Sources/phylmd/FCTTRE.f

module FCTTRE

  ! From phylmd/FCTTRE.inc, version 1.2 2004/06/22 11:45:32

  ! This COMDECK includes the thermodynamical functions for the cycle
  ! 39 ECMWF Physics package. Consistent with SUPHEC_M basic physics
  ! constants, assuming the partial pressure of water vapour is given
  ! by a first order Taylor expansion of Qs(T) with respect to
  ! temperature, using constants in yoethf_m.

  implicit none

  LOGICAL, PARAMETER:: thermcep= .TRUE.

contains

  REAL function FOEEW(T, DEL)

    use yoethf_m, only: R3LES, R3IES, R4LES, R4IES
    use SUPHEC_M, only: rtt

    REAL, intent(in):: T, DEL

    !-----------------------

    FOEEW = EXP((R3LES * (1. - DEL) + R3IES * DEL) * (T - RTT) &
         / (T - (R4LES * (1. - DEL) + R4IES * DEL)))

  end function FOEEW

  !******************************************

  REAL function FOEDE(T, DEL, P5ARG, QS, PCOARG)

    use yoethf_m, only: R4LES, R4IES

    REAL, intent(in):: T, DEL
    real, intent(in):: P5ARG, QS, PCOARG

    !-----------------------

    FOEDE = QS*PCOARG*P5ARG / (T-(R4LES*(1.-DEL)+R4IES*DEL))**2

  end function FOEDE

  !******************************************

  REAL function qsats(t)

    REAL, intent(in):: T

    !-----------------------

    qsats = 100.0 * 0.622 &
         * 10.**(2.07023 - 0.00320991 * t - 2484.896 / t + 3.56654 * LOG10(t))

  end function qsats

  !******************************************

  REAL function qsatl(t)

    REAL, intent(in):: T

    !-----------------------

    qsatl = 100.0 * 0.622 * 10.**(23.8319 - 2948.964 / t &
         - 5.028 * LOG10(t) - 29810.16 * EXP(- 0.0699382 * t) &
         + 25.21935 * EXP(- 2999.924 / t))

  end function qsatl

  !******************************************

  REAL function dqsats(t, qs)

    use SUPHEC_M, only: RLVTT, rcpd

    REAL, intent(in):: T, qs

    !-----------------------

    dqsats = RLVTT / RCPD * qs * (3.56654/t &
         +2484.896*LOG(10.)/t**2 - 0.00320991*LOG(10.))

  end function dqsats

  !******************************************

  REAL function dqsatl(t, qs)

    use SUPHEC_M, only: RLVTT, rcpd

    REAL, intent(in):: T, qs

    !-----------------------

    dqsatl = RLVTT / RCPD * qs * LOG(10.) &
         * (2948.964/t**2-5.028/LOG(10.)/t &
         +25.21935*2999.924/t**2*EXP(-2999.924/t) &
         +29810.16*0.0699382*EXP(-0.0699382*t))

  end function dqsatl

end module FCTTRE
1	guez	3	module FCTTRE
2
3	guez	37	! From phylmd/FCTTRE.inc, version 1.2 2004/06/22 11:45:32
4	guez	3
5	guez	37	! This COMDECK includes the thermodynamical functions for the cycle
6	guez	38	! 39 ECMWF Physics package. Consistent with SUPHEC_M basic physics
7	guez	37	! constants, assuming the partial pressure of water vapour is given
8			! by a first order Taylor expansion of Qs(T) with respect to
9	guez	38	! temperature, using constants in yoethf_m.
10	guez	3
11			implicit none
12
13	guez	37	LOGICAL, PARAMETER:: thermcep= .TRUE.
14	guez	3
15			contains
16
17	guez	37	REAL function FOEEW(T, DEL)
18	guez	3
19	guez	38	use yoethf_m, only: R3LES, R3IES, R4LES, R4IES
20			use SUPHEC_M, only: rtt
21	guez	3
22	guez	37	REAL, intent(in):: T, DEL
23	guez	3
24			!-----------------------
25
26	guez	37	FOEEW = EXP((R3LES * (1. - DEL) + R3IES * DEL) * (T - RTT) &
27			/ (T - (R4LES * (1. - DEL) + R4IES * DEL)))
28	guez	3
29			end function FOEEW
30
31			!******************************************
32
33	guez	37	REAL function FOEDE(T, DEL, P5ARG, QS, PCOARG)
34	guez	3
35	guez	38	use yoethf_m, only: R4LES, R4IES
36	guez	3
37	guez	37	REAL, intent(in):: T, DEL
38			real, intent(in):: P5ARG, QS, PCOARG
39	guez	3
40			!-----------------------
41
42	guez	37	FOEDE = QSPCOARGP5ARG / (T-(R4LES(1.-DEL)+R4IESDEL))**2
43	guez	3
44			end function FOEDE
45
46			!******************************************
47
48	guez	37	REAL function qsats(t)
49	guez	3
50	guez	37	REAL, intent(in):: T
51	guez	3
52			!-----------------------
53
54	guez	37	qsats = 100.0 * 0.622 &
55			* 10.*(2.07023 - 0.00320991 t - 2484.896 / t + 3.56654 * LOG10(t))
56	guez	3
57			end function qsats
58
59			!******************************************
60
61	guez	37	REAL function qsatl(t)
62	guez	3
63	guez	37	REAL, intent(in):: T
64	guez	3
65			!-----------------------
66
67	guez	37	qsatl = 100.0 * 0.622 * 10.**(23.8319 - 2948.964 / t &
68			- 5.028 * LOG10(t) - 29810.16 * EXP(- 0.0699382 * t) &
69			+ 25.21935 * EXP(- 2999.924 / t))
70	guez	3
71			end function qsatl
72
73			!******************************************
74
75	guez	37	REAL function dqsats(t, qs)
76	guez	3
77	guez	38	use SUPHEC_M, only: RLVTT, rcpd
78	guez	3
79	guez	37	REAL, intent(in):: T, qs
80	guez	3
81			!-----------------------
82
83	guez	37	dqsats = RLVTT / RCPD * qs * (3.56654/t &
84			+2484.896LOG(10.)/t2 - 0.00320991LOG(10.))
85	guez	3
86			end function dqsats
87
88			!******************************************
89
90	guez	37	REAL function dqsatl(t, qs)
91	guez	3
92	guez	38	use SUPHEC_M, only: RLVTT, rcpd
93	guez	3
94	guez	37	REAL, intent(in):: T, qs
95	guez	3
96			!-----------------------
97
98	guez	37	dqsatl = RLVTT / RCPD * qs * LOG(10.) &
99			* (2948.964/t**2-5.028/LOG(10.)/t &
100			+25.219352999.924/t2EXP(-2999.924/t) &
101			+29810.160.0699382EXP(-0.0699382*t))
102	guez	3
103			end function dqsatl
104
105			end module FCTTRE