| 1 | ! $Id$ |
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| 2 | module open_climoz_m |
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| 3 | |
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| 4 | implicit none |
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| 5 | |
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| 6 | contains |
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| 7 | |
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| 8 | subroutine open_climoz(ncid, press_in_edg) |
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| 9 | |
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| 10 | ! This procedure should be called once per "gcm" run, by a single |
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| 11 | ! thread of each MPI process. |
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| 12 | ! The root MPI process opens "climoz_LMDZ.nc", reads the pressure |
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| 13 | ! levels and broadcasts them to the other processes. |
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| 14 | |
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| 15 | ! We assume that, in "climoz_LMDZ.nc", the pressure levels are in hPa |
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| 16 | ! and in strictly ascending order. |
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| 17 | |
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| 18 | use netcdf95, only: nf95_open, nf95_close, nf95_gw_var, nf95_inq_varid |
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| 19 | use netcdf, only: nf90_nowrite |
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| 20 | use mod_phys_lmdz_para, only : is_master, bcast |
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| 21 | |
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| 22 | integer, intent(out):: ncid ! of "climoz_LMDZ.nc", OpenMP shared |
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| 23 | |
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| 24 | real, pointer:: press_in_edg(:) |
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| 25 | ! edges of pressure intervals for ozone climatology, in Pa, in strictly |
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| 26 | ! ascending order, OpenMP shared |
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| 27 | |
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| 28 | ! Variables local to the procedure: |
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| 29 | |
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| 30 | real, pointer:: plev(:) |
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| 31 | ! (pressure levels for ozone climatology, converted to Pa, in strictly |
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| 32 | ! ascending order) |
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| 33 | |
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| 34 | integer varid ! for NetCDF |
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| 35 | integer n_plev ! number of pressure levels in the input data |
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| 36 | integer k |
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| 37 | |
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| 38 | !--------------------------------------- |
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| 39 | |
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| 40 | print *, "Call sequence information: open_climoz" |
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| 41 | if (is_master) then |
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| 42 | call nf95_open("climoz_LMDZ.nc", nf90_nowrite, ncid) |
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| 43 | |
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| 44 | call nf95_inq_varid(ncid, "plev", varid) |
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| 45 | call nf95_gw_var(ncid, varid, plev) |
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| 46 | ! Convert from hPa to Pa because "paprs" and "pplay" are in Pa: |
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| 47 | plev = plev * 100. |
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| 48 | n_plev = size(plev) |
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| 49 | endif |
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| 50 | CALL bcast(n_plev) |
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| 51 | ALLOCATE(press_in_edg(n_plev + 1)) |
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| 52 | if (is_master) THEN |
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| 53 | press_in_edg(1) = 0. |
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| 54 | ! We choose edges halfway in logarithm: |
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| 55 | forall (k = 2:n_plev) press_in_edg(k) = sqrt(plev(k - 1) * plev(k)) |
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| 56 | press_in_edg(n_plev + 1) = huge(0.) |
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| 57 | ! (infinity, but any value guaranteed to be greater than the |
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| 58 | ! surface pressure would do) |
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| 59 | deallocate(plev) ! pointer |
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| 60 | endif |
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| 61 | call bcast(press_in_edg) |
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| 62 | |
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| 63 | end subroutine open_climoz |
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| 64 | |
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| 65 | end module open_climoz_m |
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