source: trunk/LMDZ.GENERIC/libf/phystd/radinc_h.F90 @ 848

Last change on this file since 848 was 728, checked in by jleconte, 12 years ago

18/07/2012 == JL

  • New water cycle scheme:
    • largescale now in F90. Robustness increased by i) including evap inside largescale ii) computing the

condensed water amount iteratively

  • same improvements in moistadj.
  • Water thermodynamical data and saturation curves centralized in module watercommn_h
    • The saturation curves used are now Tetens formula as they are analyticaly inversible (Ts(P)-> Ps(T)).

New saturation curve yields very good agreement with the former one.

  • Saturation curves are now generalized for arbitrary water amount (not just q<<1)
  • The old watersat should be removed soon.
  • The effect of water vapor on total (surface) pressure can be taken into account by setting

mass_redistrib=.true. in callphys.def (routine mass_redistribution inspired from co2_condense in martian
model but with a different scheme as many routines evaporate/condense water vapor).

  • New cloud and precipitation scheme (JL + BC):
    • The default recovery assumption for computing the total cloud fraction has been changed (total random gave too

large cloud fractions). See totalcloudfrac.F90 for details and to change this.

  • Totalcloudfraction now set the total cloud fraction to the fraction of the

optically thickest cloud and totalcloudfrac is thus called in aeropacity.

  • Only the total cloud fraction is used to compute optical depth in aeropacity (no more effective

optical depth with exponential formula).

  • 4 precipitation schemes are now available (see rain.F90 for details). The choice can be made using precip_scheme

in callphys.def. Usage of the more physically based model of Boucher et al 95 (precip_scheme=4) is recommended.
default behavior is set to the former "simple scheme" (precip_scheme=1).

  • See rain.f90 to determine the parameter to be defined in callphys.def as a function of the precipitation scheme used.
  • Physiq.F90 now written in a matricial (more F90) way.
  • Radii (H2O and CO2 cloud particles, aerosols, duts, ...) calculations now centralized in module radii_mod.F90

and work with the new aerosol scheme implemented by Laura K. Some inconsistency may remain in callsedim.


Implementation compiled with ifort and pgf90.
gcm.e runs in Earth and Early Mars case with CO2 and H2O cycle + dust.

File size: 3.5 KB
Line 
1      module radinc_h
2
3      implicit none
4
5#include "dimensions.h"
6#include "bands.h"
7#include "scatterers.h"
8
9!======================================================================
10!
11!     RADINC.H
12!
13!     Includes for the radiation code; RADIATION LAYERS, LEVELS,
14!     number of spectral intervals. . .
15!
16!======================================================================
17
18!     RADIATION parameters
19
20!     In radiation code, layer 1 corresponds to the stratosphere.  Level
21!     1 is the top of the stratosphere.  The dummy layer is at the same
22!     temperature as the (vertically isothermal) stratosphere, and
23!     any time it is explicitly needed, the appropriate quantities will
24!     be dealt with (aka "top". . .)
25
26!     L_NLEVRAD corresponds to the surface - i.e., the GCM Level that
27!     is at the surface.  PLEV(L_NLEVRAD) = P(J,I)+PTROP,
28!     PLEV(2) = PTROP, PLEV(1) = ptop
29
30!     L_NLAYRAD is the number of radiation code layers
31!     L_NLEVRAD is the number of radiation code levels.  Level N is the
32!               top of layer N.
33!
34!     L_NSPECTI is the number of IR spectral intervals
35!     L_NSPECTV is the number of Visual(or Solar) spectral intervals
36!     L_NGAUSS  is the number of Gauss points for K-coefficients
37!               GAUSS POINT 17 (aka the last one) is the special case
38!
39!     L_NPREF   is the number of reference pressures that the
40!               k-coefficients are calculated on
41!     L_PINT    is the number of Lagrange interpolated reference
42!               pressures for the gas k-coefficients - now for a
43!               smaller p-grid than before
44!     L_NTREF   is the number of reference temperatures for the
45!               k-coefficients
46!     L_TAUMAX  is the largest optical depth - larger ones are set
47!               to this value
48!
49!     L_REFVAR  The number of different mixing ratio values for
50!               the k-coefficients. Variable component of the mixture
51!               can in princple be anything: currently it's H2O.
52!
53!     NAERKIND  The number of radiatively active aerosol types
54!
55!     NSIZEMAX  The maximum number of aerosol particle sizes
56!
57!----------------------------------------------------------------------
58
59      integer, parameter :: L_NLAYRAD  = llm
60      integer, parameter :: L_LEVELS   = 2*(llm-1)+3
61      integer, parameter :: L_NLEVRAD  = llm+1
62
63      ! These are set in sugas_corrk
64      ! [uses allocatable arrays] -- AS 12/2011
65      integer :: L_NPREF, L_NTREF, L_REFVAR, L_PINT
66
67      integer, parameter :: L_NGAUSS  = 17
68
69      integer, parameter :: L_NSPECTI = NBinfrared
70      integer, parameter :: L_NSPECTV = NBvisible
71
72!      integer, parameter :: NAERKIND  = 2 ! set in scatterers.h
73      real,    parameter :: L_TAUMAX  = 35
74
75      ! For Planck function integration:
76      ! equivalent temperatures are 1/NTfac of these values
77      integer, parameter :: NTstar = 500
78      integer, parameter :: NTstop = 15000 ! new default for all non hot Jupiter runs
79      real*8, parameter :: NTfac = 1.0D+1 
80      !integer, parameter :: NTstar = 1000
81      !integer, parameter :: NTstop = 25000
82      !real*8,parameter :: NTfac = 5.0D+1   
83      !integer, parameter :: NTstar = 2000
84      !integer, parameter :: NTstop = 50000
85      !real*8,parameter :: NTfac = 1.0D+2   
86
87      ! Maximum number of grain size classes for aerosol convolution:
88      ! This must correspond to size of largest dataset used for aerosol
89      ! optical properties in datagcm folder.
90      integer, parameter :: nsizemax = 60
91
92      character (len=100) :: corrkdir
93      save corrkdir
94
95      character (len=100) :: banddir
96      save banddir
97
98      end module radinc_h
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