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Revision 1.4 - (show annotations) (download)
Fri May 9 21:43:16 2008 UTC (15 years, 11 months ago) by jmc
Branch: MAIN
CVS Tags: 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, checkpoint63p, checkpoint63q, checkpoint63r, checkpoint63s, checkpoint63l, checkpoint63m, checkpoint63n, checkpoint63o, checkpoint63h, checkpoint63i, checkpoint63j, checkpoint63k, checkpoint63d, checkpoint63e, checkpoint63f, checkpoint63g, checkpoint63a, checkpoint63b, checkpoint63c, checkpoint64, checkpoint65, checkpoint60, checkpoint61, checkpoint62, checkpoint63, checkpoint66g, checkpoint66f, checkpoint66e, checkpoint66d, checkpoint66c, checkpoint66b, checkpoint66a, checkpoint66o, checkpoint66n, checkpoint66m, checkpoint66l, checkpoint66k, checkpoint66j, checkpoint66i, checkpoint66h, checkpoint65z, checkpoint65x, checkpoint65y, checkpoint65r, checkpoint65s, checkpoint65p, checkpoint65q, checkpoint65v, checkpoint65w, checkpoint65t, checkpoint65u, checkpoint65j, checkpoint65k, checkpoint65h, checkpoint65i, checkpoint65n, checkpoint65o, checkpoint65l, checkpoint65m, checkpoint65b, checkpoint65c, checkpoint65a, checkpoint65f, checkpoint65g, checkpoint65d, checkpoint65e, checkpoint59r, checkpoint62c, checkpoint62b, checkpoint62a, checkpoint62g, checkpoint62f, checkpoint62e, checkpoint62d, checkpoint62k, checkpoint62j, checkpoint62i, checkpoint62h, checkpoint62o, checkpoint62n, checkpoint62m, checkpoint62l, checkpoint62s, checkpoint62r, checkpoint62q, checkpoint62p, checkpoint62w, checkpoint62v, checkpoint62u, checkpoint62t, checkpoint62z, checkpoint62y, checkpoint62x, checkpoint61f, checkpoint61g, checkpoint61d, checkpoint61e, checkpoint61b, checkpoint61c, checkpoint61a, checkpoint61n, checkpoint61o, checkpoint61l, checkpoint61m, checkpoint61j, checkpoint61k, checkpoint61h, checkpoint61i, checkpoint61v, checkpoint61w, checkpoint61t, checkpoint61u, checkpoint61r, checkpoint61s, checkpoint61p, checkpoint61q, checkpoint61z, checkpoint61x, checkpoint61y, HEAD
Changes since 1.3: +1 -4 lines 
change option: GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
applies to files where Temperature & salinity 2nd Order moments are used
1 C $Header: /u/gcmpack/MITgcm/pkg/generic_advdiff/gad_som_lim_r.F,v 1.3 2007/08/22 00:26:01 jmc Exp $
2 C $Name: $
3
4 #include "GAD_OPTIONS.h"
5
6 CBOP
7 C !ROUTINE: GAD_SOM_LIM_R
8
9 C !INTERFACE: ==========================================================
10 SUBROUTINE GAD_SOM_LIM_R(
11 I bi,bj, limiter,
12 U sm_v, sm_o, sm_x, sm_y, sm_z,
13 U sm_xx, sm_yy, sm_zz, sm_xy, sm_xz, sm_yz,
14 I myThid )
15
16 C !DESCRIPTION:
17 C Apply limiter before calculating vertical advection
18 C Second-Order Moments Advection of tracer in Z-direction
19 C ref: M.J.Prather, 1986, JGR, 91, D6, pp 6671-6681.
20 C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
21
22 C !USES: ===============================================================
23 IMPLICIT NONE
24 #include "SIZE.h"
25 c #include "GRID.h"
26 #include "GAD.h"
27
28 C !INPUT PARAMETERS: ===================================================
29 C bi,bj :: tile indices
30 C limiter :: 0: no limiter ; 1: Prather, 1986 limiter
31 C myThid :: my Thread Id. number
32 INTEGER bi,bj
33 INTEGER limiter
34 c _RL tracer(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
35 INTEGER myThid
36
37 C !OUTPUT PARAMETERS: ==================================================
38 C sm_v :: volume of grid cell
39 C sm_o :: tracer content of grid cell (zero order moment)
40 C sm_x,y,z :: 1rst order moment of tracer distribution, in x,y,z direction
41 C sm_xx,yy,zz :: 2nd order moment of tracer distribution, in x,y,z direction
42 C sm_xy,xz,yz :: 2nd order moment of tracer distr., in cross direction xy,xz,yz
43 _RL sm_v (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
44 _RL sm_o (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
45 _RL sm_x (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
46 _RL sm_y (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
47 _RL sm_z (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
48 _RL sm_xx (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
49 _RL sm_yy (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
50 _RL sm_zz (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
51 _RL sm_xy (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
52 _RL sm_xz (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
53 _RL sm_yz (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
54
55 C !LOCAL VARIABLES: ====================================================
56 C i,j,k :: loop indices
57 _RL three
58 PARAMETER( three = 3. _d 0 )
59 INTEGER i,j,k
60 _RL slpmax, s1max, s1new, s2new
61 CEOP
62
63 IF ( limiter.EQ.1 ) THEN
64 DO k=1,Nr
65 DO j=jMinAdvR,jMaxAdvR
66 DO i=iMinAdvR,iMaxAdvR
67 C If flux-limiting transport is to be applied, place limits on
68 C appropriate moments before transport.
69 slpmax = 0.
70 IF ( sm_o(i,j,k).GT.0. ) slpmax = sm_o(i,j,k)
71 s1max = slpmax*1.5 _d 0
72 s1new = MIN( s1max, MAX(-s1max,sm_z(i,j,k)) )
73 s2new = MIN( (slpmax+slpmax-ABS(s1new)/three),
74 & MAX(ABS(s1new)-slpmax,sm_zz(i,j,k)) )
75 sm_xz(i,j,k) = MIN( slpmax, MAX(-slpmax,sm_xz(i,j,k)) )
76 sm_yz(i,j,k) = MIN( slpmax, MAX(-slpmax,sm_yz(i,j,k)) )
77 sm_z (i,j,k) = s1new
78 sm_zz(i,j,k) = s2new
79 ENDDO
80 ENDDO
81 ENDDO
82 ENDIF
83
84 RETURN
85 END
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