lmdz_blowing_snow_ini.f90 Source File

module lmdz_blowing_snow_ini

implicit none

   real, save, protected :: RCPD, RV, RLSTT, RLVTT, RLMLT, RVTMP2, RTT,RD,RG, RPI
   real, save, protected :: coef_sub_bs, fallv_bs, zeta_bs, c_esalt_bs
   real, save, protected :: prt_bs, pbst_bs, qbst_bs, r_bs
   integer, save, protected :: iflag_saltation_bs, iflag_sedim_bs, iflag_sublim_bs

   !$OMP THREADPRIVATE(RCPD, RV, RLSTT, RLVTT, RLMLT, RVTMP2, RTT,RD,RG, RPI)
   !$OMP THREADPRIVATE(coef_sub_bs, fallv_bs, r_bs, zeta_bs, c_esalt_bs)
   !$OMP THREADPRIVATE(pbst_bs, prt_bs, qbst_bs)
   !$OMP THREADPRIVATE(iflag_saltation_bs,iflag_sedim_bs, iflag_sublim_bs)

   real, save, protected :: tbsmelt=278.15    ! parameter to calculate melting fraction of BS sedimentation
   real, save, protected :: taumeltbs0=600.0  ! Melting time scale of blowing snow at 273.15K
   real, save, protected :: qbmin=1.E-10      ! Minimum blowing snow specific content
   !$OMP THREADPRIVATE(tbsmelt, taumeltbs0, qbmin)

   real, save, protected :: tau_dens0_bs=864000.      ! 10 days by default, in s
   real, save, protected :: tau_densmin_bs= 21600.    ! 1/4 days according to in situ obs by C. Amory during blowing snow +
                                                      ! Marshall et al. 1999 (snow densification during rain)
   real, save, protected :: tau_eqsalt_bs= 10.        ! Nemoto and Nishimura 2004 show that steady-state saltation is achieved within a time tau_eqsalt of about 10s
   real, save, protected :: rhofresh_bs = 300.0       ! fresh snow density kg/m3
   real, save, protected :: rhohard_bs = 450.0       ! hard snow density kg/m3
   real, save, protected :: rhoice_bs = 920.0         ! ice density kg/m3
   real, save, protected :: rhobs=900.0               ! blowing snow density (kg/m3) following Bintanja et al. 2001 part I
   !$OMP THREADPRIVATE(rhoice_bs, rhofresh_bs, rhohard_bs, tau_dens0_bs, tau_densmin_bs, tau_eqsalt_bs, rhobs)


    contains

   subroutine blowing_snow_ini(RCPD_in, RLSTT_in, RLVTT_in, RLMLT_in,&
                                  RVTMP2_in, RTT_in,RD_in,RG_in, RV_in, RPI_in)

         USE ioipsl_getin_p_mod, ONLY : getin_p

         real, intent(in) :: RCPD_in, RLSTT_in, RLVTT_in, RLMLT_in, RPI_in
         real, intent(in) ::  RVTMP2_in, RTT_in, RD_in, RG_in, RV_in


         RG=RG_in
         RD=RD_in
         RV=RV_in
         RCPD=RCPD_in
         RLVTT=RLVTT_in
         RLSTT=RLSTT_in
         RLMLT=RLMLT_in
         RTT=RTT_in
         RG=RG_in
         RVTMP2=RVTMP2_in
         RPI=RPI_in

         c_esalt_bs= 3.25
         CALL getin_p('c_esalt_bs',c_esalt_bs)

         qbst_bs= 0.001
         CALL getin_p('qbst_bs',qbst_bs)

         pbst_bs= 0.00003
         CALL getin_p('pbst_bs',pbst_bs)

         prt_bs= 0.00003
         CALL getin_p('prt_bs',prt_bs)

         zeta_bs= 1.
         CALL getin_p('zeta_bs',zeta_bs)

         fallv_bs = 0.5
         CALL getin_p('fallv_bs',fallv_bs)

         coef_sub_bs =  0.1 
         CALL getin_p('coef_sub_bs',coef_sub_bs)

         iflag_sublim_bs=1
         CALL getin_p('iflag_sublim_bs',iflag_sublim_bs)

         iflag_sedim_bs=1
         CALL getin_p('iflag_sedim_bs',iflag_sedim_bs)

         r_bs=150.0e-6
         CALL getin_p('r_bs',r_bs)

      end subroutine blowing_snow_ini

end module lmdz_blowing_snow_ini