1 |
jmc |
1.1 |
C $Header: $ |
2 |
|
|
C $Name: $ |
3 |
|
|
|
4 |
|
|
#include "AIM_OPTIONS.h" |
5 |
|
|
#ifdef ALLOW_LAND |
6 |
|
|
#include "LAND_OPTIONS.h" |
7 |
|
|
#endif |
8 |
|
|
|
9 |
|
|
CBOP |
10 |
|
|
C !ROUTINE: AIM_LAND_IMPL |
11 |
|
|
C !INTERFACE: |
12 |
|
|
SUBROUTINE AIM_LAND_IMPL( |
13 |
|
|
I FMASK, |
14 |
|
|
I dTskin, sFlx, |
15 |
|
|
I Evp0, dEvp, Slr0, dSlr, |
16 |
|
|
U Tsurf, EVAP, SLRU, |
17 |
|
|
I bi, bj, myTime, myIter, myThid) |
18 |
|
|
|
19 |
|
|
C !DESCRIPTION: \bv |
20 |
|
|
C *==========================================================* |
21 |
|
|
C | S/R AIM_LAND_IMPL |
22 |
|
|
C | o AIM Interface to the implicit part of the land model |
23 |
|
|
C *==========================================================* |
24 |
|
|
C \ev |
25 |
|
|
|
26 |
|
|
C !USES: |
27 |
|
|
IMPLICIT NONE |
28 |
|
|
|
29 |
|
|
C == Global variables === |
30 |
|
|
C-- size for MITgcm & Physics package : |
31 |
|
|
#include "AIM_SIZE.h" |
32 |
|
|
|
33 |
|
|
#include "EEPARAMS.h" |
34 |
|
|
#include "PARAMS.h" |
35 |
|
|
|
36 |
|
|
#include "AIM_FFIELDS.h" |
37 |
|
|
#include "com_physcon.h" |
38 |
|
|
c #include "com_physvar.h" |
39 |
|
|
|
40 |
|
|
#ifdef ALLOW_LAND |
41 |
|
|
#include "LAND_SIZE.h" |
42 |
|
|
#include "LAND_PARAMS.h" |
43 |
|
|
#include "LAND_VARS.h" |
44 |
|
|
#endif |
45 |
|
|
|
46 |
|
|
C !INPUT/OUTPUT PARAMETERS: |
47 |
|
|
C == Routine arguments == |
48 |
|
|
C FMASK :: land fraction [0-1] |
49 |
|
|
C dTskin :: temp. correction for daily-cycle heating [K] |
50 |
|
|
C sFlx :: net surface flux (+=down) function of surf. temp Ts: |
51 |
|
|
C 0: Flux(Ts=0.oC) ; 1: Flux(Ts^n) ; 2: d.Flux/d.Ts(Ts^n) |
52 |
|
|
C Evp0 :: evaporation computed over freezing surface (Ts=0.oC) |
53 |
|
|
C dEvp :: evaporation derivative relative to surf. temp |
54 |
|
|
C Slr0 :: upward long wave radiation over freezing surf. |
55 |
|
|
C Tsurf :: surface temperature (2-dim) |
56 |
|
|
C EVAP :: evaporation [g/(m^2 s)] (2-dim) |
57 |
|
|
C SLRU :: sfc lw radiation (upward flux) (2-dim) |
58 |
|
|
C bi,bj :: Tile index |
59 |
|
|
C myTime :: Current time of simulation ( s ) |
60 |
|
|
C myIter :: Current iteration number in simulation |
61 |
|
|
C myThid :: Number of this instance of the routine |
62 |
|
|
_RL FMASK(NGP), dTskin(NGP), sFlx(NGP,0:2) |
63 |
|
|
_RL Evp0(NGP), dEvp(NGP), Slr0(NGP), dSlr(NGP) |
64 |
|
|
_RL Tsurf(NGP), EVAP(NGP), SLRU(NGP) |
65 |
|
|
INTEGER bi, bj, myIter, myThid |
66 |
|
|
_RL myTime |
67 |
|
|
CEOP |
68 |
|
|
|
69 |
|
|
#ifdef ALLOW_AIM |
70 |
|
|
#ifdef ALLOW_LAND |
71 |
|
|
C == Local variables == |
72 |
|
|
C i,j, I2 :: loop counters |
73 |
|
|
C dTsurf :: surf. temp change after 1 implicit time step [oC] |
74 |
|
|
_RL dTsurf(NGP) |
75 |
|
|
INTEGER i,j, I2 |
76 |
|
|
|
77 |
|
|
C-- Physics tendency term |
78 |
|
|
|
79 |
|
|
IF ( land_impl_grT ) THEN |
80 |
|
|
|
81 |
|
|
DO j=1,sNy |
82 |
|
|
DO i=1,sNx |
83 |
|
|
I2 = i+(j-1)*sNx |
84 |
|
|
|
85 |
|
|
C- total surface downward heat flux : |
86 |
|
|
land_HeatFLx(i,j,bi,bj) = sFlx(I2,1) |
87 |
|
|
|
88 |
|
|
C- initialize temp. changes and fresh water flux : |
89 |
|
|
dTsurf(I2) = 0. |
90 |
|
|
land_Pr_m_Ev(i,j,bi,bj) = 0. _d 0 |
91 |
|
|
|
92 |
|
|
ENDDO |
93 |
|
|
ENDDO |
94 |
|
|
|
95 |
|
|
CALL LAND_IMPL_TEMP( |
96 |
|
|
I aim_landFr, |
97 |
|
|
I dTskin, sFlx, |
98 |
|
|
O dTsurf, |
99 |
|
|
I bi, bj, myTime, myIter, myThid) |
100 |
|
|
|
101 |
|
|
C- Update Surf.Temp., Evap, Upward SW according to surf. temp. changes |
102 |
|
|
DO J=1,NGP |
103 |
|
|
IF ( dTsurf(J) .GT. 999. ) THEN |
104 |
|
|
Tsurf(J) = tFreeze |
105 |
|
|
EVAP(J) = Evp0(J) |
106 |
|
|
SLRU(J) = Slr0(J) |
107 |
|
|
ELSE |
108 |
|
|
Tsurf(J) = Tsurf(J)+ dTsurf(J) |
109 |
|
|
EVAP(J) = EVAP(J) + dTsurf(J)*dEvp(J) |
110 |
|
|
SLRU(J) = SLRU(J) + dTsurf(J)*dSlr(J) |
111 |
|
|
ENDIF |
112 |
|
|
ENDDO |
113 |
|
|
|
114 |
|
|
C- end (if land_impl_grT) |
115 |
|
|
ENDIF |
116 |
|
|
|
117 |
|
|
#endif /* ALLOW_LAND */ |
118 |
|
|
#endif /* ALLOW_AIM */ |
119 |
|
|
|
120 |
|
|
RETURN |
121 |
|
|
END |