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c $Header: /u/gcmpack/MITgcm/pkg/exf/exf_getffieldrec.F,v 1.2 2002/12/19 13:44:51 cheisey Exp $ |
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#include "CPP_OPTIONS.h" |
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subroutine exf_GetFFieldRec( |
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I fldstartdate, fldperiod, |
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O fac, |
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O first, |
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O changed, |
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O count0, |
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O count1, |
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I mytime, |
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I myiter, |
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I mythid |
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& ) |
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|
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c ================================================================== |
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c SUBROUTINE exf_GetFFieldRec |
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c ================================================================== |
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c |
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c o Get flags, counters, and the linear interpolation factor for a |
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c given field. |
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c |
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c started: Christian Eckert eckert@mit.edu 30-Jun-1999 |
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c |
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c changed: Christian Eckert eckert@mit.edu 14-Jan-2000 |
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c - Restructured the code in order to create a package |
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c for the MITgcmUV. |
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c |
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c Christian Eckert eckert@mit.edu 12-Feb-2000 |
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c - Changed Routine names (package prefix: exf_) |
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c |
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c Curtis Heisey cheisey@mit.edu 19-Dec-2002 |
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c - added "repeatPeriod" for cycling of forcing datasets |
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c |
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c Dimitris Menemenlis menemenlis@jpl.nasa.gov 27-Dec-2002 |
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c - bug fix for verification/global_with_exf |
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c |
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c ================================================================== |
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c SUBROUTINE exf_GetFFieldRec |
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c ================================================================== |
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|
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implicit none |
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|
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c == global variables == |
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|
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c cal: modelstart, modelstep |
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#include "EEPARAMS.h" |
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#include "cal.h" |
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#include "exf_param.h" |
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|
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c == routine arguments == |
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|
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integer fldstartdate(4) |
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_RL fldperiod |
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_RL fac |
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logical first |
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logical changed |
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integer count0 |
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integer count1 |
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_RL mytime |
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integer myiter |
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integer mythid |
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|
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c == local variables == |
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|
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integer mydate(4) |
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integer previousdate(4) |
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integer difftime(4) |
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|
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integer fldcount |
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_RL fldsecs |
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_RL fldsecs0 |
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_RL fldsecs1 |
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integer prevfldcount |
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_RL prevfldsecs |
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integer flddate(4) |
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|
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|
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#ifdef EXF_VERBOSE |
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character*(max_len_mbuf) msgbuf |
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#endif |
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|
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c == end of interface == |
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c print *,'exf_GetFFieldRec: fldstartdate',fldstartdate |
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c print *,'exf_GetFFieldRec: fldperiod',fldperiod |
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c print *,'exf_GetFFieldRec: fac',fac |
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c print *,'exf_GetFFieldRec: first',first |
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c print *,'exf_GetFFieldRec: changed',changed |
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c print *,'exf_GetFFieldRec: count0',count0 |
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c print *,'exf_GetFFieldRec: count1',count1 |
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|
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c Determine the current date. |
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call cal_GetDate( myiter, mytime, mydate, mythid ) |
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c Determine the flux record just before mycurrentdate. |
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call cal_TimePassed( fldstartdate, mydate, difftime, mythid ) |
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call cal_ToSeconds( difftime, fldsecs, mythid ) |
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fldsecs = int(fldsecs/fldperiod)*fldperiod |
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fldcount = int(fldsecs/fldperiod) + 1 |
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|
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c If using repeating data (e.g. monthly means) then make |
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c fldsecs cycle around |
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if (repeatPeriod.ne.0.) then |
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fldsecs0=mod(fldsecs,repeatPeriod) |
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c print *,'repeat: ',fldsecs |
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c Determine the flux record just after mycurrentdate. |
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count0 = int(fldsecs0/fldperiod) + 1 |
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fldsecs1 = int((fldsecs+fldperiod)/fldperiod)*fldperiod |
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fldsecs1=mod(fldsecs1,repeatPeriod) |
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c print *,'repeat: ',fldsecs1 |
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count1 = int(fldsecs1/fldperiod) + 1 |
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endif |
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|
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c Set switches for reading new records. |
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first = ((mytime - modelstart) .lt. 0.5*modelstep) |
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if ( first) then |
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changed = .false. |
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else |
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call cal_GetDate( myiter-1, mytime-modelstep, |
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& previousdate, mythid ) |
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|
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call cal_TimePassed( fldstartdate, previousdate, difftime, |
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& mythid ) |
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call cal_ToSeconds( difftime, prevfldsecs, mythid ) |
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prevfldsecs = int(prevfldsecs/fldperiod)*fldperiod |
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prevfldcount = int(prevfldsecs/fldperiod) + 1 |
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|
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if (fldcount .ne. prevfldcount) then |
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changed = .true. |
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else |
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changed = .false. |
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endif |
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endif |
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|
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if (.NOT.repeatPeriod.ne.0.) then |
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count0 = fldcount |
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count1 = fldcount + 1 |
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endif |
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|
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call cal_TimeInterval( fldsecs, 'secs', difftime, mythid ) |
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call cal_AddTime( fldstartdate, difftime, flddate, mythid ) |
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call cal_TimePassed( flddate, mydate, difftime, mythid ) |
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call cal_ToSeconds( difftime, fldsecs, mythid ) |
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|
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c Weight belonging to irec for linear interpolation purposes. |
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c Note: The weight as chosen here is 1. - fac of the "old" MITgcm's |
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c estimation program. |
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fac = 1. - fldsecs/fldperiod |
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|
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#ifdef EXF_VERBOSE |
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c Do some printing for the protocol. |
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_BEGIN_MASTER( mythid ) |
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write(msgbuf,'(a)') ' ' |
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call print_message( msgbuf, standardmessageunit, |
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& SQUEEZE_RIGHT , mythid) |
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write(msgbuf,'(a,2x,l2,2x,l2,2x,D15.8)') |
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& ' exf_GetFFieldsRec: first, changed, fac:', |
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& first, changed, fac |
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call print_message( msgbuf, standardmessageunit, |
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& SQUEEZE_RIGHT , mythid) |
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write(msgbuf,'(a,i4,i4)') |
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& ' exf_GetFFieldsRec: count0, count1:', |
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& count0, count1 |
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call print_message( msgbuf, standardmessageunit, |
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& SQUEEZE_RIGHT , mythid) |
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write(msgbuf,'(a)') ' ' |
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call print_message( msgbuf, standardmessageunit, |
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& SQUEEZE_RIGHT , mythid) |
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_END_MASTER( mythid ) |
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#endif |
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|
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end |
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