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jscott |
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#include "ctrparam.h" |
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SUBROUTINE RADIA0 (IM,JM,CO2,READGHG) 4501. |
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C**** 4502. |
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C**** THIS SUBROUTINE SETS THE RADIATION CONTROL PARAMETERS AND 4503. |
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C**** CALCULATES AREA WEIGHTED LATITUDES FOR A STANDARD GRID ETC 4504. |
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C**** 4505. |
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#include "chem_para" |
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#include "chem_com" |
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REAL LT1,LT2 4506. |
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DIMENSION COSZ(IM,JM),COSZA(IM,JM) 4507. |
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DIMENSION SINJ(46),COSJ(46),RI(72),SINI(72),COSI(72) 4508. |
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COMMON/WORK5/LT1(72),LT2(72),SLT1(72),SLT2(72),S2LT1(72),S2LT2(72)4509. |
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* ,DEGLAT(46),DEGLON(72) 4510. |
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COMMON/SCJL/SINJ,COSJ |
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COMMON/CO2TRND/ALFFOR,CO2TR,YEARGT,CO2IN,INYRAD |
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C 4511. |
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C RADCOM: CONTROL/INPUT PARAMETERS 4512. |
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C 4513. |
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COMMON/RADCOM/VADATA(11,4,3),DGLAT(46),DGLON(72),TMINSR,FULGAS(18)4514. |
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A ,FRACSL,RATQSL,FOGTSL,PTLISO,TLGRAD,TKCICE,FGOLDU(18)4514.5 |
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B ,FLONO3,FRAYLE,FCLDTR,FCLDSR,FALGAE,FMARCL,FEMTRA(6) 4515. |
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C ,WETTRA,WETSRA,DMOICE,DMLICE,LICETK,NTRCE,FZASRA(6) 4515.5 |
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D ,ID5(5),ITR(4),IMG(2),ILG(2),LAPGAS,KWVCON,NORMS0,NV 4516. |
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E ,KEEPRH,KEEPAL,ISOSCT,IHGSCT,KFRACC,KGASSR,KAERSR 4516.5 |
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F ,MARCLD,LAYTOP,LMR,LMRP,JMLAT,IMLON,KFORCE,LASTVC 4517. |
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C 4517.5 |
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C BASIC RADCOM INPUT DATA 4518. |
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C 4518.5 |
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G ,PLE(40),HLB(40),TLB(40),TLT(40),TL(40),U0GAS(40,9) 4519. |
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H ,ULGAS(40,9),TRACER(40,4),RTAU(40),QL(40),RHL(40) 4519.5 |
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I ,POCEAN,PEARTH,POICE,PLICE,AGESN,SNOWE,SNOWOI,SNOWLI 4520. |
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J ,TGO,TGE,TGOI,TGLI,TS,WS,WEARTH,ZOICE,FSPARE(200) 4520.5 |
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K ,S0,COSZN,PVT(11),BXA(153),SRBXAL(15,2),FRC(5),LUXGAS4520.6 |
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L ,JYEAR,JDAY,JLAT,ILON,MEANAL,KALVIS,ISPARE(25),SGPS 4520.8 |
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C 5033. |
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C BASIC RADCOM OUTPUT DATA 5034. |
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C 5035. |
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c M ,TRDFLB(40),TRUFLB(40),TRNFLB(40),TRFCRL(40),TRSLCR 5036. |
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c N ,SRDFLB(40),SRUFLB(40),SRNFLB(40),SRFHRL(40),SRSLHR 5037. |
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c O ,SRIVIS,SROVIS,PLAVIS,SRINIR,SRONIR,PLANIR,SRXATM(4) 5038. |
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c P ,SRDVIS,SRUVIS,ALBVIS,SRDNIR,SRUNIR,ALBNIR,FSRNFG(4) 5039. |
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c Q ,SRTVIS,SRRVIS,SRAVIS,SRTNIR,SRRNIR,SRANIR,FTRUFG(4) 5040. |
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c R ,TRDFGW,TRUFGW,TRUFTW,BTEMPW,TRDFSL,TRUFSL,DTRUFG(4) 5041. |
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c S ,TRSLTS,TRSLTG,TRSLWV,TRSLBS,TTRUFG,LBOTCL,LTOPCL 5042. |
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! DATA TWOPI/6.283185/,ZERO1/1.E-5/,ZERO2/5.E-3/ 4521. |
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! 03/07/06 |
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DATA TWOPI/6.283185/,ZERO1/1.E-2/,ZERO2/5.E-3/ 4521. |
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C**** COMPUTE THE AREA WEIGHTED LATITUDES AND THEIR SINES AND COSINES 4522. |
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JMM1=JM-1 4523. |
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PHIS=-.25*TWOPI 4524. |
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SPHIS=-1. 4525. |
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CPHIS=0. 4526. |
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DO 20 J=1,JMM1 4527. |
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PHIN=(TWOPI/(JMM1+JMM1))*(J-.5*JM) 4528. |
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SPHIN=SIN(PHIN) 4529. |
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CPHIN=COS(PHIN) 4530. |
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PHIM=(PHIN*SPHIN+CPHIN-PHIS*SPHIS-CPHIS)/(SPHIN-SPHIS) 4531. |
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DEGLAT(J)=(360./TWOPI)*PHIM 4532. |
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SINJ(J)=SIN(PHIM) 4533. |
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COSJ(J)=COS(PHIM) 4534. |
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PHIS=PHIN 4535. |
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SPHIS=SPHIN 4536. |
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20 CPHIS=CPHIN 4537. |
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PHIN=.25*TWOPI 4538. |
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SPHIN=1. 4539. |
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CPHIN=0. 4540. |
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PHIM=(PHIN*SPHIN+CPHIN-PHIS*SPHIS-CPHIS)/(SPHIN-SPHIS) 4541. |
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DEGLAT(JM)=(360./TWOPI)*PHIM 4542. |
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SINJ(JM)=SIN(PHIM) 4543. |
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COSJ(JM)=COS(PHIM) 4544. |
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C**** COMPUTE THE SINES AND COSINES OF LONGITUDE 4545. |
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DO 40 I=1,IM 4546. |
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RI(I)=(TWOPI/IM)*(I-1) 4547. |
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DEGLON(I)=(360./IM)*(I-1) 4548. |
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SINI(I)=SIN(RI(I)) 4549. |
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40 COSI(I)=COS(RI(I)) 4550. |
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C**** MODIFY AND PRINT OUT THE RADIATION CONTROL PARAMETERS 4552. |
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IF (CO2.GT.0.) FULGAS(2)=CO2 4553.1 |
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DMOICE=10. 4553.11 |
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C Convert masking depth over land and ocean ice to meters of water |
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c DMOICE=0.01 |
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c DMLICE=0.01 |
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C Convert masking depth over land and ocean ice to meters of water |
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C FOR THE 'REAL' TRANSIENT EXPERIMENT USE CO2=-FLOAT(KTREND)-AVGAER 4553.15 |
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C TO USE THE DEFAULTS EXCEPT FOR CO2 SET CO2.GT.0. 4553.2 |
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KTREND=-CO2 4553.25 |
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print *,' KTREND=',KTREND |
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#ifdef PREDICTED_GASES |
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LAPGAS=0 |
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IMG(2)=9 |
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print *,' RADIA0 Chem ',1,READGHG,LAPGAS |
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#endif |
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IF (CO2.GT.0.) GO TO 50 4553.3 |
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NTRCE=1 4553.35 |
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ITR(1)=1 4553.4 |
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IF (KTREND.EQ.0) KFORCE=26789 4553.45 |
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FGOLDU(6)=1. 4553.5 |
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LAPGAS=2 4553.55 |
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C FULGAS(8)=0. 4553.6 |
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C FULGAS(9)=0. 4553.65 |
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C FGOLDU(1)=.005/.012 4553.7 |
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c 50 CALL RCOMP1 (21,0,60) 4553.75 |
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50 continue |
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print *,' RADIA0 JYEAR=',JYEAR,' JDAY=',JDAY |
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c IF (KTREND.GT.0) CALL FORSET(1958.,KTREND,1) 4553.8 |
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IF (KTREND.GT.0)then |
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TNOW=JYEAR+(JDAY-.5)/365. |
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if(KTREND.GT.20) TNOW=1765. |
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print *,' RADIA0 JYEAR=',JYEAR,' JDAY=',JDAY |
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if (KTREND.EQ.5)then |
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! print *,' TNOW=',TNOW |
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print *,' TREF=',TNOW |
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CALL FORSET(TNOW,KTREND,1) |
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else |
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! 04/18/2006 |
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print *,' TREF=',YEARGT |
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CALL FORSET(YEARGT,KTREND,1) |
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endif |
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endif |
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c 06/20/2005 |
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c CALL RCOMP1 (521,0,60) |
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print *,'Before CALL RCOMP1' |
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CALL RCOMP1 (521,0,60,KTREND) |
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print *,'After CALL RCOMP1' |
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c if(READGHG.lt.0.5) CALL WRITER (1,0) 4554. |
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RETURN 4555. |
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C**** 4556. |
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C**** 4557. |
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ENTRY COSZT (IM,JM,SIND,COSD,ROT1,ROT2,COSZ) 4558. |
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C**** 4559. |
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C**** THIS ENTRY COMPUTES THE ZENITH ANGLE WEIGHTED BY DAYTIME 4560. |
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C**** HOURS FROM ROT1 TO ROT2, GREENWICH MEAN TIME IN RADIANS. ROT1 4561. |
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C**** MUST BE BETWEEN 0 AND 2*PI. ROT2 MUST BE BETWEEN ROT1 AND 4562. |
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C**** ROT1+2*PI. I=1 MUST LIE ON THE INTERNATIONAL DATE LINE. 4563. |
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C**** 4564. |
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DROT=ROT2-ROT1 4565. |
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C**** COMPUTE THE SINES AND COSINES OF THE INITIAL AND FINAL GMT'S 4566. |
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100 SR1=SIN(ROT1) 4567. |
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CR1=COS(ROT1) 4568. |
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SR2=SIN(ROT2) 4569. |
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CR2=COS(ROT2) 4570. |
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C**** COMPUTE THE INITIAL AND FINAL LOCAL TIMES (MEASURED FROM NOON TO 4571. |
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C**** NOON) AND THEIR SINES AND COSINES 4572. |
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DO 120 I=1,IM 4573. |
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LT1(I)=ROT1+RI(I) 4574. |
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SLT1(I)=SR1*COSI(I)+CR1*SINI(I) 4575. |
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LT2(I)=ROT2+RI(I) 4576. |
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120 SLT2(I)=SR2*COSI(I)+CR2*SINI(I) 4577. |
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C**** 4578. |
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C**** CALCULATION FOR POLAR GRID BOXES 4579. |
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C**** 4580. |
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DO 200 J=1,JM,JMM1 4581. |
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SJSD=SINJ(J)*SIND 4582. |
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CJCD=COSJ(J)*COSD 4583. |
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IF(SJSD+CJCD.LE.ZERO1) GO TO 180 4584. |
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IF(SJSD-CJCD.GE.0.) GO TO 160 4585. |
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C**** AVERAGE COSZ FROM DAWN TO DUSK NEAR THE POLES 4586. |
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DUSK=ACOS(-SJSD/CJCD) 4587. |
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SDUSK=SQRT(CJCD*CJCD-SJSD*SJSD)/CJCD 4588. |
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DAWN=-DUSK 4589. |
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SDAWN=-SDUSK 4590. |
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COSZ(1,J)=(SJSD*(DUSK-DAWN)+CJCD*(SDUSK-SDAWN))/TWOPI 4591. |
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GO TO 200 4592. |
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C**** CONSTANT DAYLIGHT NEAR THE POLES 4593. |
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160 COSZ(1,J)=SJSD 4594. |
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GO TO 200 4595. |
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C**** CONSTANT NIGHTIME NEAR THE POLES 4596. |
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180 COSZ(1,J)=0. 4597. |
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200 CONTINUE 4598. |
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C**** 4599. |
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C**** LOOP OVER NON-POLAR LATITUDES 4600. |
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C**** 4601. |
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DO 500 J=2,JMM1 4602. |
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SJSD=SINJ(J)*SIND 4603. |
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CJCD=COSJ(J)*COSD 4604. |
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IF(SJSD+CJCD.LE.ZERO1) GO TO 460 4605. |
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IF(SJSD-CJCD.GE.0.) GO TO 420 4606. |
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C**** COMPUTE DAWN AND DUSK (AT LOCAL TIME) AND THEIR SINES 4607. |
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DUSK=ACOS(-SJSD/CJCD) 4608. |
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SDUSK=SQRT(CJCD*CJCD-SJSD*SJSD)/CJCD 4609. |
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DAWN=-DUSK 4610. |
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SDAWN=-SDUSK 4611. |
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C**** NEITHER CONSTANT DAYTIME NOR CONSTANT NIGHTIME AT THIS LATITUDE, 4612. |
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C**** LOOP OVER LONGITUDES 4613. |
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! 03/07/06 solar radiation |
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ZERO2=ZERO1/CJCD |
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DO 400 I=1,IM 4614. |
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C**** FORCE DUSK TO LIE BETWEEN LT1 AND LT1+2*PI 4615. |
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IF(DUSK.GT.LT1(I)+ZERO2) GO TO 220 4616. |
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DUSK=DUSK+TWOPI 4617. |
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DAWN=DAWN+TWOPI 4618. |
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220 IF(DAWN.LT.LT2(I)-ZERO2) GO TO 240 4619. |
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C**** CONTINUOUS NIGHTIME FROM INITIAL TO FINAL TIME 4620. |
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COSZ(I,J)=0. 4621. |
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GO TO 400 4622. |
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240 IF(DAWN.GE.LT1(I)) GO TO 300 4623. |
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IF(DUSK.LT.LT2(I)) GO TO 260 4624. |
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C**** CONTINUOUS DAYLIGHT FROM INITIAL TIME TO FINAL TIME 4625. |
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COSZ(I,J)=SJSD+CJCD*(SLT2(I)-SLT1(I))/DROT 4626. |
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GO TO 400 4627. |
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260 IF(DAWN+TWOPI.LT.LT2(I)-ZERO2) GO TO 280 4628. |
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C**** DAYLIGHT AT INITIAL TIME AND NIGHT AT FINAL TIME 4629. |
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COSZ(I,J)=(SJSD*(DUSK-LT1(I))+CJCD*(SDUSK-SLT1(I)))/DROT 4630. |
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GO TO 400 4631. |
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C**** DAYLIGHT AT INITIAL AND FINAL TIMES WITH NIGHTIME IN BETWEEN 4632. |
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280 COSZ(I,J)=(SJSD*(LT2(I)-DAWN-TWOPI+DUSK-LT1(I))+CJCD* 4633. |
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* (SLT2(I)-SDAWN+SDUSK-SLT1(I)))/DROT 4634. |
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GO TO 400 4635. |
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300 IF(DUSK.LT.LT2(I)) GO TO 320 4636. |
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C**** NIGHT AT INITIAL TIME AND DAYLIGHT AT FINAL TIME 4637. |
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COSZ(I,J)=(SJSD*(LT2(I)-DAWN)+CJCD*(SLT2(I)-SDAWN))/DROT 4638. |
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GO TO 400 4639. |
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C**** NIGHTIME AT INITIAL AND FINAL TIMES WITH DAYLIGHT IN BETWEEN 4640. |
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320 COSZ(I,J)=(SJSD*(DUSK-DAWN)+CJCD*(SDUSK-SDAWN))/DROT 4641. |
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400 CONTINUE 4642. |
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GO TO 500 4643. |
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C**** CONSTANT DAYLIGHT AT THIS LATITUDE 4644. |
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420 DO 440 I=1,IM 4645. |
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440 COSZ(I,J)=SJSD+CJCD*(SLT2(I)-SLT1(I))/DROT 4646. |
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GO TO 500 4647. |
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C**** CONSTANT NIGHTIME AT THIS LATITUDE 4648. |
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460 DO 480 I=1,IM 4649. |
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480 COSZ(I,J)=0. 4650. |
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500 CONTINUE 4651. |
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RETURN 4652. |
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C**** 4653. |
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C**** 4654. |
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ENTRY COSZS (IM,JM,SIND,COSD,ROT1,ROT2,COSZ,COSZA) 4655. |
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C**** 4656. |
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C**** THIS ENTRY COMPUTES THE ZENITH ANGLE TWICE, FIRST WEIGHTED BY THE 4657. |
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C**** DAYTIME HOURS FROM ROT1 TO ROT2 AND SECONDLY WEIGHTED BY THE 4658. |
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C**** INCIDENT SUN LIGHT FROM ROT1 TO ROT2. COSZT MUST HAVE BEEN 4659. |
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C**** CALLED JUST PREVIOUSLY. 4660. |
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C**** 4661. |
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DROT=ROT2-ROT1 4662. |
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C**** COMPUTE THE SINES AND COSINES OF THE INITIAL AND FINAL GMT'S 4663. |
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SR1=SIN(ROT1) 4664. |
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CR1=COS(ROT1) 4665. |
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SR2=SIN(ROT2) 4666. |
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CR2=COS(ROT2) 4667. |
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C**** COMPUTE THE INITIAL AND FINAL LOCAL TIMES (MEASURED FROM NOON TO 4668. |
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C**** NOON) AND THEIR SINES AND COSINES 4669. |
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DO 520 I=1,IM 4670. |
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LT1(I)=ROT1+RI(I) 4671. |
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SLT1(I)=SR1*COSI(I)+CR1*SINI(I) 4672. |
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CLT1=CR1*COSI(I)-SR1*SINI(I) 4673. |
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S2LT1(I)=2.*SLT1(I)*CLT1 4674. |
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LT2(I)=ROT2+RI(I) 4675. |
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SLT2(I)=SR2*COSI(I)+CR2*SINI(I) 4676. |
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CLT2=CR2*COSI(I)-SR2*SINI(I) 4677. |
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520 S2LT2(I)=2.*SLT2(I)*CLT2 4678. |
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C**** 4679. |
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C**** CALCULATION FOR POLAR GRID BOXES 4680. |
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C**** 4681. |
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DO 600 J=1,JM,JMM1 4682. |
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SJSD=SINJ(J)*SIND 4683. |
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CJCD=COSJ(J)*COSD 4684. |
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IF(SJSD+CJCD.LE.ZERO1) GO TO 580 4685. |
| 265 |
|
|
IF(SJSD-CJCD.GE.0.) GO TO 560 4686. |
| 266 |
|
|
C**** AVERAGE COSZ FROM DAWN TO DUSK NEAR THE POLES 4687. |
| 267 |
|
|
CDUSK=-SJSD/CJCD 4688. |
| 268 |
|
|
DUSK=ACOS(CDUSK) 4689. |
| 269 |
|
|
SDUSK=SQRT(CJCD*CJCD-SJSD*SJSD)/CJCD 4690. |
| 270 |
|
|
S2DUSK=2.*SDUSK*CDUSK 4691. |
| 271 |
|
|
DAWN=-DUSK 4692. |
| 272 |
|
|
SDAWN=-SDUSK 4693. |
| 273 |
|
|
S2DAWN=-S2DUSK 4694. |
| 274 |
|
|
ECOSZ=SJSD*(DUSK-DAWN)+CJCD*(SDUSK-SDAWN) 4695. |
| 275 |
|
|
ECOSQZ=SJSD*ECOSZ+CJCD*(SJSD*(SDUSK-SDAWN)+ 4696. |
| 276 |
|
|
* .5*CJCD*(DUSK-DAWN+.5*(S2DUSK-S2DAWN))) 4697. |
| 277 |
|
|
COSZ(1,J)=ECOSZ/TWOPI 4698. |
| 278 |
|
|
COSZA(1,J)=ECOSQZ/ECOSZ 4699. |
| 279 |
|
|
GO TO 600 4700. |
| 280 |
|
|
C**** CONSTANT DAYLIGHT NEAR THE POLES 4701. |
| 281 |
|
|
560 ECOSZ=SJSD*TWOPI 4702. |
| 282 |
|
|
ECOSQZ=SJSD*ECOSZ+.5*CJCD*CJCD*TWOPI 4703. |
| 283 |
|
|
COSZ(1,J)=ECOSZ/TWOPI 4704. |
| 284 |
|
|
COSZA(1,J)=ECOSQZ/ECOSZ 4705. |
| 285 |
|
|
GO TO 600 4706. |
| 286 |
|
|
C**** CONSTANT NIGHTIME NEAR THE POLES 4707. |
| 287 |
|
|
580 COSZ(1,J)=0. 4708. |
| 288 |
|
|
COSZA(1,J)=0. 4709. |
| 289 |
|
|
600 CONTINUE 4710. |
| 290 |
|
|
C**** 4711. |
| 291 |
|
|
C**** LOOP OVER NON-POLAR LATITUDES 4712. |
| 292 |
|
|
C**** 4713. |
| 293 |
|
|
DO 900 J=2,JMM1 4714. |
| 294 |
|
|
SJSD=SINJ(J)*SIND 4715. |
| 295 |
|
|
CJCD=COSJ(J)*COSD 4716. |
| 296 |
|
|
IF(SJSD+CJCD.LE.ZERO1) GO TO 860 4717. |
| 297 |
|
|
IF(SJSD-CJCD.GE.0.) GO TO 820 4718. |
| 298 |
|
|
C**** COMPUTE DAWN AND DUSK (AT LOCAL TIME) AND THEIR SINES 4719. |
| 299 |
|
|
CDUSK=-SJSD/CJCD 4720. |
| 300 |
|
|
DUSK=ACOS(CDUSK) 4721. |
| 301 |
|
|
SDUSK=SQRT(CJCD*CJCD-SJSD*SJSD)/CJCD 4722. |
| 302 |
|
|
S2DUSK=2.*SDUSK*CDUSK 4723. |
| 303 |
|
|
DAWN=-DUSK 4724. |
| 304 |
|
|
SDAWN=-SDUSK 4725. |
| 305 |
|
|
S2DAWN=-S2DUSK 4726. |
| 306 |
|
|
C**** NEITHER CONSTANT DAYTIME NOR CONSTANT NIGHTIME AT THIS LATITUDE, 4727. |
| 307 |
|
|
C**** LOOP OVER LONGITUDES 4728. |
| 308 |
|
|
! 03/07/06 solar radiation |
| 309 |
|
|
ZERO2=ZERO1/CJCD |
| 310 |
|
|
DO 800 I=1,IM 4729. |
| 311 |
|
|
C**** FORCE DUSK TO LIE BETWEEN LT1 AND LT1+2*PI 4730. |
| 312 |
|
|
IF(DUSK.GT.LT1(I)+ZERO2) GO TO 620 4731. |
| 313 |
|
|
DUSK=DUSK+TWOPI 4732. |
| 314 |
|
|
DAWN=DAWN+TWOPI 4733. |
| 315 |
|
|
620 IF(DAWN.LT.LT2(I)-ZERO2) GO TO 640 4734. |
| 316 |
|
|
C**** CONTINUOUS NIGHTIME FROM INITIAL TO FINAL TIME 4735. |
| 317 |
|
|
COSZ(I,J)=0. 4736. |
| 318 |
|
|
COSZA(I,J)=0. 4737. |
| 319 |
|
|
GO TO 800 4738. |
| 320 |
|
|
640 IF(DAWN.GE.LT1(I)) GO TO 700 4739. |
| 321 |
|
|
IF(DUSK.LT.LT2(I)) GO TO 660 4740. |
| 322 |
|
|
C**** CONTINUOUS DAYLIGHT FROM INITIAL TIME TO FINAL TIME 4741. |
| 323 |
|
|
ECOSZ=SJSD*DROT+CJCD*(SLT2(I)-SLT1(I)) 4742. |
| 324 |
|
|
ECOSQZ=SJSD*ECOSZ+CJCD*(SJSD*(SLT2(I)-SLT1(I))+ 4743. |
| 325 |
|
|
* .5*CJCD*(DROT+.5*(S2LT2(I)-S2LT1(I)))) 4744. |
| 326 |
|
|
COSZ(I,J)=ECOSZ/DROT 4745. |
| 327 |
|
|
COSZA(I,J)=ECOSQZ/ECOSZ 4746. |
| 328 |
|
|
GO TO 800 4747. |
| 329 |
|
|
660 IF(DAWN+TWOPI.LT.LT2(I)-ZERO2) GO TO 680 4748. |
| 330 |
|
|
C**** DAYLIGHT AT INITIAL TIME AND NIGHT AT FINAL TIME 4749. |
| 331 |
|
|
ECOSZ=SJSD*(DUSK-LT1(I))+CJCD*(SDUSK-SLT1(I)) 4750. |
| 332 |
|
|
ECOSQZ=SJSD*ECOSZ+CJCD*(SJSD*(SDUSK-SLT1(I))+ 4751. |
| 333 |
|
|
* .5*CJCD*(DUSK-LT1(I)+.5*(S2DUSK-S2LT1(I)))) 4752. |
| 334 |
|
|
COSZ(I,J)=ECOSZ/DROT 4753. |
| 335 |
|
|
COSZA(I,J)=ECOSQZ/ECOSZ 4754. |
| 336 |
|
|
GO TO 800 4755. |
| 337 |
|
|
C**** DAYLIGHT AT INITIAL AND FINAL TIMES WITH NIGHTIME IN BETWEEN 4756. |
| 338 |
|
|
680 ECOSZ=SJSD*(DROT-DAWN-TWOPI+DUSK)+ 4757. |
| 339 |
|
|
* CJCD*(SLT2(I)-SDAWN+SDUSK-SLT1(I)) 4758. |
| 340 |
|
|
ECOSQZ=SJSD*ECOSZ+CJCD*(SJSD*(SDUSK-SLT1(I)+SLT2(I)-SDAWN)+ 4759. |
| 341 |
|
|
* .5*CJCD*(DUSK+DROT-DAWN-TWOPI+ 4760. |
| 342 |
|
|
* .5*(S2DUSK-S2LT1(I)+S2LT2(I)-S2DAWN))) 4761. |
| 343 |
|
|
COSZ(I,J)=ECOSZ/DROT 4762. |
| 344 |
|
|
COSZA(I,J)=ECOSQZ/ECOSZ 4763. |
| 345 |
|
|
GO TO 800 4764. |
| 346 |
|
|
700 IF(DUSK.LT.LT2(I)) GO TO 720 4765. |
| 347 |
|
|
C**** NIGHT AT INITIAL TIME AND DAYLIGHT AT FINAL TIME 4766. |
| 348 |
|
|
ECOSZ=SJSD*(LT2(I)-DAWN)+CJCD*(SLT2(I)-SDAWN) 4767. |
| 349 |
|
|
ECOSQZ=SJSD*ECOSZ+CJCD*(SJSD*(SLT2(I)-SDAWN)+ 4768. |
| 350 |
|
|
* .5*CJCD*(LT2(I)-DAWN+.5*(S2LT2(I)-S2DAWN))) 4769. |
| 351 |
|
|
COSZ(I,J)=ECOSZ/DROT 4770. |
| 352 |
|
|
COSZA(I,J)=ECOSQZ/ECOSZ 4771. |
| 353 |
|
|
GO TO 800 4772. |
| 354 |
|
|
C**** NIGHTIME AT INITIAL AND FINAL TIMES WITH DAYLIGHT IN BETWEEN 4773. |
| 355 |
|
|
720 ECOSZ=SJSD*(DUSK-DAWN)+CJCD*(SDUSK-SDAWN) 4774. |
| 356 |
|
|
ECOSQZ=SJSD*ECOSZ+CJCD*(SJSD*(SDUSK-SDAWN)+ 4775. |
| 357 |
|
|
* .5*CJCD*(DUSK-DAWN+.5*(S2DUSK-S2DAWN))) 4776. |
| 358 |
|
|
COSZ(I,J)=ECOSZ/DROT 4777. |
| 359 |
|
|
COSZA(I,J)=ECOSQZ/ECOSZ 4778. |
| 360 |
|
|
800 CONTINUE 4779. |
| 361 |
|
|
GO TO 900 4780. |
| 362 |
|
|
C**** CONSTANT DAYLIGHT AT THIS LATITUDE 4781. |
| 363 |
|
|
820 DO 840 I=1,IM 4782. |
| 364 |
|
|
ECOSZ=SJSD*DROT+CJCD*(SLT2(I)-SLT1(I)) 4783. |
| 365 |
|
|
ECOSQZ=SJSD*ECOSZ+CJCD*(SJSD*(SLT2(I)-SLT1(I))+ 4784. |
| 366 |
|
|
* .5*CJCD*(DROT+.5*(S2LT2(I)-S2LT1(I)))) 4785. |
| 367 |
|
|
COSZ(I,J)=ECOSZ/DROT 4786. |
| 368 |
|
|
840 COSZA(I,J)=ECOSQZ/ECOSZ 4787. |
| 369 |
|
|
GO TO 900 4788. |
| 370 |
|
|
C**** CONSTANT NIGHTIME AT THIS LATITUDE 4789. |
| 371 |
|
|
860 DO 880 I=1,IM 4790. |
| 372 |
|
|
COSZ(I,J)=0. 4791. |
| 373 |
|
|
880 COSZA(I,J)=0. 4792. |
| 374 |
|
|
900 CONTINUE 4793. |
| 375 |
|
|
RETURN 4794. |
| 376 |
|
|
END 4795. |
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