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!
FUNCTION ISRCHILA ( ZLAO ) 33
*
*
#if defined (DOC)
*
***s/r FNCT ISRCHILA - Locate first latitude to the north of ZLAO
*
*
*Author: Luc Fillion RPN/AES Jan 1993
*Revision:
*
* -------------------
** Purpose: Used by subroutine BILIN to interpolate the model's variables
* . to the observation points.
*
*Arguments
* NJSUR : NUMBER OF LATITUDES IN VECTOR RLATI
* RLATI : LATITUDE (RADIANS, NEGATIVE FOR SOUTHERN HEMISPHERE)
* ZLAO : LATITUDE (RADIANS) OF THE OBSERVATION POINT
#endif
*
IMPLICIT NONE
*implicits
#include "comdim.cdk"
#include "comleg.cdk"
*
C
REAL*8 ZLAO
INTEGER IFOUND, J, ISRCHILA
C
C* 1. Search the first latitude circle
C
100 CONTINUE
ISRCHILA = 0
IFOUND = 0
J = NJBEG
101 J = J + 1
IF(ZLAO.GE.RLATI(J)) THEN
ISRCHILA = J - 1
IFOUND = 1
ENDIF
IF(IFOUND.EQ.0.AND.(J.LT.NJEND)) GO TO 101
C
RETURN
END