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jscott |
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#include "ctrparam.h" |
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SUBROUTINE PRECIP_LAND(mndriver) 4001. |
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C**** 4001.5 |
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C**** THIS SUBROUTINE USES THE PRECIPITATION TO CALCULATE THE GROUND 4002. |
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C**** WATER, GROUND ICE, SNOW COVER, AND RUNOFF 4002.5 |
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C**** 4003. |
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C**** RUN1 IS NOT ACUMULATED IN ADAILY FOR DIAG6 4003.5 |
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C**** 4004. |
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#include "BD2G04.COM" 4004.5 |
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#if ( defined OCEAN_3D || defined ML_2D ) |
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#include "AGRID.COM" |
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#endif |
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COMMON U,V,T,P,Q 4005. |
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COMMON/WORK1/CONV(IM0,JM0,LM0),PK(IM0,JM0,LM0),PREC(IM0,JM0), |
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& TPREC(IM0,JM0) 4005.5 |
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COMMON/FRMIC/ FRMDICE(JM0) |
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DATA SHW/4185./,SHI/2060./,RHOI/916.6/ 4006. |
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DATA Z1I/.1/,Z1E/.1/,Z2LI/2.9/ 4006.5 |
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DATA RHOW/1000./,Z2OIM/0.9/,TFO/-1.56/ 4007. |
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DATA TTRUNC/0./ 4007.5 |
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DATA IFIRST/1/ 4008. |
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C**** 4008.5 |
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C**** FDATA 2 LAND COVERAGE (1) 4009. |
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C**** 3 RATIO OF LAND ICE COVERAGE TO LAND COVERAGE (1) 4009.5 |
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C**** 4010. |
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C**** ODATA 1 OCEAN TEMPERATURE (C) 4010.5 |
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C**** 2 RATIO OF OCEAN ICE COVERAGE TO WATER COVERAGE (1) 4011. |
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C**** 3 OCEAN ICE AMOUNT OF SECOND LAYER (KG/M**2) 4011.5 |
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C**** 4012. |
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C**** GDATA 1 OCEAN ICE SNOW AMOUNT (KG/M**2) 4012.5 |
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C**** 2 EARTH SNOW AMOUNT (KG/M**2) 4013. |
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C**** 3 OCEAN ICE TEMPERATURE OF FIRST LAYER (C) 4013.5 |
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C**** 4 EARTH TEMPERATURE OF FIRST LAYER (C) 4014. |
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C**** 5 EARTH WATER OF FIRST LAYER (KG/M**2) 4014.5 |
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C**** 6 EARTH ICE OF FIRST LAYER (KG/M**2) 4015. |
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C**** 7 OCEAN ICE TEMPERATURE OF SECOND LAYER (C) 4015.5 |
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C**** 12 LAND ICE SNOW AMOUNT (KG/M**2) 4016. |
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C**** 13 LAND ICE TEMPERATURE OF FIRST LAYER (C) 4016.5 |
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C**** 14 LAND ICE TEMPERATURE OF SECOND LAYER (C) 4017. |
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C**** 4017.5 |
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C**** VDATA 9 WATER FIELD CAPACITY OF FIRST LAYER (KG/M**2) 4018. |
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C**** 4018.5 |
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IF(IFIRST.NE.1) GO TO 10 4019. |
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IFIRST=0 4019.5 |
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SHA=RGAS/KAPA 4020. |
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ACE1I=Z1I*RHOI 4020.5 |
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AC2OIM=Z2OIM*RHOI 4021. |
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ATRUNC=2.**(-13) 4021.5 |
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ACE2LI=Z2LI*RHOI 4022. |
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HC1I=ACE1I*SHI 4022.5 |
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HC1DE=Z1E*1129950. 4023. |
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DO J=1,JM |
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FRMDICE(j)=0.0 |
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ENDDO |
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print *,'SNOWMAX=4*ACE1I (1m)' |
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C**** 4023.5 |
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C**** OUTSIDE LOOP OVER J AND I, EXECUTED ONCE FOR EACH GRID POINT 4024. |
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C**** 4024.5 |
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10 DO 980 J=1,JM 4025. |
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IMAX=IM 4025.5 |
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IF(J.EQ.1.OR.J.EQ.JM) IMAX=1 4026. |
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BENRGP=0. 4027. |
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BEDIFS=0. 4028. |
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BERUN0=0. 4029.5 |
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BERUN2=0. 4030. |
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BDIFS=0. 4032. |
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BRUN0=0. 4033.5 |
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BRUNS0=0. |
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BRUN2=0. 4034.5 |
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DO 960 I=1,IMAX 4036.5 |
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IF(PREC(I,J).LE.0.) GO TO 960 4037. |
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C**** 4037.5 |
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C**** DETERMINE SURFACE CONDITIONS 4038. |
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C**** 4038.5 |
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PLAND=FDATA(I,J,2) 4039. |
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PWATER=1.-PLAND 4039.5 |
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PLICE=FDATA(I,J,3)*PLAND 4040. |
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PEARTH=PLAND-PLICE 4040.5 |
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ROICE=ODATA(I,J,2) 4041. |
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POICE=ROICE*PWATER 4041.5 |
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POCEAN=PWATER-POICE 4042. |
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JR=J |
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DXYPJ=DXYP(J) 4043. |
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RUN0S=0. 4043.5 |
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DIFSS=0. 4044. |
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C**** CALCULATE PRECIPITATION HEAT FLUX (FALLS AT 0 DEGREES CENTIGRADE) 4044.5 |
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! PRCP=PREC(I,J) 4045. |
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! 07.18.2006 |
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PRCP=PREC(I,J)*prlnd2total(j,mndriver) |
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TPRCP=TPREC(I,J) 4045.5 |
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IF(TPRCP.LT.0.) GO TO 30 4046. |
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C EPRCP=PRCP*TPRCP*SHW 4046.5 |
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EPRCP=0. 4047. |
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ENRGP=EPRCP 4047.5 |
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GO TO 50 4048. |
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C EPRCP=PRCP*TPRCP*SHI 4048.5 |
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30 EPRCP=0. 4049. |
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ENRGP=EPRCP-PRCP*LHM 4049.5 |
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AIJ(I,J,70)=AIJ(I,J,70)+PRCP 4050. |
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C**** 4050.5 |
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50 CONTINUE |
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C**** 4114. |
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400 IF(PLICE.LE.0.) GO TO 600 4114.5 |
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C**** 4115. |
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C**** LAND ICE 4115.5 |
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C**** 4116. |
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SNOW=GDATA(I,J,12) 4116.5 |
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TG1=GDATA(I,J,13) 4117. |
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TG2=GDATA(I,J,14) 4117.5 |
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BENRGP=BENRGP+ENRGP*PLICE 4118. |
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AIJ(I,J,67)=AIJ(I,J,67)+ENRGP 4118.5 |
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HC1=HC1I+SNOW*SHI 4119. |
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RUN0=0. 4119.5 |
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if(j.eq.-42)then |
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print *,' J=',J |
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print *,TPRCP,EPRCP,-TG1*HC1 |
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endif |
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IF(TPRCP.LT.0.) GO TO 480 4120. |
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IF(EPRCP.LT.-TG1*HC1) GO TO 460 4120.5 |
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C**** RAIN HEATS UP TG1 TO FREEZING POINT AND MELTS SOME SNOW OR ICE 4121. |
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DWATER=(TG1*HC1+EPRCP)/LHM 4121.5 |
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TG1=0. 4122. |
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RUN0=DWATER+PRCP 4122.5 |
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c |
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c RUNS0 does not include runoff due melting of land ice |
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RUNS0=DMIN1(DWATER,SNOW+FRMDICE(J))+PRCP |
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if(j.eq.-42)then |
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print *,'FRMDICE J=',J |
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print *,FRMDICE(J),SNOW,DWATER |
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endif |
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IF(DWATER.GT.SNOW) THEN |
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FRMDICE(j)=FRMDICE(j)-(DWATER-SNOW) |
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if( FRMDICE(j).lt.0.0) FRMDICE(j)=0.0 |
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if(j.eq.-42)then |
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print *,'After melting',FRMDICE(J) |
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endif |
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ENDIF |
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c |
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IF(DWATER.GT.SNOW) GO TO 440 4123. |
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C**** RAIN MELTS SOME SNOW 4123.5 |
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SNOW=SNOW-DWATER 4124. |
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GO TO 580 4124.5 |
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C**** RAIN MELTS ALL SNOW AND SOME ICE, ICE MOVES UP THROUGH THE LAYERS 4125. |
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440 DIFS=SNOW-DWATER 4125.5 |
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SNOW=0. 4126. |
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TG1=-TG2*DIFS/ACE1I 4126.5 |
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EDIFS=DIFS*(TG2*SHI-LHM) 4127. |
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ERUN2=EDIFS 4127.5 |
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GO TO 560 4128. |
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C**** RAIN COOLS TO FREEZING POINT AND HEATS UP TG1 4128.5 |
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460 TG1=TG1+EPRCP/HC1 4129. |
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RUN0=PRCP 4129.5 |
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if(j.eq.-42)then |
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print *,'After 460 TG1=',TG1,'PRCP=',PRCP |
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endif |
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c For runoff added on 7/30/03 |
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RUNS0=RUN0 |
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GO TO 590 4130. |
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C**** SNOW INCREASES SNOW AMOUNT AND SNOW TEMPERATURE RECOMPUTES TG1 4130.5 |
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480 TG1=(TG1*HC1+EPRCP)/(HC1+PRCP*SHI) 4131. |
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SNOW=SNOW+PRCP 4131.5 |
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if(j.eq.-42)then |
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print *,'After 480 TG1=',TG1,'SNOW=',SNOW |
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endif |
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c GO TO 580 |
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c IF(SNOW.LE.ACE1I) GO TO 580 4132. |
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IF(SNOW.LE.4.0*ACE1I) GO TO 580 |
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c 4.*ACE1I=360 kg/m^2 of snow, for used function for show density |
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c this corresponds to 1 m deep show. |
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C**** SNOW IS COMPACTED INTO ICE, ICE MOVES DOWN THROUGH THE LAYERS 4132.5 |
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c DIFS=SNOW-.9*ACE1I 4133. |
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c SNOW=.9*ACE1I 4133.5 |
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DIFS=SNOW-4.*ACE1I |
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SNOW=4.*ACE1I |
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FRMDICE(j)=FRMDICE(j)+DIFS |
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FRMDICE(j)=0.0 |
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if(j.eq.-42)then |
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print *,'Before 560 DIFS=',DIFS,'SNOW=',SNOW |
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print *,'FRMDICE(j)=',FRMDICE(j) |
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endif |
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EDIFS=DIFS*(TG1*SHI-LHM) 4134. |
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ERUN2=DIFS*(TG2*SHI-LHM) 4134.5 |
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GDATA(I,J,14)=TG2+(TG1-TG2)*DIFS/ACE2LI 4135. |
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560 BEDIFS=BEDIFS+EDIFS*PLICE 4135.5 |
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AIJ(I,J,69)=AIJ(I,J,69)+EDIFS 4136. |
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BDIFS=BDIFS+DIFS*PLICE 4136.5 |
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DIFSS=DIFSS+DIFS*PLICE 4137. |
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BERUN2=BERUN2+ERUN2*PLICE 4137.5 |
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AIJ(I,J,72)=AIJ(I,J,72)+ERUN2 4138. |
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BRUN2=BRUN2+DIFS*PLICE 4138.5 |
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580 GDATA(I,J,12)=SNOW 4139. |
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590 GDATA(I,J,13)=TG1 4139.5 |
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BRUN0=BRUN0+RUN0*PLICE 4140. |
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BRUNS0=BRUNS0+RUNS0*PLICE |
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if(j.eq.-42)then |
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print *,'After 590 RUNS0=',RUNS0,'RUN0=',RUN0 |
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endif |
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c |
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RUN0S=RUN0S+RUN0*PLICE 4140.5 |
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AIJ(I,J,33)=AIJ(I,J,33)+RUN0 4141. |
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C**** 4141.5 |
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600 IF(PEARTH.LE.0.) GO TO 940 4142. |
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C**** 4142.5 |
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C**** EARTH 4143. |
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C**** 4143.5 |
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SNOW=GDATA(I,J,2) 4144. |
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TG1=GDATA(I,J,4) 4144.5 |
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WTR1=GDATA(I,J,5) 4145. |
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ACE1=GDATA(I,J,6) 4145.5 |
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BENRGP=BENRGP+ENRGP*PEARTH 4146. |
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AIJ(I,J,68)=AIJ(I,J,68)+ENRGP 4146.5 |
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WFC1=VDATA(I,J,9) 4147. |
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WFC2=VDATA(I,J,10) |
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CHI1=(WTR1+ACE1)/WFC1 4147.5 |
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HC1=HC1DE+WTR1*SHW+(ACE1+SNOW)*SHI 4148. |
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RUN0=0. 4148.5 |
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ERUN0=0. 4149. |
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IF(TPRCP.LT.0.) GO TO 660 4149.5 |
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IF(TG1.LE.0.) GO TO 620 4150. |
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C**** RAIN ON GROUND ABOVE FREEZING POINT, RECOMPUTE TG1 4150.5 |
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TG1=(TG1*HC1+EPRCP)/(HC1+PRCP*SHW) 4151. |
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RUN0=DMAX1(PRCP*.5*CHI1,PRCP+WTR1-WFC1) 4151.5 |
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WTR1=WTR1+(PRCP-RUN0) 4152. |
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ERUN0=TG1*RUN0*SHW 4152.5 |
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GO TO 890 4153. |
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620 IF(EPRCP.LT.-TG1*HC1) GO TO 640 4153.5 |
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C**** RAIN HEATS UP TG1 TO FREEZING POINT 4154. |
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EPRCP=EPRCP+TG1*HC1 4154.5 |
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TG1=0. 4155. |
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IF(EPRCP.LT.(ACE1+SNOW)*LHM) GO TO 630 4155.5 |
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C**** RAIN MELTS SNOW AND ICE AND HEATS UP TG1 ABOVE FREEZING POINT 4156. |
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RUN0=DMAX1((PRCP+SNOW)*.5*CHI1,PRCP+SNOW+WTR1+ACE1-WFC1) 4156.5 |
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WTR1=WTR1+ACE1+SNOW+(PRCP-RUN0) 4157. |
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TG1=(EPRCP-(ACE1+SNOW)*LHM)/(HC1DE+(WTR1+RUN0)*SHW) 4157.5 |
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ACE1=0. 4158. |
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SNOW=0. 4158.5 |
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ERUN0=TG1*RUN0*SHW 4159. |
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GO TO 880 4159.5 |
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C**** RAIN MELTS SOME SNOW AND ICE, TG1 IS AT FREEZING POINT 4160. |
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630 DWATER=EPRCP/LHM 4160.5 |
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DSNOW=DMIN1(SNOW,DWATER) 4161. |
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RUN0=DMAX1((PRCP+DSNOW)*.5*CHI1,PRCP+DSNOW+WTR1+ACE1-WFC1) 4161.5 |
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WTR1=WTR1+DWATER+PRCP-RUN0 4162. |
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IF(WTR1.LT.0.) WTR1=0. 4162.1 |
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SNOW=SNOW-DSNOW 4162.5 |
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ACE1=ACE1-DWATER+DSNOW 4163. |
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GO TO 880 4163.5 |
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C**** RAIN COOLS TO FREEZING POINT AND HEATS UP TG1 4164. |
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640 TG1=TG1+EPRCP/HC1 4164.5 |
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RUN0=DMAX1(PRCP*.5*CHI1,PRCP+ACE1-WFC1) 4165. |
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PRCP=PRCP-RUN0 4165.5 |
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IF(PRCP*LHM.LT.-TG1*HC1) GO TO 650 4166. |
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C**** SOME RAIN FREEZES AND TG1 HEATS UP TO FREEZING POINT 4166.5 |
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DICE=-TG1*HC1/LHM 4167. |
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TG1=0. 4167.5 |
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ACE1=ACE1+DICE 4168. |
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WTR1=PRCP-DICE 4168.5 |
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GO TO 890 4169. |
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C**** RAIN FREEZES AND HEATS UP TG1, BUT STILL BELOW FREEZING POINT 4169.5 |
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650 TG1=(TG1*HC1+PRCP*LHM)/(HC1+PRCP*SHI) 4170. |
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ACE1=ACE1+PRCP 4170.5 |
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GO TO 890 4171. |
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660 IF(TG1.LE.0.) GO TO 690 4171.5 |
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IF(-EPRCP.LT.TG1*HC1) GO TO 670 4172. |
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C**** NEW SNOW HEATS UP AND COOLS TG1 TO FREEZING POINT 4172.5 |
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EPRCP=EPRCP+TG1*HC1 4173. |
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TG1=0. 4173.5 |
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SNOW=PRCP 4174. |
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GO TO 700 4174.5 |
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C**** NEW SNOW HEATS UP TO FREEZING POINT AND COOLS TG1 4175. |
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670 TG1=TG1+EPRCP/HC1 4175.5 |
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IF(PRCP*LHM.LT.TG1*HC1) GO TO 680 4176. |
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C**** SOME NEW SNOW MELTS UNTIL TG1 COOLS TO FREEZING POINT 4176.5 |
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DWATER=TG1*HC1/LHM 4177. |
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TG1=0. 4177.5 |
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SNOW=PRCP-DWATER 4178. |
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RUN0=DMAX1(DWATER*.5*CHI1,DWATER+WTR1-WFC1) 4178.5 |
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WTR1=WTR1+(DWATER-RUN0) 4179. |
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GO TO 880 4179.5 |
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C**** ALL NEW SNOW MELTS, RECOMPUTE TG1 4180. |
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680 TG1=(TG1*HC1-PRCP*LHM)/(HC1+PRCP*SHW) 4180.5 |
| 286 |
|
|
RUN0=DMAX1(PRCP*.5*CHI1,PRCP+WTR1-WFC1) 4181. |
| 287 |
|
|
WTR1=WTR1+(PRCP-RUN0) 4181.5 |
| 288 |
|
|
ERUN0=TG1*RUN0*SHW 4182. |
| 289 |
|
|
GO TO 890 4182.5 |
| 290 |
|
|
690 SNOW=SNOW+PRCP 4183. |
| 291 |
|
|
C Restriction of SNOW cover |
| 292 |
|
|
c if(SNOW.gt.ACE1I)then |
| 293 |
|
|
c SNOW=ACE1I |
| 294 |
|
|
c endif |
| 295 |
|
|
C |
| 296 |
|
|
IF(WTR1.GT.0.) GO TO 700 4183.5 |
| 297 |
|
|
C**** NEW SNOW INCREASES SNOW AMOUNT AND SNOW TEMP RECOMPUTES TG1 4184. |
| 298 |
|
|
TG1=(TG1*HC1+EPRCP)/(HC1+PRCP*SHI) 4184.5 |
| 299 |
|
|
GO TO 880 4185. |
| 300 |
|
|
700 IF(-EPRCP.LT.WTR1*LHM) GO TO 710 4185.5 |
| 301 |
|
|
C**** GROUND WATER FREEZES, RECOMPUTE TG1 4186. |
| 302 |
|
|
ACE1=ACE1+WTR1 4186.5 |
| 303 |
|
|
HC1=HC1DE+(ACE1+SNOW)*SHI 4187. |
| 304 |
|
|
TG1=(EPRCP+WTR1*LHM)/HC1 4187.5 |
| 305 |
|
|
WTR1=0. 4188. |
| 306 |
|
|
GO TO 880 4188.5 |
| 307 |
|
|
C**** SOME GROUND WATER FREEZES UNTIL SNOW TEMP HEATS TO FREEZING POINT 4189. |
| 308 |
|
|
710 DICE=-EPRCP/LHM 4189.5 |
| 309 |
|
|
WTR1=WTR1-DICE 4190. |
| 310 |
|
|
ACE1=ACE1+DICE 4190.5 |
| 311 |
|
|
IF(WTR1+ACE1.GT.WFC1) WTR1=.99999*WTR1 4190.6 |
| 312 |
|
|
IF(WTR1+ACE1.GT.WFC1) ACE1=.99999*ACE1 4190.7 |
| 313 |
|
|
880 GDATA(I,J,2)=SNOW 4191. |
| 314 |
|
|
890 GDATA(I,J,4)=TG1 4191.5 |
| 315 |
|
|
GDATA(I,J,5)=WTR1 4192. |
| 316 |
|
|
GDATA(I,J,6)=ACE1 4192.5 |
| 317 |
|
|
BERUN0=BERUN0+ERUN0*PEARTH 4193. |
| 318 |
|
|
BRUN0=BRUN0+RUN0*PEARTH 4193.5 |
| 319 |
|
|
RUNS0=RUN0 |
| 320 |
|
|
BRUNS0=BRUNS0+RUNS0*PEARTH |
| 321 |
|
|
RUN0S=RUN0S+RUN0*PEARTH 4194. |
| 322 |
|
|
AIJ(I,J,32)=AIJ(I,J,32)+RUN0 4194.5 |
| 323 |
|
|
C**** 4195. |
| 324 |
|
|
C**** ACCUMULATE DIAGNOSTICS 4195.5 |
| 325 |
|
|
C**** 4196. |
| 326 |
|
|
940 DJ(JR,39)=DJ(JR,39)+ENRGP*DXYPJ 4196.5 |
| 327 |
|
|
DJ(JR,45)=DJ(JR,45)+DIFSS*DXYPJ 4197. |
| 328 |
|
|
DJ(JR,54)=DJ(JR,54)+RUN0S*DXYPJ 4197.5 |
| 329 |
|
|
AIJ(I,J,5)=AIJ(I,J,5)+PREC(I,J)*prlnd2total(j,mndriver) 4198. |
| 330 |
|
|
AIJ(I,J,23)=AIJ(I,J,23)+ENRGP 4198.5 |
| 331 |
|
|
960 CONTINUE 4199. |
| 332 |
|
|
BJ(J,39)=BJ(J,39)+BENRGP 4200. |
| 333 |
|
|
BJ(J,40)=BJ(J,40)+BERUN0 4201. |
| 334 |
|
|
BJ(J,41)=BJ(J,41)+BEDIFS 4201.5 |
| 335 |
|
|
BJ(J,43)=BJ(J,43)+BERUN2 4203. |
| 336 |
|
|
BJ(J,45)=BJ(J,45)+BDIFS 4204. |
| 337 |
|
|
C Runoff from first layer of soil including ice melting |
| 338 |
|
|
BJ(J,47)=BJ(J,47)+BRUN0 |
| 339 |
|
|
C Runoff from first layer of soil does not include ice melting |
| 340 |
|
|
BJ(J,54)=BJ(J,54)+BRUNS0 |
| 341 |
|
|
BJ(J,46)=BJ(J,46)+BRUN2 4206.5 |
| 342 |
|
|
#if ( defined OCEAN_3D || defined ML_2D ) |
| 343 |
|
|
C Runoff from first layer of soil does not include ice melting |
| 344 |
|
|
if(PLICE+PEARTH.gt.0.0)then |
| 345 |
|
|
arunoff(j)=arunoff(j)+BRUNS0/(PLICE+PEARTH) |
| 346 |
|
|
endif |
| 347 |
|
|
#endif` |
| 348 |
|
|
980 CONTINUE 4209.5 |
| 349 |
|
|
RETURN 4210. |
| 350 |
|
|
END 4210.5 |
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