/[MITgcm]/MITgcm/pkg/thsice/thsice_ini_vars.F
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Contents of /MITgcm/pkg/thsice/thsice_ini_vars.F

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Revision 1.18 - (show annotations) (download)
Tue Apr 28 18:21:18 2009 UTC (15 years ago) by jmc
Branch: MAIN
CVS Tags: checkpoint61n, checkpoint61o, checkpoint61m, checkpoint61t, checkpoint61u, checkpoint61r, checkpoint61s, checkpoint61p, checkpoint61q
Changes since 1.17: +10 -10 lines
change macros (EXCH & GLOBAL_SUM/MAX) sufix _R4/_R8 to _RS/_RL
 when applied to _RS/_RL variable

1 C $Header: /u/gcmpack/MITgcm/pkg/thsice/thsice_ini_vars.F,v 1.17 2008/05/24 22:43:14 jmc Exp $
2 C $Name: $
3
4 #include "THSICE_OPTIONS.h"
5 #ifdef ALLOW_AIM
6 # include "AIM_OPTIONS.h"
7 #endif
8
9 CBOP
10 C !ROUTINE: THSICE_INI_VARS
11 C !INTERFACE:
12 SUBROUTINE THSICE_INI_VARS( myThid )
13
14 C !DESCRIPTION: \bv
15 C *==========================================================*
16 C | S/R THSICE_INI_VARS
17 C | o initialize THermo_SeaICE variables
18 C *==========================================================*
19 C \ev
20
21 C !USES:
22 IMPLICIT NONE
23
24 C === Global variables ===
25 #include "SIZE.h"
26 #include "EEPARAMS.h"
27 #include "PARAMS.h"
28 #include "FFIELDS.h"
29 #include "THSICE_PARAMS.h"
30 #include "THSICE_VARS.h"
31 #ifdef ALLOW_AIM
32 # include "AIM_FFIELDS.h"
33 #endif
34
35 C !INPUT/OUTPUT PARAMETERS:
36 C == Routine arguments ==
37 C myThid :: My Thread Id. number
38 INTEGER myThid
39 CEOP
40
41 #ifdef ALLOW_THSICE
42 C == Local variables ==
43 C bi,bj :: Loop counters
44 C i,j :: Loop counters
45 INTEGER bi, bj
46 INTEGER i, j
47 INTEGER prec
48 c CHARACTER*(MAX_LEN_FNAM) fn
49 _RL v2Loc
50 _RL Tf
51
52 c set up ice arrays to zero if starting ice
53 DO bj = myByLo(myThid), myByHi(myThid)
54 DO bi = myBxLo(myThid), myBxHi(myThid)
55 C- state variables :
56 DO j=1-OLy,sNy+OLy
57 DO i=1-OLx,sNx+OLx
58 iceMask(i,j,bi,bj) = 0. _d 0
59 iceHeight(i,j,bi,bj)= 0. _d 0
60 snowHeight(i,j,bi,bj)=0. _d 0
61 Tsrf(i,j,bi,bj) = 0. _d 0
62 Tice1(i,j,bi,bj) = 0. _d 0
63 Tice2(i,j,bi,bj) = 0. _d 0
64 Qice1(i,j,bi,bj) = 0. _d 0
65 Qice2(i,j,bi,bj) = 0. _d 0
66 snowAge(i,j,bi,bj) = 0. _d 0
67 ENDDO
68 ENDDO
69 C- fluxes :
70 DO j=1-OLy,sNy+OLy
71 DO i=1-OLx,sNx+OLx
72 sHeating(i,j,bi,bj) = 0. _d 0
73 flxCndBt(i,j,bi,bj) = 0. _d 0
74 snowPrc(i,j,bi,bj) = 0. _d 0
75 siceAlb(i,j,bi,bj) = 0. _d 0
76 icFlxSW (i,j,bi,bj) = 0. _d 0
77 icFlxAtm(i,j,bi,bj) = 0. _d 0
78 icFrwAtm(i,j,bi,bj) = 0. _d 0
79 C- needed when using advection/diffusion:
80 oceFWfx(i,j,bi,bj) = 0. _d 0
81 oceSflx(i,j,bi,bj) = 0. _d 0
82 oceQnet(i,j,bi,bj) = 0. _d 0
83 ENDDO
84 ENDDO
85 C- oceanic mixed layer state :
86 v2Loc = vMxL_default*vMxL_default
87 DO j=1-OLy,sNy+OLy
88 DO i=1-OLx,sNx+OLx
89 hOceMxL(i,j,bi,bj) = hMxL_default
90 tOceMxL(i,j,bi,bj) = 0. _d 0
91 sOceMxL(i,j,bi,bj) = sMxL_default
92 v2ocMxL(i,j,bi,bj) = v2Loc
93 ENDDO
94 ENDDO
95 #ifdef ALLOW_AIM
96 IF ( useAIM ) THEN
97 C- Mask mixed layer depth : depth is used in thsice slab_ocean
98 C and this mask is used in thsice_advdiff and if coupled
99 DO j=1-OLy,sNy+OLy
100 DO i=1-OLx,sNx+OLx
101 IF ( aim_landFr(i,j,bi,bj).EQ.1. _d 0 )
102 & hOceMxL(i,j,bi,bj) = 0.
103 ENDDO
104 ENDDO
105 ENDIF
106 #endif /* ALLOW_AIM */
107 ENDDO
108 ENDDO
109
110 C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
111
112 IF ( startIceModel.LE.0 .AND. nIter0.NE.0 ) THEN
113 C-- Read ice pickup fields
114 _BARRIER
115 prec=precFloat64
116 CALL THSICE_READ_PICKUP( prec, nIter0, myThid )
117
118 ELSE
119 C-- Read initial conditions:
120 _BARRIER
121 IF ( thSIceFract_InitFile .NE. ' ' ) THEN
122 CALL READ_REC_XY_RL(thSIceFract_InitFile,iceMask,1,0,myThid)
123 ENDIF
124 IF ( thSIceThick_InitFile .NE. ' ' ) THEN
125 CALL READ_REC_XY_RL(thSIceThick_InitFile,iceHeight,1,0,myThid)
126 ENDIF
127 IF ( thSIceSnowH_InitFile .NE. ' ' ) THEN
128 CALL READ_REC_XY_RL(thSIceSnowH_InitFile,snowHeight,1,0,myThid)
129 ENDIF
130 IF ( thSIceSnowA_InitFile .NE. ' ' ) THEN
131 CALL READ_REC_XY_RL(thSIceSnowA_InitFile,snowAge,1,0,myThid)
132 ENDIF
133 IF ( thSIceEnthp_InitFile .NE. ' ' ) THEN
134 CALL READ_REC_XY_RL(thSIceEnthp_InitFile,Qice1,1,0,myThid)
135 CALL READ_REC_XY_RL(thSIceEnthp_InitFile,Qice2,2,0,myThid)
136 ENDIF
137 IF ( thSIceTsurf_InitFile .NE. ' ' ) THEN
138 CALL READ_REC_XY_RS(thSIceTsurf_InitFile,Tsrf,1,0,myThid)
139 ENDIF
140 IF ( thSIceEnthp_InitFile .EQ. ' ' ) THEN
141 _BARRIER
142 C- enthalpy of new ice in J/kg, taken from thsice_extend.F with Tf beeing
143 C the freezing Temp of seawater computed from a fixed salinity (31.5 psu)
144 C Tf = -mu_Tf*salinity = -1.70 deg C; Qice1 ~ 3.2e5; Qice2 ~ 3.4e5
145 Tf = -1.70 _d 0
146 DO bj = myByLo(myThid), myByHi(myThid)
147 DO bi = myBxLo(myThid), myBxHi(myThid)
148 DO j=1-OLy,sNy+OLy
149 DO i=1-OLx,sNx+OLx
150 IF (iceMask(i,j,bi,bj) .NE. 0. _d 0) THEN
151 Qice1(i,j,bi,bj) = -cpWater*Tmlt1
152 & + cpIce *(Tmlt1-Tf) + Lfresh*(1. _d 0-Tmlt1/Tf)
153 Qice2(i,j,bi,bj) = -cpIce *Tf + Lfresh
154 ENDIF
155 ENDDO
156 ENDDO
157 ENDDO
158 ENDDO
159 ENDIF
160 ENDIF
161
162 _EXCH_XY_RL(iceMask,myThid)
163 _EXCH_XY_RL(iceHeight, myThid)
164 _EXCH_XY_RL(snowHeight,myThid)
165 _EXCH_XY_RL(Tsrf, myThid)
166 _EXCH_XY_RL(Tice1, myThid)
167 _EXCH_XY_RL(Tice2, myThid)
168 _EXCH_XY_RL(Qice1, myThid)
169 _EXCH_XY_RL(Qice2, myThid)
170 _EXCH_XY_RL(snowAge,myThid)
171
172 C-- Initialise Sea-Ice Loading for SeaIce-Dynamics :
173 IF ( useSEAICE ) THEN
174 DO bj = myByLo(myThid), myByHi(myThid)
175 DO bi = myBxLo(myThid), myBxHi(myThid)
176 DO j=1-OLy,sNy+OLy
177 DO i=1-OLx,sNx+OLx
178 sIceLoad(i,j,bi,bj) = ( snowHeight(i,j,bi,bj)*rhos
179 & + iceHeight(i,j,bi,bj)*rhoi
180 & )*iceMask(i,j,bi,bj)
181 ENDDO
182 ENDDO
183 ENDDO
184 ENDDO
185 ENDIF
186
187 #endif /* ALLOW_THSICE */
188
189 RETURN
190 END

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