/[lmdze]/trunk/phylmd/Mobidic/regr_pr_comb_coefoz.f
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trunk/libf/phylmd/Mobidic/regr_pr_comb_coefoz.f90 revision 10 by guez, Fri Apr 18 14:45:53 2008 UTC trunk/phylmd/Mobidic/regr_pr_comb_coefoz.f revision 90 by guez, Wed Mar 12 21:16:36 2014 UTC
# Line 1  Line 1 
1  module regr_pr_comb_coefoz_m  module regr_pr_comb_coefoz_m
2    
   ! This module is clean: no C preprocessor directive, no include line.  
   
3    use dimens_m, only: llm    use dimens_m, only: llm
4    use dimphy, only: klon    use dimphy, only: klon
5    
# Line 48  contains Line 46  contains
46      ! -- packs the coefficients to the "physics" horizontal grid ;      ! -- packs the coefficients to the "physics" horizontal grid ;
47      ! -- combines the eight coefficients to define the five module variables.      ! -- combines the eight coefficients to define the five module variables.
48    
     ! We assume that, in "coefoz_LMDZ.nc", the pressure levels are in hPa  
     ! and strictly increasing.  
   
     use netcdf95, only: nf95_open, nf95_close, nf95_get_coord  
49      use netcdf, only: nf90_nowrite      use netcdf, only: nf90_nowrite
50      use regr_pr_coefoz, only: regr_pr_av_coefoz, regr_pr_int_coefoz      use netcdf95, only: nf95_open, nf95_close
51      use phyetat0_m, only: rlat      use phyetat0_m, only: rlat
52        use regr_pr_av_m, only: regr_pr_av
53        use regr_pr_int_m, only: regr_pr_int
54    
55      integer, intent(in):: julien ! jour julien, 1 <= julien <= 360      integer, intent(in):: julien ! jour julien, 1 <= julien <= 360
56    
57      ! Variables local to the procedure:      ! Variables local to the procedure:
     integer ncid ! for NetCDF  
58    
59      real, pointer:: plev(:)      integer ncid ! for NetCDF
     ! (pressure level of input data, converted to Pa, in strictly  
     ! increasing order)  
   
     integer n_plev ! number of pressure levels in the input data  
   
     real, allocatable:: press_in_edg(:)  
     ! (edges of pressure intervals for input data, in Pa, in strictly  
     ! increasing order)  
60    
61      real coefoz(klon, llm)      real coefoz(klon, llm)
62      ! (temporary storage for an ozone coefficient)      ! (temporary storage for an ozone coefficient)
# Line 97  contains Line 84  contains
84    
85      call nf95_open("coefoz_LMDZ.nc", nf90_nowrite, ncid)      call nf95_open("coefoz_LMDZ.nc", nf90_nowrite, ncid)
86    
87      call nf95_get_coord(ncid, "plev", plev)      call regr_pr_av(ncid, "a2", julien, a2)
     ! Convert from hPa to Pa because "regr_pr_av" and "regr_pr_int" require so:  
     plev = plev * 100.  
     n_plev = size(plev)  
   
     ! Compute edges of pressure intervals:  
     allocate(press_in_edg(n_plev + 1))  
     press_in_edg(1) = 0.  
     ! We choose edges halfway in logarithm:  
     forall (k = 2:n_plev) press_in_edg(k) = sqrt(plev(k - 1) * plev(k))  
     press_in_edg(n_plev + 1) = huge(0.)  
     ! (infinity, but any value guaranteed to be greater than the  
     ! surface pressure would do)  
   
     call regr_pr_av_coefoz(ncid, "a2", julien, press_in_edg, a2)  
88    
89      call regr_pr_av_coefoz(ncid, "a4", julien, press_in_edg, a4_mass)      call regr_pr_av(ncid, "a4", julien, a4_mass)
90      a4_mass = a4_mass * 48. / 29.      a4_mass = a4_mass * 48. / 29.
91    
92      call regr_pr_av_coefoz(ncid, "a6", julien, press_in_edg, a6)      call regr_pr_av(ncid, "a6", julien, a6)
93    
94      ! Compute "a6_mass" avoiding underflow, do not divide by 1e4      ! Compute "a6_mass" avoiding underflow, do not divide by 1e4
95      ! before dividing by molecular mass:      ! before dividing by molecular mass:
# Line 127  contains Line 100  contains
100      ! (We use as few local variables as possible, in order to spare      ! (We use as few local variables as possible, in order to spare
101      ! main memory.)      ! main memory.)
102    
103      call regr_pr_av_coefoz(ncid, "P_net_Mob", julien, press_in_edg, c_Mob)      call regr_pr_av(ncid, "P_net_Mob", julien, c_Mob)
104    
105      call regr_pr_av_coefoz(ncid, "r_Mob", julien, press_in_edg, coefoz)      call regr_pr_av(ncid, "r_Mob", julien, coefoz)
106      c_mob = c_mob - a2 * coefoz      c_mob = c_mob - a2 * coefoz
107    
108      call regr_pr_int_coefoz(ncid, "Sigma_Mob", julien, plev, top_value=0., &      call regr_pr_int(ncid, "Sigma_Mob", julien, top_value=0., v3=coefoz)
          v3=coefoz)  
109      c_mob = (c_mob - a6 * coefoz) * 48. / 29.      c_mob = (c_mob - a6 * coefoz) * 48. / 29.
110    
111      call regr_pr_av_coefoz(ncid, "temp_Mob", julien, press_in_edg, coefoz)      call regr_pr_av(ncid, "temp_Mob", julien, coefoz)
112      c_mob = c_mob - a4_mass * coefoz      c_mob = c_mob - a4_mass * coefoz
113    
114      call regr_pr_av_coefoz(ncid, "R_Het", julien, press_in_edg, r_het_interm)      call regr_pr_av(ncid, "R_Het", julien, r_het_interm)
115      ! Heterogeneous chemistry is only at high latitudes:      ! Heterogeneous chemistry is only at high latitudes:
116      forall (k = 1: llm)      forall (k = 1: llm)
117         where (abs(rlat) <= 45.) r_het_interm(:, k) = 0.         where (abs(rlat) <= 45.) r_het_interm(:, k) = 0.
118      end forall      end forall
119      where (r_het_interm  /= 0.) r_het_interm = r_het_interm * (Clx / 3.8e-9)**2      r_het_interm = r_het_interm * (Clx / 3.8e-9)**2
120    
     deallocate(plev) ! pointer  
121      call nf95_close(ncid)      call nf95_close(ncid)
122    
123    end subroutine regr_pr_comb_coefoz    end subroutine regr_pr_comb_coefoz
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