/[lmdze]/trunk/phylmd/FCTTRE.f90
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trunk/libf/phylmd/FCTTRE.f90 revision 3 by guez, Wed Feb 27 13:16:39 2008 UTC trunk/phylmd/FCTTRE.f90 revision 76 by guez, Fri Nov 15 18:45:49 2013 UTC
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1  module FCTTRE  module FCTTRE
2    
3    ! From phylmd/FCTTRE.inc,v 1.2 2004/06/22 11:45:32    ! From phylmd/FCTTRE.inc, version 1.2 2004/06/22 11:45:32
4    
5    !      This COMDECK includes the Thermodynamical functions for the cy39    ! This module includes the thermodynamical functions for the cycle
6    !       ECMWF Physics package.    ! 39 ECMWF Physics package. Consistent with "SUPHEC_M" basic
7    !       Consistent with YOMCST Basic physics constants, assuming the    ! physical constants, assuming the partial pressure of water vapour
8    !       partial pressure of water vapour is given by a first order    ! is given by a first order Taylor expansion of "Qs(T)" with respect
9    !       Taylor expansion of Qs(T) w.r.t. to Temperature, using constants    ! to temperature, using constants in "yoethf_m".
10    !       in YOETHF  
11      ! Probably from Buck, 1981, Journal of Applied Meteorology, volume
12      ! 20, number 12, page 1527.
13    
14    implicit none    implicit none
15    
16    LOGICAL, PARAMETER:: thermcep=.TRUE.    LOGICAL, PARAMETER:: thermcep= .TRUE.
17    
18  contains  contains
19    
20    REAL function FOEEW ( PTARG,PDELARG )    REAL function FOEEW(T, DEL)
21    
22      use yoethf, only: R3LES, R3IES, R4LES, R4IES      use yoethf_m, only: R3LES, R3IES, R4LES, R4IES
23      use YOMCST, only: rtt      use SUPHEC_M, only: rtt
24    
25      REAL, intent(in):: PTARG, PDELARG      REAL, intent(in):: T
26        REAL, intent(in):: DEL ! 1 for ice, 0 for liquid
27    
28      !-----------------------      !-----------------------
29    
30      FOEEW = EXP ((R3LES*(1.-PDELARG)+R3IES*PDELARG) * (PTARG-RTT) &      FOEEW = EXP((R3LES * (1. - DEL) + R3IES * DEL) * (T - RTT) &
31           / (PTARG-(R4LES*(1.-PDELARG)+R4IES*PDELARG)) )           / (T - (R4LES * (1. - DEL) + R4IES * DEL)))
32    
33    end function FOEEW    end function FOEEW
34    
35    !******************************************    !******************************************
36    
37    REAL function FOEDE(PTARG,PDELARG,P5ARG,PQSARG,PCOARG)    REAL function FOEDE(T, DEL, P5ARG, QS, PCOARG)
38    
39      use yoethf, only: R4LES, R4IES      use yoethf_m, only: R4LES, R4IES
40    
41      REAL, intent(in):: PTARG, PDELARG      REAL, intent(in):: T, DEL
42      real, intent(in):: P5ARG, PQSARG, PCOARG      real, intent(in):: P5ARG, QS, PCOARG
43    
44      !-----------------------      !-----------------------
45    
46      FOEDE = PQSARG*PCOARG*P5ARG / (PTARG-(R4LES*(1.-PDELARG)+R4IES*PDELARG))**2      FOEDE = QS*PCOARG*P5ARG / (T-(R4LES*(1.-DEL)+R4IES*DEL))**2
47    
48    end function FOEDE    end function FOEDE
49    
50    !******************************************    !******************************************
51    
52    REAL function qsats(ptarg)    REAL function qsats(t)
53    
54      REAL, intent(in):: PTARG      REAL, intent(in):: T
55    
56      !-----------------------      !-----------------------
57    
58      qsats = 100.0 * 0.622 * 10.0 &      qsats = 100.0 * 0.622 &
59           ** (2.07023 - 0.00320991 * ptarg &           * 10.**(2.07023 - 0.00320991 * t - 2484.896 / t + 3.56654 * LOG10(t))
          - 2484.896 / ptarg + 3.56654 * LOG10(ptarg))  
60    
61    end function qsats    end function qsats
62    
63    !******************************************    !******************************************
64    
65    REAL function qsatl(ptarg)    REAL function qsatl(t)
66    
67      REAL, intent(in):: PTARG      REAL, intent(in):: T
68    
69      !-----------------------      !-----------------------
70    
71      qsatl = 100.0 * 0.622 * 10.0 &      qsatl = 100.0 * 0.622 * 10.**(23.8319 - 2948.964 / t &
72           ** (23.8319 - 2948.964 / ptarg &           - 5.028 * LOG10(t) - 29810.16 * EXP(- 0.0699382 * t) &
73           - 5.028 * LOG10(ptarg) &           + 25.21935 * EXP(- 2999.924 / t))
          - 29810.16 * EXP( - 0.0699382 * ptarg) &  
          + 25.21935 * EXP( - 2999.924 / ptarg))  
74    
75    end function qsatl    end function qsatl
76    
77    !******************************************    !******************************************
78    
79    REAL function dqsats(ptarg,pqsarg)    REAL function dqsats(t, qs)
80    
81      use YOMCST, only: RLVTT, rcpd      use SUPHEC_M, only: RLVTT, rcpd
82    
83      REAL, intent(in):: PTARG, pqsarg      REAL, intent(in):: T, qs
84    
85      !-----------------------      !-----------------------
86    
87      dqsats = RLVTT/RCPD*pqsarg * (3.56654/ptarg &      dqsats = RLVTT / RCPD * qs * (3.56654/t &
88           +2484.896*LOG(10.)/ptarg**2 &           +2484.896*LOG(10.)/t**2 - 0.00320991*LOG(10.))
          -0.00320991*LOG(10.))  
89    
90    end function dqsats    end function dqsats
91    
92    !******************************************    !******************************************
93    
94    REAL function dqsatl(ptarg,pqsarg)    REAL function dqsatl(t, qs)
95    
96      use YOMCST, only: RLVTT, rcpd      use SUPHEC_M, only: RLVTT, rcpd
97    
98      REAL, intent(in):: PTARG, pqsarg      REAL, intent(in):: T, qs
99    
100      !-----------------------      !-----------------------
101    
102      dqsatl = RLVTT/RCPD*pqsarg*LOG(10.)* &      dqsatl = RLVTT / RCPD * qs * LOG(10.) &
103           (2948.964/ptarg**2-5.028/LOG(10.)/ptarg &           * (2948.964/t**2-5.028/LOG(10.)/t &
104           +25.21935*2999.924/ptarg**2*EXP(-2999.924/ptarg) &           +25.21935*2999.924/t**2*EXP(-2999.924/t) &
105           +29810.16*0.0699382*EXP(-0.0699382*ptarg))           +29810.16*0.0699382*EXP(-0.0699382*t))
106    
107    end function dqsatl    end function dqsatl
108    
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