| DOI: | 10.1002/2014GL062661
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| 论文题名: | Ice motion of the Patagonian Icefields of South America: 1984-2014 |
| 作者: | Mouginot J.; Rignot E.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8919
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| EISSN: | 1944-8650
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| 出版年: | 2015
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| 卷: | 42, 期:5 | | 起始页码: | 1441
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| 结束页码: | 1449
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| 语种: | 英语
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| 英文关键词: | ice velocity
; ice velocity change
; icefields
; Patagonia
; remote sensing
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| Scopus关键词: | Catchments
; Continuous time systems
; Long Term Evolution (LTE)
; Remote sensing
; Synthetic aperture radar
; Velocity
; Continuous-time
; Flow direction
; High resolution
; Ice velocity
; Icefields
; Interannual variability
; Patagonia
; South America
; Ice
; flow field
; ice movement
; remote sensing
; spatiotemporal analysis
; synthetic aperture radar
; Patagonia
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| 英文摘要: | We present the first comprehensive high-resolution mosaic of ice velocity of the Northern (NPI) and Southern Patagonian Icefields (SPI), from multiple synthetic aperture radar and optical data collected between 1984 and 2014. The results reveal that many of the outlet glaciers extend far into the central ice plateaus, which implies that changes in ice dynamics propagate far inside the accumulation area. We report pronounced seasonal to interannual variability of ice motion on Pío XI and Jorge Montt, a doubling in speed of Jorge Montt, a major slow down of O'Higgins, significant fluctuations of Upsala and a deceleration of San Rafael, which illustrate the need for sustained, continuous time series of ice motion to understand the long-term evolution of the rapidly thinning icefields. The velocity product also resolves major ambiguities in glacier drainage in areas of relatively flat topography illustrating the need to combine topography and flow direction to map drainage basins. © 2015. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84925853081&doi=10.1002%2f2014GL062661&partnerID=40&md5=c3e77c1e7f9a4b16d40ec9b2b8159455
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/8535
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | Department of Earth System Science, University of California, Irvine, CA, United States
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| Recommended Citation: | |
Mouginot J.,Rignot E.. Ice motion of the Patagonian Icefields of South America: 1984-2014[J]. Geophysical Research Letters,2015-01-01,42(5).
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