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!MNH_LIC Copyright 1994-2013 CNRS, Meteo-France and Universite Paul Sabatier
!MNH_LIC This is part of the Meso-NH software governed by the CeCILL-C licence
!MNH_LIC version 1. See LICENCE, CeCILL-C_V1-en.txt and CeCILL-C_V1-fr.txt
!MNH_LIC for details. version 1.
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!-----------------------------------------------------------------
!--------------- special set of characters for RCS information
!-----------------------------------------------------------------
! $Source$ $Revision$
! MASDEV4_7 modd 2006/05/18 13:07:25
!-----------------------------------------------------------------
! #######################
MODULE MODD_ELEC_PARAM
! #######################
!
!!**** *MODD_ELEC_PARAM* - declaration of some electrical factors
!! extensively used in the electrical scheme.
!!
!! PURPOSE
!! -------
! The purpose of this declarative module is to declare some precomputed
! electrical parameters directly used in routine RAIN_ICE_ELEC.
!!
!!** IMPLICIT ARGUMENTS
!! ------------------
!! None
!!
!! REFERENCE
!! ---------
!!
!! AUTHOR
!! ------
!! Gilles Molinie * Laboratoire d'Aerologie *
!!
!!
!! MODIFICATIONS
!! -------------
!! Original 14/11/02
!!
!-------------------------------------------------------------------------------
!
!* 0. DECLARATIONS
! ------------
!
REAL, SAVE :: XCOEF_RQ_V, XCOEF_RQ_C, & ! Constants for proportionality
XCOEF_RQ_R, XCOEF_RQ_I, & ! between mass transfer and
XCOEF_RQ_S, XCOEF_RQ_G, & ! charge transfer
XCOEF_RQ_H
!
REAL :: XEGMIN, XEGMAX, XESMIN, XESMAX, & ! Max and min values for
XEIMIN, XEIMAX, XECMIN, XECMAX, & ! e_x in q=e_x D^f_x
XERMIN, XERMAX, XEHMIN, XEHMAX
!
REAL, SAVE :: XQHON ! Constant for spontaneous freezing of droplets if T<-35
!
REAL, SAVE :: XFQSEDR, XEXQSEDR, & ! Constant for sedimentation of rain
XFQSEDI, XEXQSEDI, & ! ice
XFQSEDS, XEXQSEDS, & ! snow
XFQSEDG, XEXQSEDG, & ! graupel
XFQSEDH, XEXQSEDH ! hail
REAL, SAVE :: XFCI ! Constant for sedimentation of the mixing ratio of ice
! which the computation is modified in regard of rain_ice.f90
!
REAL, SAVE :: XQSRIMCG, XEXQSRIMCG ! Constant for riming of cloud droplets
! on snow
REAL, DIMENSION(:), SAVE, ALLOCATABLE :: XGAMINC_RIM3
!
REAL, SAVE :: XQRCFRIG, XEXQRCFRIG ! Constant for contact freezing between
! raindrops and pristine ice
REAL, SAVE :: XFQRACCS ! Constant in RACCS
!
REAL, SAVE :: XFQIAGGSBH, & ! Constant for IAGGS charging
XFQIAGGSBG, XEXFQIAGGSBG, & ! process for HELFA, GARDI,
XFQIAGGSBS, & ! SAUND and TAKAH
XFQIAGGSBT1, XFQIAGGSBT2, XFQIAGGSBT3
!
REAL, SAVE :: XLBQRACCS1, XLBQRACCS2, XLBQRACCS3 ! Integral of normalization
REAL, SAVE :: XLBQSACCRG1, XLBQSACCRG2, XLBQSACCRG3 ! in accretion of raindrops
! on snow process
!
REAL, DIMENSION(:,:), SAVE, ALLOCATABLE & ! Normalized kernel for
:: XKER_Q_RACCS, XKER_Q_RACCSS, XKER_Q_SACCRG ! RACCS, RACCSS, SACCRG
!
REAL, SAVE :: XFQSDRYG, XFQSDRYGB, XFQRDRYG ! Constant in SDRYG and RDRYG
!
! charge separation
!
REAL, DIMENSION(:,:), SAVE, ALLOCATABLE :: XKER_Q_LIMSG
REAL, DIMENSION(:,:), SAVE, ALLOCATABLE &
:: XKER_Q_SDRYGB, XKER_Q_SDRYGB1, XKER_Q_SDRYGB2
REAL, DIMENSION(:,:), SAVE, ALLOCATABLE &
:: XFTAKA ! F(T,LWC) for Takahashi (1978) charge
! generation parametrization
!
! Helsdon-Farley
!
REAL :: XHIDRYG ! Constant charge separated
REAL :: XHSDRYG ! Constant charge separated
REAL, SAVE :: XLBQSDRYGB4H, XLBQSDRYGB5H, XLBQSDRYGB6H ! Constants in QIDRYGB
REAL, SAVE :: XFQSDRYGBH !
!
! Gardiner
!
REAL, SAVE :: XLWCC ! LWC critic in Gardiner NI charging
REAL, SAVE :: XFQIDRYGBG, XLBQIDRYGBG ! Constants in QIDRYGB
REAL, SAVE :: XFQSDRYGBG ! Constants in QSDRYGB
REAL, SAVE :: XLBQSDRYGB4G, XLBQSDRYGB5G, XLBQSDRYGB6G !
!
! Saunders
!
REAL, SAVE :: XIMP, XINP, XIKP, & ! Parameters m, n and k
XIMN, XINN, XIKN, & ! for the NI processes
XSMP, XSNP, XSKP, & ! following
XSMN, XSNN, XSKN ! Saunders et al. (1991)
REAL, SAVE :: XINISAP
REAL, SAVE :: XFQIDRYGBS, XLBQIDRYGBS ! Constants in QIDRYGB
REAL, SAVE :: XFQSDRYGBS ! Constants in QSDRYGB
REAL, SAVE :: XLBQSDRYGB1S, XLBQSDRYGB2S !
!
! Takahashi
!
INTEGER, SAVE :: NIND_TEMP ! number of indexes for temperature
INTEGER, SAVE :: NIND_LWC ! number of indexes for liquid water content
REAL, DIMENSION(:,:), SAVE, ALLOCATABLE :: XMANSELL ! F(T,LWC) for Takahashi(1978)
!
REAL, SAVE :: XFQIDRYGBT1, XFQIDRYGBT2, XFQIDRYGBT3, & ! IDRYGB
XFQSDRYGBT1, XFQSDRYGBT2, XFQSDRYGBT3, & ! SDRYGB
XFQSDRYGBT4, XFQSDRYGBT5, XFQSDRYGBT6, & ! SDRYGB
XFQSDRYGBT7, XFQSDRYGBT8, XFQSDRYGBT9, & ! SDRYGB
XFQSDRYGBT10, XFQSDRYGBT11, XFQSDRYGBT12 ! SDRYGB
!
REAL, SAVE :: XLBQRDRYG1, XLBQRDRYG2, XLBQRDRYG3 ! Integral of normalization in
REAL, SAVE :: XLBQSDRYG1, XLBQSDRYG2, XLBQSDRYG3 ! the accretion of graupel on
! raindrop and snow process
!
REAL, DIMENSION(:,:), SAVE, ALLOCATABLE &
:: XKER_Q_SDRYG, XKER_Q_RDRYG ! Normalized kernel for SDRYG and RDRYG
!
REAL, SAVE :: XFQUPDC, XFQUPDR, XFQUPDI,& ! Update Q=f(D)
XEXFQUPDI, XFQUPDS, XFQUPDG, XFQUPDH
!
REAL, SAVE :: XQREVAV1, XQREVAV2 ! Raindrops evaporation
!
! Add variables to limit the exchanged charge
!
REAL, SAVE :: XAUX_LIM
REAL, SAVE :: XAUX_LIM1, XAUX_LIM2, XAUX_LIM3
!
!
! Inductive charging process
!
REAL, SAVE :: XCOLCG_IND ! collision effiency
REAL, SAVE :: XEBOUND ! rebound efficiency
REAL, SAVE :: XALPHA_IND ! fraction of droplets with grazing trajectories
REAL, SAVE :: XCOS_THETA ! average cosine of the angle of rebounding collision
REAL, SAVE :: XIND1, XIND2, XIND3
!
! lightning
!
REAL :: XFQLIGHTC, XFQLIGHTR, &
XFQLIGHTI, XFQLIGHTS, XFQLIGHTG ! Constant for charge redistribution
REAL :: XEXQLIGHTR, &
XEXQLIGHTI, XEXQLIGHTS, XEXQLIGHTG ! Exponent for charge redistribution
!
END MODULE MODD_ELEC_PARAM