/[MITgcm]/MITgcm/model/src/update_etah.F
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Annotation of /MITgcm/model/src/update_etah.F

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Revision 1.3 - (hide annotations) (download)
Thu Oct 9 04:19:18 2003 UTC (20 years, 7 months ago) by edhill
Branch: MAIN
CVS Tags: checkpoint51k_post, checkpoint52l_pre, hrcube4, hrcube5, checkpoint52d_pre, checkpoint52j_pre, checkpoint51o_pre, checkpoint51l_post, checkpoint52k_post, checkpoint53, checkpoint52, checkpoint52f_post, checkpoint51t_post, checkpoint51n_post, checkpoint52i_pre, hrcube_1, hrcube_2, hrcube_3, checkpoint51s_post, checkpoint52e_pre, checkpoint52e_post, checkpoint51n_pre, checkpoint53d_post, checkpoint52b_pre, checkpoint51l_pre, checkpoint52m_post, checkpoint51q_post, checkpoint52b_post, checkpoint52c_post, checkpoint52f_pre, checkpoint53c_post, checkpoint51r_post, checkpoint51i_post, checkpoint53a_post, checkpoint52d_post, checkpoint52a_pre, checkpoint52i_post, checkpoint52h_pre, checkpoint53f_post, checkpoint52j_post, branch-netcdf, checkpoint52l_post, checkpoint52n_post, checkpoint53b_pre, checkpoint51o_post, checkpoint53b_post, checkpoint52a_post, ecco_c52_e35, checkpoint51m_post, checkpoint53d_pre, checkpoint51p_post, checkpoint51u_post
Branch point for: branch-nonh, tg2-branch, netcdf-sm0, checkpoint51n_branch
Changes since 1.2: +2 -1 lines 
 o first check-in for the "branch-genmake2" merge
 o verification suite as run on shelley (gcc 3.2.2):

Wed Oct  8 23:42:29 EDT 2003
                T           S           U           V
G D M    c        m  s        m  s        m  s        m  s
E p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
N n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2 d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .

OPTFILE=NONE

Y Y Y Y 13 16 16 16  0 16 16 16 16 16 16 16 16 13 12  0  0 pass  adjustment.128x64x1
Y Y Y Y 16 16 16 16  0 16 16 16 16 16 16  0  0 16 16  0  0 pass  adjustment.cs-32x32x1
Y Y Y Y 16 16 16 16  0 16 16 16 16 16 16 22  0 16 16 22  0 pass  adjust_nlfs.cs-32x32x1
Y Y Y Y -- 13 13 16 16 13 13 13 13 16 16 16 16 16 16 16 16 N/O   advect_cs
Y Y Y Y -- 22 16 16 16 16 16 16 13 16 16 16 16 16 16 16 16 N/O   advect_xy
Y Y Y Y -- 13 16 13 16 16 16 16 16 16 16 22 16 16 16 16 16 N/O   advect_xz
Y Y Y Y 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 pass  aim.5l_cs
Y Y Y Y 14 16 16 16 16 16 16 16 16 13 16 16 16 16 16 13 16 pass  aim.5l_Equatorial_Channel
Y Y Y Y 16 16 16 16 16 16 16 16 16 16 16 13 16 16 13 13 16 pass  aim.5l_LatLon
Y Y Y Y 13 16 16 16 16 16 16 16 16 16 13 12 13 13 16 13 16 pass  exp0
Y Y Y Y 14 16 16 16 16 16 16 16 22 16 16 16 13 16 16 22 16 pass  exp1
Y Y Y Y 13 13 16 13 16 16 16 16 16 13 13 16 16 13 13 13 13 pass  exp2
Y Y Y Y 16 16 16 16 16 16 16 16 22 16 16 16 16 16 16 16 16 pass  exp4
Y Y Y Y 16 16 16 16 16 16 16 16 16 16 16 22 16 16 16 22 16 pass  exp5
Y Y Y Y 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 pass  front_relax
Y Y Y Y 14 16 16 13 13 16 16 13 13 16 13 13 16 12 13 13 16 pass  global_ocean.90x40x15
Y Y Y Y 10 16 16 13 13 16 13 16 16 13 13 13 13 16 16 13 16 FAIL  global_ocean.cs32x15
Y Y Y Y  6 11 12 13 13 12 13 16 13  9  9  9  9 10  9  9 11 FAIL  global_ocean_pressure
Y Y Y Y 14 16 16 13 16 16 16 13 13 13 13 13 16 12 16 13 16 pass  global_with_exf
Y Y Y Y 14 16 16 16 16 16 16 16 16 11 13 22 13 16 16  9 16 pass  hs94.128x64x5
Y Y Y Y 13 16 16 16 16 16 16 16 16 11 16 16 16 13 16 22 13 pass  hs94.1x64x5
Y Y Y Y 14 16 16 16 16 16 16 16 16 13 16 13 13 16 16 22 13 pass  hs94.cs-32x32x5
Y Y Y Y 10 10 16 13 13 16 16 16 22 16 13 13 13 13 13 22 13 FAIL  ideal_2D_oce
Y Y Y Y  8 16 16 16 16 16 16 16 16 13 13  8 16 16 16 16 16 FAIL  internal_wave
Y Y Y Y 14 16 16 16 16 16 16 16 16 13 13 22 13 13 13 22 16 pass  inverted_barometer
Y Y Y Y 12 16 16 16 16 16 16 16 16 16 13 12 13 13 13 13 13 FAIL  lab_sea
Y Y Y Y 11 16 16 16 16 16 16 16 13 13 13 12 13 16 13 12 13 FAIL  natl_box
Y Y Y Y 16 16 16 16 16 16 16 16 22 16 16 16 16 16 16 16 16 pass  plume_on_slope
Y Y Y Y 13 16 16 16 16 13 16 16 16 16 16 16 16 13 16 16 16 pass  solid-body.cs-32x32x1
1 edhill 1.3 C $Header: /u/u3/gcmpack/MITgcm/model/src/update_etah.F,v 1.2.6.1 2003/10/02 18:10:45 edhill Exp $
2 jmc 1.1 C $Name: $
3    
4 edhill 1.3 #include "PACKAGES_CONFIG.h"
5 jmc 1.1 #include "CPP_OPTIONS.h"
6    
7     CBOP
8     C !ROUTINE: UPDATE_ETAH
9     C !INTERFACE:
10     SUBROUTINE UPDATE_ETAH( myTime, myIter, myThid )
11     C !DESCRIPTION: \bv
12     C *==========================================================*
13     C | SUBROUTINE UPDATE_ETAH
14     C | o Update etaH at the begining of the time step.
15     C | (required with NLFS to derive surface layer thickness)
16     C *==========================================================*
17     C \ev
18    
19     C !USES:
20     IMPLICIT NONE
21     C == Global variables
22     #include "SIZE.h"
23     #include "EEPARAMS.h"
24     #include "PARAMS.h"
25     #include "DYNVARS.h"
26     #include "GRID.h"
27     #include "SURFACE.h"
28     #include "FFIELDS.h"
29    
30     C !INPUT/OUTPUT PARAMETERS:
31     C == Routine arguments ==
32     C myTime :: Current time in simulation
33     C myIter :: Current iteration number in simulation
34     C myThid :: Thread number for this instance of the routine.
35     _RL myTime
36     INTEGER myIter
37     INTEGER myThid
38    
39     C !LOCAL VARIABLES:
40     #ifdef EXACT_CONSERV
41     C Local variables in common block
42    
43     C Local variables
44     C i,j,k,bi,bj :: Loop counters
45     INTEGER i,j,k,bi,bj
46     CEOP
47    
48    
49     DO bj=myByLo(myThid),myByHi(myThid)
50     DO bi=myBxLo(myThid),myBxHi(myThid)
51     C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
52    
53     #ifdef NONLIN_FRSURF
54 jmc 1.2 c IF (useRealFreshWaterFlux .AND. nonlinFreeSurf.GT.0) THEN
55     IF ( (nonlinFreeSurf.GT.0 .OR. buoyancyRelation.EQ.'OCEANICP')
56     & .AND. useRealFreshWaterFlux ) THEN
57 jmc 1.1
58     C-- Called at the beginning of the time step :
59     C- keep present time EmPmR to compute later (S/R EXTERNAL_FORCING_SURF)
60     C tracers and momentum flux associated with fresh water input.
61    
62     IF ( myTime.NE.startTime ) THEN
63     DO j=1-Oly,sNy+Oly
64     DO i=1-Olx,sNx+Olx
65     PmEpR(i,j,bi,bj) = -EmPmR(i,j,bi,bj)
66     ENDDO
67     ENDDO
68    
69 jmc 1.2 ELSE
70 jmc 1.1 DO j=1-Oly,sNy+Oly
71     DO i=1-Olx,sNx+Olx
72     PmEpR(i,j,bi,bj) = 0. _d 0
73     ENDDO
74     ENDDO
75    
76 jmc 1.2 IF( myTime .NE. 0. _d 0 .AND. nonlinFreeSurf.GE.0 ) THEN
77 jmc 1.1 C needs previous time-step value of E-P-R, that has not been loaded
78     C and was not in pickup-file ; try to use etaN & etaH instead.
79     DO j=1,sNy
80     DO i=1,sNx
81     PmEpR(i,j,bi,bj) =
82     & hDivFlow(i,j,bi,bj)*recip_rA(i,j,bi,bj)
83     & + (etaN(i,j,bi,bj)-etaH(i,j,bi,bj))
84     & /(implicDiv2Dflow*deltaTfreesurf)
85 jmc 1.2 PmEpR(i,j,bi,bj) = PmEpR(i,j,bi,bj)/convertEmP2rUnit
86 jmc 1.1 ENDDO
87     ENDDO
88 jmc 1.2 ENDIF
89 jmc 1.1 ENDIF
90    
91     ENDIF
92     #endif /* NONLIN_FRSURF */
93    
94     C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
95    
96     C-- Update etaH at the beginning of the time step :
97     C Incorporate the Explicit part of -Divergence(Barotropic_Flow)
98    
99     IF ( useRealFreshWaterFlux .AND. myTime.EQ.startTime ) THEN
100     C needs previous time-step value of E-P-R, that has not been loaded
101     C and was not in pickup-file ; try to use etaN & etaH instead.
102     DO j=1-Oly,sNy+Oly
103     DO i=1-Olx,sNx+Olx
104     etaH(i,j,bi,bj) = etaN(i,j,bi,bj)
105     & + (etaN(i,j,bi,bj)-etaH(i,j,bi,bj))
106     & *(1. - implicDiv2Dflow)/implicDiv2Dflow
107     ENDDO
108     ENDDO
109    
110     ELSEIF (implicDiv2Dflow.EQ. 1. _d 0) THEN
111     DO j=1-Oly,sNy+Oly
112     DO i=1-Olx,sNx+Olx
113     etaH(i,j,bi,bj) = etaN(i,j,bi,bj)
114     ENDDO
115     ENDDO
116    
117     ELSEIF (useRealFreshWaterFlux) THEN
118     DO j=1,sNy
119     DO i=1,sNx
120     etaH(i,j,bi,bj) = etaN(i,j,bi,bj)
121     & - (1. - implicDiv2Dflow)*( convertEmP2rUnit*EmPmR(i,j,bi,bj)
122     & +hDivFlow(i,j,bi,bj)*recip_rA(i,j,bi,bj)
123     & )*deltaTfreesurf
124     ENDDO
125     ENDDO
126    
127     ELSE
128     DO j=1,sNy
129     DO i=1,sNx
130     etaH(i,j,bi,bj) = etaN(i,j,bi,bj)
131     & - (1. - implicDiv2Dflow)*hDivFlow(i,j,bi,bj)
132     & *recip_rA(i,j,bi,bj)*deltaTfreesurf
133     ENDDO
134     ENDDO
135     ENDIF
136    
137     #ifdef ALLOW_OBCS
138     #ifdef NONLIN_FRSURF
139     C- note: 1) needs to apply OBC to etaH since viscous terms depend on hFacZ.
140     C that is not only function of boundaries hFac values.
141     C 2) has to be done before calc_surf_dr; but since obcs_calc is
142     C called later, hFacZ will lag 1 time step behind OBC update.
143     C 3) avoid also unrealistic value of etaH in OB regions that
144     C might produce many "WARNING" message from calc_surf_dr.
145     C-------
146     IF ( useOBCS .AND. nonlinFreeSurf.GT.0 )
147     & CALL OBCS_APPLY_ETA( bi, bj, etaH, myThid )
148     #endif /* NONLIN_FRSURF */
149     #endif /* ALLOW_OBCS */
150    
151     C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
152    
153     C- end bi,bj loop.
154     ENDDO
155     ENDDO
156    
157     IF (implicDiv2Dflow .NE. 1. _d 0 .OR. useOBCS )
158 jmc 1.2 & _EXCH_XY_RL(etaH, myThid )
159 jmc 1.1
160     #endif /* EXACT_CONSERV */
161 jmc 1.2
162     #ifdef NONLIN_FRSURF
163     IF ( buoyancyRelation.EQ.'OCEANICP'
164     & .AND. useRealFreshWaterFlux
165     & .AND. myTime.EQ.startTime ) THEN
166     _EXCH_XY_RS(PmEpR, myThid )
167     ENDIF
168     #endif /* NONLIN_FRSURF */
169 jmc 1.1
170     RETURN
171     END
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