/[MITgcm]/MITgcm/model/src/swfrac.F
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Annotation of /MITgcm/model/src/swfrac.F

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Revision 1.10 - (hide annotations) (download)
Thu Oct 9 04:19:18 2003 UTC (20 years, 7 months ago) by edhill
Branch: MAIN
CVS Tags: checkpoint51k_post, checkpoint51o_pre, checkpoint51l_post, checkpoint51t_post, checkpoint51n_post, checkpoint51s_post, checkpoint51n_pre, checkpoint51l_pre, checkpoint51q_post, checkpoint51r_post, checkpoint51i_post, checkpoint51o_post, checkpoint51m_post, checkpoint51p_post
Branch point for: branch-nonh, tg2-branch, checkpoint51n_branch
Changes since 1.9: +3 -1 lines 
 o first check-in for the "branch-genmake2" merge
 o verification suite as run on shelley (gcc 3.2.2):

Wed Oct  8 23:42:29 EDT 2003
                T           S           U           V
G D M    c        m  s        m  s        m  s        m  s
E p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
N n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2 d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .

OPTFILE=NONE

Y Y Y Y 13 16 16 16  0 16 16 16 16 16 16 16 16 13 12  0  0 pass  adjustment.128x64x1
Y Y Y Y 16 16 16 16  0 16 16 16 16 16 16  0  0 16 16  0  0 pass  adjustment.cs-32x32x1
Y Y Y Y 16 16 16 16  0 16 16 16 16 16 16 22  0 16 16 22  0 pass  adjust_nlfs.cs-32x32x1
Y Y Y Y -- 13 13 16 16 13 13 13 13 16 16 16 16 16 16 16 16 N/O   advect_cs
Y Y Y Y -- 22 16 16 16 16 16 16 13 16 16 16 16 16 16 16 16 N/O   advect_xy
Y Y Y Y -- 13 16 13 16 16 16 16 16 16 16 22 16 16 16 16 16 N/O   advect_xz
Y Y Y Y 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 pass  aim.5l_cs
Y Y Y Y 14 16 16 16 16 16 16 16 16 13 16 16 16 16 16 13 16 pass  aim.5l_Equatorial_Channel
Y Y Y Y 16 16 16 16 16 16 16 16 16 16 16 13 16 16 13 13 16 pass  aim.5l_LatLon
Y Y Y Y 13 16 16 16 16 16 16 16 16 16 13 12 13 13 16 13 16 pass  exp0
Y Y Y Y 14 16 16 16 16 16 16 16 22 16 16 16 13 16 16 22 16 pass  exp1
Y Y Y Y 13 13 16 13 16 16 16 16 16 13 13 16 16 13 13 13 13 pass  exp2
Y Y Y Y 16 16 16 16 16 16 16 16 22 16 16 16 16 16 16 16 16 pass  exp4
Y Y Y Y 16 16 16 16 16 16 16 16 16 16 16 22 16 16 16 22 16 pass  exp5
Y Y Y Y 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 pass  front_relax
Y Y Y Y 14 16 16 13 13 16 16 13 13 16 13 13 16 12 13 13 16 pass  global_ocean.90x40x15
Y Y Y Y 10 16 16 13 13 16 13 16 16 13 13 13 13 16 16 13 16 FAIL  global_ocean.cs32x15
Y Y Y Y  6 11 12 13 13 12 13 16 13  9  9  9  9 10  9  9 11 FAIL  global_ocean_pressure
Y Y Y Y 14 16 16 13 16 16 16 13 13 13 13 13 16 12 16 13 16 pass  global_with_exf
Y Y Y Y 14 16 16 16 16 16 16 16 16 11 13 22 13 16 16  9 16 pass  hs94.128x64x5
Y Y Y Y 13 16 16 16 16 16 16 16 16 11 16 16 16 13 16 22 13 pass  hs94.1x64x5
Y Y Y Y 14 16 16 16 16 16 16 16 16 13 16 13 13 16 16 22 13 pass  hs94.cs-32x32x5
Y Y Y Y 10 10 16 13 13 16 16 16 22 16 13 13 13 13 13 22 13 FAIL  ideal_2D_oce
Y Y Y Y  8 16 16 16 16 16 16 16 16 13 13  8 16 16 16 16 16 FAIL  internal_wave
Y Y Y Y 14 16 16 16 16 16 16 16 16 13 13 22 13 13 13 22 16 pass  inverted_barometer
Y Y Y Y 12 16 16 16 16 16 16 16 16 16 13 12 13 13 13 13 13 FAIL  lab_sea
Y Y Y Y 11 16 16 16 16 16 16 16 13 13 13 12 13 16 13 12 13 FAIL  natl_box
Y Y Y Y 16 16 16 16 16 16 16 16 22 16 16 16 16 16 16 16 16 pass  plume_on_slope
Y Y Y Y 13 16 16 16 16 13 16 16 16 16 16 16 16 13 16 16 16 pass  solid-body.cs-32x32x1
1 edhill 1.10 C $Header: /u/u3/gcmpack/MITgcm/model/src/swfrac.F,v 1.9.20.1 2003/10/02 18:10:45 edhill Exp $
2 cnh 1.9 C $Name: $
3 adcroft 1.1
4 edhill 1.10 #include "PACKAGES_CONFIG.h"
5 adcroft 1.1 #include "CPP_OPTIONS.h"
6    
7 cnh 1.9 CBOP
8     C !ROUTINE: SWFRAC
9     C !INTERFACE:
10 adcroft 1.1 SUBROUTINE SWFRAC(
11 heimbach 1.6 I imax, fact,
12     I mytime, mythid,
13     U swdk )
14 cnh 1.9 C !DESCRIPTION: \bv
15     C *==========================================================*
16     C | SUBROUTINE SWFRAC
17     C | o Compute solar short-wave flux penetration.
18     C *==========================================================*
19     C | Compute fraction of solar short-wave flux penetrating to
20     C | specified depth, swdk, due to exponential decay in
21     C | Jerlov water type jwtype.
22     C | Reference : Two band solar absorption model of Paulson
23     C | and Simpson (1977, JPO, 7, 952-956)
24     C | Notes
25     C | =====
26     C | Parameter jwtype is hardcoded to 3 for time being.
27     C | Below 200m the solar penetration gets set to zero,
28     C | otherwise the limit for the exponent (+/- 5678) needs to
29     C | be taken care of.
30     C | Written by : Jan Morzel
31     C | Date : July 12, 1995
32     C *==========================================================*
33     C \ev
34 adcroft 1.1
35 cnh 1.9 C !USES:
36 adcroft 1.1 IMPLICIT NONE
37    
38 cnh 1.9 C !INPUT/OUTPUT PARAMETERS:
39 adcroft 1.1 C === Routine arguments ===
40     C input arguments
41 cnh 1.9 C imax :: number of vertical grid points
42     C fact :: scale factor to apply to depth array
43     C myTime :: current time in simulation
44     C myThid :: thread number for this instance of the routine.
45 adcroft 1.5 INTEGER imax
46 heimbach 1.6 _RL fact
47     _RL mytime
48     integer mythid
49     C input/output arguments
50 cnh 1.9 C swdk :: on input: vertical depth for desired sw fraction
51     C (fact*swdk) is negative distance (m) from surface
52     C swdk :: on output: short wave (radiation) fractional decay
53 heimbach 1.6 _RL swdk(imax)
54 adcroft 1.5
55 cnh 1.9 C !LOCAL VARIABLES:
56 adcroft 1.5 C === Local variables ===
57     C max number of different water types
58 heimbach 1.6 integer nwtype , jwtype
59     PARAMETER(nwtype=5)
60     _RL facz
61 adcroft 1.5 _RL rfac(nwtype),a1(nwtype),a2(nwtype)
62 adcroft 1.1 INTEGER i
63 heimbach 1.6 #ifdef ALLOW_CALENDAR
64     _RL fac
65     logical first, changed
66     integer count0, count1
67     integer myiter
68     integer jerl(12)
69     data jerl / 2 , 2 , 2 , 3 , 3 , 3 , 4 , 4 , 4 , 4 , 3 , 2 /
70     #endif /* ALLOW_CALENDAR */
71 adcroft 1.1 C
72     C Jerlov water type : I IA IB II III
73     C jwtype 1 2 3 4 5
74     C
75     DATA rfac / 0.58 , 0.62 , 0.67 , 0.77 , 0.78 /
76     DATA a1 / 0.35 , 0.6 , 1.0 , 1.5 , 1.4 /
77     DATA a2 / 23.0 , 20.0 , 17.0 , 14.0 , 7.9 /
78 cnh 1.9 CEOP
79    
80 heimbach 1.6 #ifdef ALLOW_CALENDAR
81 edhill 1.10 ceh3 this should have an IF ( useCALENDAR ) THEN
82 heimbach 1.6 myiter=0
83     call cal_GetMonthsRec(
84     O fac, first, changed, count0, count1,
85     I mytime, myiter, mythid )
86     jwtype=jerl(count0)
87     #else /* ALLOW_CALENDAR undef */
88 heimbach 1.7 jwtype=2
89 heimbach 1.6 #endif /* ALLOW_CALENDAR */
90    
91 adcroft 1.1 DO i = 1,imax
92 heimbach 1.6 facz = fact*swdk(i)
93 adcroft 1.1 IF (facz .LT. (-200.)) THEN
94     swdk(i) = 0.
95     ELSE
96     swdk(i) = rfac(jwtype) * exp(facz/a1(jwtype))
97     $ + (1.-rfac(jwtype)) * exp(facz/a2(jwtype))
98     ENDIF
99     ENDDO
100 adcroft 1.4
101 adcroft 1.1 RETURN
102     END
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