Densities of prairie snowpacks

TitleDensities of prairie snowpacks
Publication TypeConference Proceedings
Year of Conference1970
AuthorsGray, Don M., Norum D. L., and Dyck G. E.
Conference Name38th Annual Western Snow Conference
Series TitleProceedings of the 38th Annual Western Snow Conference
Date PublishedApril 1970
PublisherWestern Snow Conference
Conference LocationVictoria, British Columbia
KeywordsPrecipitation gage, Shield, Snow density, Snow measurements

The paper is concerned with the physical measurements of the snow water equivalent of shallow prairie snowpacks under flat, highly exposed cold conditions. Consideration is given to the relationship between ‘ground catch’ and measurements recorded by shielded automatic precipitation gauges. Physical measurement of shallow packs, their distribution and retention by ground sampling techniques are discussed. Time changes in density of freshly fallen snow caused by drifting and seasonal variation in density of shallow snowpacks are evaluated. The performance of twin-probe gamma nuclear system for detecting abrupt physical changes (greater than ½ inch) in snow density within a deep profile at scanning rates up to 15 inches per minute under cold weather operation is evaluated.