/[MITgcm]/MITgcm/pkg/aim_v23/phy_suflux_ocean.F
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Revision 1.2 - (show annotations) (download)
Thu Jun 24 23:43:11 2004 UTC (19 years, 10 months ago) by jmc
Branch: MAIN
CVS Tags: checkpoint64y, checkpoint64x, checkpoint58l_post, checkpoint64z, checkpoint57t_post, checkpoint64q, checkpoint64p, checkpoint64s, checkpoint64r, checkpoint64u, checkpoint64t, checkpoint64w, checkpoint64v, checkpoint64i, checkpoint64h, checkpoint64k, checkpoint64j, checkpoint64m, checkpoint64l, checkpoint64o, checkpoint64n, checkpoint64a, checkpoint57o_post, checkpoint64c, checkpoint64b, checkpoint64e, checkpoint64d, checkpoint64g, checkpoint64f, checkpoint58e_post, checkpoint57v_post, checkpoint58u_post, checkpoint58w_post, checkpoint54a_pre, checkpoint57m_post, checkpoint55c_post, checkpoint54e_post, checkpoint57s_post, checkpoint54a_post, checkpoint63p, checkpoint63q, checkpoint63r, checkpoint63s, checkpoint63l, checkpoint63m, checkpoint63n, checkpoint63o, checkpoint63h, checkpoint63i, checkpoint63j, checkpoint63k, checkpoint63d, checkpoint63e, checkpoint63f, checkpoint63g, checkpoint63a, checkpoint63b, checkpoint63c, checkpoint57k_post, checkpoint55d_pre, checkpoint57d_post, checkpoint57g_post, checkpoint64, checkpoint65, checkpoint60, checkpoint61, checkpoint62, checkpoint63, checkpoint57b_post, checkpoint57c_pre, checkpoint58r_post, checkpoint55j_post, checkpoint56b_post, checkpoint57i_post, checkpoint57y_post, checkpoint57e_post, checkpoint66g, checkpoint66f, checkpoint66e, checkpoint66d, checkpoint66c, checkpoint66b, checkpoint66a, checkpoint66o, checkpoint66n, checkpoint66m, checkpoint66l, checkpoint66k, checkpoint66j, checkpoint66i, checkpoint66h, checkpoint55h_post, checkpoint58n_post, checkpoint58x_post, checkpoint57g_pre, checkpoint54b_post, checkpoint55b_post, checkpoint58t_post, checkpoint58h_post, checkpoint65z, checkpoint65x, checkpoint65y, checkpoint54d_post, checkpoint65r, checkpoint65s, checkpoint65p, checkpoint65q, checkpoint65v, checkpoint65w, checkpoint65t, checkpoint65u, checkpoint65j, checkpoint65k, checkpoint65h, checkpoint65i, checkpoint65n, checkpoint65o, checkpoint65l, checkpoint65m, checkpoint65b, checkpoint65c, checkpoint65a, checkpoint65f, checkpoint65g, checkpoint65d, checkpoint65e, checkpoint56c_post, checkpoint57y_pre, checkpoint55, checkpoint57f_pre, checkpoint57a_post, checkpoint54, checkpoint58q_post, checkpoint54f_post, checkpoint59q, checkpoint59p, checkpoint55g_post, checkpoint59r, checkpoint58j_post, checkpoint59e, checkpoint59d, checkpoint59g, checkpoint59f, checkpoint59a, checkpoint55f_post, checkpoint59c, checkpoint59b, checkpoint59m, checkpoint59l, checkpoint59o, checkpoint59n, checkpoint59i, checkpoint59h, checkpoint59k, checkpoint59j, checkpoint57r_post, checkpoint59, checkpoint58, checkpoint57a_pre, checkpoint55i_post, checkpoint57, checkpoint56, eckpoint57e_pre, checkpoint57h_done, checkpoint58f_post, checkpoint53g_post, checkpoint57x_post, checkpoint57n_post, checkpoint58d_post, checkpoint58c_post, checkpoint57w_post, checkpoint57p_post, checkpint57u_post, checkpoint57f_post, checkpoint58a_post, checkpoint58i_post, checkpoint57q_post, checkpoint58g_post, checkpoint58o_post, checkpoint57z_post, checkpoint62c, checkpoint62b, checkpoint62a, checkpoint62g, checkpoint62f, checkpoint62e, checkpoint62d, checkpoint62k, checkpoint62j, checkpoint62i, checkpoint62h, checkpoint62o, checkpoint62n, checkpoint62m, checkpoint62l, checkpoint62s, checkpoint62r, checkpoint62q, checkpoint62p, checkpoint62w, checkpoint62v, checkpoint62u, checkpoint62t, checkpoint57c_post, checkpoint62z, checkpoint62y, checkpoint62x, checkpoint58y_post, checkpoint55e_post, checkpoint58k_post, checkpoint58v_post, checkpoint53f_post, checkpoint55a_post, checkpoint54c_post, checkpoint58s_post, checkpoint61f, checkpoint61g, checkpoint61d, checkpoint61e, checkpoint61b, checkpoint61c, checkpoint58p_post, checkpoint61a, checkpoint61n, checkpoint61o, checkpoint61l, checkpoint61m, checkpoint61j, checkpoint61k, checkpoint61h, checkpoint61i, checkpoint61v, checkpoint61w, checkpoint61t, checkpoint61u, checkpoint61r, checkpoint61s, checkpoint61p, checkpoint61q, checkpoint57j_post, checkpoint61z, checkpoint61x, checkpoint61y, checkpoint58b_post, checkpoint57h_pre, checkpoint58m_post, checkpoint57l_post, checkpoint57h_post, checkpoint56a_post, checkpoint55d_post, HEAD
Changes since 1.1: +17 -4 lines 
- include stability function into surf.Flux derivative relative to Ts
- calculate clear-sky radiation & surface temp. change
- update diagnostics (snap-shot, timeave & diagnostics)
1 C $Header: /u/gcmpack/MITgcm/pkg/aim_v23/phy_suflux_ocean.F,v 1.1 2004/03/11 14:33:19 jmc Exp $
2 C $Name: $
3
4 #include "AIM_OPTIONS.h"
5
6 CBOP
7 C !ROUTINE: SUFLUX_OCEAN
8 C !INTERFACE:
9 SUBROUTINE SUFLUX_OCEAN(
10 I PSA, FMASK,
11 I Tsurf, SSR, SLRD,
12 I T1, T0, Q0, DENVV,
13 O SHF, EVAP, SLRU,
14 I bi,bj,myThid)
15
16 C !DESCRIPTION: \bv
17 C *==========================================================*
18 C | S/R SUFLUX_OCEAN
19 C | o compute surface flux over ocean
20 C *==========================================================*
21 C | o contains part of original S/R SUFLUX (Speedy code)
22 C *==========================================================*
23 C \ev
24
25 C !USES:
26 IMPLICIT NONE
27
28 C Resolution parameters
29
30 C-- size for MITgcm & Physics package :
31 #include "AIM_SIZE.h"
32 #include "EEPARAMS.h"
33
34 C Physical constants + functions of sigma and latitude
35 #include "com_physcon.h"
36
37 C Surface flux constants
38 #include "com_sflcon.h"
39
40 C == Routine Arguments ==
41 C-- Input:
42 C FMASK :: fractional land-sea mask (2-dim)
43 C Tsurf :: surface temperature (2-dim)
44 C SSR :: sfc sw radiation (net flux) (2-dim)
45 C SLRD :: sfc lw radiation (downward flux)(2-dim)
46 C T1 :: near-surface air temperature (from Pot.temp)
47 C T0 :: near-surface air temperature (2-dim)
48 C Q0 :: near-surface sp. humidity [g/kg](2-dim)
49 C DENVV :: surface flux (sens,lat.) coeff. (=Rho*|V|) [kg/m2/s]
50 C-- Output:
51 C SHF :: sensible heat flux (2-dim)
52 C EVAP :: evaporation [g/(m^2 s)] (2-dim)
53 C SLRU :: sfc lw radiation (upward flux) (2-dim)
54 C-- Input:
55 C bi,bj :: tile index
56 C myThid :: Thread number for this instance of the routine
57 C--
58 _RL PSA(NGP)
59 _RL FMASK(NGP), Tsurf(NGP)
60 _RL SSR(NGP), SLRD(NGP)
61 _RL T1(NGP), T0(NGP), Q0(NGP), DENVV(NGP)
62
63 _RL SHF(NGP), EVAP(NGP), SLRU(NGP)
64
65 INTEGER bi,bj,myThid
66 CEOP
67
68 #ifdef ALLOW_AIM
69
70 C-- Local variables:
71 C CDENVV :: surf. heat flux (sens.,lat.) coeff including stability effect
72 _RL CDENVV(NGP), RDTH, FSSEA
73 _RL QSAT0(NGP)
74 _RL QDUMMY(1), RDUMMY(1), TS4
75 INTEGER J
76
77 C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
78
79 C-- 2. Computation of fluxes over land and sea
80
81 C 2.1 Wind stress
82
83 C 2.2 Sensible heat flux (from clim. TS over land)
84
85 C Stability correction
86
87 RDTH = FSTAB/DTHETA
88
89 DO J=1,NGP
90 FSSEA =1.+MIN(DTHETA,MAX(-DTHETA, Tsurf(J)-T1(J)))*RDTH
91 CDENVV(J)=CHS*DENVV(J)*FSSEA
92 ENDDO
93
94 DO J=1,NGP
95 SHF(J) = CDENVV(J)*CP*(Tsurf(J)-T0(J))
96 ENDDO
97
98 C 2.3 Evaporation
99
100 CALL SHTORH (0, NGP, Tsurf, PSA, 1. _d 0, QDUMMY, RDUMMY,
101 & QSAT0, myThid)
102
103 DO J=1,NGP
104 EVAP(J) = CDENVV(J)*(QSAT0(J)-Q0(J))
105 ENDDO
106
107 C 2.4 Emission of lw radiation from the surface
108
109 DO J=1,NGP
110 TS4 = Tsurf(J)**4
111 SLRU(J) = SBC*TS4
112 ENDDO
113
114 C-- 3. Adjustment of skin temperature and fluxes over land
115 C-- based on energy balance (to be implemented)
116 C <= done separately for each surface type (land,sea,se-ice)
117
118 C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
119 #endif /* ALLOW_AIM */
120
121 RETURN
122 END
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