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module conf_guide_m |
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USE dimensions, ONLY: iim, jjm |
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IMPLICIT NONE |
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LOGICAL:: ini_anal = .false. ! Initial = analyse |
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LOGICAL:: guide_u = .false. ! guidage de u |
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LOGICAL:: guide_v = .false. ! gvidage de v |
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LOGICAL:: guide_t = .false. ! guidage de T |
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LOGICAL:: guide_q = .false. ! guidage de q |
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logical, save:: ok_guide ! guidage |
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! alpha détermine la part des injections de données à chaque étape |
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! alpha=0 signifie pas d'injection |
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! alpha=1 signifie injection totale |
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REAL, save:: alpha_q(iim + 1, jjm + 1) |
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REAL, save:: alpha_t(iim + 1, jjm + 1) |
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REAL, save:: alpha_u(iim + 1, jjm + 1), alpha_v(iim + 1, jjm) |
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private iim, jjm |
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contains |
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SUBROUTINE conf_guide |
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! From LMDZ4/libf/dyn3d/conf_guide.F, version 1.1.1.1 2004/05/19 12:53:07 |
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! Parametres de controle du run: |
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use comconst, only: daysec, dtvr |
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use conf_gcm_m, only: day_step, iperiod |
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use dynetat0_m, only: grossismx, grossismy, rlatu, rlatv |
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use init_tau2alpha_m, only: init_tau2alpha |
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use nr_util, only: assert, pi |
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use tau2alpha_m, only: tau2alpha |
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use unit_nml_m, only: unit_nml |
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use writefield_m, only: writefield |
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! Local: |
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! Constantes de rappel, en jours : |
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REAL tau_min_u, tau_max_u, tau_min_v, tau_max_v, tau_min_t, tau_max_t |
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real tau_min_q, tau_max_q |
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REAL lat_min_guide_deg, lat_max_guide_deg ! in degrees |
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! Dans le cas où on n'a les analyses que sur une bande de latitudes : |
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REAL lat_min_guide ! minimum latitude for nudging, in rad |
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real lat_max_guide ! maximum latitude for nudging, in rad |
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REAL factt ! pas de temps entre deux appels au guidage, en jours |
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REAL dxdys(iim + 1, jjm + 1), dxdyu(iim + 1, jjm + 1), dxdyv(iim + 1, jjm) |
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integer i, j |
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namelist /conf_guide_nml/ ini_anal, guide_u, guide_v, guide_t, guide_q, & |
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tau_min_u, tau_max_u, tau_min_v, tau_max_v, tau_min_t, tau_max_t, & |
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tau_min_q, tau_max_q, lat_min_guide_deg, lat_max_guide_deg |
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!----------------------------------------------------------------------- |
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print *, "Call sequence information: conf_guide" |
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! Default values: |
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tau_min_u = 0.03 |
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tau_max_u = 10. |
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tau_min_v = 0.03 |
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tau_max_v = 10. |
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tau_min_t = 0.03 |
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tau_max_t = 10. |
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tau_min_q = 0.03 |
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tau_max_q = 10. |
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lat_min_guide_deg = -90. |
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lat_max_guide_deg = 90. |
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print *, "Enter namelist 'conf_guide_nml'." |
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read(unit=*, nml=conf_guide_nml) |
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write(unit_nml, nml=conf_guide_nml) |
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ok_guide = any((/guide_u, guide_v, guide_t, guide_q/)) |
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if (ok_guide) then |
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call assert(mod(day_step, 4 * iperiod) == 0, & |
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"conf_guide ok_guide day_step iperiod") |
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lat_min_guide = lat_min_guide_deg / 180. * pi |
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lat_max_guide = lat_max_guide_deg / 180. * pi |
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factt = dtvr * iperiod / daysec |
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print *, "factt = ", factt |
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IF (abs(grossismx - 1.) < 0.1 .OR. abs(grossismy - 1.) < 0.1) THEN |
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! grille regulière |
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if (guide_u) alpha_u = 1. - exp(- factt / tau_max_u) |
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if (guide_v) alpha_v = 1. - exp(- factt / tau_max_v) |
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if (guide_t) alpha_t = 1. - exp(- factt / tau_max_t) |
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if (guide_q) alpha_q = 1. - exp(- factt / tau_max_q) |
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else |
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call init_tau2alpha(dxdys) |
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if (guide_u) then |
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DO j = 1, jjm + 1 |
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DO i = 1, iim |
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dxdyu(i, j) = 0.5 * (dxdys(i, j) + dxdys(i + 1, j)) |
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END DO |
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dxdyu(iim + 1, j) = dxdyu(1, j) |
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END DO |
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CALL tau2alpha(lat_min_guide, lat_max_guide, factt, dxdyu, rlatu, & |
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tau_min_u, tau_max_u, alpha_u) |
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CALL writefield("alpha_u", alpha_u) |
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end if |
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if (guide_v) then |
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DO j = 1, jjm |
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DO i = 1, iim + 1 |
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dxdyv(i, j) = 0.5 * (dxdys(i, j) + dxdys(i, j + 1)) |
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END DO |
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END DO |
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CALL tau2alpha(lat_min_guide, lat_max_guide, factt, dxdyv, rlatv, & |
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tau_min_v, tau_max_v, alpha_v) |
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CALL writefield("alpha_v", alpha_v) |
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end if |
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if (guide_t) then |
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CALL tau2alpha(lat_min_guide, lat_max_guide, factt, dxdys, rlatu, & |
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tau_min_t, tau_max_t, alpha_t) |
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CALL writefield("alpha_t", alpha_t) |
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end if |
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if (guide_q) then |
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CALL tau2alpha(lat_min_guide, lat_max_guide, factt, dxdys, rlatu, & |
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tau_min_q, tau_max_q, alpha_q) |
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CALL writefield("alpha_q", alpha_q) |
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end if |
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end IF |
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end if |
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end SUBROUTINE conf_guide |
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end module conf_guide_m |
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