source: LMDZ5/branches/LMDZ5_SPLA/libf/phylmd/aeropt.F90

Last change on this file was 1992, checked in by lguez, 11 years ago

Converted to free source form files in libf/phylmd which were still in
fixed source form. The conversion was done using the polish mode of
the NAG Fortran Compiler.

In addition to converting to free source form, the processing of the
files also:

-- indented the code (including comments);

-- set Fortran keywords to uppercase, and set all other identifiers
to lower case;

-- added qualifiers to end statements (for example "end subroutine
conflx", instead of "end");

-- changed the terminating statements of all DO loops so that each
loop ends with an ENDDO statement (instead of a labeled continue).

-- replaced #include by include.
  • Property copyright set to
    Name of program: LMDZ
    Creation date: 1984
    Version: LMDZ5
    License: CeCILL version 2
    Holder: Laboratoire de m\'et\'eorologie dynamique, CNRS, UMR 8539
    See the license file in the root directory
  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 4.5 KB
Line 
1
2! $Id: aeropt.F90 1992 2014-03-05 13:19:12Z evignon $
3
4SUBROUTINE aeropt(pplay, paprs, t_seri, msulfate, rhcl, tau_ae, piz_ae, &
5    cg_ae, ai)
6
7  USE dimphy
8  IMPLICIT NONE
9
10
11
12  ! ym#include "dimensions.h"
13  ! ym#include "dimphy.h"
14  include "YOMCST.h"
15
16  ! Arguments:
17
18  REAL, INTENT (IN) :: paprs(klon, klev+1)
19  REAL, INTENT (IN) :: pplay(klon, klev), t_seri(klon, klev)
20  REAL, INTENT (IN) :: msulfate(klon, klev) ! masse sulfate ug SO4/m3  [ug/m^3]
21  REAL, INTENT (IN) :: rhcl(klon, klev) ! humidite relative ciel clair
22  REAL, INTENT (OUT) :: tau_ae(klon, klev, 2) ! epaisseur optique aerosol
23  REAL, INTENT (OUT) :: piz_ae(klon, klev, 2) ! single scattering albedo aerosol
24  REAL, INTENT (OUT) :: cg_ae(klon, klev, 2) ! asymmetry parameter aerosol
25  REAL, INTENT (OUT) :: ai(klon) ! POLDER aerosol index
26
27  ! Local
28
29  INTEGER i, k, inu
30  INTEGER rh_num, nbre_rh
31  PARAMETER (nbre_rh=12)
32  REAL rh_tab(nbre_rh)
33  REAL rh_max, delta, rh
34  PARAMETER (rh_max=95.)
35  DATA rh_tab/0., 10., 20., 30., 40., 50., 60., 70., 80., 85., 90., 95./
36  REAL zrho, zdz
37  REAL taue670(klon) ! epaisseur optique aerosol absorption 550 nm
38  REAL taue865(klon) ! epaisseur optique aerosol extinction 865 nm
39  REAL alpha_aer_sulfate(nbre_rh, 5) !--unit m2/g SO4
40  REAL alphasulfate
41
42  CHARACTER (LEN=20) :: modname = 'aeropt'
43  CHARACTER (LEN=80) :: abort_message
44
45
46  ! Proprietes optiques
47
48  REAL alpha_aer(nbre_rh, 2) !--unit m2/g SO4
49  REAL cg_aer(nbre_rh, 2)
50  DATA alpha_aer/.500130E+01, .500130E+01, .500130E+01, .500130E+01, &
51    .500130E+01, .616710E+01, .826850E+01, .107687E+02, .136976E+02, &
52    .162972E+02, .211690E+02, .354833E+02, .139460E+01, .139460E+01, &
53    .139460E+01, .139460E+01, .139460E+01, .173910E+01, .244380E+01, &
54    .332320E+01, .440120E+01, .539570E+01, .734580E+01, .136038E+02/
55  DATA cg_aer/.619800E+00, .619800E+00, .619800E+00, .619800E+00, &
56    .619800E+00, .662700E+00, .682100E+00, .698500E+00, .712500E+00, &
57    .721800E+00, .734600E+00, .755800E+00, .545600E+00, .545600E+00, &
58    .545600E+00, .545600E+00, .545600E+00, .583700E+00, .607100E+00, &
59    .627700E+00, .645800E+00, .658400E+00, .676500E+00, .708500E+00/
60  DATA alpha_aer_sulfate/4.910, 4.910, 4.910, 4.910, 6.547, 7.373, 8.373, &
61    9.788, 12.167, 14.256, 17.924, 28.433, 1.453, 1.453, 1.453, 1.453, 2.003, &
62    2.321, 2.711, 3.282, 4.287, 5.210, 6.914, 12.305, 4.308, 4.308, 4.308, &
63    4.308, 5.753, 6.521, 7.449, 8.772, 11.014, 12.999, 16.518, 26.772, 3.265, &
64    3.265, 3.265, 3.265, 4.388, 5.016, 5.775, 6.868, 8.745, 10.429, 13.457, &
65    22.538, 2.116, 2.116, 2.116, 2.116, 2.882, 3.330, 3.876, 4.670, 6.059, &
66    7.327, 9.650, 16.883/
67
68  DO i = 1, klon
69    taue670(i) = 0.0
70    taue865(i) = 0.0
71  END DO
72
73  DO k = 1, klev
74    DO i = 1, klon
75      IF (t_seri(i,k)==0) WRITE (*, *) 'aeropt T ', i, k, t_seri(i, k)
76      IF (pplay(i,k)==0) WRITE (*, *) 'aeropt p ', i, k, pplay(i, k)
77      zrho = pplay(i, k)/t_seri(i, k)/rd ! kg/m3
78      zdz = (paprs(i,k)-paprs(i,k+1))/zrho/rg ! m
79      rh = min(rhcl(i,k)*100., rh_max)
80      rh_num = int(rh/10.+1.)
81      IF (rh<0.) THEN
82        abort_message = 'aeropt: RH < 0 not possible'
83        CALL abort_gcm(modname, abort_message, 1)
84      END IF
85      IF (rh>85.) rh_num = 10
86      IF (rh>90.) rh_num = 11
87      delta = (rh-rh_tab(rh_num))/(rh_tab(rh_num+1)-rh_tab(rh_num))
88
89      inu = 1
90      tau_ae(i, k, inu) = alpha_aer(rh_num, inu) + delta*(alpha_aer(rh_num+1, &
91        inu)-alpha_aer(rh_num,inu))
92      tau_ae(i, k, inu) = tau_ae(i, k, inu)*msulfate(i, k)*zdz*1.E-6
93      piz_ae(i, k, inu) = 1.0
94      cg_ae(i, k, inu) = cg_aer(rh_num, inu) + delta*(cg_aer(rh_num+1,inu)- &
95        cg_aer(rh_num,inu))
96
97      inu = 2
98      tau_ae(i, k, inu) = alpha_aer(rh_num, inu) + delta*(alpha_aer(rh_num+1, &
99        inu)-alpha_aer(rh_num,inu))
100      tau_ae(i, k, inu) = tau_ae(i, k, inu)*msulfate(i, k)*zdz*1.E-6
101      piz_ae(i, k, inu) = 1.0
102      cg_ae(i, k, inu) = cg_aer(rh_num, inu) + delta*(cg_aer(rh_num+1,inu)- &
103        cg_aer(rh_num,inu))
104      ! jq
105      ! jq for aerosol index
106
107      alphasulfate = alpha_aer_sulfate(rh_num, 4) + &
108        delta*(alpha_aer_sulfate(rh_num+1,4)-alpha_aer_sulfate(rh_num,4)) !--m2/g
109
110      taue670(i) = taue670(i) + alphasulfate*msulfate(i, k)*zdz*1.E-6
111
112      alphasulfate = alpha_aer_sulfate(rh_num, 5) + &
113        delta*(alpha_aer_sulfate(rh_num+1,5)-alpha_aer_sulfate(rh_num,5)) !--m2/g
114
115      taue865(i) = taue865(i) + alphasulfate*msulfate(i, k)*zdz*1.E-6
116
117    END DO
118  END DO
119
120  DO i = 1, klon
121    ai(i) = (-log(max(taue670(i),0.0001)/max(taue865(i), &
122      0.0001))/log(670./865.))*taue865(i)
123  END DO
124
125  RETURN
126END SUBROUTINE aeropt
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