| Description | Notation | Value | Units | Comment |
| Air density |  |
1.3 | kg m-3 | |
| Snow density |  |
300.0 | kg m-3 | |
| Ice density |  |
900.0 | kg m-3 | |
| Ocean density |  |
1025.0 | kg m-3 | |
| Coriolis parameter | f | s-1 | Function of latitude only | |
| Sea level air pressure | pa | Pa | ||
| Geostrophic wind |  |
m s-1 | ||
| Surface wind |  |
m s-1 | ||
| Sea-ice velocity |  |
m s-1 | ||
| Ocean surface velocity |  |
m s-1 | ||
| Surface stress air-ocean |  |
Pa | ||
| Drag coefficient air-ocean | Dao | (1.10 + 0.04 Ws) x 10-3 | Dependent on surface wind speed | |
| Surface stress air-ice |  |
Pa | ||
| Drag coefficient air-ice | Dai | (1.10 + 0.04 Ws) x 10-3 | Dependent on surface wind speed | |
| Surface stress ice-ocean |  |
Pa | ||
| Drag coefficient ice-ocean | Dio | 5.50 x 10-3 | ||
| Air temperature | Ta |  C |
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| Surface temperature ice (snow) | Tis | C |
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| Melting point ice (snow) surface | Tmis | 0.0 | C |
|
| Surface temperature ocean | Tos | C |
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| Freezing point temperature ocean surface | Tfos | C |
||
| Surface salinity ocean | Sos | psu | ||
| Ice salinity | Si | 4 | psu | |
| Surface salinity restoring time |  |
180 | days | |
| Coefficient of salinity-dependent freezing point | mf | -0.0575 | C/psu |
|
| Relative humidity | rh | 0.9 | Regional models only | |
| Vapor pressure in air | ea | Pa | ||
| Saturation vapor pressure over ocean surface | eos | Pa | ||
| Saturation vapor pressure over ice (snow) surface | eis | Pa | ||
| Specific humidity in air | qa | kg kg-1 | ||
| Specific humidity at ocean surface | qos | kg kg-1 | ||
| Specific humidity at ice (snow) surface | qis | kg kg-1 | ||
| Evaporation over ocean surface | Eos | m s-1 | Evaluated at ocean equivalent density | |
| Sublimation over ice (snow) surface | Eis |
m s-1 | Evaluated at ocean equivalent density | |
| Precipitation | P | m s-1 | Evaluated at ocean equivalent density | |
| Cloud cover fraction | cf | [0..1] | ||
| Steffan-Boltzmann constant |  |
5.67 x 10-8 | W m-2 K-4 | |
| Specific heat of air | cpa | 1004 | J kg-1 K-1 | |
| Specific heat of ice (snow) | cpi | 2090 | J kg-1 K-1 | |
| Specific heat of ocean | cpo | 4190 | J kg-1 K-1 | |
| Latent heat of fusion | Lf | 0.334 x 106 | J kg-1 | |
| Latent heat of vaporization | Lv | 2.501 x 106 | J kg-1 | |
| Latent heat of sublimation | Ls | 2.835 x 106 | J kg-1 | |
| Exchange coefficient of sensible heat | Csh | 1.20 x 10-3 | ||
| Exchange coefficient of latent heat | Clh | 1.50 x 10-3 | ||
| Albedo of ice |  |
0.60 | ||
| Albedo of melting ice |  |
0.50 | ||
| Albedo of snow |  |
0.80 | ||
| Albedo of melting snow |  |
0.70 | ||
| Albedo of ocean |  |
0.10 | ||
| Emissivity of snow |  |
0.99 | ||
| Emissivity of ice |  |
0.97 | ||
| Emissivity of ocean |  |
0.97 | ||
| Solar constant |  |
1353 | W m-2 | |
| Sensible heat flux |  |
W m-2 | ||
| Latent heat flux |  |
W m-2 | ||
| Shortwave radiation |  |
W m-2 | ||
| Longwave radiation |  |
W m-2 | ||
| Day of Year |  |
[1..365] | ||
| Hour of Day |  |
[0..23] | ||
| Solar Zenith Angle |  |
 |
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| Hour Angle |  |
 |
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. © David Holland. All Rights Reserved. |
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