| 1 | ! $Id$ |
|---|
| 2 | module press_coefoz_m |
|---|
| 3 | |
|---|
| 4 | IMPLICIT NONE |
|---|
| 5 | |
|---|
| 6 | REAL, ALLOCATABLE, save:: plev(:) |
|---|
| 7 | ! (pressure level of Mobidic input data, converted to Pa, in strictly |
|---|
| 8 | ! ascending order) |
|---|
| 9 | |
|---|
| 10 | REAL, ALLOCATABLE, save:: press_in_edg(:) |
|---|
| 11 | ! (edges of pressure intervals for Mobidic input data, in Pa, in strictly |
|---|
| 12 | ! ascending order) |
|---|
| 13 | |
|---|
| 14 | CONTAINS |
|---|
| 15 | |
|---|
| 16 | SUBROUTINE press_coefoz |
|---|
| 17 | |
|---|
| 18 | ! This procedure is called once per "gcm" run. |
|---|
| 19 | ! A single thread of the root process reads the pressure levels |
|---|
| 20 | ! from "coefoz_LMDZ.nc" and broadcasts them to the other processes. |
|---|
| 21 | |
|---|
| 22 | ! We assume that, in "coefoz_LMDZ.nc", the pressure levels are in hPa |
|---|
| 23 | ! and in strictly ascending order. |
|---|
| 24 | |
|---|
| 25 | USE netcdf95, ONLY: nf95_open, nf95_close, nf95_gw_var, nf95_inq_varid |
|---|
| 26 | USE netcdf, ONLY: nf90_nowrite |
|---|
| 27 | |
|---|
| 28 | USE lmdz_phys_mpi_data, ONLY: is_mpi_root |
|---|
| 29 | USE lmdz_phys_mpi_transfert, ONLY: bcast_mpi ! broadcast |
|---|
| 30 | |
|---|
| 31 | ! Variables local to the procedure: |
|---|
| 32 | INTEGER ncid, varid ! for NetCDF |
|---|
| 33 | INTEGER n_plev ! number of pressure levels in the input data |
|---|
| 34 | INTEGER k |
|---|
| 35 | |
|---|
| 36 | !--------------------------------------- |
|---|
| 37 | |
|---|
| 38 | !$omp single |
|---|
| 39 | PRINT *, "Call sequence information: press_coefoz" |
|---|
| 40 | |
|---|
| 41 | IF (is_mpi_root) THEN |
|---|
| 42 | CALL nf95_open("coefoz_LMDZ.nc", nf90_nowrite, ncid) |
|---|
| 43 | |
|---|
| 44 | CALL nf95_inq_varid(ncid, "plev", varid) |
|---|
| 45 | CALL nf95_gw_var(ncid, varid, plev) |
|---|
| 46 | ! Convert from hPa to Pa because "paprs" and "pplay" are in Pa: |
|---|
| 47 | plev = plev * 100. |
|---|
| 48 | n_plev = size(plev) |
|---|
| 49 | |
|---|
| 50 | CALL nf95_close(ncid) |
|---|
| 51 | end if |
|---|
| 52 | |
|---|
| 53 | CALL bcast_mpi(n_plev) |
|---|
| 54 | IF (.NOT. is_mpi_root) allocate(plev(n_plev)) |
|---|
| 55 | CALL bcast_mpi(plev) |
|---|
| 56 | |
|---|
| 57 | ! Compute edges of pressure intervals: |
|---|
| 58 | allocate(press_in_edg(n_plev + 1)) |
|---|
| 59 | IF (is_mpi_root) THEN |
|---|
| 60 | press_in_edg(1) = 0. |
|---|
| 61 | ! We choose edges halfway in logarithm: |
|---|
| 62 | DO k = 2,n_plev |
|---|
| 63 | press_in_edg(k) = SQRT(plev(k - 1) * plev(k)) |
|---|
| 64 | ENDDO |
|---|
| 65 | press_in_edg(n_plev + 1) = huge(0.) |
|---|
| 66 | ! (infinity, but any value guaranteed to be greater than the |
|---|
| 67 | ! surface pressure would do) |
|---|
| 68 | end if |
|---|
| 69 | CALL bcast_mpi(press_in_edg) |
|---|
| 70 | !$omp end single |
|---|
| 71 | |
|---|
| 72 | END SUBROUTINE press_coefoz |
|---|
| 73 | |
|---|
| 74 | END MODULE press_coefoz_m |
|---|
