http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Airborne gamma radiation snow water equivalent and soil moisture measurements and satellite areal extent of snow cover measurements
Airborne and satellite snow cover measurements: a user's guide, version 3.0
Cover title: Airborne and satellite snow cover measurements: a user's guide, version 3.0.
At head of title: National Remote Sensing Hydrology Program.