Ignore:
Timestamp:
2018-11-15T10:46:57+01:00 (3 years ago)
Author:
clem
Message:

add the parameterization of landfast ice from Lemieux2015 and 2016 with the addition of isotropic tensile strength

Location:
NEMO/branches/2018/dev_r9947_SI3_advection/cfgs/SHARED
Files:
2 edited

Legend:

Unmodified
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  • NEMO/branches/2018/dev_r9947_SI3_advection/cfgs/SHARED/field_def_nemo-ice.xml

    r9943 r10312  
    2929          <field id="icemask15"    long_name="Ice mask (0 if ice conc. lower than 15%, 1 otherwise)"   standard_name="sea_ice_mask15"                            unit="" /> 
    3030     <field id="icepres"      long_name="Fraction of time steps with sea ice"                     standard_name="sea_ice_time_fraction"                     unit="" /> 
    31       
     31          <field id="fasticepres"  long_name="Fraction of time steps with landfast ice"                standard_name="fast_ice_time_fraction"                    unit="" /> 
     32  
    3233     <!-- general fields --> 
    3334          <field id="icemass"      long_name="Sea-ice mass per area"                                   standard_name="sea_ice_amount"                            unit="kg/m2"/> 
  • NEMO/branches/2018/dev_r9947_SI3_advection/cfgs/SHARED/namelist_ice_ref

    r9801 r10312  
    5252   ln_dynRHGADV     = .false.         !  dyn.: no ridge/raft & no corrections  (rheology + advection) 
    5353   ln_dynADV        = .false.         !  dyn.: only advection w prescribed vel.(rn_uvice + advection) 
    54       rn_uice       =   0.00001       !        prescribed ice u-velocity 
    55       rn_vice       =   0.            !        prescribed ice v-velocity 
    56    rn_ishlat        =   2.            !  free slip (0) ; partial slip (0-2) ; no slip (2) ; strong slip (>2) 
    57    ln_landfast      = .false.         !  landfast ice parameterization (T or F)                            
    58       rn_gamma      =   0.15          !     fraction of ocean depth that ice must reach to initiate landfast 
    59                                       !        recommended range: [0.1 ; 0.25] 
    60       rn_icebfr     =  10.            !     maximum bottom stress per unit area of contact [N/m2]                  
    61                                       !        a very large value ensures ice velocity=0 even with a small contact area 
    62                                       !        recommended range: ?? (should be greater than atm-ice stress => >0.1 N/m2) 
    63       rn_lfrelax    =   1.e-5         !     relaxation time scale to reach static friction [s-1] 
     54      rn_uice       =   0.5           !        prescribed ice u-velocity 
     55      rn_vice       =   0.5           !        prescribed ice v-velocity 
     56   rn_ishlat        =   2.            !  lbc : free slip (0) ; partial slip (0-2) ; no slip (2) ; strong slip (>2) 
     57   ln_landfast_L16  = .false.         !  landfast: parameterization from Lemieux 2016 
     58   ln_landfast_home = .false.         !  landfast: parameterization from "home made" 
     59      rn_depfra     =   0.125         !        fraction of ocean depth that ice must reach to initiate landfast 
     60                                      !          recommended range: [0.1 ; 0.25] - L16=0.125 - home=0.15 
     61      rn_icebfr     =  15.            !        ln_landfast_L16:  maximum bottom stress per unit volume [N/m3] 
     62                                      !        ln_landfast_home: maximum bottom stress per unit area of contact [N/m2] 
     63                                      !          recommended range: ?? L16=15 - home=10 
     64      rn_lfrelax    =   1.e-5         !        relaxation time scale to reach static friction [s-1] 
     65      rn_tensile    =   0.2           !        isotropic tensile strength 
    6466/ 
    6567!------------------------------------------------------------------------------ 
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