/[lmdze]/trunk/Sources/phylmd/Conflx/flxadjtq.f
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Contents of /trunk/Sources/phylmd/Conflx/flxadjtq.f

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Revision 134 - (show annotations)
Wed Apr 29 15:47:56 2015 UTC (9 years, 1 month ago) by guez
File size: 2419 byte(s)
Sources inside, compilation outside.
1 module flxadjtq_m
2
3 IMPLICIT none
4
5 contains
6
7 SUBROUTINE flxadjtq(pp, pt, pq, ldflag, kcall)
8
9 ! Objet : ajustement entre T et Q
10
11 USE dimphy, ONLY: klon
12 USE fcttre, ONLY: foede, foeew
13 USE suphec_m, ONLY: rcpd, retv, rlstt, rlvtt, rtt
14 USE yoethf_m, ONLY: r2es, r5ies, r5les
15
16 REAL, intent(in):: pp(klon)
17 real pt(klon), pq(klon)
18 LOGICAL, intent(in):: ldflag(klon)
19 INTEGER, intent(in):: kcall
20 ! Defines calculation as:
21 ! kcall = 0 env. T AND QS IN*CUINI*
22 ! kcall = 1 condensation in updrafts (e.g. cubase, cuasc)
23 ! kcall = 2 evaporation in downdrafts (e.g. cudlfs, cuddraf)
24
25 ! Local:
26 REAL zcond(klon), zcond1
27 REAL Z5alvcp, z5alscp, zalvdcp, zalsdcp
28 logical zdelta
29 real zcvm5, zldcp, zqsat, zcor
30 INTEGER is, i
31
32 !---------------------------------------------------------------------
33
34 z5alvcp = r5les*RLVTT/RCPD
35 z5alscp = r5ies*RLSTT/RCPD
36 zalvdcp = rlvtt/RCPD
37 zalsdcp = rlstt/RCPD
38
39 DO i = 1, klon
40 zcond(i) = 0.0
41 ENDDO
42
43 DO i = 1, klon
44 IF (ldflag(i)) THEN
45 zdelta = RTT >= pt(i)
46 zcvm5 = merge(z5alscp, z5alvcp, zdelta)
47 zldcp = merge(zalsdcp, zalvdcp, zdelta)
48 zqsat = R2ES * FOEEW(pt(i), zdelta) / pp(i)
49 zqsat = MIN(0.5, zqsat)
50 zcor = 1./(1.-RETV*zqsat)
51 zqsat = zqsat*zcor
52 zcond(i) = (pq(i)-zqsat) &
53 / (1. + FOEDE(pt(i), zdelta, zcvm5, zqsat, zcor))
54 IF (kcall.EQ.1) zcond(i) = MAX(zcond(i), 0.)
55 IF (kcall.EQ.2) zcond(i) = MIN(zcond(i), 0.)
56 pt(i) = pt(i) + zldcp*zcond(i)
57 pq(i) = pq(i) - zcond(i)
58 ENDIF
59 end DO
60
61 is = 0
62 DO i = 1, klon
63 IF (zcond(i).NE.0.) is = is + 1
64 ENDDO
65 IF (is /= 0) then
66 DO i = 1, klon
67 IF(ldflag(i).AND.zcond(i).NE.0.) THEN
68 zdelta = RTT >= pt(i)
69 zcvm5 = merge(z5alscp, z5alvcp, zdelta)
70 zldcp = merge(zalsdcp, zalvdcp, zdelta)
71 zqsat = R2ES* FOEEW(pt(i), zdelta) / pp(i)
72 zqsat = MIN(0.5, zqsat)
73 zcor = 1./(1.-RETV*zqsat)
74 zqsat = zqsat*zcor
75 zcond1 = (pq(i)-zqsat) &
76 / (1. + FOEDE(pt(i), zdelta, zcvm5, zqsat, zcor))
77 pt(i) = pt(i) + zldcp*zcond1
78 pq(i) = pq(i) - zcond1
79 ENDIF
80 end DO
81 end IF
82
83 END SUBROUTINE flxadjtq
84
85 end module flxadjtq_m

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