SHV/0./,SHW/4185./,SHI/2060./,RHOW/1000./,RHOI/916.6/, 7005.9
44 * ALAMI/2.1762/,TFO/-1.56/,Z1I/.1/,Z2LI/2.9/,Z1E/.1/,Z2E/4./ 7006.
45 INTEGER JDOFM(13) 7006.1
46 DATA JDOFM/0,31,59,90,120,151,181,212,243,273,304,334,365/ 7006.2
47 DATA Z2OIM/0.9/,Z2OIX/4.9/ 7006.5
48 DATA TTRUNC/0./ 7007.
49 DATA IFIRST/1/ 7007.5
50 ROSNOW(X)=0.54*X/LOG(1.+0.54*X/275.)
51 C**** 7008.
52 C**** FDATA 2 LAND COVERAGE (1) 7008.5
53 C**** 3 RATIO OF LAND ICE COVERAGE TO LAND COVERAGE (1) 7009.
54 C**** 7009.5
55 C**** ODATA 1 OCEAN TEMPERATURE (C) 7010.
56 C**** 2 RATIO OF OCEAN ICE COVERAGE TO WATER COVERAGE (1) 7010.5
57 C**** 3 OCEAN ICE AMOUNT OF SECOND LAYER (KG/M**2) 7011.
58 C**** 7011.5
59 C**** GDATA 1 OCEAN ICE SNOW AMOUNT (KG/M**2) 7012.
60 C**** 2 EARTH SNOW AMOUNT (KG/M**2) 7012.5
61 C**** 3 OCEAN ICE TEMPERATURE OF FIRST LAYER (C) 7013.
62 C**** 4 EARTH TEMPERATURE OF FIRST LAYER (C) 7013.5
63 C**** 5 EARTH WATER OF FIRST LAYER (KG/M**2) 7014.
64 C**** 6 EARTH ICE OF FIRST LAYER (KG/M**2) 7014.5
65 C**** 7 OCEAN ICE TEMPERATURE OF SECOND LAYER (C) 7015.
66 C**** 8 EARTH TEMPERATURE OF SECOND LAYER (C) 7015.5
67 C**** 9 EARTH WATER OF SECOND LAYER (KG/M**2) 7016.
68 C**** 10 EARTH ICE OF SECOND LAYER (KG/M**2) 7016.5
69 C**** 12 LAND ICE SNOW AMOUNT (KG/M**2) 7017.
70 C**** 13 LAND ICE TEMPERATURE OF FIRST LAYER (C) 7017.5
71 C**** 14 LAND ICE TEMPERATURE OF SECOND LAYER (C) 7018.
72 C**** 7018.5
73 C**** VDATA 9 WATER FIELD CAPACITY OF FIRST LAYER (KG/M**2) 7019.
74 C**** 10 WATER FIELD CAPACITY OF SECOND LAYER (KG/M**2) 7019.5
75 C**** 7020.
76 IF(IFIRST.NE.1) GO TO 50 7020.5
77 IFIRST=0 7021.
78 FIO=IO 7021.1
79 JDAYPR=0
80 10 DTSRCE=NDYN*DT 7023.
81 ACE1I=Z1I*RHOI 7023.5
82 AC2OIM=Z2OIM*RHOI 7024.
83 ATRUNC=2.**(-13) 7024.5
84 BYZICX=1./(Z1I+Z2OIX) 7024.6
85 HC1I=ACE1I*SHI 7025.
86 HC2LI=Z2LI*RHOI*SHI 7025.5
87 HC1DE=Z1E*1129950. 7026.
88 HC2DE=Z2E*1129950.+3.5*.125*RHOW*3100. 7026.5
89 DIFFUS=DTSRCE/SDAY 7027.
90 C OTCOR=-.927E18 7027.1
91 print *,'E0(1,j,1)'
92 print *,(E0(1,j,1),j=1,JM0)
93 COEFSN=1.
94 print *,' COEFSN=',COEFSN
95 50 ANGLE=TWOPI*JDAY/365. 7027.5
96 DO 55 MONTH=1,12 7027.6
97 IF(JDAY.LE.JDOFM(MONTH+1)) GO TO 56 7027.7
98 55 CONTINUE 7027.8
99 56 CONTINUE 7027.9
100 SINANG=SIN(ANGLE) 7028.
101 COSANG=COS(ANGLE) 7028.5
102 C**** 7029.
103 C**** OUTSIDE LOOP OVER J AND I, EXECUTED ONCE FOR EACH GRID POINT 7029.5
104 C**** 7030.
105 JRPR=0
106 DO 980 J=1,JM 7030.5
107 IMAX=IM 7031.
108 IF((J.EQ.1).OR.(J.EQ.JM)) IMAX=1 7031.5
109 C DELR(J)=(TF68(J)-TOBS(J))*Z1O(1,J)*RHOW*SHW/(365.*SDAY) 7031.6
110 BF1DT=0. 7032.
111 CF1DT=0. 7032.5
112 AOTDT=0. 7033.
113 COTDT=0. 7033.5
114 AEFO=0. 7034.
115 CEFI=0. 7034.5
116 BEDIFS=0. 7035.
117 CEDIFS=0. 7035.5
118 BERUN0=0. 7036.
119 CF2DT=0. 7036.5
120 BERUN2=0. 7037.
121 CERUN2=0. 7037.5
122 AERUN4=0. 7038.
123 CERUN4=0. 7038.5
124 ATG1=0. 7039.
125 BTG1=0. 7039.5
126 CTG1=0. 7040.
127 ATG2=0. 7040.5
128 BTG2=0. 7041.
129 CTG2=0. 7041.5
130 ATG3=0. 7042.
131 AEVAP=0. 7042.5
132 BEVAP=0. 7043.
133 CEVAP=0. 7043.5
134 BDIFS=0. 7044.
135 CDIFS=0. 7044.5
136 AIFO=0. 7045.
137 CIFI=0. 7045.5
138 BRUN0=0. 7046.
139 BRUNS0=0.
140 CRUN0=0. 7046.5
141 BRUN2=0. 7047.
142 CRUN2=0. 7047.5
143 ARUN4=0. 7048.
144 CRUN4=0. 7048.5
145 BWTR1=0. 7049.
146 BACE1=0. 7049.5
147 BWTR2=0. 7050.
148 BACE2=0. 7050.5
149 CACE2=0. 7051.
150 BSNOW=0. 7051.5
151 CSNOW=0. 7052.
152 CICOV=0. 7052.5
153 DO 960 I=1,IMAX 7053.
154 C**** 7053.5
155 C**** DETERMINE SURFACE CONDITIONS 7054.
156 C**** 7054.5
157 PLAND=FDATA(I,J,2) 7055.
158 PWATER=1.-PLAND 7055.5
159 PLICE=FDATA(I,J,3)*PLAND 7056.
160 PEARTH=PLAND-PLICE 7056.5
161 ROICE=ODATA(I,J,2) 7057.
162 POICE=ROICE*PWATER 7057.5
163 POCEAN=PWATER-POICE 7058.
164 if(POCEAN.LE.1.E-5)then
165 POCEAN=0.
166 POICE=PWATER
167 endif
168 JR=J
169 DXYPJ=DXYP(J) 7059.
170 SNOWS=0. 7059.5
171 WTR1S=0. 7060.
172 ACE1S=0. 7060.5
173 WTR2S=0. 7061.
174 ACE2S=0. 7061.5
175 TG1S=0. 7062.
176 TG2S=0. 7062.5
177 EVAPS=0. 7063.
178 RUN0S=0. 7063.5
179 RUNS0=0. 7063.5
180 DIFSS=0. 7064.
181 C**** 7064.5
182 C**** 7167.5
183 400 IF(PLICE.LE.1.E-5) GO TO 600 7168.
184 C**** 7168.5
185 C**** LAND ICE 7169.
186 C**** 7169.5
187 SNOW=GDATA(I,J,12) 7170.
188 TG1=GDATA(I,J,13) 7170.5
189 TG2=GDATA(I,J,14) 7171.
190 F0DT=E0(I,J,3) 7171.5
191 AIJ(I,J,67)=AIJ(I,J,67)+F0DT 7172.
192 F1DT=E1(I,J,3) 7172.5
193 EVAP=EVAPOR(I,J,3) 7173.
194 AIJ(I,J,63)=AIJ(I,J,63)+EVAP 7173.5
195 C**** CALCULATE TG1 7174.
196 SNANDI=SNOW+ACE1I-EVAP 7174.5
197 c if (SNANDI.le.0.0)then
198 c print *,' After 7174.5 TAU=',TAU,' J=',J
199 c endif
200 HC1=SNANDI*SHI 7175.
201 ENRG1=F0DT+EVAP*(TG1*SHI-LHM)-F1DT 7175.5
202 IF(ENRG1.LE.-TG1*HC1) GO TO 420 7176.
203 C**** FLUXES HEAT UP TG1 TO FREEZING POINT AND MELT SOME SNOW AND ICE 7176.5
204 RUN0=(ENRG1+TG1*HC1)/LHM 7177.
205 c RUNS0 does not include runoff due melting of land ice
206 c RUNS0 includes runoff due melting of land ice formed from snow
207 c during the run.
208 RUNS0=DMIN1(RUN0,SNOW+FRMDICE(J))
209 if(RUN0.gt.SNOW)then
210 FRMDICE(j)=FRMDICE(j)-(RUN0-SNOW)
211 if( FRMDICE(j).lt.0.0) FRMDICE(j)=0.0
212 endif
213 c
214 TG1=0. 7177.5
215 SNANDI=SNANDI-RUN0 7178.
216 c if (SNANDI.le.0.0)then
217 c print *,' After 7178 TAU=',TAU,' J=',J
218 c endif
219 BRUN0=BRUN0+RUN0*PLICE 7178.5
220 BRUNS0=BRUNS0+RUNS0*PLICE
221 RUN0S=RUN0S+RUN0*PLICE 7179.
222 AIJ(I,J,33)=AIJ(I,J,33)+RUN0 7179.5
223 GO TO 440 7180.
224 C**** FLUXES RECOMPUTE TG1 WHICH IS BELOW FREEZING POINT 7180.5
225 420 TG1=TG1+ENRG1/HC1 7181.
226 440 IF(SNANDI.GE.ACE1I) GO TO 460 7181.5
227 C**** SOME ICE HAS MELTED OR EVAPORATED, TAKE IT FROM G2 7182.
228 SNOW=0. 7182.5
229 DIFS=SNANDI-ACE1I 7183.
230 TG1=(TG1*SNANDI-TG2*DIFS)/ACE1I 7183.5
231 c if (DIFS.le.0.0)then
232 c print *,' After 7183.5 TAU=',TAU,' J=',J
233 c print *,'SNANDI=',SNANDI,' DIFS=',DIFS
234 c print *,'TG1=',TG1,' TG2=',TG2
235 c endif
236 EDIFS=DIFS*(TG2*SHI-LHM) 7184.
237 BEDIFS=BEDIFS+EDIFS*PLICE 7184.5
238 AIJ(I,J,69)=AIJ(I,J,69)+EDIFS 7185.
239 BDIFS=BDIFS+DIFS*PLICE 7185.5
240 DIFSS=DIFSS+DIFS*PLICE 7186.
241 BERUN2=BERUN2+EDIFS*PLICE 7186.5
242 C AIJ(I,J,72)=AIJ(I,J,72)+ERUN2 7187.
243 AIJ(I,J,72)=AIJ(I,J,72)+EDIFS 7187.1
244 BRUN2=BRUN2+DIFS*PLICE 7187.5
245 GO TO 500 7188.
246 460 SNOW=SNANDI-ACE1I 7188.5
247 C**** CALCULATE TG2 7189.
248 500 TG2=TG2+F1DT/HC2LI 7189.5
249 C**** RESAVE PROGNOSTIC QUANTITIES 7190.
250 GDATA(I,J,12)=SNOW 7190.5
251 GDATA(I,J,13)=TG1 7191.
252 GDATA(I,J,14)=TG2 7191.5
253 if (SNOW.gt.10.)then
254 RHOS0=ROSNOW(SNOW)
255 else
256 RHOS0=275.
257 endif
258 RHOS=COEFSN*RHOS0
259 BSNOW=BSNOW+100*SNOW/RHOS*PLICE
260 c BSNOW=BSNOW+SNOW*PLICE 7192.
261 BTG1=BTG1+TG1*PLICE 7192.5
262 BTG2=BTG2+TG2*PLICE 7193.
263 BF1DT=BF1DT+F1DT*PLICE 7193.5
264 AIJ(I,J,69)=AIJ(I,J,69)+F1DT 7194.
265 BEVAP=BEVAP+EVAP*PLICE 7194.5
266 SNOWS=SNOWS+SNOW*PLICE 7195.
267 TG1S=TG1S+TG1*PLICE 7195.5
268 ACE1S=ACE1S+ACE1I*PLICE 7196.
269 ACE2S=ACE2S+Z2LI*RHOI*PLICE 7196.5
270 TG2S=TG2S+TG2*PLICE 7197.
271 EVAPS=EVAPS+EVAP*PLICE 7197.5
272 C**** 7198.
273 600 IF(PEARTH.LE.1.E-5) GO TO 940 7198.5
274 C**** 7199.
275 C**** EARTH 7199.5
276 C**** 7200.
277 SNOW=GDATA(I,J,2) 7200.5
278 TG1=GDATA(I,J,4) 7201.
279 WTR1=GDATA(I,J,5) 7201.5
280 ACE1=GDATA(I,J,6) 7202.
281 TG2=GDATA(I,J,8) 7202.5
282 WTR2=GDATA(I,J,9) 7203.
283 ACE2=GDATA(I,J,10) 7203.5
284 WFC1=VDATA(I,J,9) 7204.
285 WFC2=VDATA(I,J,10) 7204.5
286 CHI1=(WTR1+ACE1)/WFC1 7205.
287 GFAC=WFC2/WFC1 7205.5
288 HC1=HC1DE+WTR1*SHW+(ACE1+SNOW)*SHI 7206.
289 F0DT=E0(I,J,4) 7206.5
290 AIJ(I,J,68)=AIJ(I,J,68)+F0DT 7207.
291 F1DT=E1(I,J,4) 7207.5
292 EVAP=EVAPOR(I,J,4) 7208.
293 EVAPS=EVAPS+EVAP*PEARTH 7208.5
294 AIJ(I,J,64)=AIJ(I,J,64)+EVAP 7209.
295 C**** 7209.5
296 C**** EARTH, DETERMINE EVAPORATION AND DIFFUSION OF WATER 7210.
297 C**** 7210.5
298 ENRG1=0. 7211.
299 IF(SNOW.LE.0.) GO TO 625 7211.5
300 IF(EVAP.GT.SNOW) GO TO 620 7212.
301 C**** SOME SNOW EVAPORATES 7212.5
302 610 ENRG1=EVAP*(TG1*SHI-LHM) 7213.
303 SNOW=SNOW-EVAP 7213.5
304 GO TO 660 7214.
305 C**** ALL SNOW EVAPORATES 7214.5
306 620 EVAP=EVAP-SNOW 7215.
307 ENRG1=SNOW*(TG1*SHI-LHM) 7215.5
308 SNOW=0. 7216.
309 GO TO 630 7216.5
310 625 IF(WTR1+ACE1-EVAP.LE.WFC1) GO TO 630 7217.
311 C**** DEW+WTR+ACE EXCEEDS WFC, DO NOT BOTHER TO CORRECT ALL DIAGNOSTICS 7217.5
312 C IF(TG1.LE.0.) GO TO 610 7218.
313 C RUN0=WTR1+ACE1-EVAP-WFC1 7218.5
314 C ERUN0=RUN0*TG1*SHW 7219.
315 C WTR1=WFC1-ACE1 7219.5
316 C ENRG1=-ERUN0 7220.
317 GO TO 660 7220.5
318 630 IF(EVAP.LE.WTR1+ACE1) GO TO 640 7221.
319 C**** ALL WATER AND ICE EVAPORATES,RECOMPUTE EVHDT AND EVAP 7221.5
320 DEVAP=EVAP-(WTR1+ACE1) 7222.
321 DEVHDT=-DEVAP*(LHE+TG1*SHV) 7222.5
322 ENRG1=ENRG1+WTR1*TG1*SHW+ACE1*(TG1*SHI-LHM) 7223.
323 EVAP=WTR1+ACE1 7223.5
324 WTR1=0. 7224.
325 ACE1=0. 7224.5
326 F0DT=F0DT-DEVHDT 7225.
327 BJ(J,14)=BJ(J,14)-DEVHDT*PEARTH 7225.5
328 AIJ(I,J,23)=AIJ(I,J,23)-DEVHDT*PEARTH 7226.
329 AIJ(I,J,68)=AIJ(I,J,68)-DEVHDT 7226.5
330 AIJ(I,J,64)=AIJ(I,J,64)-DEVAP 7227.
331 EVAPS=EVAPS-DEVAP*PEARTH 7227.5
332 GO TO 660 7228.
333 C**** EVAPORATION FROM WATER AND ICE 7228.5
334 640 IF(EVAP.GT.WTR1+ACE1) EVAP=WTR1+ACE1 7228.6
335 DWET=EVAP/(WTR1+ACE1+1.E-20) 7229.
336 650 ENRG1=ENRG1+DWET*(WTR1*TG1*SHW+ACE1*(TG1*SHI-LHM)) 7229.5
337 WTR1=WTR1*(1.-DWET) 7230.
338 ACE1=ACE1*(1.-DWET) 7230.5
339 C**** DETERMINE DIFFUSION OF WATER 7231.
340 660 X=(WTR1+ACE1)/(WTR2+ACE2+1.E-20) 7231.5
341 IF(1..LT.X*GFAC) GO TO 670 7232.
342 GROW=1. 7232.5
343 IF((SINP(J).GT..5).AND.(JDAY-121)*(243-JDAY).LT.0) GROW=0. 7233.
344 IF((SINP(J).LT.-.5).AND.(JDAY-60)*(304-JDAY).GE.0) GROW=0. 7233.5
345 DIFS=GROW*(1.-VDATA(I,J,1))*WTR2*(X*GFAC-1.)/(1.+GFAC) 7234.
346 EDIFS=TG2*DIFS*SHW 7234.5
347 c if(JDAY.GE.186.and.(J.eq.43.or.J.eq.44))then
348 c if(JRPR.ne.J) then
349 c print *,JDAY,J,SINP(J)
350 c print *,WTR1,WTR2,ACE1,ACE2
351 c print *,TG1,TG2,GROW,VDATA(I,J,1)
352 c print *,DIFS
353 c endif
354 c endif
355 GO TO 690 7235.
356 670 DIFS=DIFFUS*WTR1*(GFAC-1./X)/(1.+GFAC) 7235.5
357 EDIFS=TG1*DIFS*SHW 7236.
358 690 BEDIFS=BEDIFS+EDIFS*PEARTH 7236.5
359 BDIFS=BDIFS+DIFS*PEARTH 7237.
360 DIFSS=DIFSS+DIFS*PEARTH 7237.5
361 C**** 7238.
362 C**** EARTH, CALCULATE TG1 7238.5
363 C**** 7239.
364 ENRG1=ENRG1+F0DT-F1DT-EDIFS 7239.5
365 IF(TG1) 710,740,750 7240.
366 C**** FREEZE THE WATER THAT DIFFUSES INTO G1 7240.5
367 710 ENRG1=ENRG1+DIFS*(TG1*SHI-LHM) 7241.
368 ACE1=ACE1-DIFS 7241.5
369 HC1=HC1DE+(ACE1+SNOW)*SHI 7242.
370 IF(ENRG1.LE.-TG1*HC1) GO TO 780 7242.5
371 C**** FLUXES HEAT UP TG1 TO FREEZING POINT 7243.
372 ENRG1=ENRG1+TG1*HC1 7243.5
373 TG1=0. 7244.
374 720 IF(ENRG1.LE.(ACE1+SNOW)*LHM) GO TO 730 7244.5
375 C**** SNOW AND GROUND ICE MELTS, RECOMPUTE TG1 7245.
376 RUN0=MAX(SNOW*.5*CHI1,SNOW+WTR1+ACE1-WFC1) 7245.5
377 WTR1=WTR1+ACE1+SNOW-RUN0 7246.
378 TG1=(ENRG1-(ACE1+SNOW)*LHM)/(HC1DE+WTR1*SHW) 7246.5
379 ACE1=0. 7247.
380 SNOW=0. 7247.5
381 GO TO 790 7248.
382 C**** SOME SNOW AND GROUND ICE MELTS, TG1 IS AT FREEZING POINT 7248.5
383 730 DWATER=ENRG1/LHM 7249.
384 DSNOW=MIN(SNOW,DWATER) 7249.5
385 RUN0=MAX(DSNOW*.5*CHI1,DSNOW+WTR1+ACE1-WFC1) 7250.
386 SNOW=SNOW-DSNOW 7250.5
387 ACE1=ACE1-(DWATER-DSNOW) 7251.
388 WTR1=WTR1+(DWATER-RUN0) 7251.5
389 GO TO 790 7252.
390 C**** TG1 IS AT FREEZING POINT, SUBTRACT WATER THAT DIFFUSES OUT OF G1 7252.5
391 740 WTR1=WTR1-DIFS 7253.
392 HC1=HC1DE+WTR1*SHW+(ACE1+SNOW)*SHI 7253.5
393 IF(ENRG1.GT.0.) GO TO 720 7254.
394 GO TO 760 7254.5
395 C**** THE WATER THAT DIFFUSES OUT OF G1 IS ABOVE THE FREEZING POINT 7255.
396 750 ENRG1=ENRG1+TG1*DIFS*SHW 7255.5
397 WTR1=WTR1-DIFS 7256.
398 HC1=HC1DE+WTR1*SHW 7256.5
399 IF(-ENRG1.LE.TG1*HC1) GO TO 780 7257.
400 C**** FLUXES COOL TG1 TO FREEZING POINT 7257.5
401 ENRG1=ENRG1+TG1*HC1 7258.
402 TG1=0. 7258.5
403 760 IF(-ENRG1.LE.WTR1*LHM) GO TO 770 7259.
404 C**** GROUND WATER FREEZES, RECOMPUTE TG1 7259.5
405 ACE1=WTR1+ACE1 7260.
406 TG1=(ENRG1+WTR1*LHM)/(HC1DE+(ACE1+SNOW)*SHI) 7260.5
407 WTR1=0. 7261.
408 GO TO 800 7261.5
409 C**** SOME GROUND WATER FREEZES, TG1 IS AT FREEZING POINT 7262.
410 770 DICE=-ENRG1/LHM 7262.5
411 WTR1=WTR1-DICE 7263.
412 ACE1=ACE1+DICE 7263.5
413 GO TO 800 7264.
414 C**** FLUXES DO NOT CAUSE TG1 TO CROSS THE FREEZING POINT 7264.5
415 780 TG1=TG1+ENRG1/HC1 7265.
416 GO TO 800 7265.5
417 790 BRUN0=BRUN0+RUN0*PEARTH 7266.
418 RUNS0=RUN0
419 BRUNS0=BRUNS0+RUNS0*PEARTH
420 RUN0S=RUN0S+RUN0*PEARTH 7266.5
421 AIJ(I,J,32)=AIJ(I,J,32)+RUN0 7267.
422 C**** 7267.5
423 C**** EARTH, CALCULATE TG2 7268.
424 C**** 7268.5
425 800 ENRG2=F1DT+EDIFS 7269.
426 HC2=HC2DE+WTR2*SHW+ACE2*SHI 7269.5
427 IF(TG2) 810,840,850 7270.
428 C**** FREEZE THE WATER THAT DIFFUSES AND PERCOLATES INTO G2 7270.5
429 810 ENRG2=ENRG2-DIFS*(TG2*SHI-LHM) 7271.
430 ACE2=ACE2+DIFS 7271.5
431 HC2=HC2DE+ACE2*SHI 7272.
432 IF(ENRG2.LE.-TG2*HC2) GO TO 880 7272.5
433 C**** FLUXES HEAT UP TG2 TO FREEZING POINT 7273.
434 ENRG2=ENRG2+TG2*HC2 7273.5
435 TG2=0. 7274.
436 820 IF(ENRG2.LE.ACE2*LHM) GO TO 830 7274.5
437 C**** GROUND ICE MELTS, RECOMPUTE TG2 7275.
438 WTR2=WTR2+ACE2 7275.5
439 TG2=(ENRG2-ACE2*LHM)/(HC2DE+WTR2*SHW) 7276.
440 ACE2=0. 7276.5
441 GO TO 890 7277.
442 C**** SOME GROUND ICE MELTS, TG2 IS AT FREEZING POINT 7277.5
443 830 DWATER=ENRG2/LHM 7278.
444 WTR2=WTR2+DWATER 7278.5
445 ACE2=ACE2-DWATER 7279.
446 GO TO 890 7279.5
447 C**** TG2 IS AT FREEZING POINT, ADD IN WATER THAT DIFFUSES OR PERCOLATE 7280.
448 840 WTR2=WTR2+DIFS 7280.5
449 HC2=HC2DE+WTR2*SHW+ACE2*SHI 7281.
450 IF(ENRG2.GT.0.) GO TO 820 7281.5
451 GO TO 860 7282.
452 C**** WATER THAT DIFFUSES OR PERCOLATES IS ABOVE FREEZING POINT 7282.5
453 850 ENRG2=ENRG2-TG2*DIFS*SHW 7283.
454 WTR2=WTR2+DIFS 7283.5
455 HC2=HC2DE+WTR2*SHW 7284.
456 IF(-ENRG2.LE.TG2*HC2) GO TO 880 7284.5
457 C**** FLUXES COOL TG2 TO FREEZING POINT 7285.
458 ENRG2=ENRG2+TG2*HC2 7285.5
459 TG2=0. 7286.
460 860 IF(-ENRG2.LE.WTR2*LHM) GO TO 870 7286.5
461 C**** GROUND WATER FREEZES, RECOMPUTE TG2 7287.
462 ACE2=WTR2+ACE2 7287.5
463 TG2=(ENRG2+WTR2*LHM)/(HC2DE+ACE2*SHI) 7288.
464 WTR2=0. 7288.5
465 GO TO 890 7289.
466 C**** SOME GROUND WATER FREEZES, TG2 IS AT FREEZING POINT 7289.5
467 870 DICE=-ENRG2/LHM 7290.
468 WTR2=WTR2-DICE 7290.5
469 ACE2=ACE2+DICE 7291.
470 GO TO 890 7291.5
471 C**** FLUXES DO NOT CAUSE TG2 TO CROSS THE FREEZING POINT 7292.
472 880 TG2=TG2+ENRG2/HC2 7292.5
473 890 CONTINUE 7293.
474 C**** RESAVE PROGNOSTIC QUANTITIES 7293.5
475 GDATA(I,J,2)=SNOW 7294.
476 GDATA(I,J,4)=TG1 7294.5
477 c print *,'From GRLAND TG1=',TG1
478 C 13/11/03
479 c IF(WTR1+ACE1.GT.WFC1) WTR1=.99999*WTR1 7294.6
480 c IF(WTR1+ACE1.GT.WFC1) ACE1=.99999*ACE1 7294.7
481 IF(WTR1+ACE1.GT.WFC1) THEN
482 if(TG1.gt.0.0)then
483 print *,'From ground WFC1'
484 print *,JDAY,J
485 print *,WFC2,WTR2,TG2,ACE2
486 print *,WFC1,WTR1,TG1,ACE1
487 WTRT=WFC1-ACE1
488 RUNS0=WTR1-WTRT
489 BRUNS0=BRUNS0+RUNS0*PEARTH
490 WTR1=max(WTRT,0.0)
491 endif
492 ENDIF
493 GDATA(I,J,5)=WTR1 7295.
494 GDATA(I,J,6)=ACE1 7295.5
495 GDATA(I,J,8)=TG2 7296.
496 JDAYPR=JDAY
497 c if((WTR2.lt.1.e-7.and.ACE2.lt.1.e-7)
498 c & .or.(WTR1.lt.1.e-7.and.ACE1.lt.1.e-7) )then
499 c if(WTR2.lt.1.e-3*WFC2.and.ACE2.lt.1.e-5)then
500 c if(JDAY.ne.JDAYPR.and.JRPR.ne.J)then
501 c JDAYPR=JDAY
502 c JRPR=J
503 c print *,'From ground'
504 c print *,JDAY,J
505 c print *,WFC2,WTR2,TG2,ACE2
506 c print *,WFC1,WTR1,TG1,ACE1
507 c print *,'WTR2 was not changed'
508 c endif
509 c WTR2=1.e-7
510 c WTR2=1.e-3*WFC2
511 c endif
512 IF(WTR2+ACE2.GT.WFC2) THEN
513 if(TG2.gt.0.0)then
514 print *,'From ground WFC2'
515 print *,JDAY,J
516 print *,WFC2,WTR2,TG2,ACE2
517 print *,WFC1,WTR1,TG1,ACE1
518 WTRT=WFC2-ACE2
519 RUNS0=WTR2-WTRT
520 BRUNS0=BRUNS0+RUNS0*PEARTH
521 WTR2=max(WTRT,0.0)
522 endif
523 ENDIF
524 GDATA(I,J,9)=WTR2 7296.5
525 GDATA(I,J,10)=ACE2 7297.
526 if (SNOW.gt.10.)then
527 RHOS0=ROSNOW(SNOW)
528 else
529 RHOS0=275.
530 endif
531 RHOS=COEFSN*RHOS0
532 BSNOW=BSNOW+100*SNOW/RHOS*PEARTH
533 c BSNOW=BSNOW+SNOW*PEARTH 7297.5
534 BTG1=BTG1+TG1*PEARTH 7298.
535 BTG2=BTG2+TG2*PEARTH 7298.5
536 BWTR1=BWTR1+WTR1*PEARTH 7299.
537 BACE1=BACE1+ACE1*PEARTH 7299.5
538 BWTR2=BWTR2+WTR2*PEARTH 7300.
539 BACE2=BACE2+ACE2*PEARTH 7300.5
540 BF1DT=BF1DT+F1DT*PEARTH 7301.
541 BEVAP=BEVAP+EVAP*PEARTH 7301.5
542 SNOWS=SNOWS+SNOW*PEARTH 7302.
543 TG1S=TG1S+TG1*PEARTH 7302.5
544 WTR1S=WTR1S+WTR1*PEARTH 7303.
545 ACE1S=ACE1S+ACE1*PEARTH 7303.5
546 WTR2S=WTR2S+WTR2*PEARTH 7304.
547 ACE2S=ACE2S+ACE2*PEARTH 7304.5
548 TG2S=TG2S+TG2*PEARTH 7305.
549 AIJ(I,J,7)=AIJ(I,J,7)+(WTR1+ACE1)/WFC1 7305.5
550 AIJ(I,J,50)=AIJ(I,J,50)+(WTR1+ACE1+WTR2+ACE2) 7306.
551 C**** 7306.5
552 C**** ACCUMULATE DIAGNOSTICS 7307.
553 C**** 7307.5
554 C**** QUANTITIES ACCUMULATED FOR REGIONS IN DIAGJ 7308.
555 940 IF(JR.EQ.JM0) GO TO 950 7308.5
556 DJ(JR,17)=DJ(JR,17)+TG2S*DXYPJ 7309.
557 DJ(JR,18)=DJ(JR,18)+TG1S*DXYPJ 7309.5
558 DJ(JR,45)=DJ(JR,45)+DIFSS*DXYPJ 7310.5
559 DJ(JR,49)=DJ(JR,49)+WTR1S*DXYPJ 7311.
560 DJ(JR,50)=DJ(JR,50)+ACE1S*DXYPJ 7311.5
561 DJ(JR,51)=DJ(JR,51)+WTR2S*DXYPJ 7312.
562 DJ(JR,52)=DJ(JR,52)+ACE2S*DXYPJ 7312.5
563 DJ(JR,53)=DJ(JR,53)+SNOWS*DXYPJ 7313.
564 DJ(JR,54)=DJ(JR,54)+RUN0S*DXYPJ 7313.5
565 C**** QUANTITIES ACCUMULATED FOR LATITUDE-LONGITUDE MAPS IN DIAGIJ 7314.
566 950 AIJ(I,J,6)=AIJ(I,J,6)+EVAPS 7314.5
567 AIJ(I,J,28)=AIJ(I,J,28)+TG1S 7315.
568 960 CONTINUE 7315.5
569 C**** LONGITUDINALLY INTEGRATED QUANTITIES FOR DIAGJ 7316.
570 BJ(J,17)=BJ(J,17)+BTG2 7317.5
571 BJ(J,18)=BJ(J,18)+BTG1 7319.
572 BJ(J,19)=BJ(J,19)+BEVAP 7320.5
573 BJ(J,40)=BJ(J,40)+BERUN0 7323.5
574 BJ(J,41)=BJ(J,41)+BEDIFS 7324.
575 BJ(J,42)=BJ(J,42)+BF1DT 7325.
576 ! BJ(J,43)=BJ(J,43)+BERUN2 7326.5
577 ! BJ(J,45)=BJ(J,45)+BDIFS 7327.5
578 BJ(J,46)=BJ(J,46)+BRUN2 7329.
579 BJ(J,49)=BJ(J,49)+BWTR1 7332.
580 BJ(J,50)=BJ(J,50)+BACE1 7332.5
581 BJ(J,51)=BJ(J,51)+BWTR2 7333.
582 BJ(J,52)=BJ(J,52)+BACE2 7333.5
583 BJ(J,53)=BJ(J,53)+BSNOW 7334.5
584 BJ(J,47)=BJ(J,47)+BRUN0 7335.5
585 BJ(J,54)=BJ(J,54)+BRUNS0
586 #if ( defined OCEAN_3D || defined ML_2D )
587 C Runoff from first layer of soil does not include ice melting
588 if(PLICE+PEARTH.gt.0.0)then
589 arunoff(j)=arunoff(j)+BRUNS0/(PLICE+PEARTH)
590 end if
591 #endif
592 980 CONTINUE 7336.5
593 RETURN 7337.
594 END 7337.5

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