Article
Article
Snow surveying
Article By:
Goodison, Barry E. Hydrometeorological Impact and Development Section, Canadian Climate Centre, Atmospheric Environment Service, Downsview, Ontario, Canada.
Last reviewed:December 2019
DOI:https://doi.org/10.1036/1097-8542.630100
A technique for providing an inventory of the total amount of snow covering a drainage basin or a given region. Most of the usable water in western North America originates as mountain snowfall that accumulates during the winter and spring and appears several months later as streamflow. Snow surveys were established to provide an estimate of the snow water equivalent (that is, the depth of water produced from melting the snow) for use in predicting the volume of spring runoff. They are also extremely useful for flood forecasting, reservoir regulation, determining hydropower requirements, municipal and irrigation water supplies, agricultural productivity, wildlife survival and building design and for assessing transportation and recreation conditions.
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