phylmd/CV30_routines/cv30_param.f

module cv30_param_m

  ! From LMDZ4/libf/phylmd/cvparam3.h, version 1.1.1.1, 2004/05/19 12:53:09

  ! Set parameters for Emanuel convection scheme. Includes
  ! microphysical parameters and parameters that control the rate of
  ! approach to quasi-equilibrium.

  USE dimphy, ONLY: klev

  implicit none

  integer, parameter:: minorig = 1 
  ! first level of convection (limit levels for convection)

  integer, parameter:: nl = klev - 1
  ! Limit for convection. The maximum number of levels to which
  ! convection can penetrate, plus 1. We should have:
  ! 6 <= nl <= KLEV - 1
  ! (because of locate in cv30_feed).

  real, parameter:: sigd = 0.01 
  ! fractional area covered by unsaturated downdraft
  ! \sigma_d in Emanuel (1991 928)

  real, parameter:: dtcrit = - 2.
  ! Critical buoyancy (K) used to adjust the approach to
  ! quasi-equilibrium. It must be < 0.

  real beta, alpha
  ! Parameters that control the rate of approach to quasi-equilibrium
  ! (their standard values are 1. and 0.96, respectively) (beta must
  ! be less than or equal to 1).

  private klev

contains

  SUBROUTINE cv30_param

    ! From LMDZ4/libf/phylmd/cv3_routines.F, version 1.5, 2005/07/11 15:20:02

    use comconst, only: dtphys

    ! Local:

    real, parameter:: tau = 8000.
    ! characteristic timescale used to compute alpha and beta

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

    beta = 1. - dtphys / tau

    alpha = 1.5E-3 * dtphys / tau * 1.5
    ! factor 1.5: increase alpha to compensate W decrease

  end SUBROUTINE cv30_param

end module cv30_param_m
1	module cv30_param_m
2
3	! From LMDZ4/libf/phylmd/cvparam3.h, version 1.1.1.1, 2004/05/19 12:53:09
4
5	! Set parameters for Emanuel convection scheme. Includes
6	! microphysical parameters and parameters that control the rate of
7	! approach to quasi-equilibrium.
8
9	USE dimphy, ONLY: klev
10
11	implicit none
12
13	integer, parameter:: minorig = 1
14	! first level of convection (limit levels for convection)
15
16	integer, parameter:: nl = klev - 1
17	! Limit for convection. The maximum number of levels to which
18	! convection can penetrate, plus 1. We should have:
19	! 6 <= nl <= KLEV - 1
20	! (because of locate in cv30_feed).
21
22	real, parameter:: sigd = 0.01
23	! fractional area covered by unsaturated downdraft
24	! \sigma_d in Emanuel (1991 928)
25
26	real, parameter:: dtcrit = - 2.
27	! Critical buoyancy (K) used to adjust the approach to
28	! quasi-equilibrium. It must be < 0.
29
30	real beta, alpha
31	! Parameters that control the rate of approach to quasi-equilibrium
32	! (their standard values are 1. and 0.96, respectively) (beta must
33	! be less than or equal to 1).
34
35	private klev
36
37	contains
38
39	SUBROUTINE cv30_param
40
41	! From LMDZ4/libf/phylmd/cv3_routines.F, version 1.5, 2005/07/11 15:20:02
42
43	use comconst, only: dtphys
44
45	! Local:
46
47	real, parameter:: tau = 8000.
48	! characteristic timescale used to compute alpha and beta
49
50	!------------------------------------------------------------
51
52	beta = 1. - dtphys / tau
53
54	alpha = 1.5E-3 * dtphys / tau * 1.5
55	! factor 1.5: increase alpha to compensate W decrease
56
57	end SUBROUTINE cv30_param
58
59	end module cv30_param_m