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DOI | 10.1080/15230430.2019.1582269 |
Debris properties and mass-balance impacts on adjacent debris-covered glaciers, Mount Rainier, USA | |
Moore, Peter L.1; Nelson, Leah I.2,4; Groth, Theresa M. D.3 | |
发表日期 | 2019 |
ISSN | 1523-0430 |
EISSN | 1938-4246 |
卷号 | 51期号:1页码:70-83 |
英文摘要 | The north and east slopes of Mount Rainier, Washington, are host to three of the largest glaciers in the contiguous United States: Carbon Glacier, Winthrop Glacier, and Emmons Glacier. Each has an extensive blanket of supraglacial debris on its terminus, but recent work indicates that each has responded to late twentieth-and early twenty-first-century climate changes in a different way. While Carbon Glacier has thinned and retreated since 1970, Winthrop Glacier has remained steady and Emmons Glacier has thickened and advanced. There are several possible climatic and dynamic factors that can account for some of these disparities, but differences in supraglacial debris properties and distribution have not been systematically evaluated. We combine field measurements and satellite remote sensing analysis from a 10-day period in the 2014 melt season to estimate both the debris thickness distribution and key debris thermal properties on Emmons Glacier. A simplified energy-balance model was then used with debris surface temperatures derived from Landsat 8 thermal infrared bands to estimate the distribution of debris across all three debris-covered termini. The results suggest that differences in summer balance among these glaciers can be partly explained by differences in the thermal resistance of their debris mantles. |
WOS研究方向 | Environmental Sciences & Ecology ; Physical Geography |
来源期刊 | ARCTIC ANTARCTIC AND ALPINE RESEARCH |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/90954 |
作者单位 | 1.Iowa State Univ, Dept Nat Resource Ecol & Management, 339 Sci 2, Ames, IA 50011 USA; 2.Carleton Coll, Geol Dept, Northfield, MN 55057 USA; 3.Iowa State Univ, Dept Geol & Atmospher Sci, Ames, IA USA; 4.Univ Minnesota, Dept Earth Sci, Minneapolis, MN USA |
推荐引用方式 GB/T 7714 | Moore, Peter L.,Nelson, Leah I.,Groth, Theresa M. D.. Debris properties and mass-balance impacts on adjacent debris-covered glaciers, Mount Rainier, USA[J],2019,51(1):70-83. |
APA | Moore, Peter L.,Nelson, Leah I.,&Groth, Theresa M. D..(2019).Debris properties and mass-balance impacts on adjacent debris-covered glaciers, Mount Rainier, USA.ARCTIC ANTARCTIC AND ALPINE RESEARCH,51(1),70-83. |
MLA | Moore, Peter L.,et al."Debris properties and mass-balance impacts on adjacent debris-covered glaciers, Mount Rainier, USA".ARCTIC ANTARCTIC AND ALPINE RESEARCH 51.1(2019):70-83. |
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