Argument Definitions (+ indicates altered content)

INTEGER ITIME, ITIME1, ITIME2, LEVEL INTEGER MEMIND(2), NX, NXMAX, NY INTEGER NYMAX, NZMAX REAL +XT, +YINT1, +YINT2, +YINT3 REAL +YT, YY1(0:NXMAX-1,0:NYMAX-1,NZMAX,2) REAL YY2(0:NXMAX-1,0:NYMAX-1,NZMAX,2) REAL YY3(0:NXMAX-1,0:NYMAX-1,NZMAX,2)

Description

i i i i i i i i i i i i i i i o o o Interpolation of meteorological fields on 2-d model layers. In horizontal direction bilinear interpolation interpolation is used. Temporally a linear interpolation is used. Three fields are interpolated at the same time. This is a special version of levlininterpol to save CPU time. 1 first time 2 second time Author: A. Stohl 30 August 1996 Variables: dt1,dt2 time differences between fields and current posit dz1,dz2 z distance between levels and current position height(nzmax) heights of the model levels indexh help variable indz the level closest to the current trajectory posit indzh help variable itime current time itime1 time of the first wind field itime2 time of the second wind field ix,jy x,y coordinates of lower left subgrid point level level at which interpolation shall be done memind(3) points to the places of the wind fields nx,ny actual field dimensions in x,y and z direction nxmax,nymax,nzmax maximum field dimensions in x,y and z direction xt current x coordinate yint the final interpolated value yt current y coordinate yy(0:nxmax,0:nymax,nzmax,3) meteorological field used for interpolatio zt current z coordinate

Source file:	interpol_rain.f

Intrinsic Functions Called

INTEGER INT REAL FLOAT

Local Variables (+ indicates altered content)

INTEGER +INDEXH, +IX, +IXP, +JY INTEGER +JYP, +M REAL +DDX, +DDY, +DT, +DT1 REAL +DT2, +P1, +P2, +P3 REAL +P4, +RDDX, +RDDY, +Y1(2) REAL +Y2(2), +Y3(2)