4 |
|
|
5 |
contains |
contains |
6 |
|
|
7 |
SUBROUTINE calcul_fluxs(nisurf, dtime, tsurf, p1lay, cal, beta, coef1lay, & |
SUBROUTINE calcul_fluxs(dtime, tsurf, p1lay, cal, beta, coef1lay, ps, & |
8 |
ps, qsurf, radsol, dif_grnd, t1lay, q1lay, u1lay, v1lay, petAcoef, & |
qsurf, radsol, dif_grnd, t1lay, q1lay, u1lay, v1lay, petAcoef, & |
9 |
peqAcoef, petBcoef, peqBcoef, tsurf_new, evap, fluxlat, fluxsens, & |
peqAcoef, petBcoef, peqBcoef, tsurf_new, evap, fluxlat, flux_t, & |
10 |
dflux_s, dflux_l) |
dflux_s, dflux_l) |
11 |
|
|
12 |
! Cette routine calcule les fluxs en h et q à l'interface et une |
! Cette routine calcule les flux en h et q à l'interface et une |
13 |
! température de surface. |
! température de surface. |
14 |
|
|
15 |
! L. Fairhead April 2000 |
! L. Fairhead, April 2000 |
16 |
|
|
17 |
USE abort_gcm_m, ONLY: abort_gcm |
USE fcttre, ONLY: foede, foeew |
|
USE indicesol, ONLY: is_ter |
|
|
USE fcttre, ONLY: dqsatl, dqsats, foede, foeew, qsatl, qsats, thermcep |
|
|
USE interface_surf, ONLY: run_off |
|
18 |
use nr_util, only: assert_eq |
use nr_util, only: assert_eq |
19 |
USE suphec_m, ONLY: rcpd, rd, retv, rkappa, rlstt, rlvtt, rtt |
USE suphec_m, ONLY: rcpd, rd, retv, rlstt, rlvtt, rtt |
20 |
USE yoethf_m, ONLY: r2es, r5ies, r5les, rvtmp2 |
USE yoethf_m, ONLY: r2es, r5ies, r5les, rvtmp2 |
21 |
|
|
|
integer, intent(IN):: nisurf ! surface a traiter |
|
22 |
real, intent(IN):: dtime |
real, intent(IN):: dtime |
23 |
real, intent(IN):: tsurf(:) ! (knon) temperature de surface |
real, intent(IN):: tsurf(:) ! (knon) température de surface |
24 |
real, intent(IN):: p1lay(:) ! (knon) pression 1er niveau (milieu de couche) |
|
25 |
|
real, intent(IN):: p1lay(:) ! (knon) |
26 |
|
! pression première couche (milieu de couche) |
27 |
|
|
28 |
real, intent(IN):: cal(:) ! (knon) capacité calorifique du sol |
real, intent(IN):: cal(:) ! (knon) capacité calorifique du sol |
29 |
real, intent(IN):: beta(:) ! (knon) evap reelle |
real, intent(IN):: beta(:) ! (knon) évaporation réelle |
30 |
real, intent(IN):: coef1lay(:) ! (knon) coefficient d'échange |
real, intent(IN):: coef1lay(:) ! (knon) coefficient d'échange |
31 |
real, intent(IN):: ps(:) ! (knon) pression au sol |
real, intent(IN):: ps(:) ! (knon) pression au sol |
32 |
real, intent(OUT):: qsurf(:) ! (knon) humidite de l'air au dessus du sol |
real, intent(OUT):: qsurf(:) ! (knon) humidité de l'air au-dessus du sol |
33 |
real, intent(IN):: radsol(:) ! (knon) rayonnement net au sol (LW + SW) |
|
34 |
|
real, intent(IN):: radsol(:) ! (knon) |
35 |
|
! rayonnement net au sol (longwave + shortwave) |
36 |
|
|
37 |
real, intent(IN):: dif_grnd(:) ! (knon) |
real, intent(IN):: dif_grnd(:) ! (knon) |
38 |
! coefficient diffusion vers le sol profond |
! coefficient de diffusion vers le sol profond |
39 |
|
|
40 |
real, intent(IN):: t1lay(:), q1lay(:), u1lay(:), v1lay(:) ! (knon) |
real, intent(IN):: t1lay(:), q1lay(:), u1lay(:), v1lay(:) ! (knon) |
41 |
|
|
42 |
real, intent(IN):: petAcoef(:), peqAcoef(:) ! (knon) |
real, intent(IN):: petAcoef(:), peqAcoef(:) ! (knon) |
43 |
! coefficients A de la résolution de la couche limite pour t et q |
! coefficients A de la résolution de la couche limite pour T et q |
44 |
|
|
45 |
real, intent(IN):: petBcoef(:), peqBcoef(:) ! (knon) |
real, intent(IN):: petBcoef(:), peqBcoef(:) ! (knon) |
46 |
! petBcoef coeff. B de la resolution de la CL pour t |
! coefficients B de la résolution de la couche limite pour t et q |
|
! peqBcoef coeff. B de la resolution de la CL pour q |
|
47 |
|
|
48 |
real, intent(OUT):: tsurf_new(:) ! (knon) température au sol |
real, intent(OUT):: tsurf_new(:) ! (knon) température au sol |
49 |
real, intent(OUT):: evap(:), fluxlat(:), fluxsens(:) ! (knon) |
real, intent(OUT):: evap(:) ! (knon) |
50 |
! fluxlat flux de chaleur latente |
|
51 |
! fluxsens flux de chaleur sensible |
real, intent(OUT):: fluxlat(:), flux_t(:) ! (knon) |
52 |
|
! flux de chaleurs latente et sensible |
53 |
|
|
54 |
real, intent(OUT):: dflux_s(:), dflux_l(:) ! (knon) |
real, intent(OUT):: dflux_s(:), dflux_l(:) ! (knon) |
55 |
! Dérivées des flux dF/dTs (W m-2 K-1) |
! dérivées des flux de chaleurs sensible et latente par rapport à |
56 |
! dflux_s derivee du flux de chaleur sensible / Ts |
! Ts (W m-2 K-1) |
|
! dflux_l derivee du flux de chaleur latente / Ts |
|
57 |
|
|
58 |
! Local: |
! Local: |
59 |
integer i |
integer i |
|
real, dimension(size(ps)) :: zx_mh, zx_nh, zx_oh |
|
|
real, dimension(size(ps)) :: zx_mq, zx_nq, zx_oq |
|
|
real, dimension(size(ps)) :: zx_pkh, zx_dq_s_dt, zx_qsat, zx_coef |
|
|
real, dimension(size(ps)) :: zx_sl, zx_k1 |
|
|
real, dimension(size(ps)) :: zx_q_0 , d_ts |
|
|
logical zdelta |
|
|
real zcvm5, zx_qs, zcor, zx_dq_s_dh |
|
|
real :: bilan_f, fq_fonte |
|
|
REAL :: subli, fsno |
|
|
REAL :: qsat_new, q1_new |
|
60 |
integer knon ! nombre de points a traiter |
integer knon ! nombre de points a traiter |
61 |
real, parameter:: t_grnd = 271.35, t_coup = 273.15 |
real, dimension(size(ps)):: mh, oh, mq, nq, oq, dq_s_dt, coef ! (knon) |
62 |
|
real qsat(size(ps)) ! (knon) mass fraction |
63 |
|
real sl(size(ps)) ! (knon) chaleur latente d'évaporation ou de sublimation |
64 |
|
logical delta |
65 |
|
real zcor |
66 |
|
real, parameter:: t_grnd = 271.35 |
67 |
|
|
68 |
!--------------------------------------------------------------------- |
!--------------------------------------------------------------------- |
69 |
|
|
71 |
size(coef1lay), size(ps), size(qsurf), size(radsol), size(dif_grnd), & |
size(coef1lay), size(ps), size(qsurf), size(radsol), size(dif_grnd), & |
72 |
size(t1lay), size(q1lay), size(u1lay), size(v1lay), size(petAcoef), & |
size(t1lay), size(q1lay), size(u1lay), size(v1lay), size(petAcoef), & |
73 |
size(peqAcoef), size(petBcoef), size(peqBcoef), size(tsurf_new), & |
size(peqAcoef), size(petBcoef), size(peqBcoef), size(tsurf_new), & |
74 |
size(evap), size(fluxlat), size(fluxsens), size(dflux_s), & |
size(evap), size(fluxlat), size(flux_t), size(dflux_s), & |
75 |
size(dflux_l)/), "calcul_fluxs knon") |
size(dflux_l)/), "calcul_fluxs knon") |
76 |
|
|
77 |
if (size(run_off) /= knon .AND. nisurf == is_ter) then |
! Traitement de l'humidité du sol |
|
print *, 'Bizarre, le nombre de points continentaux' |
|
|
print *, 'a change entre deux appels. J''arrete.' |
|
|
call abort_gcm('calcul_fluxs', 'Pb run_off', 1) |
|
|
endif |
|
|
|
|
|
! Traitement humidite du sol |
|
|
|
|
|
evap = 0. |
|
|
fluxsens=0. |
|
|
fluxlat=0. |
|
|
dflux_s = 0. |
|
|
dflux_l = 0. |
|
|
|
|
|
! zx_qs = qsat en kg/kg |
|
78 |
|
|
79 |
DO i = 1, knon |
DO i = 1, knon |
80 |
zx_pkh(i) = (ps(i)/ps(i))**RKAPPA |
delta = rtt >= tsurf(i) |
81 |
IF (thermcep) THEN |
qsat(i) = MIN(0.5, r2es * FOEEW(tsurf(i), delta) / ps(i)) |
82 |
zdelta= rtt >= tsurf(i) |
zcor = 1. / (1. - retv * qsat(i)) |
83 |
zcvm5 = merge(R5IES*RLSTT, R5LES*RLVTT, zdelta) |
qsat(i) = qsat(i) * zcor |
84 |
zcvm5 = zcvm5 / RCPD / (1.0+RVTMP2*q1lay(i)) |
dq_s_dt(i) = RCPD * FOEDE(tsurf(i), delta, merge(R5IES * RLSTT, & |
85 |
zx_qs= r2es * FOEEW(tsurf(i), zdelta)/ps(i) |
R5LES * RLVTT, delta) / RCPD / (1. + RVTMP2 * q1lay(i)), & |
86 |
zx_qs=MIN(0.5, zx_qs) |
qsat(i), zcor) / RLVTT |
|
zcor=1./(1.-retv*zx_qs) |
|
|
zx_qs=zx_qs*zcor |
|
|
zx_dq_s_dh = FOEDE(tsurf(i), zdelta, zcvm5, zx_qs, zcor) & |
|
|
/RLVTT / zx_pkh(i) |
|
|
ELSE |
|
|
IF (tsurf(i).LT.t_coup) THEN |
|
|
zx_qs = qsats(tsurf(i)) / ps(i) |
|
|
zx_dq_s_dh = dqsats(tsurf(i), zx_qs)/RLVTT & |
|
|
/ zx_pkh(i) |
|
|
ELSE |
|
|
zx_qs = qsatl(tsurf(i)) / ps(i) |
|
|
zx_dq_s_dh = dqsatl(tsurf(i), zx_qs)/RLVTT & |
|
|
/ zx_pkh(i) |
|
|
ENDIF |
|
|
ENDIF |
|
|
zx_dq_s_dt(i) = RCPD * zx_pkh(i) * zx_dq_s_dh |
|
|
zx_qsat(i) = zx_qs |
|
|
zx_coef(i) = coef1lay(i) & |
|
|
* (1.0+SQRT(u1lay(i)**2+v1lay(i)**2)) & |
|
|
* p1lay(i)/(RD*t1lay(i)) |
|
|
|
|
87 |
ENDDO |
ENDDO |
88 |
|
|
89 |
! === Calcul de la temperature de surface === |
coef = coef1lay * (1. + SQRT(u1lay**2 + v1lay**2)) * p1lay / (RD * t1lay) |
90 |
|
sl = merge(RLSTT, RLVTT, tsurf < RTT) |
91 |
|
|
92 |
! zx_sl = chaleur latente d'evaporation ou de sublimation |
! Q |
93 |
|
oq = 1. - (beta * coef * peqBcoef * dtime) |
94 |
do i = 1, knon |
mq = beta * coef * (peqAcoef - qsat + dq_s_dt * tsurf) / oq |
95 |
zx_sl(i) = RLVTT |
nq = beta * coef * (- 1. * dq_s_dt) / oq |
96 |
if (tsurf(i) .LT. RTT) zx_sl(i) = RLSTT |
|
97 |
zx_k1(i) = zx_coef(i) |
! H |
98 |
enddo |
oh = 1. - (coef * petBcoef * dtime) |
99 |
|
mh = coef * petAcoef / oh |
100 |
do i = 1, knon |
dflux_s = - (coef * RCPD)/ oh |
101 |
! Q |
|
102 |
zx_oq(i) = 1. - (beta(i) * zx_k1(i) * peqBcoef(i) * dtime) |
! Tsurface |
103 |
zx_mq(i) = beta(i) * zx_k1(i) * & |
tsurf_new = (tsurf + cal / RCPD * dtime * (radsol + mh + sl * mq) & |
104 |
(peqAcoef(i) - zx_qsat(i) & |
+ dif_grnd * t_grnd * dtime) / (1. - dtime * cal / RCPD * (dflux_s & |
105 |
+ zx_dq_s_dt(i) * tsurf(i)) & |
+ sl * nq) + dtime * dif_grnd) |
106 |
/ zx_oq(i) |
|
107 |
zx_nq(i) = beta(i) * zx_k1(i) * (-1. * zx_dq_s_dt(i)) & |
evap = - mq - nq * tsurf_new |
108 |
/ zx_oq(i) |
fluxlat = - evap * sl |
109 |
|
flux_t = mh + dflux_s * tsurf_new |
110 |
! H |
dflux_l = sl * nq |
111 |
zx_oh(i) = 1. - (zx_k1(i) * petBcoef(i) * dtime) |
|
112 |
zx_mh(i) = zx_k1(i) * petAcoef(i) / zx_oh(i) |
! Nouvelle valeur de l'humidité au dessus du sol : |
113 |
zx_nh(i) = - (zx_k1(i) * RCPD * zx_pkh(i))/ zx_oh(i) |
qsurf = (peqAcoef - peqBcoef * evap * dtime) * (1. - beta) + beta * (qsat & |
114 |
|
+ dq_s_dt * (tsurf_new - tsurf)) |
|
! Tsurface |
|
|
tsurf_new(i) = (tsurf(i) + cal(i)/(RCPD * zx_pkh(i)) * dtime * & |
|
|
(radsol(i) + zx_mh(i) + zx_sl(i) * zx_mq(i)) & |
|
|
+ dif_grnd(i) * t_grnd * dtime)/ & |
|
|
( 1. - dtime * cal(i)/(RCPD * zx_pkh(i)) * ( & |
|
|
zx_nh(i) + zx_sl(i) * zx_nq(i)) & |
|
|
+ dtime * dif_grnd(i)) |
|
|
|
|
|
|
|
|
! Y'a-t-il fonte de neige? |
|
|
|
|
|
! fonte_neige = (nisurf /= is_oce) .AND. & |
|
|
! & (snow(i) > epsfra .OR. nisurf == is_sic .OR. nisurf == is_lic) & |
|
|
! & .AND. (tsurf_new(i) >= RTT) |
|
|
! if (fonte_neige) tsurf_new(i) = RTT |
|
|
d_ts(i) = tsurf_new(i) - tsurf(i) |
|
|
! zx_h_ts(i) = tsurf_new(i) * RCPD * zx_pkh(i) |
|
|
! zx_q_0(i) = zx_qsat(i) + zx_dq_s_dt(i) * d_ts(i) |
|
|
!== flux_q est le flux de vapeur d'eau: kg/(m**2 s) positive vers bas |
|
|
!== flux_t est le flux de cpt (energie sensible): j/(m**2 s) |
|
|
evap(i) = - zx_mq(i) - zx_nq(i) * tsurf_new(i) |
|
|
fluxlat(i) = - evap(i) * zx_sl(i) |
|
|
fluxsens(i) = zx_mh(i) + zx_nh(i) * tsurf_new(i) |
|
|
! Derives des flux dF/dTs (W m-2 K-1): |
|
|
dflux_s(i) = zx_nh(i) |
|
|
dflux_l(i) = (zx_sl(i) * zx_nq(i)) |
|
|
! Nouvelle valeure de l'humidite au dessus du sol |
|
|
qsat_new=zx_qsat(i) + zx_dq_s_dt(i) * d_ts(i) |
|
|
q1_new = peqAcoef(i) - peqBcoef(i)*evap(i)*dtime |
|
|
qsurf(i)=q1_new*(1.-beta(i)) + beta(i)*qsat_new |
|
|
ENDDO |
|
115 |
|
|
116 |
END SUBROUTINE calcul_fluxs |
END SUBROUTINE calcul_fluxs |
117 |
|
|