--- trunk/libf/phylmd/Mobidic/regr_pr_coefoz.f90 2008/08/05 13:31:32 17 +++ trunk/Sources/phylmd/Mobidic/regr_pr_av.f 2015/04/29 15:47:56 134 @@ -1,136 +1,88 @@ -module regr_pr_coefoz +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_coefoz" stands for "regrid pressure averaging - ! coefficient ozone". - ! This procedure reads a single Mobidic ozone coefficient from - ! "coefoz_LMDZ.nc", at the current day, regrids this parameter in - ! pressure to the LMDZ vertical grid and packs it to the LMDZ - ! horizontal "physics" grid. - ! Regridding in pressure is done by averaging a step function. + ! "regr_pr_av" stands for "regrid pressure averaging". - 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 regr_pr, only: regr_pr_av - use numer_rec, only: assert - use press_coefoz_m, only: press_in_edg - - 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(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 - integer k - - 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)]".) - - real v2(iim + 1, jjm + 1, llm) - ! (ozone parameter from Mobidic on the "dynamics" grid) - ! "v2(i, j, k)" is at longitude "rlonv(i)", latitude - ! "rlatu(j)", middle of layer "k".) - - !-------------------------------------------- + ! 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. - call assert(shape(v3) == (/klon, llm/), "regr_pr_av_coefoz") + ! We assume that, in the input file, the field has 3 dimensions: + ! latitude, pressure, julian day. - 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) - ! Latitudes are in increasing order in the input file while - ! "rlatu" is in decreasing order so we need to invert order: - v1 = v1(jjm+1:1:-1, :) - - ! Regrid in pressure at each horizontal position: - v2 = regr_pr_av(v1, press_in_edg) - - forall (k = 1:llm) v3(:, k) = pack(v2(:, :, k), dyn_phy) - - end subroutine regr_pr_av_coefoz + ! We assume that the input field is already on the LMDZ "rlatu" + ! latitudes, except that latitudes are in ascending order in the + ! input file. - !*************************************************************** - - subroutine regr_pr_int_coefoz(ncid, name, julien, top_value, v3) - - ! This procedure reads a single Mobidic ozone coefficient from - !"coefoz_LMDZ.nc", at the current day, regrids this parameter in - ! pressure to the LMDZ vertical grid and packs it to the LMDZ - ! horizontal "physics" grid. - ! Regridding is by linear interpolation. + ! The target vertical LMDZ grid is the grid of layer boundaries. + ! 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 regr_pr, only: regr_pr_int - use numer_rec, only: assert - use press_coefoz_m, only: plev + 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 pressure_var, only: p3d 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 parameter from Mobidic on the "physics" grid) - ! ("v3(i, k)" is at longitude "xlon(i)", latitude - ! "xlat(i)", middle of 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 - integer k - 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)".) + integer varid ! for NetCDF + + real v1(jjm + 1, size(press_in_edg) - 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 parameter from Mobidic on the "dynamics" grid) - ! "v2(i, j, k)" is at longitude "rlonv(i)", latitude - ! "rlatu(j)", middle of layer "k".) + ! 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)]".) + + integer i, j, k !-------------------------------------------- - call assert(shape(v3) == (/klon, llm/), "regr_pr_int_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(:, 1:), start=(/1, 1, julien/)) - call handle_err("regr_pr_int_coefoz nf90_get_var " // name, ncerr, ncid) - ! Latitudes are in increasing order in the input file while - ! "rlatu" is in decreasing 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 + 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, :) ! Regrid in pressure at each horizontal position: - v2 = regr_pr_int(v1, (/0., plev/)) + do j = 1, jjm + 1 + do i = 1, iim + if (dyn_phy(i, j)) then + v2(i, j, llm:1:-1) & + = regr1_step_av(v1(j, :), press_in_edg, & + p3d(i, j, llm+1:1:-1)) + ! (invert order of indices because "p3d" 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