Changeset 14302 for NEMO/branches/UKMO/NEMO_4.0.4_GO8_package/cfgs/SHARED

Timestamp:

2021-01-14T17:21:39+01:00 (3 years ago)

Author:

edblockley

Message:

Porting topographic melt-ponds from Martin's branch branches/2020/SI3-05_MeltPonds_topo@14301

Location:

NEMO/branches/UKMO/NEMO_4.0.4_GO8_package/cfgs/SHARED

Files:

• field_def_nemo-ice.xml (modified) (2 diffs)
• namelist_ice_ref (modified) (2 diffs)

NEMO/branches/UKMO/NEMO_4.0.4_GO8_package/cfgs/SHARED/field_def_nemo-ice.xml

@@ -51 +51 @@
           <field id="icehlid"      long_name="melt pond lid depth"                                     standard_name="sea_ice_meltpondlid_depth"                 unit="m" /> 
           <field id="icevlid"      long_name="melt pond lid volume"                                    standard_name="sea_ice_meltpondlid_volume"                unit="m" /> 
+     
+     <field id="dvpn_mlt"     long_name="pond volume tendency due to surface melt"                standard_name="sea_ice_pondvolume_tendency_melt"          unit="cm/d" /> 
+     <field id="dvpn_lid"     long_name="pond volume tendency due to exchanges with lid"          standard_name="sea_ice_pondvolume_tendency_lids"          unit="cm/d" /> 
+     <field id="dvpn_rnf"     long_name="pond volume tendency due to runoff"                      standard_name="sea_ice_pondvolume_tendency_runoff"        unit="cm/d" /> 
+     <field id="dvpn_drn"     long_name="pond volume tendency due to drainage"                    standard_name="sea_ice_pondvolume_tendency_drainage"      unit="cm/d" /> 
      
      <!-- heat -->
@@ -284 +289 @@
           <field id="snwtemp_cat"  long_name="Snow temperature per category"                     unit="degC"    detect_missing_value="true" />
           <field id="icettop_cat"  long_name="Ice/snow surface temperature per category"         unit="degC"    detect_missing_value="true" />
-          <field id="iceapnd_cat"  long_name="Ice melt pond concentration per category"          unit=""        /> 
+          <field id="icevpnd_cat"  long_name="Ice melt pond volume per grid area per category"   unit="m"       /> 
+          <field id="iceapnd_cat"  long_name="Ice melt pond grid fraction"                       unit=""        /> 
           <field id="icehpnd_cat"  long_name="Ice melt pond thickness per category"              unit="m"       detect_missing_value="true" /> 
           <field id="icehlid_cat"  long_name="Ice melt pond lid thickness per category"          unit="m"       detect_missing_value="true" /> 
-          <field id="iceafpnd_cat" long_name="Ice melt pond fraction per category"               unit=""        /> 
+          <field id="iceafpnd_cat" long_name="Ice melt pond ice fraction per category"           unit=""        /> 
           <field id="iceaepnd_cat" long_name="Ice melt pond effective fraction per category"     unit=""        /> 
           <field id="icemask_cat"  long_name="Fraction of time step with sea ice (per category)" unit=""        />

NEMO/branches/UKMO/NEMO_4.0.4_GO8_package/cfgs/SHARED/namelist_ice_ref

@@ -195 +195 @@
 !------------------------------------------------------------------------------
    ln_pnd            = .true.         !  activate melt ponds or not
-      ln_pnd_LEV     = .true.         !  level ice melt ponds (from Flocco et al 2007,2010 & Holland et al 2012)
-         rn_apnd_min =   0.15         !     minimum ice fraction that contributes to melt pond. range: 0.0 -- 0.15 ??
-         rn_apnd_max =   0.85         !     maximum ice fraction that contributes to melt pond. range: 0.7 -- 0.85 ??
+      ln_pnd_TOPO    = .true.         !  topographic melt ponds 
+      ln_pnd_LEV     = .false.        !  level ice melt ponds 
+         rn_apnd_min =   0.15         !     minimum meltwater fraction contributing to pond growth (TOPO and LEV)
+         rn_apnd_max =   0.85         !     maximum meltwater fraction contributing to pond growth (TOPO and LEV)
          rn_pnd_flush=   0.01         !     pond flushing efficiency (tuning parameter) (LEV)
       ln_pnd_CST     = .false.        !  constant  melt ponds
          rn_apnd     =   0.2          !     prescribed pond fraction, at Tsu=0 degC
          rn_hpnd     =   0.05         !     prescribed pond depth,    at Tsu=0 degC
-      ln_pnd_lids    = .true.         !  frozen lids on top of the ponds (only for ln_pnd_LEV)
+      ln_pnd_lids    = .false.        !  frozen lids on top of the ponds (only for ln_pnd_LEV)
       ln_pnd_alb     = .true.         !  effect of melt ponds on ice albedo
 /
@@ -227 +228 @@
    rn_tms_ini_n     = 270.            !  initial snw temperature     (K), North
    rn_tms_ini_s     = 270.            !        "            "             South
-   rn_apd_ini_n     =   0.2           !  initial pond fraction       (-), North
+   rn_apd_ini_n     =   0.0           !  initial pond fraction       (-), North
    rn_apd_ini_s     =   0.2           !        "            "             South
-   rn_hpd_ini_n     =   0.05          !  initial pond depth          (m), North
+   rn_hpd_ini_n     =   0.00          !  initial pond depth          (m), North
    rn_hpd_ini_s     =   0.05          !        "            "             South
    rn_hld_ini_n     =   0.0           !  initial pond lid depth      (m), North