/[MITgcm]/MITgcm/verification/advect_cs/code/ini_vel.F
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Contents of /MITgcm/verification/advect_cs/code/ini_vel.F

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Revision 1.3 - (show annotations) (download)
Tue Jan 8 17:35:55 2008 UTC (12 years, 10 months ago) by jmc
Branch: MAIN
CVS Tags: checkpoint65z, checkpoint65x, checkpoint65y, checkpoint65r, checkpoint65s, checkpoint65p, checkpoint65q, checkpoint65v, checkpoint65w, checkpoint65t, checkpoint65u, checkpoint65j, checkpoint65k, checkpoint65h, checkpoint65i, checkpoint65n, checkpoint65l, checkpoint65m, checkpoint65b, checkpoint65c, checkpoint65a, checkpoint65f, checkpoint65g, checkpoint65d, checkpoint65e, checkpoint62c, checkpoint62a, checkpoint62g, checkpoint62f, checkpoint62e, checkpoint62d, checkpoint62k, checkpoint62j, checkpoint62i, checkpoint62h, checkpoint62o, checkpoint62n, checkpoint62m, checkpoint62l, checkpoint62s, checkpoint62r, checkpoint62q, checkpoint62p, checkpoint62w, checkpoint62v, checkpoint62u, checkpoint62t, checkpoint62z, checkpoint62y, checkpoint62x, checkpoint64, checkpoint65, checkpoint60, checkpoint61, checkpoint62, checkpoint63, checkpoint66g, checkpoint66f, checkpoint66e, checkpoint66d, checkpoint66c, checkpoint66b, checkpoint66a, checkpoint66o, checkpoint66n, checkpoint66m, checkpoint66l, checkpoint66k, checkpoint66j, checkpoint66i, checkpoint66h, checkpoint63p, checkpoint63q, checkpoint63r, checkpoint63s, checkpoint63l, checkpoint63m, checkpoint63n, checkpoint63o, checkpoint63h, checkpoint63i, checkpoint63j, checkpoint63k, checkpoint63d, checkpoint63e, checkpoint63f, checkpoint63g, checkpoint63a, checkpoint63b, checkpoint63c, checkpoint65o, checkpoint59q, checkpoint59p, checkpoint59r, checkpoint59m, checkpoint59o, checkpoint59n, checkpoint62b, checkpoint64y, checkpoint64x, checkpoint64z, checkpoint64q, checkpoint64p, checkpoint64s, checkpoint64r, checkpoint64u, checkpoint64t, checkpoint64w, checkpoint64v, checkpoint64i, checkpoint64h, checkpoint64k, checkpoint64j, checkpoint64m, checkpoint64l, checkpoint64o, checkpoint64n, checkpoint64a, checkpoint64c, checkpoint64b, checkpoint64e, checkpoint64d, checkpoint64g, checkpoint64f, checkpoint61f, checkpoint61n, checkpoint61q, checkpoint61z, checkpoint61e, checkpoint61g, checkpoint61d, checkpoint61b, checkpoint61c, checkpoint61a, checkpoint61o, checkpoint61l, checkpoint61m, checkpoint61j, checkpoint61k, checkpoint61h, checkpoint61i, checkpoint61v, checkpoint61w, checkpoint61t, checkpoint61u, checkpoint61r, checkpoint61s, checkpoint61p, checkpoint61x, checkpoint61y, HEAD
Changes since 1.2: +30 -30 lines
bring this local version much closer to the standard version (in model/src)

1 C $Header: /u/gcmpack/MITgcm/model/src/ini_vel.F,v 1.7 2006/08/02 03:40:28 jmc Exp $
2 C $Name: $
3
4 #include "CPP_OPTIONS.h"
5
6 CBOP
7 C !ROUTINE: INI_VEL
8 C !INTERFACE:
9 SUBROUTINE INI_VEL( myThid )
10
11 C !DESCRIPTION: \bv
12 C *=================================================================
13 C | SUBROUTINE INI_VEL
14 C | o Initialize flow field (either to zero or from input files)
15 C *=================================================================
16 C \ev
17
18 C !USES:
19 IMPLICIT NONE
20 C === Global variables ===
21 #include "SIZE.h"
22 #include "EEPARAMS.h"
23 #include "PARAMS.h"
24 #include "GRID.h"
25 #include "DYNVARS.h"
26
27 C !INPUT/OUTPUT PARAMETERS:
28 C == Routine arguments ==
29 C myThid :: Number of this instance of INI_VEL
30 INTEGER myThid
31
32 C !LOCAL VARIABLES:
33 C == Local variables ==
34 C i,j,k :: Loop counters
35 C bi,bj :: tile indices
36 INTEGER bi,bj,i,j,k
37 INTEGER ip1,jp1
38 _RL psi,omegaprime,fac
39 CEOP
40
41 psi(i,j,bi,bj)=fac*fCoriG(i,j,bi,bj)
42
43 C-- Initialise velocity fields to zero
44 C
45 C If you want to specify an analytic initial state for the flow
46 C field then customize the following section of code.
47 C It is, however, often easier to generate initial conditions
48 C off-line and read them from input files...
49 C
50 omegaprime=38.60328935834681d0/rSphere
51 fac=-(rSphere**2)*omegaprime/(2.d0*Omega)
52 DO bj = myByLo(myThid), myByHi(myThid)
53 DO bi = myBxLo(myThid), myBxHi(myThid)
54 DO k=1,Nr
55 DO j=1-Oly,sNy+Oly
56 jp1=MIN(j+1,sNy+Oly)
57 DO i=1-Olx,sNx+Olx
58 ip1=MIN(i+1,sNx+Olx)
59 uVel(i,j,k,bi,bj)=0. _d 0
60 & +(psi(i,j,bi,bj)-psi(i,jp1,bi,bj))*recip_dyG(i,j,bi,bj)
61 vVel(i,j,k,bi,bj)=0. _d 0
62 & +(psi(ip1,j,bi,bj)-psi(i,j,bi,bj))*recip_dxG(i,j,bi,bj)
63 ENDDO
64 ENDDO
65 ENDDO
66 ENDDO
67 ENDDO
68
69 IF (uVelInitFile .NE. ' ' .OR. vVelInitFile .NE. ' ') THEN
70 _BARRIER
71 C Read an initial state for each component if required
72 IF (uVelInitFile .NE. ' ')
73 & CALL READ_FLD_XYZ_RL( uVelInitFile, ' ', uVel, 0, myThid )
74
75 IF (vVelInitFile .NE. ' ')
76 & CALL READ_FLD_XYZ_RL( vVelInitFile, ' ', vVel, 0, myThid )
77
78 CALL EXCH_UV_XYZ_RL(uVel,vVel,.TRUE.,myThid)
79 ENDIF
80
81 DO bj = myByLo(myThid), myByHi(myThid)
82 DO bi = myBxLo(myThid), myBxHi(myThid)
83 DO k=1,Nr
84 DO j=1-Oly,sNy+Oly
85 DO i=1-Olx,sNx+Olx
86 uVel(i,j,k,bi,bj)=uVel(i,j,k,bi,bj)*_maskW(i,j,k,bi,bj)
87 vVel(i,j,k,bi,bj)=vVel(i,j,k,bi,bj)*_maskS(i,j,k,bi,bj)
88 ENDDO
89 ENDDO
90 ENDDO
91 ENDDO
92 ENDDO
93
94 RETURN
95 END

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