| 1 |
molod |
1.3 |
C $Header: $ |
| 2 |
|
|
C $Name: $ |
| 3 |
|
|
#include "DIAG_OPTIONS.h" |
| 4 |
|
|
subroutine prestopres (qprs,qinp,pkz,pksrf,ptop,p,im,jm,lm,myThid) |
| 5 |
molod |
1.1 |
C*********************************************************************** |
| 6 |
|
|
C |
| 7 |
|
|
C PURPOSE |
| 8 |
|
|
C To interpolate an arbitrary quantity to Specified Pressure Levels |
| 9 |
|
|
C |
| 10 |
|
|
C INPUT |
| 11 |
|
|
C QINP .. QINP (im,jm,lm) Arbitrary Input Quantity |
| 12 |
|
|
C PKZ ... PKZ (im,jm,lm) Pressure to the Kappa at Input Levels |
| 13 |
|
|
C PKSRF . PKSRF(im,jm) Surface Pressure to the Kappa |
| 14 |
|
|
C PTOP .. Pressure at Input-Level-Edge (1) (top of model) |
| 15 |
|
|
C P ..... Output Pressure Level (mb) |
| 16 |
|
|
C IM .... Longitude Dimension of Input |
| 17 |
|
|
C JM .... Latitude Dimension of Input |
| 18 |
|
|
C LM .... Vertical Dimension of Input |
| 19 |
|
|
C |
| 20 |
|
|
C OUTPUT |
| 21 |
|
|
C QPRS .. QPRS (im,jm) Arbitrary Quantity at Pressure p |
| 22 |
|
|
C |
| 23 |
|
|
C NOTE |
| 24 |
|
|
C Quantity is interpolated Linear in P**Kappa. |
| 25 |
|
|
C Between PTOP**Kappa and PKZ(1), quantity is extrapolated. |
| 26 |
|
|
C Between PKSRF**Kappa and PKZ(LM), quantity is extrapolated. |
| 27 |
|
|
C Undefined Input quantities are not used. |
| 28 |
molod |
1.2 |
C Finally: This routine assumes that pressure levels are counted |
| 29 |
|
|
C top down -- ie, level 1 is the top, level lm is the bottom |
| 30 |
molod |
1.1 |
C |
| 31 |
|
|
C*********************************************************************** |
| 32 |
|
|
C |
| 33 |
|
|
implicit none |
| 34 |
molod |
1.3 |
integer i,l,im,jm,lm,myThid |
| 35 |
molod |
1.1 |
|
| 36 |
molod |
1.3 |
_RL qprs(im,jm) |
| 37 |
|
|
_RL qinp(im,jm,lm) |
| 38 |
|
|
_RL pkz(im,jm,lm) |
| 39 |
|
|
_RL pksrf(im,jm) |
| 40 |
molod |
1.1 |
|
| 41 |
molod |
1.3 |
_RL ptop,p,undef,kappa,getcon |
| 42 |
|
|
_RL pk,pkmin,pkmax,pktop,temp |
| 43 |
molod |
1.1 |
|
| 44 |
|
|
undef = getcon('UNDEF') |
| 45 |
|
|
kappa = getcon('KAPPA') |
| 46 |
|
|
|
| 47 |
|
|
pk = p**kappa |
| 48 |
molod |
1.2 |
if(ptop.ne.0.) then |
| 49 |
|
|
pktop = ptop**kappa |
| 50 |
|
|
else |
| 51 |
|
|
pktop = 0. |
| 52 |
|
|
endif |
| 53 |
molod |
1.1 |
|
| 54 |
|
|
c Initialize to UNDEFINED |
| 55 |
|
|
c ----------------------- |
| 56 |
|
|
do i=1,im*jm |
| 57 |
|
|
qprs(i,1) = undef |
| 58 |
|
|
enddo |
| 59 |
|
|
|
| 60 |
|
|
c Interpolate to Pressure Between Input Levels |
| 61 |
|
|
c -------------------------------------------- |
| 62 |
|
|
do L=1,lm-1 |
| 63 |
|
|
pkmin = pkz(1,1,L) |
| 64 |
|
|
pkmax = pkz(1,1,L+1) |
| 65 |
|
|
|
| 66 |
|
|
do i=2,im*jm |
| 67 |
|
|
if( pkz(i,1,L) .lt.pkmin ) pkmin = pkz(i,1,L) |
| 68 |
|
|
if( pkz(i,1,L+1).gt.pkmax ) pkmax = pkz(i,1,L+1) |
| 69 |
|
|
enddo |
| 70 |
|
|
|
| 71 |
|
|
if( pk.le.pkmax .and. pk.ge.pkmin ) then |
| 72 |
|
|
do i=1,im*jm |
| 73 |
|
|
if( pk.le.pkz(i,1,L+1) .and. pk.ge.pkz(i,1,L) ) then |
| 74 |
|
|
temp = ( pkz(i,1,L)-pk ) / ( pkz(i,1,L)-pkz(i,1,L+1) ) |
| 75 |
|
|
|
| 76 |
|
|
if( qinp(i,1,L) .ne.undef .and. |
| 77 |
|
|
. qinp(i,1,L+1).ne.undef ) then |
| 78 |
|
|
qprs(i,1) = qinp(i,1,L+1)*temp + qinp(i,1,L)*(1.-temp) |
| 79 |
|
|
else if( qinp(i,1,L+1).ne.undef .and. temp.ge.0.5 ) then |
| 80 |
|
|
qprs(i,1) = qinp(i,1,L+1) |
| 81 |
|
|
else if( qinp(i,1,L) .ne.undef .and. temp.le.0.5 ) then |
| 82 |
|
|
qprs(i,1) = qinp(i,1,L) |
| 83 |
|
|
endif |
| 84 |
|
|
|
| 85 |
|
|
endif |
| 86 |
|
|
enddo |
| 87 |
|
|
endif |
| 88 |
|
|
|
| 89 |
|
|
enddo |
| 90 |
|
|
|
| 91 |
|
|
do i=1,im*jm |
| 92 |
|
|
c Extrapolate to Pressure between Ptop and First Input Level |
| 93 |
|
|
c ---------------------------------------------------------- |
| 94 |
|
|
if( pk.le.pkz(i,1,1) .and. pk.ge.pktop ) then |
| 95 |
|
|
temp = ( pkz(i,1,1)-pk ) / ( pkz(i,1,1)-pkz(i,1,2) ) |
| 96 |
|
|
|
| 97 |
|
|
if( qinp(i,1,1).ne.undef .and. |
| 98 |
|
|
. qinp(i,1,2).ne.undef ) then |
| 99 |
|
|
qprs(i,1) = qinp(i,1,2)*temp + qinp(i,1,1)*(1.-temp) |
| 100 |
|
|
else if( qinp(i,1,1).ne.undef ) then |
| 101 |
|
|
qprs(i,1) = qinp(i,1,1) |
| 102 |
|
|
endif |
| 103 |
|
|
|
| 104 |
|
|
endif |
| 105 |
|
|
|
| 106 |
|
|
c Extrapolate to Pressure between Psurf and Lowest Input Level |
| 107 |
|
|
c ------------------------------------------------------------ |
| 108 |
|
|
if( pk.le.pksrf(i,1) .and. pk.ge.pkz(i,1,lm ) ) then |
| 109 |
|
|
temp = ( pkz(i,1,lm)-pk ) / ( pkz(i,1,lm)-pkz(i,1,lm-1) ) |
| 110 |
|
|
|
| 111 |
|
|
if( qinp(i,1,lm) .ne.undef .and. |
| 112 |
|
|
. qinp(i,1,lm-1).ne.undef ) then |
| 113 |
|
|
qprs(i,1) = qinp(i,1,lm-1)*temp + qinp(i,1,lm)*(1.-temp) |
| 114 |
|
|
else if( qinp(i,1,lm) .ne.undef ) then |
| 115 |
|
|
qprs(i,1) = qinp(i,1,lm) |
| 116 |
|
|
endif |
| 117 |
|
|
|
| 118 |
|
|
endif |
| 119 |
|
|
enddo |
| 120 |
|
|
|
| 121 |
|
|
return |
| 122 |
|
|
end |
Parent Directory
| 
Revision Log
| 
Revision Graph