Snowfall event analysis at a remote northern alpine icefield

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dc.contributor.author Courtin, Eric
dc.date.accessioned 2018-05-31T18:20:11Z
dc.date.available 2018-05-31T18:20:11Z
dc.date.copyright 2018 en_US
dc.date.issued 2018-05-31
dc.identifier.uri https://dspace.library.uvic.ca//handle/1828/9418
dc.description.abstract Data are presented from an automatic weather station on the Brintnell-Bologna Icefield that operated from August 2014 to August 2016 in Nahanni National Park Reserve. This location is notable for being the northernmost mass balance alpine study location of the federal government’s glaciology program (NRCan/GSC). The link between atmospheric forcing at the synoptic scale and response at the glacier surface has been shown to be strongly dependent on continentality and latitude. In this region, however, many aspects of the physical processes controlling the interaction between atmospheric forcing and snowpack response are virtually unknown, especially at the daily to hourly timescale. The character of snowfalls during the accumulation seasons for this icefield are investigated using high resolution time series from two acoustic snow depth sensors and other relevant meteorological parameters. It is found that the most drastic changes in snow depth occur from infrequent large snowfalls. Using an adaption of an Environment Canada snow depth algorithm, snowfall events are identified and their timing is quantified based on a system of thresholds, running averages and ratios between the snow depth sensors. Synoptic conditions are examined using meteorological reanalysis data and trajectory analysis to determine the moisture origin and pathway. en_US
dc.language English eng
dc.language.iso en en_US
dc.rights Available to the World Wide Web en_US
dc.subject Climatology en_US
dc.subject Synoptic Meteorology en_US
dc.subject Snowfall Event en_US
dc.subject Automatic Weather Station en_US
dc.subject Snowfall Regime en_US
dc.subject Canadian North en_US
dc.subject Alpine en_US
dc.title Snowfall event analysis at a remote northern alpine icefield en_US
dc.type Thesis en_US
dc.contributor.supervisor Atkinson, David E.
dc.contributor.supervisor Demuth, Michael
dc.degree.department Department of Geography en_US
dc.degree.level Master of Science M.Sc. en_US
dc.description.scholarlevel Graduate en_US

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