VARAIBLE.TXT      Description of Climate Variables     2001/04/12

ALBP:  Planetary albedo (%) calculated as:
       1 - (absorbed solar radiation of planet)/
           (incident solar radiation of planet).
ALBS:  Surface albedo (%) calculated as:
       1 - (absorbed solar radiation at surface)/
           (incident solar radiation at surface).

CLDH:  High cloud cover (%) or percentage of time that there is a level
       in layers 7, 8 or 9 such that the cloud optical depth above this
       level is equal to 1.
CLDL:  Low cloud cover (%) or percentage of time that there is a level
       in layers 1, 2, 3 or 4 such that the cloud optical depth above
       this level is equal to 1.
CLDT:  Total cloud cover (%) or percentage of time that the Model's
       total cloud optical depth is at least 1.
CLDOD: Vertically integrated cloud optical depth.

EPRE:  Energy of precipitation (W/mē) or latent energy of snow
       calculated as:
       - [latent energy of melting (J/kg)]*[snow fall rate (kg/s*mē)].
       In future simulations, the sensible heat of the condensate will
       be included into EPRE.

EVAP:  Composite evaporation (mm/day) or area weighted evaporation from
       each surface type.

HOCT:  Converged ocean heat transport (W/mē).
HS:    Downward net heat flux at surface (W/mē) calculated as:
       absorbed solar radiation at surface - emitted thermal radiation
       at surface - sensible heat flux - latent heat flux
       + energy of precipitation.
HSEN:  Sensible heat flux (W/mē) from surface to atmosphere.

MLAK:  Liquid lake mass above the sill depth (kg/mē).
MOSI:  Vertically integrated ocean mass plus sea ice mass (10ģ kg/mē).
MSALT: Vertically integrated ocean salt (10ģ kg/mē).
MSI:   Sea ice mass (kg/mē).
MSNOW: Snow mass (kg/mē).
MWV:   Vertically integrated water vapor mass (kg/mē).

OIC:   Horizontal ocean ice cover (%).  Over continental grid boxes,
       it is the horizontal ratio of the lake ice cover over the lake.

PREC:  Precipitation (mm/day).
PRECON:Convective precipitation (mm/day).
PRECSD:Standard deviation of daily precipitation (mm/day) calculated as:
       {[sum over days (daily precipitation - monthly precipitation)ē] /
        (number of days in month)}^.5 .

PS:    Surface pressure (mb) at bottom of atmosphere.
PSL:   Sea level pressure (mb-1000) calculated from surface pressure
       and surface air temperature using the moist adiabatic lapse rate
       of .0065 (C/m).
PSSD:  Standard deviation of daily surface pressure (mb) calculated as:
       {[sum over days (daily surface pressure
         - monthly surface pressure)ē] / (number of days in month)}^.5 .

Q200:  Specific humidity (g/kg) at 200 mb.
Q500:  Specific humidity (g/kg) at 500 mb.
Q850:  Specific humidity (g/kg) at 850 mb.
QS:    Surface air specific humidity (g/kg).

RIVERM:River mass (10^5 kg/s) leaving each continental grid box.

RSAP:  Solar radiation absorbed by planet (W/mē).
RSAS:  Solar radiation absorbed by surface (W/mē).
RSIS:  Solar radiation incident on surface (W/mē).

RTDS:  Thermal radiation downward onto surface (W/mē).
RTEP:  Thermal radiation emitted by planet (W/mē).
RTES:  Net thermal radiation emitted by surface (W/mē) calculated as:
       upward thermal radiation at surface
       - downward thermal radiation at surface.
RTUS:  Thermal radiation upward from surface (W/mē) calculated in the
       Model as: STBO*TKG^4.  The Stefan - Boltzmann constant is:
       STBO = 5.67032*10^-8.

RUNS:  Surface source runoff (mm/day) over ground.
RUNU:  Underground source runoff (mm/day) over ground.

SAGI:  Snow accumulation minus melting (kg/year*mē) over glacial ice
       multiplied times glacial ice fraction of grid box.

SOILM: Vertically integrated soil moisture over ground (cm).

SNOWC: Composite snow cover (%) or area weighted snow cover from each
       surface type.

SOS:   Ocean surface salinity (per mil).

T200:  Air temperature (°K) at 200 mb.
T500:  Air temperature (°K) at 500 mb.
T850:  Air temperature (°K) at 850 mb.

TG:    Ground temperature (°C).  Over ocean grid cells, it is the
       composite area weighted temperature of upper most ocean layer
       and upper most sea ice layer.  Over continental grid cells,
       it is the composite area weighted temperature of upper most
       ground temperature, upper most glacial ice temperature, open
       lake temperature, and upper most lake ice temperature.

TAS:   Surface air temperature (°C).
TASMIN:Daily minimum surface air temperature (°C)
TASMAX:Daily maximum surface air temperature (°C)
TASSD: Standard deviation of daily surface air temperature (°C)
       calculated as:
       {[sum over days (daily surface air temperature - monthly
         surface air temperature)ē] / (number of days in month)}^.5

TOS:   Ocean surface temperature (°C) or temperature of the Ocean
       Model's upper most layer which is about 12 m thick.
       Defined only over ocean grid cells.

UMO:   Vertically integrated liquid ocean mass flux (10^6 kg/s) leaving
       a grid box along its eastern edge (negative if entering).
VMO:   Vertically integrated liquid ocean mass flux (10^6 kg/s) leaving
       a grid box along its northern edge (negative if entering).

UMSI:  Sea ice mass flux (10^6 kg/s) leaving a grid box along its
       eastern edge (negative if entering).
VMSI:  Sea ice mass flux (10^6 kg/s) leaving a grid box along its
       northern edge (negative if entering).

UMWV:  Vertically integrated water vapor mass flux (10^6 kg/s) leaving
       a grid box along its eastern edge (negative if entering).
VMWV:  Vertically integrated water vapor mass flux (10^6 kg/s) leaving
       a grid box along its northern edge (negative if entering).

WS:    Surface wind speed (m/s).

Z200:  Geopotential height (m) at 200 mb.
Z500:  Geopotential height (m) at 500 mb.
Z850:  Geopotential height (m) at 850 mb.

ZOS:   Ocean surface height (cm) above global mean sea level.