6 |
CBOP |
CBOP |
7 |
C !ROUTINE: GAD_U3C4_IMPL_R |
C !ROUTINE: GAD_U3C4_IMPL_R |
8 |
C !INTERFACE: |
C !INTERFACE: |
9 |
SUBROUTINE GAD_U3C4_IMPL_R( |
SUBROUTINE GAD_U3C4_IMPL_R( |
10 |
I bi,bj,k, iMin,iMax,jMin,jMax, |
I bi,bj,k, iMin,iMax,jMin,jMax, |
11 |
I advectionScheme, deltaTarg, rTrans, |
I advectionScheme, deltaTarg, rTrans, |
12 |
O a5d, b5d, c5d, d5d, e5d, |
O a5d, b5d, c5d, d5d, e5d, |
13 |
I myThid ) |
I myThid ) |
15 |
C !DESCRIPTION: |
C !DESCRIPTION: |
16 |
C Compute matrix element to solve vertical advection implicitly |
C Compute matrix element to solve vertical advection implicitly |
17 |
C using 3rd order upwind advection scheme, |
C using 3rd order upwind advection scheme, |
18 |
|
C or 3rd order Direct Space and Time advection scheme, |
19 |
C or 4th order Centered advection scheme. |
C or 4th order Centered advection scheme. |
20 |
C Method: |
C Method: |
21 |
C contribution of vertical transport at interface k is added |
C contribution of vertical transport at interface k is added |
40 |
C advectionScheme :: advection scheme to use |
C advectionScheme :: advection scheme to use |
41 |
C deltaTarg :: time step |
C deltaTarg :: time step |
42 |
C rTrans :: vertical volume transport |
C rTrans :: vertical volume transport |
|
C tFld :: tracer field |
|
43 |
C a5d :: 2nd lower diag of pentadiagonal matrix |
C a5d :: 2nd lower diag of pentadiagonal matrix |
44 |
C b5d :: 1rst lower diag of pentadiagonal matrix |
C b5d :: 1rst lower diag of pentadiagonal matrix |
45 |
C c5d :: main diag of pentadiagonal matrix |
C c5d :: main diag of pentadiagonal matrix |
64 |
C km2 :: =max( k-2 , 1 ) |
C km2 :: =max( k-2 , 1 ) |
65 |
C rCenter :: centered contribution |
C rCenter :: centered contribution |
66 |
C rUpwind :: upwind contribution |
C rUpwind :: upwind contribution |
67 |
|
C rC4km, rC4kp :: high order contribution |
68 |
|
C rHigh :: high order term factor |
69 |
LOGICAL flagC4 |
LOGICAL flagC4 |
70 |
INTEGER i,j,kp1,km2 |
INTEGER i,j,kp1,km2 |
71 |
_RL rCenter, rUpwind |
_RL wCFL, rCenter, rUpwind |
72 |
_RL rC4km, rC4kp, rU1k, rU3km, rU3kp |
_RL rC4km, rC4kp, rHigh |
73 |
_RL mskM, mskP, maskM2, maskP1 |
_RL mskM, mskP, maskM2, maskP1 |
74 |
|
_RL deltaTcfl |
75 |
CEOP |
CEOP |
76 |
|
|
77 |
C-- process interior interface only: |
C-- process interior interface only: |
79 |
|
|
80 |
km2=MAX(1,k-2) |
km2=MAX(1,k-2) |
81 |
kp1=MIN(Nr,k+1) |
kp1=MIN(Nr,k+1) |
82 |
maskP1 = 1. _d 0 |
maskP1 = 1. _d 0 |
83 |
maskM2 = 1. _d 0 |
maskM2 = 1. _d 0 |
84 |
IF ( k.LE.2 ) maskM2 = 0. _d 0 |
IF ( k.LE.2 ) maskM2 = 0. _d 0 |
85 |
IF ( k.GE.Nr) maskP1 = 0. _d 0 |
IF ( k.GE.Nr) maskP1 = 0. _d 0 |
86 |
flagC4 = advectionScheme.EQ.ENUM_CENTERED_4TH |
flagC4 = advectionScheme.EQ.ENUM_CENTERED_4TH |
87 |
& .AND. k.GT.2 .AND. k.LT.Nr |
& .AND. k.GT.2 .AND. k.LT.Nr |
88 |
|
|
89 |
C-- Add centered & upwind contributions |
C-- Add centered, upwind and high-order contributions |
90 |
|
deltaTcfl = deltaTarg(k) |
91 |
DO j=jMin,jMax |
DO j=jMin,jMax |
92 |
DO i=iMin,iMax |
DO i=iMin,iMax |
93 |
rCenter= 0.5 _d 0 *rTrans(i,j)*recip_rA(i,j,bi,bj)*rkSign |
rCenter= 0.5 _d 0 *rTrans(i,j)*recip_rA(i,j,bi,bj)*rkSign |
94 |
mskM = maskC(i,j,km2,bi,bj)*maskM2 |
mskM = maskC(i,j,km2,bi,bj)*maskM2 |
95 |
mskP = maskC(i,j,kp1,bi,bj)*maskP1 |
mskP = maskC(i,j,kp1,bi,bj)*maskP1 |
|
rC4km = oneSixth*rCenter*mskM |
|
|
rC4kp = oneSixth*rCenter*mskP |
|
96 |
IF ( flagC4 .AND. mskM*mskP.GT.0. _d 0 ) THEN |
IF ( flagC4 .AND. mskM*mskP.GT.0. _d 0 ) THEN |
97 |
rUpwind= 0. _d 0 |
rUpwind= 0. _d 0 |
98 |
rU3km = 0. _d 0 |
rC4km = oneSixth*rCenter*mskM |
99 |
rU3kp = 0. _d 0 |
rC4kp = oneSixth*rCenter*mskP |
100 |
|
ELSEIF ( advectionScheme.EQ.ENUM_DST3 ) THEN |
101 |
|
wCFL = deltaTcfl*ABS(rTrans(i,j)) |
102 |
|
& *recip_rA(i,j,bi,bj)*recip_drC(k) |
103 |
|
rHigh = (1. _d 0 -wCFL*wCFL)*oneSixth |
104 |
|
c rUpwind= (2. _d 0*rHigh - wCFL)*ABS(rCenter) |
105 |
|
rUpwind= (2. _d 0*rHigh )*ABS(rCenter) |
106 |
|
rC4km = rHigh * (rCenter+ABS(rCenter))*mskM |
107 |
|
rC4kp = rHigh * (rCenter-ABS(rCenter))*mskP |
108 |
ELSE |
ELSE |
109 |
rU1k = oneSixth*ABS(rCenter) |
rUpwind= 2. _d 0*oneSixth*ABS(rCenter) |
110 |
rUpwind= rU1k+rU1k |
rC4km = oneSixth*(rCenter+ABS(rCenter))*mskM |
111 |
rU3km = rU1k*mskM |
rC4kp = oneSixth*(rCenter-ABS(rCenter))*mskP |
|
rU3kp = rU1k*mskP |
|
112 |
ENDIF |
ENDIF |
113 |
a5d(i,j,k) = a5d(i,j,k) |
a5d(i,j,k) = a5d(i,j,k) |
114 |
& + (rC4km + rU3km) |
& + rC4km |
115 |
& *deltaTarg(k) |
& *deltaTarg(k) |
116 |
& *recip_hFacC(i,j,k,bi,bj)*recip_drF(k) |
& *recip_hFacC(i,j,k,bi,bj)*recip_drF(k) |
117 |
b5d(i,j,k) = b5d(i,j,k) |
b5d(i,j,k) = b5d(i,j,k) |
118 |
& - (rCenter + rC4km + rUpwind + rU3km) |
& - ( (rCenter+rUpwind) + rC4km ) |
119 |
& *deltaTarg(k) |
& *deltaTarg(k) |
120 |
& *recip_hFacC(i,j,k,bi,bj)*recip_drF(k) |
& *recip_hFacC(i,j,k,bi,bj)*recip_drF(k) |
121 |
c5d(i,j,k) = c5d(i,j,k) |
c5d(i,j,k) = c5d(i,j,k) |
122 |
& - (rCenter + rC4kp - rUpwind - rU3kp) |
& - ( (rCenter-rUpwind) + rC4kp ) |
123 |
& *deltaTarg(k) |
& *deltaTarg(k) |
124 |
& *recip_hFacC(i,j,k,bi,bj)*recip_drF(k) |
& *recip_hFacC(i,j,k,bi,bj)*recip_drF(k) |
125 |
d5d(i,j,k) = d5d(i,j,k) |
d5d(i,j,k) = d5d(i,j,k) |
126 |
& + (rC4kp - rU3kp) |
& + rC4kp |
127 |
& *deltaTarg(k) |
& *deltaTarg(k) |
128 |
& *recip_hFacC(i,j,k,bi,bj)*recip_drF(k) |
& *recip_hFacC(i,j,k,bi,bj)*recip_drF(k) |
129 |
b5d(i,j,k-1) = b5d(i,j,k-1) |
b5d(i,j,k-1) = b5d(i,j,k-1) |
130 |
& - (rC4km + rU3km) |
& - rC4km |
131 |
& *deltaTarg(k-1) |
& *deltaTarg(k-1) |
132 |
& *recip_hFacC(i,j,k-1,bi,bj)*recip_drF(k-1) |
& *recip_hFacC(i,j,k-1,bi,bj)*recip_drF(k-1) |
133 |
c5d(i,j,k-1) = c5d(i,j,k-1) |
c5d(i,j,k-1) = c5d(i,j,k-1) |
134 |
& + (rCenter + rC4km + rUpwind + rU3km) |
& + ( (rCenter+rUpwind) + rC4km ) |
135 |
& *deltaTarg(k-1) |
& *deltaTarg(k-1) |
136 |
& *recip_hFacC(i,j,k-1,bi,bj)*recip_drF(k-1) |
& *recip_hFacC(i,j,k-1,bi,bj)*recip_drF(k-1) |
137 |
d5d(i,j,k-1) = d5d(i,j,k-1) |
d5d(i,j,k-1) = d5d(i,j,k-1) |
138 |
& + (rCenter + rC4kp - rUpwind - rU3kp) |
& + ( (rCenter-rUpwind) + rC4kp ) |
139 |
& *deltaTarg(k-1) |
& *deltaTarg(k-1) |
140 |
& *recip_hFacC(i,j,k-1,bi,bj)*recip_drF(k-1) |
& *recip_hFacC(i,j,k-1,bi,bj)*recip_drF(k-1) |
141 |
e5d(i,j,k-1) = e5d(i,j,k-1) |
e5d(i,j,k-1) = e5d(i,j,k-1) |
142 |
& - (rC4kp - rU3kp) |
& - rC4kp |
143 |
& *deltaTarg(k-1) |
& *deltaTarg(k-1) |
144 |
& *recip_hFacC(i,j,k-1,bi,bj)*recip_drF(k-1) |
& *recip_hFacC(i,j,k-1,bi,bj)*recip_drF(k-1) |
145 |
ENDDO |
ENDDO |