1 |
module swu_m |
2 |
|
3 |
IMPLICIT NONE |
4 |
|
5 |
contains |
6 |
|
7 |
SUBROUTINE swu(psct, pcldsw, ppmb, ppsol, prmu0, pfrac, ptave, pwv, paki, & |
8 |
pcld, pclear, pdsig, pfact, prmu, psec, pud) |
9 |
|
10 |
USE clesphys, only: rco2 |
11 |
USE suphec_m, only: rg |
12 |
USE raddim, only: kdlon, kflev |
13 |
USE radepsi, only: zepscq, zepsec |
14 |
USE radopt, only: novlp |
15 |
|
16 |
! ARGUMENTS: |
17 |
|
18 |
DOUBLE PRECISION, intent(in):: psct |
19 |
DOUBLE PRECISION, intent(in):: pcldsw(kdlon, kflev) |
20 |
DOUBLE PRECISION, intent(in):: ppmb(kdlon, kflev + 1) |
21 |
DOUBLE PRECISION, intent(in):: ppsol(kdlon) |
22 |
DOUBLE PRECISION, intent(in):: prmu0(kdlon) |
23 |
DOUBLE PRECISION, intent(in):: pfrac(kdlon) |
24 |
DOUBLE PRECISION, intent(in):: ptave(kdlon, kflev) |
25 |
DOUBLE PRECISION, intent(in):: pwv(kdlon, kflev) |
26 |
|
27 |
DOUBLE PRECISION paki(kdlon, 2) |
28 |
DOUBLE PRECISION pcld(kdlon, kflev) |
29 |
DOUBLE PRECISION pclear(kdlon) |
30 |
DOUBLE PRECISION pdsig(kdlon, kflev) |
31 |
DOUBLE PRECISION pfact(kdlon) |
32 |
DOUBLE PRECISION prmu(kdlon) |
33 |
DOUBLE PRECISION psec(kdlon) |
34 |
DOUBLE PRECISION pud(kdlon, 5, kflev + 1) |
35 |
|
36 |
! Local: |
37 |
|
38 |
INTEGER iind(2) |
39 |
DOUBLE PRECISION zc1j(kdlon, kflev + 1) |
40 |
DOUBLE PRECISION zclear(kdlon) |
41 |
DOUBLE PRECISION zcloud(kdlon) |
42 |
DOUBLE PRECISION zn175(kdlon) |
43 |
DOUBLE PRECISION zn190(kdlon) |
44 |
DOUBLE PRECISION zo175(kdlon) |
45 |
DOUBLE PRECISION zo190(kdlon) |
46 |
DOUBLE PRECISION zsign(kdlon) |
47 |
DOUBLE PRECISION zr(kdlon, 2) |
48 |
DOUBLE PRECISION zsigo(kdlon) |
49 |
DOUBLE PRECISION zud(kdlon, 2) |
50 |
DOUBLE PRECISION zrth, zrtu, zwh2o, zdsco2, zdsh2o, zfppw |
51 |
INTEGER jl, jk, jkp1, jkl, ja |
52 |
|
53 |
! Prescribed Data: |
54 |
|
55 |
DOUBLE PRECISION zpdh2o, zpdumg |
56 |
SAVE zpdh2o, zpdumg |
57 |
DOUBLE PRECISION zprh2o, zprumg |
58 |
SAVE zprh2o, zprumg |
59 |
DOUBLE PRECISION rtdh2o, rtdumg |
60 |
SAVE rtdh2o, rtdumg |
61 |
DOUBLE PRECISION rth2o, rtumg |
62 |
SAVE rth2o, rtumg |
63 |
DATA zpdh2o, zpdumg /0.8d0, 0.75d0/ |
64 |
DATA zprh2o, zprumg /30000.d0, 30000.d0/ |
65 |
DATA rtdh2o, rtdumg /0.40d0, 0.375d0/ |
66 |
DATA rth2o, rtumg /240.d0, 240.d0/ |
67 |
|
68 |
!------------------------------------------------------------------ |
69 |
|
70 |
! 1. COMPUTES AMOUNTS OF ABSORBERS |
71 |
|
72 |
iind(1) = 1 |
73 |
iind(2) = 2 |
74 |
|
75 |
! 1.1 INITIALIZES QUANTITIES |
76 |
|
77 |
DO jl = 1, kdlon |
78 |
pud(jl, 1, kflev + 1) = 0. |
79 |
pud(jl, 2, kflev + 1) = 0. |
80 |
pud(jl, 3, kflev + 1) = 0. |
81 |
pud(jl, 4, kflev + 1) = 0. |
82 |
pud(jl, 5, kflev + 1) = 0. |
83 |
pfact(jl) = prmu0(jl) * pfrac(jl) * psct |
84 |
prmu(jl) = sqrt(1224. * prmu0(jl) * prmu0(jl) + 1.) / 35. |
85 |
psec(jl) = 1. / prmu(jl) |
86 |
zc1j(jl, kflev + 1) = 0. |
87 |
END DO |
88 |
|
89 |
! 1.3 AMOUNTS OF ABSORBERS |
90 |
|
91 |
DO jl = 1, kdlon |
92 |
zud(jl, 1) = 0. |
93 |
zud(jl, 2) = 0. |
94 |
zo175(jl) = ppsol(jl)**(zpdumg + 1.) |
95 |
zo190(jl) = ppsol(jl)**(zpdh2o + 1.) |
96 |
zsigo(jl) = ppsol(jl) |
97 |
zclear(jl) = 1. |
98 |
zcloud(jl) = 0. |
99 |
END DO |
100 |
|
101 |
DO jk = 1, kflev |
102 |
jkp1 = jk + 1 |
103 |
jkl = kflev + 1 - jk |
104 |
DO jl = 1, kdlon |
105 |
zrth = (rth2o / ptave(jl, jk))**rtdh2o |
106 |
zrtu = (rtumg / ptave(jl, jk))**rtdumg |
107 |
zwh2o = max(pwv(jl, jk), zepscq) |
108 |
zsign(jl) = 100. * ppmb(jl, jkp1) |
109 |
pdsig(jl, jk) = (zsigo(jl) - zsign(jl)) / ppsol(jl) |
110 |
zn175(jl) = zsign(jl)**(zpdumg + 1.) |
111 |
zn190(jl) = zsign(jl)**(zpdh2o + 1.) |
112 |
zdsco2 = zo175(jl) - zn175(jl) |
113 |
zdsh2o = zo190(jl) - zn190(jl) |
114 |
pud(jl, 1, jk) = 1. / (10. * rg * (zpdh2o + 1.)) / zprh2o**zpdh2o & |
115 |
* zdsh2o * zwh2o * zrth |
116 |
pud(jl, 2, jk) = 1. / (10. * rg * (zpdumg + 1.)) / zprumg**zpdumg & |
117 |
* zdsco2 * rco2 * zrtu |
118 |
zfppw = 1.6078 * zwh2o / (1. + 0.608 * zwh2o) |
119 |
pud(jl, 4, jk) = pud(jl, 1, jk) * zfppw |
120 |
pud(jl, 5, jk) = pud(jl, 1, jk) * (1. - zfppw) |
121 |
zud(jl, 1) = zud(jl, 1) + pud(jl, 1, jk) |
122 |
zud(jl, 2) = zud(jl, 2) + pud(jl, 2, jk) |
123 |
zsigo(jl) = zsign(jl) |
124 |
zo175(jl) = zn175(jl) |
125 |
zo190(jl) = zn190(jl) |
126 |
|
127 |
IF (novlp==1) THEN |
128 |
zclear(jl) = zclear(jl) & |
129 |
* (1. - max(pcldsw(jl, jkl), zcloud(jl))) & |
130 |
/ (1. - min(zcloud(jl), 1. - zepsec)) |
131 |
zc1j(jl, jkl) = 1.0 - zclear(jl) |
132 |
zcloud(jl) = pcldsw(jl, jkl) |
133 |
ELSE IF (novlp==2) THEN |
134 |
zcloud(jl) = max(pcldsw(jl, jkl), zcloud(jl)) |
135 |
zc1j(jl, jkl) = zcloud(jl) |
136 |
ELSE IF (novlp==3) THEN |
137 |
zclear(jl) = zclear(jl) * (1. - pcldsw(jl, jkl)) |
138 |
zcloud(jl) = 1.0 - zclear(jl) |
139 |
zc1j(jl, jkl) = zcloud(jl) |
140 |
END IF |
141 |
END DO |
142 |
END DO |
143 |
DO jl = 1, kdlon |
144 |
pclear(jl) = 1. - zc1j(jl, 1) |
145 |
END DO |
146 |
DO jk = 1, kflev |
147 |
DO jl = 1, kdlon |
148 |
IF (pclear(jl)<1.) THEN |
149 |
pcld(jl, jk) = pcldsw(jl, jk) / (1. - pclear(jl)) |
150 |
ELSE |
151 |
pcld(jl, jk) = 0. |
152 |
END IF |
153 |
END DO |
154 |
END DO |
155 |
|
156 |
! 1.4 COMPUTES CLEAR-SKY GREY ABSORPTION COEFFICIENTS |
157 |
|
158 |
DO ja = 1, 2 |
159 |
DO jl = 1, kdlon |
160 |
zud(jl, ja) = zud(jl, ja) * psec(jl) |
161 |
END DO |
162 |
END DO |
163 |
|
164 |
CALL swtt1(2, 2, iind, zud, zr) |
165 |
|
166 |
DO ja = 1, 2 |
167 |
DO jl = 1, kdlon |
168 |
paki(jl, ja) = - log(zr(jl, ja)) / zud(jl, ja) |
169 |
END DO |
170 |
END DO |
171 |
|
172 |
END SUBROUTINE swu |
173 |
|
174 |
end module swu_m |