| 1 |
guez |
78 |
module flxbase_m |
| 2 |
|
|
|
| 3 |
|
|
IMPLICIT none |
| 4 |
|
|
|
| 5 |
|
|
contains |
| 6 |
|
|
|
| 7 |
|
|
SUBROUTINE flxbase(ptenh, pqenh, pgeoh, paph, ptu, pqu, plu, ldcum, kcbot, & |
| 8 |
|
|
klab) |
| 9 |
|
|
|
| 10 |
|
|
! This routine calculates cloud base values (T and Q). |
| 11 |
|
|
! Input are environmental values of T, q, p, Phi at half levels. |
| 12 |
|
|
! It returns cloud base values and flags as follows: |
| 13 |
|
|
! klab = 1 for subcloud levels |
| 14 |
|
|
! klab = 2 for condensation level |
| 15 |
|
|
|
| 16 |
|
|
! Lift surface air dry-adiabatically to cloud base |
| 17 |
|
|
! (non entraining plume, i. e. constant massflux) |
| 18 |
|
|
|
| 19 |
|
|
USE dimphy, ONLY: klev, klon |
| 20 |
|
|
USE flxadjtq_m, ONLY: flxadjtq |
| 21 |
|
|
USE suphec_m, ONLY: rcpd, retv |
| 22 |
|
|
|
| 23 |
|
|
REAL ptenh(klon, klev), pqenh(klon, klev) |
| 24 |
|
|
REAL, intent(in):: pgeoh(klon, klev), paph(klon, klev+1) |
| 25 |
|
|
REAL ptu(klon, klev), pqu(klon, klev), plu(klon, klev) |
| 26 |
|
|
LOGICAL ldcum(klon) |
| 27 |
|
|
INTEGER kcbot(klon), klab(klon, klev) |
| 28 |
|
|
|
| 29 |
|
|
! Local: |
| 30 |
|
|
LOGICAL llflag(klon) |
| 31 |
|
|
INTEGER i, k, icall, is |
| 32 |
|
|
REAL zbuo, zqold(klon) |
| 33 |
|
|
|
| 34 |
|
|
!---------------------------------------------------------------------- |
| 35 |
|
|
|
| 36 |
|
|
! INITIALIZE VALUES AT LIFTING LEVEL |
| 37 |
|
|
DO i = 1, klon |
| 38 |
|
|
klab(i, klev) = 1 |
| 39 |
|
|
kcbot(i) = klev-1 |
| 40 |
|
|
ldcum(i) = .FALSE. |
| 41 |
|
|
ENDDO |
| 42 |
|
|
|
| 43 |
|
|
! DO ASCENT IN SUBCLOUD LAYER, |
| 44 |
|
|
! CHECK FOR EXISTENCE OF CONDENSATION LEVEL, |
| 45 |
|
|
! ADJUST T, Q AND L ACCORDINGLY |
| 46 |
|
|
! CHECK FOR BUOYANCY AND SET FLAGS |
| 47 |
|
|
|
| 48 |
|
|
DO k = klev-1, 2, -1 |
| 49 |
|
|
is = 0 |
| 50 |
|
|
DO i = 1, klon |
| 51 |
|
|
IF (klab(i, k+1).EQ.1) is = is + 1 |
| 52 |
|
|
llflag(i) = .FALSE. |
| 53 |
|
|
IF (klab(i, k+1).EQ.1) llflag(i) = .TRUE. |
| 54 |
|
|
ENDDO |
| 55 |
|
|
|
| 56 |
|
|
IF (is.EQ.0) cycle |
| 57 |
|
|
|
| 58 |
|
|
DO i = 1, klon |
| 59 |
|
|
IF(llflag(i)) THEN |
| 60 |
|
|
pqu(i, k) = pqu(i, k+1) |
| 61 |
|
|
ptu(i, k) = ptu(i, k+1)+(pgeoh(i, k+1)-pgeoh(i, k))/RCPD |
| 62 |
|
|
zbuo = ptu(i, k)*(1.+RETV*pqu(i, k))- & |
| 63 |
|
|
ptenh(i, k)*(1.+RETV*pqenh(i, k))+0.5 |
| 64 |
|
|
IF (zbuo.GT.0.) klab(i, k) = 1 |
| 65 |
|
|
zqold(i) = pqu(i, k) |
| 66 |
|
|
ENDIF |
| 67 |
|
|
ENDDO |
| 68 |
|
|
|
| 69 |
|
|
icall = 1 |
| 70 |
|
|
CALL flxadjtq(paph(:, k), ptu(1, k), pqu(1, k), llflag, icall) |
| 71 |
|
|
|
| 72 |
|
|
DO i = 1, klon |
| 73 |
|
|
IF (llflag(i).AND.pqu(i, k).NE.zqold(i)) THEN |
| 74 |
|
|
klab(i, k) = 2 |
| 75 |
|
|
plu(i, k) = plu(i, k) + zqold(i)-pqu(i, k) |
| 76 |
|
|
zbuo = ptu(i, k)*(1.+RETV*pqu(i, k))- & |
| 77 |
|
|
ptenh(i, k)*(1.+RETV*pqenh(i, k))+0.5 |
| 78 |
|
|
IF (zbuo.GT.0.) kcbot(i) = k |
| 79 |
|
|
IF (zbuo.GT.0.) ldcum(i) = .TRUE. |
| 80 |
|
|
ENDIF |
| 81 |
|
|
ENDDO |
| 82 |
|
|
end DO |
| 83 |
|
|
|
| 84 |
|
|
END SUBROUTINE flxbase |
| 85 |
|
|
|
| 86 |
|
|
end module flxbase_m |
Parent Directory
| 
Revision Log