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C Copyright 1981-2007 ECMWF
C
C Licensed under the GNU Lesser General Public License which
C incorporates the terms and conditions of version 3 of the GNU
C General Public License.
C See LICENSE and gpl-3.0.txt for details.
C
INTEGER FUNCTION HGETLSM(KGAUSS,OLDLSM,KSIZE)
C
C---->
C**** HGETLSM
C
C Purpose
C -------
C
C This routine reads a file of reduced gaussian field land-sea
C mask values.
C
C
C Interface
C ---------
C
C IRET = HGETLSM(KGAUSS,OLDLSM,KSIZE)
C
C
C Input parameters
C ----------------
C
C KGAUSS - Gaussian number of the reduced gaussian field
C KSIZE - Number of bytes to read into OLDLSM
C
C
C Output parameters
C -----------------
C
C OLDLSM - The array of values for the reduced gaussian field
C
C Returns 0 if function successful, non-zero otherwise.
C
C Common block usage
C ------------------
C
C None
C
C
C Method
C ------
C
C Gets pathname from HIRLAM_LSM_PATH and reads land-sea mask
C from a file.
C
C
C Externals
C ---------
C
C GETENV - Read environment variable
C INTLOG - Log error message.
C PBOPEN - Open land-sea mask file
C PBREAD - Read land-sea mask file
C PBCLOSE - Close land-sea mask file
C
C
C Reference
C ---------
C
C None.
C
C
C Comments
C --------
C
C None.
C
C
C Author
C ------
C
C J.D.Chambers ECMWF March 2001
C
C
C Modifications
C -------------
C
C Replace PBOPEN, etc by PBOPEN3, etc on VPP.
C J.D.Chambers ECMWF December 2001
C
C----<
C -----------------------------------------------------------------|
C* Section 0. Definition of variables.
C -----------------------------------------------------------------|
C
IMPLICIT NONE
C
#include "parim.h"
#include "nifld.common"
#include "nofld.common"
C
C Function arguments
C
INTEGER KGAUSS, KSIZE
REAL OLDLSM(*)
C
C Local variables
C
CHARACTER*256 FILENAME
CHARACTER*256 YPNORMAS,YENVBACK
CHARACTER*56 YPNORMAL
CHARACTER*7 VPP
CHARACTER*4 YGAUSS
INTEGER IOFFS, IOFFSET, IUNIT, IRET
PARAMETER (YPNORMAL ='/usr/local/lib/metaps/tables/interpolation')
#ifdef TABLE_PATH
DATA YPNORMAS / TABLE_PATH /
#else
DATA YPNORMAS / '' /
#endif
C
C -----------------------------------------------------------------|
C Section 1. Initialise.
C -----------------------------------------------------------------|
C
100 CONTINUE
C
HGETLSM = 0
C
CALL JDEBUG()
C
C -----------------------------------------------------------------|
C Section 2. Build the land-sea mask file pathname
C -----------------------------------------------------------------|
C
200 CONTINUE
C
C
C See if the environment variable points to a directory
C
C
FILENAME = YPNORMAL
C
IOFFSET = INDEX(YPNORMAS,' ') - 1
IF(IOFFSET.GT.0) THEN
FILENAME = YPNORMAS(1:IOFFSET)//'/land_sea_mask/'
ENDIF
CALL GETENV('HIRLAM_LSM_PATH', YENVBACK)
IOFFSET = INDEX(YENVBACK,' ') - 1
IF(IOFFSET.GT.0) THEN
FILENAME = YENVBACK(1:IOFFSET)//'/land_sea_mask/'
ENDIF
C
C Complete the filename
C
IOFFS = INDEX(FILENAME,' ')
FILENAME(IOFFS:(IOFFS+7)) = '/LSM_GG_'
IOFFS = INDEX(FILENAME,' ')
WRITE(YGAUSS,'(I4.4)') KGAUSS
FILENAME(IOFFS:(IOFFS+4)) = YGAUSS
C
IOFFS = INDEX(FILENAME,' ')
CALL INTLOG(JP_DEBUG,'HGETLSM: land-sea mask filename',JPQUIET)
CALL INTLOG(JP_DEBUG,'HGETLSM: ' // FILENAME(1:(IOFFS-1)),JPQUIET)
C
C -----------------------------------------------------------------|
C Section 3. Read the land-sea mask values
C -----------------------------------------------------------------|
C
300 CONTINUE
C
#ifdef __uxp__
CALL PBOPEN3(IUNIT,FILENAME(1:(IOFFS-1)),'r',IRET)
#else
CALL PBOPEN(IUNIT,FILENAME(1:(IOFFS-1)),'r',IRET)
#endif
IF( IRET.NE.0 ) THEN
CALL INTLOG(JP_DEBUG,'HGETLSM: PBOPEN Iret',IRET)
CALL INTLOG(JP_DEBUG,'HGETLSM: PBOPEN failed',JPQUIET)
HGETLSM = 3
GOTO 900
ENDIF
C
#ifdef __uxp__
CALL PBREAD3(IUNIT,OLDLSM,KSIZE,IRET)
#else
CALL PBREAD(IUNIT,OLDLSM,KSIZE,IRET)
#endif
IF( IRET.NE.KSIZE ) THEN
CALL INTLOG(JP_DEBUG,'HGETLSM: PBREAD failed',JPQUIET)
HGETLSM = 3
GOTO 900
ENDIF
C
#ifdef __uxp__
CALL PBCLOSE3(IUNIT,IRET)
#else
CALL PBCLOSE(IUNIT,IRET)
#endif
IF( IRET.NE.0 ) THEN
CALL INTLOG(JP_DEBUG,'HGETLSM: PBCLOSE failed',JPQUIET)
HGETLSM = 3
GOTO 900
ENDIF
C
C -----------------------------------------------------------------|
C Section 9. Return.
C -----------------------------------------------------------------|
C
900 CONTINUE
C
RETURN
END
|
