Predicting deposition of blowing snow in trenches from particle trajectories

Submitted by Armida on Fri, 02/15/2013 - 15:24
TitlePredicting deposition of blowing snow in trenches from particle trajectories
Publication TypeConference Proceedings
Year of Conference1981
AuthorsSchmidt, R. A., and Randolph K. L.
Conference Name49th Annual Western Snow Conference
Series TitleProceedings of the 49th Annual Western Snow Conference
Date PublishedApril 1981
PublisherWestern Snow Conference
Conference LocationSt. George, Utah
KeywordsBlowing snow, Contour trenches, Snow drifts, Snow trapping efficiency
Abstract

The paper presents a computational procedure that estimates the location of deposition behind backward-facing steps, assuming blowing snow particles have streamwise velocities equal to the wind speed and vertical velocities equal to partical fall velocities. Results suggest that the efficiency with which snow is trapped in contour trenches is independent of height, for the range 1 to 2 m. Predicted efficiency is much smaller if the windward slope is uphill approaching the trench.
URLsites/westernsnowconference.org/PDFs/1981Schmidt.pdf