/[lmdze]/trunk/phylmd/Interface_surf/calcul_fluxs.f
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Annotation of /trunk/phylmd/Interface_surf/calcul_fluxs.f

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Revision 266 - (hide annotations)
Thu Apr 19 17:54:55 2018 UTC (6 years ago) by guez
File size: 4224 byte(s) 
Define macros of the preprocessor CPP_IIM, CPP_JJM, CPP_LLM so we can
control the resolution from the compilation command, and automate
compilation for several resolutions.

In module yoethf_m, transform variables into named constants. So we do
not need procedure yoethf any longer.

Bug fix in program test_inter_barxy, missing calls to fyhyp and fxhyp,
and definition of rlatu.

Remove variable iecri of module conf_gcm_m. The files dyn_hist*.nc are
written every time step. We are simplifying the output system, pending
replacement by a whole new system.

Modify possible value of vert_sampling from "param" to
"strato_custom", following LMDZ. Default values of corresponding
namelist variables are now the values used for LMDZ CMIP6.
1 guez 54 module calcul_fluxs_m
2    
3     implicit none
4    
5     contains
6    
7 guez 171 SUBROUTINE calcul_fluxs(dtime, tsurf, p1lay, cal, beta, coef1lay, ps, &
8     qsurf, radsol, dif_grnd, t1lay, q1lay, u1lay, v1lay, petAcoef, &
9 guez 206 peqAcoef, petBcoef, peqBcoef, tsurf_new, evap, fluxlat, flux_t, &
10 guez 104 dflux_s, dflux_l)
11 guez 54
12 guez 207 ! Cette routine calcule les flux en h et q à l'interface et une
13 guez 99 ! température de surface.
14 guez 54
15 guez 214 ! L. Fairhead, April 2000
16 guez 54
17 guez 221 USE fcttre, ONLY: foede, foeew
18 guez 104 use nr_util, only: assert_eq
19 guez 178 USE suphec_m, ONLY: rcpd, rd, retv, rlstt, rlvtt, rtt
20 guez 104 USE yoethf_m, ONLY: r2es, r5ies, r5les, rvtmp2
21    
22     real, intent(IN):: dtime
23 guez 206 real, intent(IN):: tsurf(:) ! (knon) température de surface
24    
25     real, intent(IN):: p1lay(:) ! (knon)
26     ! pression première couche (milieu de couche)
27    
28 guez 104 real, intent(IN):: cal(:) ! (knon) capacité calorifique du sol
29 guez 206 real, intent(IN):: beta(:) ! (knon) évaporation réelle
30 guez 104 real, intent(IN):: coef1lay(:) ! (knon) coefficient d'échange
31     real, intent(IN):: ps(:) ! (knon) pression au sol
32 guez 206 real, intent(OUT):: qsurf(:) ! (knon) humidité de l'air au-dessus du sol
33 guez 104
34 guez 206 real, intent(IN):: radsol(:) ! (knon)
35     ! rayonnement net au sol (longwave + shortwave)
36    
37 guez 104 real, intent(IN):: dif_grnd(:) ! (knon)
38 guez 206 ! coefficient de diffusion vers le sol profond
39 guez 104
40     real, intent(IN):: t1lay(:), q1lay(:), u1lay(:), v1lay(:) ! (knon)
41    
42     real, intent(IN):: petAcoef(:), peqAcoef(:) ! (knon)
43 guez 206 ! coefficients A de la résolution de la couche limite pour T et q
44 guez 104
45     real, intent(IN):: petBcoef(:), peqBcoef(:) ! (knon)
46 guez 206 ! coefficients B de la résolution de la couche limite pour t et q
47 guez 54
48 guez 104 real, intent(OUT):: tsurf_new(:) ! (knon) température au sol
49 guez 171 real, intent(OUT):: evap(:) ! (knon)
50    
51 guez 206 real, intent(OUT):: fluxlat(:), flux_t(:) ! (knon)
52 guez 207 ! flux de chaleurs latente et sensible
53 guez 171
54 guez 104 real, intent(OUT):: dflux_s(:), dflux_l(:) ! (knon)
55 guez 171 ! dérivées des flux de chaleurs sensible et latente par rapport à
56     ! Ts (W m-2 K-1)
57 guez 54
58 guez 104 ! Local:
59     integer i
60     integer knon ! nombre de points a traiter
61 guez 206 real, dimension(size(ps)):: mh, oh, mq, nq, oq, dq_s_dt, coef ! (knon)
62 guez 207 real qsat(size(ps)) ! (knon) mass fraction
63     real sl(size(ps)) ! (knon) chaleur latente d'évaporation ou de sublimation
64 guez 105 logical delta
65     real zcor
66 guez 207 real, parameter:: t_grnd = 271.35
67 guez 54
68 guez 104 !---------------------------------------------------------------------
69 guez 54
70 guez 104 knon = assert_eq((/size(tsurf), size(p1lay), size(cal), size(beta), &
71     size(coef1lay), size(ps), size(qsurf), size(radsol), size(dif_grnd), &
72     size(t1lay), size(q1lay), size(u1lay), size(v1lay), size(petAcoef), &
73     size(peqAcoef), size(petBcoef), size(peqBcoef), size(tsurf_new), &
74 guez 206 size(evap), size(fluxlat), size(flux_t), size(dflux_s), &
75 guez 104 size(dflux_l)/), "calcul_fluxs knon")
76 guez 54
77 guez 206 ! Traitement de l'humidité du sol
78 guez 54
79 guez 207 DO i = 1, knon
80     delta = rtt >= tsurf(i)
81     qsat(i) = MIN(0.5, r2es * FOEEW(tsurf(i), delta) / ps(i))
82     zcor = 1. / (1. - retv * qsat(i))
83     qsat(i) = qsat(i) * zcor
84     dq_s_dt(i) = RCPD * FOEDE(tsurf(i), delta, merge(R5IES * RLSTT, &
85     R5LES * RLVTT, delta) / RCPD / (1. + RVTMP2 * q1lay(i)), &
86     qsat(i), zcor) / RLVTT
87     ENDDO
88 guez 54
89 guez 105 coef = coef1lay * (1. + SQRT(u1lay**2 + v1lay**2)) * p1lay / (RD * t1lay)
90     sl = merge(RLSTT, RLVTT, tsurf < RTT)
91 guez 54
92 guez 105 ! Q
93 guez 266 oq = 1. - beta * coef * peqBcoef * dtime
94 guez 105 mq = beta * coef * (peqAcoef - qsat + dq_s_dt * tsurf) / oq
95     nq = beta * coef * (- 1. * dq_s_dt) / oq
96 guez 54
97 guez 105 ! H
98     oh = 1. - (coef * petBcoef * dtime)
99     mh = coef * petAcoef / oh
100     dflux_s = - (coef * RCPD)/ oh
101 guez 54
102 guez 105 ! Tsurface
103     tsurf_new = (tsurf + cal / RCPD * dtime * (radsol + mh + sl * mq) &
104     + dif_grnd * t_grnd * dtime) / (1. - dtime * cal / RCPD * (dflux_s &
105     + sl * nq) + dtime * dif_grnd)
106 guez 54
107 guez 105 evap = - mq - nq * tsurf_new
108     fluxlat = - evap * sl
109 guez 206 flux_t = mh + dflux_s * tsurf_new
110 guez 105 dflux_l = sl * nq
111 guez 54
112 guez 105 ! Nouvelle valeur de l'humidité au dessus du sol :
113     qsurf = (peqAcoef - peqBcoef * evap * dtime) * (1. - beta) + beta * (qsat &
114     + dq_s_dt * (tsurf_new - tsurf))
115 guez 54
116     END SUBROUTINE calcul_fluxs
117    
118     end module calcul_fluxs_m
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