--- trunk/libf/phylmd/Mobidic/regr_pr_coefoz.f90 2011/07/19 12:54:20 48 +++ trunk/Sources/phylmd/Mobidic/regr_pr_av.f 2015/04/29 15:47:56 134 @@ -1,36 +1,35 @@ -module regr_pr_coefoz - - ! Both procedures of this module read a single Mobidic ozone - ! coefficient from "coefoz_LMDZ.nc", at the current day, regrid this - ! coefficient in pressure to the LMDZ vertical grid and pack it to the LMDZ - ! horizontal "physics" grid. - ! The input data is a 2D latitude -- pressure field. - ! The target horizontal LMDZ grid is the "scalar" grid: "rlonv", "rlatu". - ! We assume that the input data is already on the LMDZ "rlatu" - ! latitude grid. +module regr_pr_av_m implicit none contains - subroutine regr_pr_av_coefoz(ncid, name, julien, v3) + subroutine regr_pr_av(ncid, name, julien, v3) + + ! "regr_pr_av" stands for "regrid pressure averaging". + + ! This procedure reads a 2D latitude-pressure field from a NetCDF + ! file, at a given day, regrids this field in pressure to the LMDZ + ! vertical grid and packs it to the LMDZ horizontal "physics" + ! grid. + + ! We assume that, in the input file, the field has 3 dimensions: + ! latitude, pressure, julian day. + + ! We assume that the input field is already on the LMDZ "rlatu" + ! latitudes, except that latitudes are in ascending order in the + ! input file. - ! "regr_pr_av_coefoz" stands for "regrid pressure averaging - ! coefficient ozone". ! The target vertical LMDZ grid is the grid of layer boundaries. - ! The input data does not depend on longitude, but the pressure - ! at LMDZ layers does. - ! Therefore, the values on the LMDZ grid do depend on longitude. ! Regridding in pressure is done by averaging a step function of pressure. use dimens_m, only: iim, jjm, llm use dimphy, only: klon - use netcdf95, only: nf95_inq_varid, handle_err - use netcdf, only: nf90_get_var use grid_change, only: dyn_phy + use netcdf95, only: nf95_inq_varid, nf95_get_var use nr_util, only: assert + use numer_rec_95, only: regr1_step_av use press_coefoz_m, only: press_in_edg - use jumble, only: regr1_step_av use pressure_var, only: p3d integer, intent(in):: ncid ! NetCDF ID of the file @@ -38,21 +37,21 @@ integer, intent(in):: julien ! jour julien, 1 <= julien <= 360 real, intent(out):: v3(:, :) ! (klon, llm) - ! (ozone coefficient from Mobidic on the "physics" grid) - ! ("v3(i, k)" is at longitude "xlon(i)", latitude - ! "xlat(i)", in layer "k".) + ! regridded field on the partial "physics" grid + ! "v3(i, k)" is at longitude "xlon(i)", latitude "xlat(i)", in + ! layer "k". ! Variables local to the procedure: - integer varid, ncerr ! for NetCDF + integer varid ! for NetCDF real v1(jjm + 1, size(press_in_edg) - 1) - ! (ozone coefficient from "coefoz_LMDZ.nc" at day "julien") - ! ("v1(j, k)" is at latitude "rlatu(j)" and for - ! pressure interval "[press_in_edg(k), press_in_edg(k+1)]".) + ! input field at day "julien" + ! "v1(j, k)" is at latitude "rlatu(j)" and for + ! pressure interval "[press_in_edg(k), press_in_edg(k+1)]". real v2(iim + 1, jjm + 1, llm) - ! (ozone coefficient on the "dynamics" grid) + ! regridded field on the "dynamics" grid ! ("v2(i, j, k)" is at longitude "rlonv(i)", latitude ! "rlatu(j)" and for pressure interval "[p3d(i, j, k+1), p3d(i, j, k)]".) @@ -60,13 +59,12 @@ !-------------------------------------------- - call assert(shape(v3) == (/klon, llm/), "regr_pr_av_coefoz") + call assert(shape(v3) == (/klon, llm/), "regr_pr_av") call nf95_inq_varid(ncid, name, varid) ! Get data at the right day from the input file: - ncerr = nf90_get_var(ncid, varid, v1, start=(/1, 1, julien/)) - call handle_err("regr_pr_av_coefoz nf90_get_var " // name, ncerr, ncid) + call nf95_get_var(ncid, varid, v1, start=(/1, 1, julien/)) ! Latitudes are in ascending order in the input file while ! "rlatu" is in descending order so we need to invert order: v1 = v1(jjm+1:1:-1, :) @@ -85,86 +83,6 @@ forall (k = 1:llm) v3(:, k) = pack(v2(:, :, k), dyn_phy) - end subroutine regr_pr_av_coefoz - - !*************************************************************** - - subroutine regr_pr_int_coefoz(ncid, name, julien, top_value, v3) - - ! "regr_pr_int_coefoz" stands for "regrid pressure interpolation - ! coefficient ozone". - ! The target vertical LMDZ grid is the grid of mid-layers. - ! The input data does not depend on longitude, but the pressure - ! at LMDZ mid-layers does. - ! Therefore, the values on the LMDZ grid do depend on longitude. - ! Regridding is by linear interpolation. - - use dimens_m, only: iim, jjm, llm - use dimphy, only: klon - use netcdf95, only: nf95_inq_varid, handle_err - use netcdf, only: nf90_get_var - use grid_change, only: dyn_phy - use nr_util, only: assert - use press_coefoz_m, only: plev - use jumble, only: regr1_lint - use pressure_var, only: pls - - integer, intent(in):: ncid ! NetCDF ID of the file - character(len=*), intent(in):: name ! of the NetCDF variable - integer, intent(in):: julien ! jour julien, 1 <= julien <= 360 - - real, intent(in):: top_value - ! (extra value of ozone coefficient at 0 pressure) - - real, intent(out):: v3(:, :) ! (klon, llm) - ! (ozone coefficient from Mobidic on the "physics" grid) - ! ("v3(i, k)" is at longitude "xlon(i)", latitude - ! "xlat(i)", middle of layer "k".) - - ! Variables local to the procedure: - - integer varid, ncerr ! for NetCDF - - real v1(jjm + 1, 0:size(plev)) - ! (ozone coefficient from "coefoz_LMDZ.nc" at day "julien") - ! ("v1(j, k >=1)" is at latitude "rlatu(j)" and pressure "plev(k)".) - - real v2(iim + 1, jjm + 1, llm) - ! (ozone coefficient on the "dynamics" grid) - ! "v2(i, j, k)" is at longitude "rlonv(i)", latitude - ! "rlatu(j)" and pressure "pls(i, j, k)".) - - integer i, j, k - - !-------------------------------------------- - - call assert(shape(v3) == (/klon, llm/), "regr_pr_int_coefoz") - - call nf95_inq_varid(ncid, name, varid) - - ! Get data at the right day from the input file: - ncerr = nf90_get_var(ncid, varid, v1(:, 1:), start=(/1, 1, julien/)) - call handle_err("regr_pr_int_coefoz nf90_get_var " // name, ncerr, ncid) - ! Latitudes are in ascending order in the input file while - ! "rlatu" is in descending order so we need to invert order: - v1(:, 1:) = v1(jjm+1:1:-1, 1:) - - ! Complete "v1" with the value at 0 pressure: - v1(:, 0) = top_value - - ! Regrid in pressure at each horizontal position: - do j = 1, jjm + 1 - do i = 1, iim - if (dyn_phy(i, j)) then - v2(i, j, llm:1:-1) & - = regr1_lint(v1(j, :), (/0., plev/), pls(i, j, llm:1:-1)) - ! (invert order of indices because "pls" is in descending order) - end if - end do - end do - - forall (k = 1:llm) v3(:, k) = pack(v2(:, :, k), dyn_phy) - - end subroutine regr_pr_int_coefoz + end subroutine regr_pr_av -end module regr_pr_coefoz +end module regr_pr_av_m