| 1 |
module etat0_mod |
| 2 |
|
| 3 |
use indicesol, only: nbsrf |
| 4 |
use dimphy, only: klon |
| 5 |
|
| 6 |
IMPLICIT NONE |
| 7 |
|
| 8 |
REAL pctsrf(klon, nbsrf) |
| 9 |
! ("pctsrf(i, :)" is the composition of the surface at horizontal |
| 10 |
! position "i") |
| 11 |
|
| 12 |
private nbsrf, klon |
| 13 |
|
| 14 |
contains |
| 15 |
|
| 16 |
SUBROUTINE etat0 |
| 17 |
|
| 18 |
! From "etat0_netcdf.F", version 1.3 2005/05/25 13:10:09 |
| 19 |
|
| 20 |
use caldyn0_m, only: caldyn0 |
| 21 |
use comconst, only: dtvr, daysec, cpp, kappa |
| 22 |
use comgeom, only: rlatu, rlonv, rlonu, rlatv, aire_2d, apoln, apols, & |
| 23 |
cu_2d, cv_2d |
| 24 |
use conf_gcm_m, only: day_step, iphysiq, dayref, anneeref |
| 25 |
use dimens_m, only: iim, jjm, llm, nqmx |
| 26 |
use dimphy, only: zmasq |
| 27 |
use dimsoil, only: nsoilmx |
| 28 |
use disvert_m, only: ap, bp, preff, pa |
| 29 |
use dynredem0_m, only: dynredem0 |
| 30 |
use dynredem1_m, only: dynredem1 |
| 31 |
use exner_hyb_m, only: exner_hyb |
| 32 |
use geopot_m, only: geopot |
| 33 |
use grid_atob, only: grille_m |
| 34 |
use grid_change, only: init_dyn_phy, dyn_phy |
| 35 |
use histclo_m, only: histclo |
| 36 |
use indicesol, only: is_oce, is_sic, is_ter, is_lic, epsfra |
| 37 |
use iniadvtrac_m, only: iniadvtrac |
| 38 |
use inifilr_m, only: inifilr |
| 39 |
use inigeom_m, only: inigeom |
| 40 |
use massdair_m, only: massdair |
| 41 |
use netcdf, only: nf90_nowrite |
| 42 |
use netcdf95, only: nf95_close, nf95_get_var, nf95_gw_var, & |
| 43 |
nf95_inq_varid, nf95_open |
| 44 |
use nr_util, only: pi |
| 45 |
use paramet_m, only: ip1jm, ip1jmp1 |
| 46 |
use phyredem_m, only: phyredem |
| 47 |
use pressure_var, only: pls, p3d |
| 48 |
use q_sat_m, only: q_sat |
| 49 |
use regr_lat_time_coefoz_m, only: regr_lat_time_coefoz |
| 50 |
use regr_pr_o3_m, only: regr_pr_o3 |
| 51 |
use serre, only: alphax |
| 52 |
use startdyn, only: start_init_dyn |
| 53 |
USE start_init_orog_m, only: start_init_orog, mask, phis |
| 54 |
use start_init_phys_m, only: start_init_phys |
| 55 |
use start_inter_3d_m, only: start_inter_3d |
| 56 |
use temps, only: itau_phy, annee_ref, day_ref |
| 57 |
|
| 58 |
! Variables local to the procedure: |
| 59 |
|
| 60 |
REAL latfi(klon), lonfi(klon) |
| 61 |
! (latitude and longitude of a point of the scalar grid identified |
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! by a simple index, in °) |
| 63 |
|
| 64 |
REAL, dimension(iim + 1, jjm + 1, llm):: ucov, t3d, tpot |
| 65 |
REAL vcov(iim + 1, jjm, llm) |
| 66 |
|
| 67 |
REAL q(iim + 1, jjm + 1, llm, nqmx) |
| 68 |
! (mass fractions of trace species |
| 69 |
! "q(i, j, l)" is at longitude "rlonv(i)", latitude "rlatu(j)" |
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! and pressure level "pls(i, j, l)".) |
| 71 |
|
| 72 |
real qsat(iim + 1, jjm + 1, llm) ! mass fraction of saturating water vapor |
| 73 |
REAL tsol(klon), qsol(klon), sn(klon) |
| 74 |
REAL tsolsrf(klon, nbsrf), qsolsrf(klon, nbsrf), snsrf(klon, nbsrf) |
| 75 |
REAL albe(klon, nbsrf), evap(klon, nbsrf) |
| 76 |
REAL alblw(klon, nbsrf) |
| 77 |
REAL tsoil(klon, nsoilmx, nbsrf) |
| 78 |
REAL radsol(klon), rain_fall(klon), snow_fall(klon) |
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REAL solsw(klon), sollw(klon), fder(klon) |
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!IM "slab" ocean |
| 81 |
REAL tslab(klon) |
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real seaice(klon) ! kg m-2 |
| 83 |
REAL frugs(klon, nbsrf), agesno(klon, nbsrf) |
| 84 |
REAL rugmer(klon) |
| 85 |
real, dimension(iim + 1, jjm + 1):: relief, zstd_2d, zsig_2d, zgam_2d |
| 86 |
real, dimension(iim + 1, jjm + 1):: zthe_2d, zpic_2d, zval_2d |
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real, dimension(iim + 1, jjm + 1):: tsol_2d, qsol_2d, psol |
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REAL zmea(klon), zstd(klon) |
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REAL zsig(klon), zgam(klon) |
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REAL zthe(klon) |
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REAL zpic(klon), zval(klon) |
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REAL t_ancien(klon, llm), q_ancien(klon, llm) ! |
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REAL run_off_lic_0(klon) |
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real clwcon(klon, llm), rnebcon(klon, llm), ratqs(klon, llm) |
| 95 |
|
| 96 |
! Déclarations pour lecture glace de mer : |
| 97 |
INTEGER iml_lic, jml_lic |
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INTEGER ncid, varid |
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REAL, pointer:: dlon_lic(:), dlat_lic(:) |
| 100 |
REAL, ALLOCATABLE:: fraclic(:, :) ! fraction land ice |
| 101 |
REAL flic_tmp(iim + 1, jjm + 1) ! fraction land ice temporary |
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|
| 103 |
INTEGER l, ji |
| 104 |
|
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REAL pk(iim + 1, jjm + 1, llm) ! fonction d'Exner aux milieux des couches |
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real pks(iim + 1, jjm + 1) |
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|
| 108 |
REAL masse(iim + 1, jjm + 1, llm) |
| 109 |
REAL phi(iim + 1, jjm + 1, llm) |
| 110 |
REAL pbaru(ip1jmp1, llm), pbarv(ip1jm, llm) |
| 111 |
REAL w(ip1jmp1, llm) |
| 112 |
REAL phystep |
| 113 |
|
| 114 |
!--------------------------------- |
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|
| 116 |
print *, "Call sequence information: etat0" |
| 117 |
|
| 118 |
dtvr = daysec / real(day_step) |
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print *, 'dtvr = ', dtvr |
| 120 |
|
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! Construct a grid: |
| 122 |
|
| 123 |
pa = 5e4 |
| 124 |
CALL iniconst |
| 125 |
CALL inigeom |
| 126 |
CALL inifilr |
| 127 |
|
| 128 |
latfi(1) = 90. |
| 129 |
latfi(2:klon-1) = pack(spread(rlatu(2:jjm), 1, iim), .true.) * 180. / pi |
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! (with conversion to degrees) |
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latfi(klon) = - 90. |
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|
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lonfi(1) = 0. |
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lonfi(2:klon-1) = pack(spread(rlonv(:iim), 2, jjm - 1), .true.) * 180. / pi |
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! (with conversion to degrees) |
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lonfi(klon) = 0. |
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|
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call start_init_orog(relief, zstd_2d, zsig_2d, zgam_2d, zthe_2d, zpic_2d, & |
| 139 |
zval_2d) ! also compute "mask" and "phis" |
| 140 |
call init_dyn_phy ! define the mask "dyn_phy" for distinct grid points |
| 141 |
zmasq = pack(mask, dyn_phy) |
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PRINT *, 'Masque construit' |
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|
| 144 |
call start_init_phys(tsol_2d, qsol_2d) |
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CALL start_init_dyn(tsol_2d, psol) |
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|
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! Compute pressure on intermediate levels: |
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forall(l = 1: llm + 1) p3d(:, :, l) = ap(l) + bp(l) * psol |
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CALL exner_hyb(psol, p3d, pks, pk) |
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IF (MINVAL(pk) == MAXVAL(pk)) then |
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print *, '"pk" should not be constant' |
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stop 1 |
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end IF |
| 154 |
|
| 155 |
pls = preff * (pk / cpp)**(1. / kappa) |
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PRINT *, "minval(pls) = ", minval(pls) |
| 157 |
print *, "maxval(pls) = ", maxval(pls) |
| 158 |
|
| 159 |
call start_inter_3d('U', rlonv, rlatv, pls, ucov) |
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forall (l = 1: llm) ucov(:iim, :, l) = ucov(:iim, :, l) * cu_2d(:iim, :) |
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ucov(iim+1, :, :) = ucov(1, :, :) |
| 162 |
|
| 163 |
call start_inter_3d('V', rlonu, rlatu(:jjm), pls(:, :jjm, :), vcov) |
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forall (l = 1: llm) vcov(:iim, :, l) = vcov(:iim, :, l) * cv_2d(:iim, :) |
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vcov(iim + 1, :, :) = vcov(1, :, :) |
| 166 |
|
| 167 |
call start_inter_3d('TEMP', rlonu, rlatv, pls, t3d) |
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PRINT *, 'minval(t3d) = ', minval(t3d) |
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print *, "maxval(t3d) = ", maxval(t3d) |
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|
| 171 |
tpot(:iim, :, :) = t3d(:iim, :, :) * cpp / pk(:iim, :, :) |
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tpot(iim + 1, :, :) = tpot(1, :, :) |
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DO l=1, llm |
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tpot(:, 1, l) = SUM(aire_2d(:, 1) * tpot(:, 1, l)) / apoln |
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tpot(:, jjm + 1, l) = SUM(aire_2d(:, jjm + 1) * tpot(:, jjm + 1, l)) & |
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/ apols |
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ENDDO |
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|
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! Calcul de l'humidité à saturation : |
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qsat = q_sat(t3d, pls) |
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PRINT *, "minval(qsat) = ", minval(qsat) |
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print *, "maxval(qsat) = ", maxval(qsat) |
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IF (MINVAL(qsat) == MAXVAL(qsat)) stop '"qsat" should not be constant' |
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|
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! Water vapor: |
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call start_inter_3d('R', rlonu, rlatv, pls, q(:, :, :, 1)) |
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q(:, :, :, 1) = 0.01 * q(:, :, :, 1) * qsat |
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WHERE (q(:, :, :, 1) < 0.) q(:, :, :, 1) = 1E-10 |
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DO l = 1, llm |
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q(:, 1, l, 1) = SUM(aire_2d(:, 1) * q(:, 1, l, 1)) / apoln |
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q(:, jjm + 1, l, 1) & |
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= SUM(aire_2d(:, jjm + 1) * q(:, jjm + 1, l, 1)) / apols |
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ENDDO |
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|
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q(:, :, :, 2:4) = 0. ! liquid water, radon and lead |
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|
| 197 |
if (nqmx >= 5) then |
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! Ozone: |
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call regr_lat_time_coefoz |
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call regr_pr_o3(q(:, :, :, 5)) |
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! Convert from mole fraction to mass fraction: |
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q(:, :, :, 5) = q(:, :, :, 5) * 48. / 29. |
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end if |
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|
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tsol = pack(tsol_2d, dyn_phy) |
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qsol = pack(qsol_2d, dyn_phy) |
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sn = 0. ! snow |
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radsol = 0. |
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tslab = 0. ! IM "slab" ocean |
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seaice = 0. |
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rugmer = 0.001 |
| 212 |
zmea = pack(relief, dyn_phy) |
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zstd = pack(zstd_2d, dyn_phy) |
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zsig = pack(zsig_2d, dyn_phy) |
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zgam = pack(zgam_2d, dyn_phy) |
| 216 |
zthe = pack(zthe_2d, dyn_phy) |
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zpic = pack(zpic_2d, dyn_phy) |
| 218 |
zval = pack(zval_2d, dyn_phy) |
| 219 |
|
| 220 |
! On initialise les sous-surfaces. |
| 221 |
! Lecture du fichier glace de terre pour fixer la fraction de terre |
| 222 |
! et de glace de terre : |
| 223 |
|
| 224 |
call nf95_open("landiceref.nc", nf90_nowrite, ncid) |
| 225 |
|
| 226 |
call nf95_inq_varid(ncid, 'longitude', varid) |
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call nf95_gw_var(ncid, varid, dlon_lic) |
| 228 |
iml_lic = size(dlon_lic) |
| 229 |
|
| 230 |
call nf95_inq_varid(ncid, 'latitude', varid) |
| 231 |
call nf95_gw_var(ncid, varid, dlat_lic) |
| 232 |
jml_lic = size(dlat_lic) |
| 233 |
|
| 234 |
call nf95_inq_varid(ncid, 'landice', varid) |
| 235 |
ALLOCATE(fraclic(iml_lic, jml_lic)) |
| 236 |
call nf95_get_var(ncid, varid, fraclic) |
| 237 |
|
| 238 |
call nf95_close(ncid) |
| 239 |
|
| 240 |
! Interpolation sur la grille T du modèle : |
| 241 |
PRINT *, 'Dimensions de "landiceref.nc"' |
| 242 |
print *, "iml_lic = ", iml_lic |
| 243 |
print *, "jml_lic = ", jml_lic |
| 244 |
|
| 245 |
! Si les coordonnées sont en degrés, on les transforme : |
| 246 |
IF (MAXVAL( dlon_lic ) > pi) THEN |
| 247 |
dlon_lic = dlon_lic * pi / 180. |
| 248 |
ENDIF |
| 249 |
IF (maxval( dlat_lic ) > pi) THEN |
| 250 |
dlat_lic = dlat_lic * pi/ 180. |
| 251 |
ENDIF |
| 252 |
|
| 253 |
flic_tmp(:iim, :) = grille_m(dlon_lic, dlat_lic, fraclic, rlonv(:iim), & |
| 254 |
rlatu) |
| 255 |
flic_tmp(iim + 1, :) = flic_tmp(1, :) |
| 256 |
|
| 257 |
deallocate(dlon_lic, dlat_lic) ! pointers |
| 258 |
|
| 259 |
! Passage sur la grille physique |
| 260 |
pctsrf = 0. |
| 261 |
pctsrf(:, is_lic) = pack(flic_tmp, dyn_phy) |
| 262 |
! Adéquation avec le maque terre/mer |
| 263 |
WHERE (pctsrf(:, is_lic) < EPSFRA ) pctsrf(:, is_lic) = 0. |
| 264 |
WHERE (zmasq < EPSFRA) pctsrf(:, is_lic) = 0. |
| 265 |
pctsrf(:, is_ter) = zmasq |
| 266 |
where (zmasq > EPSFRA) |
| 267 |
where (pctsrf(:, is_lic) >= zmasq) |
| 268 |
pctsrf(:, is_lic) = zmasq |
| 269 |
pctsrf(:, is_ter) = 0. |
| 270 |
elsewhere |
| 271 |
pctsrf(:, is_ter) = zmasq - pctsrf(:, is_lic) |
| 272 |
where (pctsrf(:, is_ter) < EPSFRA) |
| 273 |
pctsrf(:, is_ter) = 0. |
| 274 |
pctsrf(:, is_lic) = zmasq |
| 275 |
end where |
| 276 |
end where |
| 277 |
end where |
| 278 |
|
| 279 |
! Sous-surface océan et glace de mer (pour démarrer on met glace |
| 280 |
! de mer à 0) : |
| 281 |
pctsrf(:, is_oce) = 1. - zmasq |
| 282 |
WHERE (pctsrf(:, is_oce) < EPSFRA) pctsrf(:, is_oce) = 0. |
| 283 |
|
| 284 |
! Vérification que somme des sous-surfaces vaut 1: |
| 285 |
ji = count(abs(sum(pctsrf, dim = 2) - 1.) > EPSFRA) |
| 286 |
IF (ji /= 0) then |
| 287 |
PRINT *, 'Problème répartition sous maille pour ', ji, 'points' |
| 288 |
end IF |
| 289 |
|
| 290 |
! Calcul intermédiaire: |
| 291 |
CALL massdair(p3d, masse) |
| 292 |
|
| 293 |
print *, 'ALPHAX = ', alphax |
| 294 |
|
| 295 |
forall (l = 1:llm) |
| 296 |
masse(:, 1, l) = SUM(aire_2d(:iim, 1) * masse(:iim, 1, l)) / apoln |
| 297 |
masse(:, jjm + 1, l) = & |
| 298 |
SUM(aire_2d(:iim, jjm + 1) * masse(:iim, jjm + 1, l)) / apols |
| 299 |
END forall |
| 300 |
|
| 301 |
! Initialisation pour traceurs: |
| 302 |
call iniadvtrac |
| 303 |
itau_phy = 0 |
| 304 |
day_ref = dayref |
| 305 |
annee_ref = anneeref |
| 306 |
|
| 307 |
CALL geopot(tpot, pk , pks, phis, phi) |
| 308 |
CALL caldyn0(ucov, vcov, tpot, psol, masse, pk, phis, phi, w, pbaru, & |
| 309 |
pbarv) |
| 310 |
CALL dynredem0("start.nc", dayref, phis) |
| 311 |
CALL dynredem1("start.nc", vcov, ucov, tpot, q, masse, psol, itau=0) |
| 312 |
|
| 313 |
! Ecriture état initial physique: |
| 314 |
print *, "iphysiq = ", iphysiq |
| 315 |
phystep = dtvr * REAL(iphysiq) |
| 316 |
print *, 'phystep = ', phystep |
| 317 |
|
| 318 |
! Initialisations : |
| 319 |
tsolsrf(:, is_ter) = tsol |
| 320 |
tsolsrf(:, is_lic) = tsol |
| 321 |
tsolsrf(:, is_oce) = tsol |
| 322 |
tsolsrf(:, is_sic) = tsol |
| 323 |
snsrf(:, is_ter) = sn |
| 324 |
snsrf(:, is_lic) = sn |
| 325 |
snsrf(:, is_oce) = sn |
| 326 |
snsrf(:, is_sic) = sn |
| 327 |
albe(:, is_ter) = 0.08 |
| 328 |
albe(:, is_lic) = 0.6 |
| 329 |
albe(:, is_oce) = 0.5 |
| 330 |
albe(:, is_sic) = 0.6 |
| 331 |
alblw = albe |
| 332 |
evap = 0. |
| 333 |
qsolsrf(:, is_ter) = 150. |
| 334 |
qsolsrf(:, is_lic) = 150. |
| 335 |
qsolsrf(:, is_oce) = 150. |
| 336 |
qsolsrf(:, is_sic) = 150. |
| 337 |
tsoil = spread(spread(tsol, 2, nsoilmx), 3, nbsrf) |
| 338 |
rain_fall = 0. |
| 339 |
snow_fall = 0. |
| 340 |
solsw = 165. |
| 341 |
sollw = -53. |
| 342 |
t_ancien = 273.15 |
| 343 |
q_ancien = 0. |
| 344 |
agesno = 0. |
| 345 |
!IM "slab" ocean |
| 346 |
tslab = tsolsrf(:, is_oce) |
| 347 |
seaice = 0. |
| 348 |
|
| 349 |
frugs(:, is_oce) = rugmer |
| 350 |
frugs(:, is_ter) = MAX(1.e-05, zstd * zsig / 2) |
| 351 |
frugs(:, is_lic) = MAX(1.e-05, zstd * zsig / 2) |
| 352 |
frugs(:, is_sic) = 0.001 |
| 353 |
fder = 0. |
| 354 |
clwcon = 0. |
| 355 |
rnebcon = 0. |
| 356 |
ratqs = 0. |
| 357 |
run_off_lic_0 = 0. |
| 358 |
|
| 359 |
call phyredem("startphy.nc", latfi, lonfi, pctsrf, & |
| 360 |
tsolsrf, tsoil, tslab, seaice, qsolsrf, qsol, snsrf, albe, alblw, & |
| 361 |
evap, rain_fall, snow_fall, solsw, sollw, fder, radsol, frugs, & |
| 362 |
agesno, zmea, zstd, zsig, zgam, zthe, zpic, zval, & |
| 363 |
t_ancien, q_ancien, rnebcon, ratqs, clwcon, run_off_lic_0) |
| 364 |
CALL histclo |
| 365 |
|
| 366 |
END SUBROUTINE etat0 |
| 367 |
|
| 368 |
end module etat0_mod |
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