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jmc |
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C $Header: /u/gcmpack/MITgcm/pkg/cal/cal_subdates.F,v 1.2 2003/10/09 04:19:19 edhill Exp $ |
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edhill |
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C $Name: $ |
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heimbach |
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edhill |
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#include "CAL_OPTIONS.h" |
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heimbach |
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jmc |
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SUBROUTINE CAL_SUBDATES( |
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heimbach |
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I finaldate, |
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I initialdate, |
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O diffdate, |
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jmc |
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I myThid ) |
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heimbach |
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jmc |
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C ================================================================== |
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C SUBROUTINE cal_SubDates |
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C ================================================================== |
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C |
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C o Subtract two dates. In case calendar dates are given finaldate |
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C must be after initialdate. |
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C |
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C started: Christian Eckert eckert@mit.edu 30-Jun-1999 |
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C changed: Christian Eckert eckert@mit.edu 29-Dec-1999 |
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C - restructured the original version in order to have a |
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C better interface to the MITgcmUV. |
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C Christian Eckert eckert@mit.edu 03-Feb-2000 |
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C - Introduced new routine and function names, cal_<NAME>, |
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C for verion 0.1.3. |
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C |
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C ================================================================== |
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C SUBROUTINE cal_SubDates |
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C ================================================================== |
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heimbach |
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jmc |
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IMPLICIT NONE |
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heimbach |
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jmc |
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C == global variables == |
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#include "EEPARAMS.h" |
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heimbach |
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#include "cal.h" |
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jmc |
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C == routine arguments == |
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INTEGER finaldate(4) |
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INTEGER initialdate(4) |
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INTEGER diffdate(4) |
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INTEGER myThid |
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C == local variables == |
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INTEGER workdate(4) |
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INTEGER ierr |
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CHARACTER*(MAX_LEN_MBUF) msgBuf |
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C == end of interface == |
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IF ( cal_setStatus .LT. 1 ) THEN |
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WRITE( msgBuf,'(2A,4I9)') 'CAL_SUBDATES: ', 'finaldate=', |
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& finaldate(1),finaldate(2),finaldate(3),finaldate(4) |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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WRITE( msgBuf,'(2A,4I9)') 'CAL_SUBDATES: ', 'initialdate=', |
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& initialdate(1),initialdate(2),initialdate(3),initialdate(4) |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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WRITE( msgBuf,'(2A,I2,A)') 'CAL_SUBDATES: ', |
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& 'called too early (cal_setStatus=',cal_setStatus,' )' |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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STOP 'ABNORMAL END: S/R CAL_SUBDATES' |
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ENDIF |
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heimbach |
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if ((initialdate(4) .gt. 0) .eqv. |
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& ( finaldate(4) .gt. 0)) then |
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if (initialdate(4) .eq. -1) then |
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jmc |
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C The time interval is subtracted. |
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heimbach |
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workdate(1) = -initialdate(1) |
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workdate(2) = -initialdate(2) |
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workdate(3) = 0 |
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workdate(4) = -1 |
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jmc |
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call cal_AddTime( finaldate, workdate, diffdate, myThid ) |
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heimbach |
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else |
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jmc |
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C The time interval between initial and final date is calculated. |
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call cal_TimePassed( |
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& initialdate, finaldate, diffdate, myThid ) |
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heimbach |
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endif |
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else |
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ierr = 801 |
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jmc |
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call cal_PrintError( ierr, myThid ) |
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heimbach |
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stop ' stopped in cal_SubDates.' |
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endif |
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jmc |
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RETURN |
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END |
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