GLACIOLOGICAL STUDIES AT RAE GLACIER, CANADIAN ROCKY MOUNTAINS
| Autor: | Dan J. Smith, Melinda M. Brugman, Carolyn P. Lawby, Colin P. Laroque |
|---|---|
| Rok vydání: | 1994 |
| Předmět: |
Glacier ice accumulation
Atmospheric Science geography geography.geographical_feature_category Ice stream Tidewater glacier cycle Accumulation zone Glacier Cirque glacier Glacier morphology Glacier mass balance Earth and Planetary Sciences (miscellaneous) General Earth and Planetary Sciences Geomorphology Geology General Environmental Science |
| Zdroj: | Physical Geography. 15:425-441 |
| ISSN: | 1930-0557 0272-3646 |
| DOI: | 10.1080/02723646.1994.10642527 |
| Popis: | Rae Glacier is a small cirque glacier located in the front ranges of the Canadian Rocky Mountains. In 1990 and 1991 field research was completed to describe the physical glaciology of Rae Glacier and to characterize historical glaciological trends at the site. Ablation and surface movement rates were measured using a network of stakes drilled into the glacier and radio-echo sounding was used to describe local ice depths. Rae Glacier has experienced a significant loss in size and mass during the historical period, owing to a lengthy interval of negative mass-balance conditions. The glacier has decreased in surface area by over 50% and now contains less than 24% of the ice it did at the end of the last century. Surface-ice velocity varied between 1.4 and 5.4 m from 1990 to 1991. Rates of ice ablation proved to be highly variable, with steeper areas showing up to 50% more ablation. Combined with data on the emergent flow component of the glacier, the ablation data suggest that the glacier presently is unable... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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