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Layer and crust development in a Central Sierra Nevada snowpack: some preliminary observations
Submitted by Armida on Fri, 02/15/2013 - 15:25
|Layer and crust development in a Central Sierra Nevada snowpack: some preliminary observations
|Year of Conference
|Berg, N. H.
|50th Annual Western Snow Conference
|Proceedings of the 50th Annual Western Snow Conference
|Western Snow Conference
|Crusts, Ice layers, Snow hydrology, Snow stratigraphy
Snow surface crusts and subsurface 'ice' layers densify exponentially. Crust thicknesses range form 4 to 10 cm; layer thicknesses are greater, ranging from 6 to 28 cm. Crusts exist on the majority of non-snowfall days and individually persist from 2 to 20 days. Layers may persist up to 50 days. All layers formed from burial of surface crusts under new snowfall. Pit studies show that layers can be discontinuous and that it is inappropriate to extrapolate point estimates of internal layer properties to wider areas.