48 |
! -- packs the coefficients to the "physics" horizontal grid ; |
! -- packs the coefficients to the "physics" horizontal grid ; |
49 |
! -- combines the eight coefficients to define the five module variables. |
! -- combines the eight coefficients to define the five module variables. |
50 |
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51 |
! We assume that, in "coefoz_LMDZ.nc", the pressure levels are in hPa |
use netcdf95, only: nf95_open, nf95_close |
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! and strictly increasing. |
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use netcdf95, only: nf95_open, nf95_close, nf95_get_coord |
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52 |
use netcdf, only: nf90_nowrite |
use netcdf, only: nf90_nowrite |
53 |
use regr_pr_coefoz, only: regr_pr_av_coefoz, regr_pr_int_coefoz |
use regr_pr_coefoz, only: regr_pr_av_coefoz, regr_pr_int_coefoz |
54 |
use phyetat0_m, only: rlat |
use phyetat0_m, only: rlat |
56 |
integer, intent(in):: julien ! jour julien, 1 <= julien <= 360 |
integer, intent(in):: julien ! jour julien, 1 <= julien <= 360 |
57 |
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58 |
! Variables local to the procedure: |
! Variables local to the procedure: |
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integer ncid ! for NetCDF |
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59 |
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60 |
real, pointer:: plev(:) |
integer ncid ! for NetCDF |
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! (pressure level of input data, converted to Pa, in strictly |
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! increasing order) |
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integer n_plev ! number of pressure levels in the input data |
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real, allocatable:: press_in_edg(:) |
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! (edges of pressure intervals for input data, in Pa, in strictly |
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! increasing order) |
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61 |
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62 |
real coefoz(klon, llm) |
real coefoz(klon, llm) |
63 |
! (temporary storage for an ozone coefficient) |
! (temporary storage for an ozone coefficient) |
85 |
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86 |
call nf95_open("coefoz_LMDZ.nc", nf90_nowrite, ncid) |
call nf95_open("coefoz_LMDZ.nc", nf90_nowrite, ncid) |
87 |
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88 |
call nf95_get_coord(ncid, "plev", plev) |
call regr_pr_av_coefoz(ncid, "a2", julien, a2) |
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! Convert from hPa to Pa because "regr_pr_av" and "regr_pr_int" require so: |
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plev = plev * 100. |
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n_plev = size(plev) |
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! Compute edges of pressure intervals: |
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allocate(press_in_edg(n_plev + 1)) |
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press_in_edg(1) = 0. |
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! We choose edges halfway in logarithm: |
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forall (k = 2:n_plev) press_in_edg(k) = sqrt(plev(k - 1) * plev(k)) |
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press_in_edg(n_plev + 1) = huge(0.) |
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! (infinity, but any value guaranteed to be greater than the |
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! surface pressure would do) |
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call regr_pr_av_coefoz(ncid, "a2", julien, press_in_edg, a2) |
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89 |
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90 |
call regr_pr_av_coefoz(ncid, "a4", julien, press_in_edg, a4_mass) |
call regr_pr_av_coefoz(ncid, "a4", julien, a4_mass) |
91 |
a4_mass = a4_mass * 48. / 29. |
a4_mass = a4_mass * 48. / 29. |
92 |
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93 |
call regr_pr_av_coefoz(ncid, "a6", julien, press_in_edg, a6) |
call regr_pr_av_coefoz(ncid, "a6", julien, a6) |
94 |
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95 |
! Compute "a6_mass" avoiding underflow, do not divide by 1e4 |
! Compute "a6_mass" avoiding underflow, do not divide by 1e4 |
96 |
! before dividing by molecular mass: |
! before dividing by molecular mass: |
101 |
! (We use as few local variables as possible, in order to spare |
! (We use as few local variables as possible, in order to spare |
102 |
! main memory.) |
! main memory.) |
103 |
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104 |
call regr_pr_av_coefoz(ncid, "P_net_Mob", julien, press_in_edg, c_Mob) |
call regr_pr_av_coefoz(ncid, "P_net_Mob", julien, c_Mob) |
105 |
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106 |
call regr_pr_av_coefoz(ncid, "r_Mob", julien, press_in_edg, coefoz) |
call regr_pr_av_coefoz(ncid, "r_Mob", julien, coefoz) |
107 |
c_mob = c_mob - a2 * coefoz |
c_mob = c_mob - a2 * coefoz |
108 |
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109 |
call regr_pr_int_coefoz(ncid, "Sigma_Mob", julien, plev, top_value=0., & |
call regr_pr_int_coefoz(ncid, "Sigma_Mob", julien, top_value=0., v3=coefoz) |
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v3=coefoz) |
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110 |
c_mob = (c_mob - a6 * coefoz) * 48. / 29. |
c_mob = (c_mob - a6 * coefoz) * 48. / 29. |
111 |
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112 |
call regr_pr_av_coefoz(ncid, "temp_Mob", julien, press_in_edg, coefoz) |
call regr_pr_av_coefoz(ncid, "temp_Mob", julien, coefoz) |
113 |
c_mob = c_mob - a4_mass * coefoz |
c_mob = c_mob - a4_mass * coefoz |
114 |
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115 |
call regr_pr_av_coefoz(ncid, "R_Het", julien, press_in_edg, r_het_interm) |
call regr_pr_av_coefoz(ncid, "R_Het", julien, r_het_interm) |
116 |
! Heterogeneous chemistry is only at high latitudes: |
! Heterogeneous chemistry is only at high latitudes: |
117 |
forall (k = 1: llm) |
forall (k = 1: llm) |
118 |
where (abs(rlat) <= 45.) r_het_interm(:, k) = 0. |
where (abs(rlat) <= 45.) r_het_interm(:, k) = 0. |
119 |
end forall |
end forall |
120 |
r_het_interm = r_het_interm * (Clx / 3.8e-9)**2 |
r_het_interm = r_het_interm * (Clx / 3.8e-9)**2 |
121 |
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deallocate(plev) ! pointer |
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122 |
call nf95_close(ncid) |
call nf95_close(ncid) |
123 |
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124 |
end subroutine regr_pr_comb_coefoz |
end subroutine regr_pr_comb_coefoz |