Directory: | ./ |
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File: | phys/icefrac_lsc_mod.f90 |
Date: | 2022-01-11 19:19:34 |
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Lines: | 10 | 12 | 83.3% |
Branches: | 5 | 8 | 62.5% |
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1 | ! | ||
2 | ! $Header$ | ||
3 | ! | ||
4 | MODULE icefrac_lsc_mod | ||
5 | |||
6 | IMPLICIT NONE | ||
7 | |||
8 | CONTAINS | ||
9 | !******************************************************************* | ||
10 | |||
11 | 117000 | SUBROUTINE icefrac_lsc(np,temp, sig, icefrac) | |
12 | ! | ||
13 | ! Compute the ice fraction 1-xliq (see e.g. | ||
14 | ! Doutriaux-Boucher & Quaas 2004, section 2.2.) | ||
15 | ! | ||
16 | ! (JBM 3/14 8/14 5/16) | ||
17 | |||
18 | USE print_control_mod, ONLY: lunout, prt_level | ||
19 | INCLUDE "nuage.h" | ||
20 | |||
21 | ! nuage.h contains: | ||
22 | ! t_glace_min: if T < Tmin, the cloud is only made of water ice | ||
23 | ! t_glace_max: if T > Tmax, the cloud is only made of liquid water | ||
24 | ! exposant_glace: controls the sharpness of the transition | ||
25 | INTEGER :: np | ||
26 | REAL, DIMENSION(np), INTENT(IN) :: temp ! temperature | ||
27 | REAL, DIMENSION(np), INTENT(IN) :: sig | ||
28 | REAL, DIMENSION(np), INTENT(OUT) :: icefrac | ||
29 | |||
30 | REAL :: sig0,www,tmin_tmp,liqfrac_tmp | ||
31 | INTEGER :: ip | ||
32 | |||
33 | sig0=0.8 | ||
34 | |||
35 |
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116415000 | DO ip=1,np |
36 |
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116298000 | IF (iflag_t_glace.EQ.1) THEN |
37 | ! Transition to ice close to surface for T<Tmax | ||
38 | ! w=1 at the surface and 0 for sig < sig0 | ||
39 | ✗ | www=(max(sig(ip)-sig0,0.))/(1.-sig0) | |
40 |
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116298000 | ELSEIF (iflag_t_glace.GE.2) THEN |
41 | ! No convertion to ice close to surface | ||
42 | www = 0. | ||
43 | ENDIF | ||
44 | 116298000 | tmin_tmp=www*t_glace_max+(1.-www)*t_glace_min | |
45 | 116298000 | liqfrac_tmp= (temp(ip)-tmin_tmp) / (t_glace_max-tmin_tmp) | |
46 | 116298000 | liqfrac_tmp = MIN(MAX(liqfrac_tmp,0.0),1.0) | |
47 |
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116415000 | IF (iflag_t_glace.GE.3) THEN |
48 | 116298000 | icefrac(ip) = 1.0-liqfrac_tmp**exposant_glace | |
49 | ELSE | ||
50 | ✗ | icefrac(ip) = (1.0-liqfrac_tmp)**exposant_glace | |
51 | ENDIF | ||
52 | ENDDO | ||
53 | |||
54 | 117000 | RETURN | |
55 | END SUBROUTINE icefrac_lsc | ||
56 | |||
57 | !******************************************************************* | ||
58 | ! | ||
59 | END MODULE icefrac_lsc_mod | ||
60 |