1 |
C $Header: $ |
2 |
C $Name: $ |
3 |
|
4 |
#include "PACKAGES_CONFIG.h" |
5 |
#include "CPP_OPTIONS.h" |
6 |
|
7 |
CBOP |
8 |
C !ROUTINE: DIFFUSE_THETA |
9 |
C !INTERFACE: |
10 |
SUBROUTINE DIFFUSE_THETA(myTime, myIter, myThid) |
11 |
|
12 |
C !USES: |
13 |
IMPLICIT NONE |
14 |
C == Global variables === |
15 |
#include "SIZE.h" |
16 |
#include "EEPARAMS.h" |
17 |
#include "PARAMS.h" |
18 |
#include "DYNVARS.h" |
19 |
#include "GRID.h" |
20 |
#include "GAD.h" |
21 |
|
22 |
C !INPUT/OUTPUT PARAMETERS: |
23 |
C == Routine arguments == |
24 |
C myTime - Current time in simulation |
25 |
C myIter - Current iteration number in simulation |
26 |
C myThid - Thread number for this instance of the routine. |
27 |
_RL myTime |
28 |
INTEGER myIter |
29 |
INTEGER myThid |
30 |
|
31 |
C !LOCAL VARIABLES: |
32 |
C == Local variables |
33 |
C xA, yA - Per block temporaries holding face areas |
34 |
C uTrans, vTrans - Per block temporaries holding flow |
35 |
C transport |
36 |
C o uTrans: Zonal transport |
37 |
C o vTrans: Meridional transport |
38 |
C maskUp o maskUp: land/water mask for W points |
39 |
C fVer o fVer: Vertical flux term - note fVer |
40 |
C is "pipelined" in the vertical |
41 |
C so we need an fVer for each |
42 |
C variable. |
43 |
C iMin, iMax - Ranges and sub-block indices on which calculations |
44 |
C jMin, jMax are applied. |
45 |
C bi, bj |
46 |
C k, kup, - Index for layer above and below. kup and kDown |
47 |
C kDown, km1 are switched with layer to be the appropriate |
48 |
C index into fVerTerm. |
49 |
_RS xA (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
50 |
_RS yA (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
51 |
_RL uTrans (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
52 |
_RL vTrans (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
53 |
_RL rTrans (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
54 |
_RS maskUp (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
55 |
_RL fVer (1-OLx:sNx+OLx,1-OLy:sNy+OLy,2) |
56 |
INTEGER iMin, iMax |
57 |
INTEGER jMin, jMax |
58 |
INTEGER bi, bj |
59 |
INTEGER i, j |
60 |
INTEGER k, km1, kup, kDown |
61 |
|
62 |
_RL df (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
63 |
_RL localT(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
64 |
_RL fZon (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
65 |
_RL fMer (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
66 |
CEOP |
67 |
|
68 |
DO bj=myByLo(myThid),myByHi(myThid) |
69 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
70 |
DO j=1-OLy,sNy+OLy |
71 |
DO i=1-OLx,sNx+OLx |
72 |
xA(i,j) = 0. _d 0 |
73 |
yA(i,j) = 0. _d 0 |
74 |
uTrans(i,j) = 0. _d 0 |
75 |
vTrans(i,j) = 0. _d 0 |
76 |
rTrans (i,j) = 0. _d 0 |
77 |
fVer (i,j,1) = 0. _d 0 |
78 |
fVer (i,j,2) = 0. _d 0 |
79 |
ENDDO |
80 |
ENDDO |
81 |
|
82 |
DO k=1,Nr |
83 |
DO j=1-OLy,sNy+OLy |
84 |
DO i=1-OLx,sNx+OLx |
85 |
gT(i,j,k,bi,bj) = 0. _d 0 |
86 |
ENDDO |
87 |
ENDDO |
88 |
ENDDO |
89 |
|
90 |
DO k=Nr,1,-1 |
91 |
|
92 |
km1 = MAX(1,k-1) |
93 |
kup = 1+MOD(k+1,2) |
94 |
kDown= 1+MOD(k,2) |
95 |
|
96 |
iMin = 1-OLx |
97 |
iMax = sNx+OLx |
98 |
jMin = 1-OLy |
99 |
jMax = sNy+OLy |
100 |
C-- Get temporary terms used by tendency routines |
101 |
CALL CALC_COMMON_FACTORS ( |
102 |
I bi,bj,iMin,iMax,jMin,jMax,k, |
103 |
O xA,yA,uTrans,vTrans,rTrans,maskUp, |
104 |
I myThid) |
105 |
|
106 |
C-- Make local copy of tracer array |
107 |
DO j=1-OLy,sNy+OLy |
108 |
DO i=1-OLx,sNx+OLx |
109 |
localT(i,j) =theta(i,j,k,bi,bj) |
110 |
ENDDO |
111 |
ENDDO |
112 |
C-- Zero out work arrays |
113 |
DO j=1-OLy,sNy+OLy |
114 |
DO i=1-OLx,sNx+OLx |
115 |
fZon(i,j) = 0. _d 0 |
116 |
fMer(i,j) = 0. _d 0 |
117 |
df(i,j) = 0. _d 0 |
118 |
ENDDO |
119 |
ENDDO |
120 |
|
121 |
C-- Diffusive fluxes |
122 |
CALL GAD_DIFF_X(bi,bj,k,xA,diffKhT,localT,df,myThid) |
123 |
DO j=1-Oly,sNy+Oly |
124 |
DO i=1-Olx,sNx+Olx |
125 |
fZon(i,j) = fZon(i,j) + df(i,j) |
126 |
ENDDO |
127 |
ENDDO |
128 |
CALL GAD_DIFF_Y(bi,bj,k,yA,diffKhT,localT,df,myThid) |
129 |
DO j=1-Oly,sNy+Oly |
130 |
DO i=1-Olx,sNx+Olx |
131 |
fMer(i,j) = fMer(i,j) + df(i,j) |
132 |
ENDDO |
133 |
ENDDO |
134 |
|
135 |
C-- Divergence of fluxes |
136 |
DO j=1-Oly,sNy+Oly-1 |
137 |
DO i=1-Olx,sNx+Olx-1 |
138 |
gT(i,j,k,bi,bj)=gT(i,j,k,bi,bj) |
139 |
& -_recip_hFacC(i,j,k,bi,bj)*recip_drF(k)*recip_rA(i,j,bi,bj) |
140 |
& *( (fZon(i+1,j)-fZon(i,j)) |
141 |
& +(fMer(i,j+1)-fMer(i,j)) |
142 |
& +(fVer(i,j,kUp)-fVer(i,j,kDown))*rkFac |
143 |
& ) |
144 |
|
145 |
ENDDO |
146 |
ENDDO |
147 |
|
148 |
C-- Step field forward |
149 |
CALL ADAMS_BASHFORTH2( |
150 |
I bi, bj, K, |
151 |
U gT, gTnm1, |
152 |
I myIter, myThid ) |
153 |
CALL TIMESTEP_TRACER( |
154 |
I bi,bj,iMin,iMax,jMin,jMax,k,tempAdvScheme, |
155 |
I theta, gT, |
156 |
I myIter, myThid) |
157 |
|
158 |
ENDDO |
159 |
ENDDO |
160 |
ENDDO |
161 |
|
162 |
C-- Update halo regions |
163 |
_EXCH_XYZ_R8( gTNM1 , myThid ) |
164 |
_EXCH_XYZ_R8( gT , myThid ) |
165 |
|
166 |
C-- Cycle timestepping arrays |
167 |
DO bj=myByLo(myThid),myByHi(myThid) |
168 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
169 |
DO k=1,Nr |
170 |
DO j=1-OLy,sNy+OLy |
171 |
DO i=1-OLx,sNx+OLx |
172 |
theta(i,j,k,bi,bj)=gT(i,j,k,bi,bj) |
173 |
ENDDO |
174 |
ENDDO |
175 |
ENDDO |
176 |
ENDDO |
177 |
ENDDO |
178 |
|
179 |
CALL PLOT_FIELD_XYZRL( theta, 'Theta after diffuse' , |
180 |
& Nr, myIter, myThid ) |
181 |
|
182 |
RETURN |
183 |
END |