Changeset 12894 for NEMO/branches/2020/r4.0-HEAD_r12713_clem_dan_fixcpl/cfgs/SHARED/namelist_ice_ref

Timestamp:

2020-05-08T15:40:58+02:00 (4 years ago)

Author:

clem

Message:

add parameterization of radiation from Marion Lebrun (2019)

File:

• NEMO/branches/2020/r4.0-HEAD_r12713_clem_dan_fixcpl/cfgs/SHARED/namelist_ice_ref (modified) (3 diffs)

NEMO/branches/2020/r4.0-HEAD_r12713_clem_dan_fixcpl/cfgs/SHARED/namelist_ice_ref

@@ -102 +102 @@
 &namdyn_adv     !   Ice advection
 !------------------------------------------------------------------------------
-   ln_adv_Pra       = .true.         !  Advection scheme (Prather)
-   ln_adv_UMx       = .false.          !  Advection scheme (Ultimate-Macho)
+   ln_adv_Pra       = .true.          !  Advection scheme (Prather)
+   ln_adv_UMx       = .false.         !  Advection scheme (Ultimate-Macho)
       nn_UMx        =   5             !     order of the scheme for UMx (1-5 ; 20=centered 2nd order)
 /
@@ -123 +123 @@
    ln_cndflx        = .false.         !  Use conduction flux as surface boundary conditions (i.e. for Jules coupling)
       ln_cndemulate = .false.         !     emulate conduction flux (if not provided in the inputs)
+   nn_qtrice        = 0               !  Solar flux transmitted thru the surface scattering layer:
+                                      !     = 0  Grenfell and Maykut 1977 (depends on cloudiness and is 0 when there is snow) 
+                                      !     = 1  Lebrun 2019 (equals 0.3 anytime with different melting/dry snw conductivities)
 /
 !------------------------------------------------------------------------------
@@ -142 +145 @@
    rn_cnd_s         =   0.31          !  thermal conductivity of the snow (0.31 W/m/K, Maykut and Untersteiner, 1971)
                                       !     Obs: 0.1-0.5 (Lecomte et al, JAMES 2013)
-   rn_kappa_i       =   1.0           !  radiation attenuation coefficient in sea ice [1/m]
+   rn_kappa_i       =   1.0           !  radiation attenuation coefficient in sea ice                     [1/m]
+   rn_kappa_s       =  10.0           !  nn_qtrice = 0: radiation attenuation coefficient in snow         [1/m]
+   rn_kappa_smlt    =   7.0           !  nn_qtrice = 1: radiation attenuation coefficient in melting snow [1/m]
+   rn_kappa_sdry    =  10.0           !                 radiation attenuation coefficient in dry snow     [1/m]
 /
 !------------------------------------------------------------------------------