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| 5 |
contains |
contains |
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|
| 7 |
subroutine regr_pr_o3(o3_mob_regr) |
subroutine regr_pr_o3(p3d, o3_mob_regr) |
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|
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! "regr_pr_o3" stands for "regrid pressure ozone". |
! "regr_pr_o3" stands for "regrid pressure ozone". |
| 10 |
! This procedure reads Mobidic ozone mole fraction from |
! This procedure reads Mobidic ozone mole fraction from |
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! "coefoz_LMDZ.nc" at the initial day and regrids it in pressure. |
! "coefoz_LMDZ.nc" at the initial day and regrids it in pressure. |
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! Ozone mole fraction from "coefoz_LMDZ.nc" is a 2D latitude -- |
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! pressure variable. |
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! The target horizontal LMDZ grid is the "scalar" grid: "rlonv", "rlatu". |
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! The target vertical LMDZ grid is the grid of layer boundaries. |
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! We assume that the input variable is already on the LMDZ "rlatu" |
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! latitude grid. |
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! The input variable does not depend on longitude, but the |
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! pressure at LMDZ layers does. |
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! Therefore, the values on the LMDZ grid do depend on longitude. |
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! Regridding is by averaging, assuming a step function. |
! Regridding is by averaging, assuming a step function. |
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! We assume that, in the input file, the pressure levels are in hPa |
! We assume that, in the input file, the pressure levels are in |
| 23 |
! and strictly increasing. |
! hPa and strictly increasing. |
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|
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use conf_gcm_m, only: dayref |
use dimensions, only: iim, jjm, llm |
| 26 |
use dimens_m, only: iim, jjm, llm |
use dynetat0_chosen_m, only: day_ref |
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use netcdf95, only: nf95_open, nf95_close, nf95_inq_varid, handle_err, & |
use grid_change, only: dyn_phy |
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nf95_get_coord |
use netcdf, only: nf90_nowrite |
| 29 |
use netcdf, only: nf90_nowrite, nf90_get_var |
use netcdf95, only: nf95_open, nf95_close, nf95_inq_varid, nf95_get_var, & |
| 30 |
use regr_pr, only: regr_pr_av |
nf95_gw_var |
| 31 |
use nrutil, only: assert |
use nr_util, only: assert |
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use numer_rec_95, only: regr1_step_av |
| 33 |
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|
| 34 |
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REAL, intent(in):: p3d(:, :, :) ! (iim + 1, jjm + 1, llm+1) |
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! pressure at layer interfaces, in Pa |
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! ("p3d(i, j, l)" is at longitude "rlonv(i)", latitude "rlatu(j)", |
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! for interface "l") |
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|
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real, intent(out):: o3_mob_regr(:, :, :) ! (iim + 1, jjm + 1, llm) |
real, intent(out):: o3_mob_regr(:, :, :) ! (iim + 1, jjm + 1, llm) |
| 40 |
! (ozone mole fraction from Mobidic adapted to the LMDZ grid) |
! (ozone mole fraction from Mobidic adapted to the LMDZ grid) |
| 43 |
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|
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! Variables local to the procedure: |
! Variables local to the procedure: |
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|
| 46 |
real, pointer:: plev(:) |
real, allocatable:: plev(:) |
| 47 |
! (pressure levels of Mobidic data, in Pa, in strictly increasing order) |
! (pressure levels of Mobidic data, in Pa, in strictly increasing order) |
| 48 |
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|
| 49 |
real, allocatable:: press_in_edg(:) |
real, allocatable:: press_in_edg(:) |
| 50 |
! (edges of pressure intervals for Mobidic data, in Pa, in strictly |
! (edges of pressure intervals for Mobidic data, in Pa, in strictly |
| 51 |
! increasing order) |
! increasing order) |
| 52 |
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|
| 53 |
integer ncid, varid, ncerr ! for NetCDF |
integer ncid, varid ! for NetCDF |
| 54 |
integer n_plev ! number of pressure levels in Mobidic data |
integer n_plev ! number of pressure levels in Mobidic data |
| 55 |
integer j |
integer i, j |
| 56 |
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|
| 57 |
real, allocatable:: r_mob(:, :)! (jjm + 1, n_plev) |
real, allocatable:: r_mob(:, :)! (jjm + 1, n_plev) |
| 58 |
! (ozone mole fraction from Mobidic at day "dayref") |
! (ozone mole fraction from Mobidic at day "day_ref") |
| 59 |
! (r_mob(j, k) is at latitude "rlatu(j)" and pressure level "plev(k)".) |
! (r_mob(j, k) is at latitude "rlatu(j)" and pressure level "plev(k)".) |
| 60 |
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|
| 61 |
!------------------------------------------------------------ |
!------------------------------------------------------------ |
| 62 |
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|
| 63 |
print *, "Call sequence information: regr_pr_o3" |
print *, "Call sequence information: regr_pr_o3" |
| 64 |
call assert(shape(o3_mob_regr) == (/iim + 1, jjm + 1, llm/), "regr_pr_o3") |
|
| 65 |
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call assert(shape(o3_mob_regr) == (/iim + 1, jjm + 1, llm/), & |
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"regr_pr_o3 o3_mob_regr") |
| 67 |
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call assert(shape(p3d) == (/iim + 1, jjm + 1, llm + 1/), & |
| 68 |
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"regr_pr_o3 p3d") |
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|
| 70 |
call nf95_open("coefoz_LMDZ.nc", nf90_nowrite, ncid) |
call nf95_open("coefoz_LMDZ.nc", nf90_nowrite, ncid) |
| 71 |
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|
| 72 |
call nf95_get_coord(ncid, "plev", plev) |
call nf95_inq_varid(ncid, "plev", varid) |
| 73 |
|
call nf95_gw_var(ncid, varid, plev) |
| 74 |
! Convert from hPa to Pa because "regr_pr_av" requires so: |
! Convert from hPa to Pa because "regr_pr_av" requires so: |
| 75 |
plev = plev * 100. |
plev = plev * 100. |
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n_plev = size(plev) |
n_plev = size(plev) |
| 84 |
! (infinity, but any value guaranteed to be greater than the |
! (infinity, but any value guaranteed to be greater than the |
| 85 |
! surface pressure would do) |
! surface pressure would do) |
| 86 |
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deallocate(plev) ! pointer |
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|
| 87 |
call nf95_inq_varid(ncid, "r_Mob", varid) |
call nf95_inq_varid(ncid, "r_Mob", varid) |
| 88 |
allocate(r_mob(jjm + 1, n_plev)) |
allocate(r_mob(jjm + 1, n_plev)) |
| 89 |
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|
| 90 |
! Get data at the right day from the input file: |
! Get data at the right day from the input file: |
| 91 |
ncerr = nf90_get_var(ncid, varid, r_mob, start=(/1, 1, dayref/)) |
call nf95_get_var(ncid, varid, r_mob, start=(/1, 1, day_ref/)) |
|
call handle_err("nf90_get_var r_Mob", ncerr) |
|
| 92 |
! Latitudes are in increasing order in the input file while |
! Latitudes are in increasing order in the input file while |
| 93 |
! "rlatu" is in decreasing order so we need to invert order: |
! "rlatu" is in decreasing order so we need to invert order: |
| 94 |
r_mob = r_mob(jjm+1:1:-1, :) |
r_mob = r_mob(jjm+1:1:-1, :) |
| 95 |
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|
| 96 |
call nf95_close(ncid) |
call nf95_close(ncid) |
| 97 |
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|
| 98 |
o3_mob_regr = regr_pr_av(r_mob, press_in_edg) |
! Regrid in pressure by averaging a step function of pressure: |
| 99 |
|
do j = 1, jjm + 1 |
| 100 |
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do i = 1, iim |
| 101 |
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if (dyn_phy(i, j)) then |
| 102 |
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o3_mob_regr(i, j, llm:1:-1) & |
| 103 |
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= regr1_step_av(r_mob(j, :), press_in_edg, & |
| 104 |
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p3d(i, j, llm+1:1:-1)) |
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! (invert order of indices because "p3d" is decreasing) |
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end if |
| 107 |
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end do |
| 108 |
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end do |
| 109 |
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|
| 110 |
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! Duplicate pole values on all longitudes: |
| 111 |
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o3_mob_regr(2:, 1, :) = spread(o3_mob_regr(1, 1, :), dim=1, ncopies=iim) |
| 112 |
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o3_mob_regr(2:, jjm + 1, :) & |
| 113 |
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= spread(o3_mob_regr(1, jjm + 1, :), dim=1, ncopies=iim) |
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|
| 115 |
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! Duplicate first longitude to last longitude: |
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o3_mob_regr(iim + 1, 2:jjm, :) = o3_mob_regr(1, 2:jjm, :) |
| 117 |
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|
| 118 |
end subroutine regr_pr_o3 |
end subroutine regr_pr_o3 |
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