The second namelist in the setup script controls what variables are written to the history file. To remove a field from this list, add the name of the character variable associated with that field to the &icefields_nml namelist in user_nl_cice and assign it a value of 'xxxxx'. For example, to remove ice thickness and snow cover from the history file, add
f_hi = 'xxxxx' f_hs = 'xxxxx'
to the namelist. Note that the default configuration (set internally in the code) is to have a standard set of fields on the first, monthly-mean stream. If you wish to change the first stream to something other than monthly, then you also need to make sure to add the f_ specifications to add items to the first stream at the new frequency. It is highly recommended that you use the extra streams for different frequencies and leave the first as monthly-mean.
| Field | Description | Units |
| time | model time | days |
| time_bounds | boundaries for time-averaging interval | days |
| TLON | T grid center longitude | degrees |
| TLAT | T grid center latitude | degrees |
| ULON | U grid center longitude | degrees |
| ULAT | U grid center latitude | degrees |
| tmask | ocean grid mask (0=land, 1=ocean) | |
| tarea | T grid cell area | m2
|
| uarea | U grid cell area | m2
|
| dxt | T cell width through middle | m |
| dyt | T cell height through middle | m |
| dxu | U cell width through middle | m |
| dyu | U cell height through middle | m |
| HTN | T cell width North side | m |
| HTE | T cell width East side | m |
| ANGLET | angle grid makes with latitude line on T grid | radians |
| ANGLE | angle grid makes with latitude line on U grid | radians |
| ice_present | fraction of time-averaging interval that any ice is present |
| Logical Variable | Description | Units |
|---|---|---|
| f_hi | grid box mean ice thickness | m |
| f_hs | grid box mean snow thickness | m |
| f_fs | grid box mean snow fraction | % |
| f_Tsfc | snow/ice surface temperature | C |
| f_aice | ice concentration (aggregate) | % |
| f_aice1 | ice concentration (category 1) | % |
| f_aice2 | ice concentration (category 2) | % |
| f_aice3 | ice concentration (category 3) | % |
| f_aice4 | ice concentration (category 4) | % |
| f_aice5 | ice concentration (category 5) | % |
| f_aice6 | ice concentration (category 6) | % |
| f_aice7 | ice concentration (category 7) | % |
| f_aice8 | ice concentration (category 8) | % |
| f_aice9 | ice concentration (category 9) | % |
| f_aice10 | ice concentration (category 10) | % |
| f_vice1 | ice volume (category 1) | m |
| f_vice2 | ice volume (category 2) | m |
| f_vice3 | ice volume (category 3) | m |
| f_vice4 | ice volume (category 4) | m |
| f_vice5 | ice volume (category 5) | m |
| f_vice6 | ice volume (category 6) | m |
| f_vice7 | ice volume (category 7) | m |
| f_vice8 | ice volume (category 8) | m |
| f_vice9 | ice volume (category 9) | m |
| f_vice10 | ice volume (category 10) | m |
| f_uvel | zonal ice velocity | cm s-1
|
| f_vvel | meridional ice velocity | cm s-1
|
| f_fswdn | downwelling solar flux | W m-2
|
| f_flwdn | downwelling longwave flux | W m-2
|
| f_snow | snow fall rate received from coupler | cm day-1
|
| f_snow_ai | snow fall rate on ice cover | cm day-1
|
| f_rain | rain fall rate received from coupler | cm day-1
|
| f_rain_ai | rain fall rate on ice cover | cm day-1
|
| f_sst | sea surface temperature | C |
| f_sss | sea surface salinity | g kg-1
|
| f_uocn | zonal ocean current | cm s-1
|
| f_vocn | meridional ocean current | cm s-1
|
| f_frzmlt | freeze/melt potential | W m-2
|
| f_fswabs | absorbed solar flux sent to coupler | W m-2
|
| f_fswabs_ai | absorbed solar flux in snow/ocn/ice | W m-2
|
| f_aldvr | visible direct albedo | % |
| f_aldvi | near-infrared direct albedo | % |
| f_flat | latent heat flux sent to coupler | W m-2
|
| f_flat_ai | ice/atm latent heat flux | W m-2
|
| f_fsens | sensible heat flux sent to coupler | W m-2
|
| f_fsens_ai | ice/atm sensible heat flux | W m-2
|
| f_flwout | outgoing longwave flux sent to coupler | W m-2
|
| f_flwout_ai | ice/atm outgoing longwave flux | W m-2
|
| f_evap | evaporative water flux sent to coupler | cm day-1
|
| f_evap_ai | ice/atm evaporative water flux | cm day-1
|
| f_Tref | 2 m reference temperature | C |
| f_Qref | 2 m reference specific humidity | g/kg |
| f_congel | basal ice growth | cm day-1
|
| f_frazil | frazil ice growth | cm day-1
|
| f_snoice | snow-ice formation | cm day-1
|
| f_meltb | basal ice melt | cm day-1
|
| f_meltt | surface ice melt | cm day-1
|
| f_meltl | lateral ice melt | cm day-1
|
| f_fresh | ice/ocn fresh water flux sent to coupler | cm day-1
|
| f_fresh_ai | ice/ocn fresh water flux | cm day-1
|
| f_fsalt | ice to ocn salt flux sent to coupler | kg m-2
|
| f_fsalt_ai | ice to ocn salt flux | kg m-2
|
| f_fhnet | ice/ocn net heat flux sent to coupler | W m-2
|
| f_fhnet_ai | ice/ocn net heat flux | W m-2
|
| f_fswthru | SW transmitted through ice to ocean sent to coupler | W m-2
|
| f_fswthru_ai | SW transmitted through ice to ocean | W m-2
|
| f_strairx | zonal atm/ice stress | N m-2
|
| f_strairy | meridional atm/ice stress | N m-2
|
| f_strtltx | zonal sea surface tilt | m m-1
|
| f_strtlty | meridional sea surface tilt | m m-1
|
| f_strcorx | zonal coriolis stress | N m-2
|
| f_strcory | meridional coriolis stress | N m-2
|
| f_strocnx | zonal ocean/ice stress | N m-2
|
| f_strocny | meridional ocean/ice stress | N m-2
|
| f_strintx | zonal internal ice stress | N m-2
|
| f_strinty | meridional internal ice stress | N m-2
|
| f_strength | compressive ice strength | N m-1
|
| f_divu | velocity divergence | % day-1
|
| f_shear | strain rate | % day-1
|
| f_opening | lead opening rate | % day-1
|
| f_sig1 | normalized principal stress component | |
| f_sig2 | normalized principal stress component | |
| f_daidtt | area tendency due to thermodynamics | % day-1
|
| f_daidtd | area tendency due to dynamics | % day-1
|
| f_dvidtt | ice volume tendency due to thermo. | cm day-1
|
| f_dvidtd | ice volume tendency due to dynamics | cm day-1
|
| f_mlt_onset | melt onset date | |
| f_frz_onset | freeze onset date | |