| 1 | ! |
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| 2 | ! $Header$ |
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| 3 | ! |
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| 4 | c |
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| 5 | c |
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| 6 | SUBROUTINE hydrol(dtime,pctsrf,rain_fall,snow_fall,evap, |
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| 7 | . agesno, tsol,qsol,snow,runoff) |
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| 8 | IMPLICIT none |
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| 9 | c====================================================================== |
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| 10 | c Auteur(s): Z.X. Li (LMD/CNRS) |
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| 11 | c date: 19940414 |
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| 12 | c====================================================================== |
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| 13 | c |
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| 14 | c Traitement de l'hydrologie du sol |
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| 15 | c --------------------------------- |
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| 16 | c rain_fall: taux de pluie |
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| 17 | c snow_fall: taux de neige |
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| 18 | c agesno: age de la neige |
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| 19 | c evap: taux d'evaporation |
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| 20 | c tsol: temperature du sol |
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| 21 | c qsol: humidite du sol |
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| 22 | c snow: couverture neigeuse |
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| 23 | C |
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| 24 | #include "dimensions.h" |
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| 25 | #include "dimphy.h" |
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| 26 | #include "YOMCST.h" |
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| 27 | #include "indicesol.h" |
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| 28 | c |
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| 29 | REAL chasno ! epaisseur du sol: 0.15 m |
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| 30 | PARAMETER (chasno=3.334E+05/(2.3867E+06*0.15)) |
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| 31 | REAL mx_eau_sol |
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| 32 | PARAMETER (mx_eau_sol=150.0) |
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| 33 | c |
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| 34 | REAL dtime |
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| 35 | REAL pctsrf(klon,nbsrf) |
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| 36 | REAL snow(klon,nbsrf), tsol(klon,nbsrf), qsol(klon,nbsrf) |
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| 37 | REAL snow_fall(klon), rain_fall(klon), evap(klon) |
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| 38 | REAL runoff(klon), agesno(klon) |
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| 39 | C |
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| 40 | INTEGER i, is |
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| 41 | REAL subli, fsno |
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| 42 | C----------------------------------------------------------------------- |
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| 43 | DO 99999 i = 1, klon |
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| 44 | c |
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| 45 | runoff(i) = 0.0 |
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| 46 | c |
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| 47 | is = is_ter |
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| 48 | snow(i,is) = snow(i,is) + snow_fall(i) * dtime * pctsrf(i,is) |
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| 49 | IF (pctsrf(i,is) .GT. epsfra) THEN |
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| 50 | subli = MIN(evap(i)*dtime,snow(i,is)) |
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| 51 | snow(i,is) = snow(i,is) - subli |
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| 52 | fsno = MIN(MAX((tsol(i,is)-RTT)/chasno,0.0),snow(i,is)) |
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| 53 | snow(i,is) = snow(i,is) - fsno |
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| 54 | tsol(i,is) = tsol(i,is) - fsno*chasno |
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| 55 | qsol(i,is) = qsol(i,is) + (rain_fall(i)-evap(i))*dtime |
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| 56 | . + subli + fsno |
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| 57 | qsol(i,is) = MAX(qsol(i,is),0.0) |
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| 58 | runoff(i) = runoff(i) + MAX(qsol(i,is)-mx_eau_sol, 0.0) |
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| 59 | . * pctsrf(i,is) |
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| 60 | qsol(i,is) = MIN(qsol(i,is),mx_eau_sol) |
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| 61 | ccc ELSE |
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| 62 | ccc snow(i,is) = 0.0 |
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| 63 | ccc qsol(i,is) = 0.0 |
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| 64 | ccc tsol(i,is) = 0.0 |
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| 65 | ENDIF |
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| 66 | c |
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| 67 | is = is_lic |
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| 68 | snow(i,is) = snow(i,is) + snow_fall(i) * dtime * pctsrf(i,is) |
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| 69 | IF (pctsrf(i,is) .GT. epsfra) THEN |
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| 70 | subli = MIN(evap(i)*dtime,snow(i,is)) |
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| 71 | snow(i,is) = snow(i,is) - subli |
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| 72 | fsno = MIN(MAX((tsol(i,is)-RTT)/chasno,0.0),snow(i,is)) |
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| 73 | snow(i,is) = snow(i,is) - fsno |
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| 74 | tsol(i,is) = tsol(i,is) - fsno*chasno |
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| 75 | qsol(i,is) = qsol(i,is) + (rain_fall(i)-evap(i))*dtime |
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| 76 | . + subli + fsno |
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| 77 | qsol(i,is) = MAX(qsol(i,is),0.0) |
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| 78 | runoff(i) = runoff(i) + MAX(qsol(i,is)-mx_eau_sol, 0.0) |
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| 79 | . * pctsrf(i,is) |
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| 80 | qsol(i,is) = MIN(qsol(i,is),mx_eau_sol) |
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| 81 | c je limite la temperature a RTT-1.8 (il faudrait aussi prendre l'eau de |
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| 82 | c la fonte) (Laurent Li, le 14mars98): |
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| 83 | cIM cf GK tsol(i,is) = MIN(tsol(i,is),RTT-1.8) |
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| 84 | cIM cf GK : la glace fond a 0C, non pas a -1.8 |
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| 85 | tsol(i,is) = MIN(tsol(i,is),RTT) |
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| 86 | c |
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| 87 | ccc ELSE |
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| 88 | ccc snow(i,is) = 0.0 |
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| 89 | ccc qsol(i,is) = 0.0 |
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| 90 | ccc tsol(i,is) = 0.0 |
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| 91 | ENDIF |
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| 92 | c |
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| 93 | is = is_sic |
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| 94 | qsol(i,is) = 0.0 |
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| 95 | snow(i,is) = snow(i,is) + snow_fall(i) * dtime * pctsrf(i,is) |
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| 96 | IF (pctsrf(i,is) .GT. epsfra) THEN |
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| 97 | subli = MIN(evap(i)*dtime,snow(i,is)) |
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| 98 | snow(i,is) = snow(i,is) - subli |
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| 99 | fsno = MIN(MAX((tsol(i,is)-RTT)/chasno,0.0),snow(i,is)) |
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| 100 | snow(i,is) = snow(i,is) - fsno |
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| 101 | tsol(i,is) = tsol(i,is) - fsno*chasno |
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| 102 | c je limite la temperature a RTT-1.8 (il faudrait aussi prendre l'eau de |
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| 103 | c la fonte) (Laurent Li, le 14mars98): |
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| 104 | cIM cf GK tsol(i,is) = MIN(tsol(i,is),RTT-1.8) |
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| 105 | cIM cf GK : la glace fond a 0C, non pas a -1.8 |
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| 106 | tsol(i,is) = MIN(tsol(i,is),RTT) |
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| 107 | c |
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| 108 | ccc ELSE |
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| 109 | ccc snow(i,is) = 0.0 |
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| 110 | ccc tsol(i,is) = 0.0 |
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| 111 | ENDIF |
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| 112 | c |
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| 113 | agesno(i) = (agesno(i)+ (1.-agesno(i)/50.)*dtime/86400.) |
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| 114 | . * EXP(-1.*MAX(0.0,snow_fall(i))*dtime/0.3) |
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| 115 | agesno(i) = MAX(agesno(i),0.0) |
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| 116 | c |
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| 117 | 99999 CONTINUE |
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| 118 | c |
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| 119 | RETURN |
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| 120 | END |
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