/[MITgcm]/MITgcm/pkg/ptracers/ptracers_reset.F
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Annotation of /MITgcm/pkg/ptracers/ptracers_reset.F

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Revision 1.1 - (hide annotations) (download)
Tue Jan 22 23:39:30 2013 UTC (11 years, 4 months ago) by jmc
Branch: MAIN
CVS Tags: checkpoint64e, checkpoint64d
from Ryan A.: code to allow to restart a tracer at regular time interval
  specifying a reset frequency and a reset-phase (for each tracers).

1 jmc 1.1 C $Header: $
2     C $Name: $
3    
4     #include "PTRACERS_OPTIONS.h"
5     #include "GAD_OPTIONS.h"
6    
7     C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
8     CBOP
9     C !ROUTINE: PTRACERS_RESET
10    
11     C !INTERFACE:
12     SUBROUTINE PTRACERS_RESET( myTime, myIter, myThid )
13    
14     C !DESCRIPTION:
15     C Re-initialize PTRACERS if it is the correct time to do so
16    
17     C !USES:
18     #include "PTRACERS_MOD.h"
19     IMPLICIT NONE
20     #include "SIZE.h"
21     #include "EEPARAMS.h"
22     #include "PARAMS.h"
23     #include "GRID.h"
24     #include "PTRACERS_SIZE.h"
25     #include "PTRACERS_PARAMS.h"
26     #include "PTRACERS_FIELDS.h"
27     #include "GAD.h"
28    
29     C !INPUT PARAMETERS:
30     C myThid :: thread number
31     INTEGER myIter
32     _RL myTime
33     INTEGER myThid
34    
35     #ifdef ALLOW_PTRACERS
36    
37     LOGICAL DIFFERENT_MULTIPLE
38     EXTERNAL DIFFERENT_MULTIPLE
39    
40     C !LOCAL VARIABLES:
41     C i,j,k,bi,bj,iTracer :: loop indices
42     C msgBuf :: Informational/error message buffer
43     INTEGER i,j,k,bi,bj,iTracer
44     CHARACTER*(MAX_LEN_MBUF) msgBuf
45    
46     #ifdef PTRACERS_ALLOW_DYN_STATE
47     INTEGER n
48     #endif
49     CEOP
50    
51     C Loop over tracers
52     DO iTracer = 1, PTRACERS_num
53    
54     C Check if it is time to reset this tracer
55     IF ( PTRACERS_resetFreq(iTracer).GT.0. .AND. myIter.GT.0 .AND.
56     & DIFFERENT_MULTIPLE( PTRACERS_resetFreq(iTracer),
57     & myTime + PTRACERS_resetPhase(iTracer), deltaTClock ) ) THEN
58    
59     C message
60     _BEGIN_MASTER( myThid )
61     WRITE(msgBuf,'(A,I2,I10)')
62     & '// PTRACER Resetting, (iTracer,t-step) = ',
63     & iTracer, myIter
64     CALL PRINT_MESSAGE( msgBuf, standardMessageUnit,
65     & SQUEEZE_RIGHT, myThid )
66     _END_MASTER( myThid )
67    
68     C Initialise again this tracer arrays
69     DO bj = myByLo(myThid), myByHi(myThid)
70     DO bi = myBxLo(myThid), myBxHi(myThid)
71     DO k=1,Nr
72     DO j=1-OLy,sNy+OLy
73     DO i=1-OLx,sNx+OLx
74     pTracer(i,j,k,bi,bj,iTracer) = PTRACERS_ref(k,iTracer)
75     gPtr(i,j,k,bi,bj,iTracer) = 0. _d 0
76     gpTrNm1(i,j,k,bi,bj,iTracer) = 0. _d 0
77     ENDDO
78     ENDDO
79     ENDDO
80     ENDDO
81     ENDDO
82    
83     C Read initial conditions and exchange
84     IF ( PTRACERS_initialFile(iTracer) .NE. ' ' ) THEN
85     CALL READ_FLD_XYZ_RL(PTRACERS_initialFile(iTracer),' ',
86     & pTracer(1-OLx,1-OLy,1,1,1,iTracer),0,myThid)
87     _EXCH_XYZ_RL(pTracer(1-OLx,1-OLy,1,1,1,iTracer),myThid)
88     ENDIF
89    
90     C Apply mask and reset tendencies
91     DO bj = myByLo(myThid), myByHi(myThid)
92     DO bi = myBxLo(myThid), myBxHi(myThid)
93     DO k=1,Nr
94     DO j=1-OLy,sNy+OLy
95     DO i=1-OLx,sNx+OLx
96     IF (maskC(i,j,k,bi,bj).EQ.0.)
97     & pTracer(i,j,k,bi,bj,iTracer)=0. _d 0
98     ENDDO
99     ENDDO
100     ENDDO
101     ENDDO
102     ENDDO
103    
104     #ifdef PTRACERS_ALLOW_DYN_STATE
105     C Initialize SOM array :
106     IF ( PTRACERS_SOM_Advection(iTracer) ) THEN
107     _BEGIN_MASTER( myThid )
108     WRITE(msgBuf,'(A,I3,A)')'PTRACERS_RESET: iTracer = ',
109     & iTracer, ' : resetting 2nd-order moments '
110     CALL PRINT_MESSAGE( msgBuf, standardMessageUnit,
111     & SQUEEZE_RIGHT, myThid )
112     _END_MASTER( myThid )
113     DO bj = myByLo(myThid), myByHi(myThid)
114     DO bi = myBxLo(myThid), myBxHi(myThid)
115     DO n = 1,nSOM
116     DO k=1,Nr
117     DO j=1-OLy,sNy+OLy
118     DO i=1-OLx,sNx+OLx
119     _Ptracers_som(i,j,k,bi,bj,n,iTracer) = 0. _d 0
120     ENDDO
121     ENDDO
122     ENDDO
123     ENDDO
124     ENDDO
125     ENDDO
126     c CALL GAD_EXCH_SOM( _Ptracers_som(:,:,:,:,:,:,iTracer),
127     c & Nr, myThid )
128     ENDIF
129     #endif /* PTRACERS_ALLOW_DYN_STATE */
130    
131     _BEGIN_MASTER( myThid )
132     WRITE(msgBuf,'(A)') ' '
133     CALL PRINT_MESSAGE( msgBuf, standardMessageUnit,
134     & SQUEEZE_RIGHT, myThid )
135     _END_MASTER( myThid )
136    
137     C end of reset if block
138     ENDIF
139     C end of Tracer loop
140     ENDDO
141    
142     #endif /* ALLOW_PTRACERS */
143    
144     RETURN
145     END

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