/[MITgcm]/MITgcm/pkg/monitor/mon_stats_rl.F
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Contents of /MITgcm/pkg/monitor/mon_stats_rl.F

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Revision 1.2 - (show annotations) (download)
Mon Jun 4 20:04:24 2001 UTC (23 years ago) by adcroft
Branch: MAIN
CVS Tags: checkpoint40pre3, checkpoint40pre1, checkpoint40pre7, checkpoint40pre6, checkpoint40pre9, checkpoint40pre8, release1_b1, checkpoint43, checkpoint40pre2, checkpoint40pre4, checkpoint40pre5, ecco-branch-mod1, release1_beta1, checkpoint42, checkpoint40, checkpoint41
Branch point for: release1, ecco-branch, release1_coupled
Changes since 1.1: +4 -4 lines
Using more robust calculation of S.D.; alternative gives exactly zero
when it should be zero but can also cause NaNs

1 C $Header: /u/gcmpack/models/MITgcmUV/pkg/monitor/mon_stats_rl.F,v 1.1 2001/05/30 19:33:18 adcroft Exp $
2 C $Name: $
3
4 #include "CPP_OPTIONS.h"
5
6 SUBROUTINE MON_STATS_RL(
7 I myNr, arr,
8 O theMin,theMax,theMean,theSD,
9 I myThid )
10 C /==========================================================\
11 C | SUBROUTINE MON_STATS_RL |
12 C | o Calculate bare statistics of global array "_RL arr" |
13 C |==========================================================|
14 C \==========================================================/
15 IMPLICIT NONE
16
17 C === Global data ===
18 #include "SIZE.h"
19 #include "EEPARAMS.h"
20
21 C === Routine arguments ===
22 INTEGER myNr
23 _RL arr(1-OLx:sNx+OLx,1-OLy:sNy+OLy,myNr,nSx,nSy)
24 _RL theMin
25 _RL theMax
26 _RL theMean
27 _RL theSD
28 INTEGER myThid
29
30 C === Local variables ====
31 INTEGER bi,bj,I,J,K
32 INTEGER numPnts
33 LOGICAL noPnts
34 _RL tmpVal,rNumPnts
35 _RL theVar
36
37 theMin=0.
38 theMax=0.
39 theMean=0.
40 theSD=0.
41 theVar=0.
42 numPnts=0
43 noPnts=.TRUE.
44
45 DO bj=myByLo(myThid),myByHi(myThid)
46 DO bi=myBxLo(myThid),myBxHi(myThid)
47 DO K=1,myNr
48 DO J=1,sNy
49 DO I=1,sNx
50 tmpVal=arr(I,J,K,bi,bj)
51 IF (tmpVal.NE.0. .AND. noPnts) THEN
52 theMin=tmpVal
53 theMax=tmpVal
54 noPnts=.FALSE.
55 ENDIF
56 IF (tmpVal.NE.0.) THEN
57 theMin=min(theMin,tmpVal)
58 theMax=max(theMax,tmpVal)
59 theMean=theMean+tmpVal
60 theVar=theVar+tmpVal**2
61 numPnts=numPnts+1
62 ENDIF
63 ENDDO
64 ENDDO
65 ENDDO
66 ENDDO
67 ENDDO
68
69 theMin=-theMin
70 _GLOBAL_MAX_R8(theMin,myThid)
71 theMin=-theMin
72 _GLOBAL_MAX_R8(theMax,myThid)
73 _GLOBAL_SUM_R8(theMean,myThid)
74 _GLOBAL_SUM_R8(theVar,myThid)
75 tmpVal=FLOAT(numPnts)
76 _GLOBAL_SUM_R8(tmpVal,myThid)
77 numPnts=INT(tmpVal+0.5)
78
79 IF (tmpVal.GT.0.) THEN
80 rNumPnts=1./tmpVal
81 theMean=theMean*rNumPnts
82 theVar=theVar*rNumPnts
83
84 DO bj=myByLo(myThid),myByHi(myThid)
85 DO bi=myBxLo(myThid),myBxHi(myThid)
86 DO K=1,myNr
87 DO J=1,sNy
88 DO I=1,sNx
89 tmpVal=arr(I,J,K,bi,bj)
90 IF (tmpVal.NE.0.) THEN
91 theSD=theSD+(tmpVal-theMean)**2
92 ENDIF
93 ENDDO
94 ENDDO
95 ENDDO
96 ENDDO
97 ENDDO
98
99 _GLOBAL_SUM_R8(theSD,myThid)
100
101 theSD=sqrt(theSD*rNumPnts)
102 c theSD=sqrt(theVar-theMean**2)
103 ENDIF
104
105 RETURN
106 END

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