| DOI: | 10.1002/2013GL058138
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| 论文题名: | Satellite-based estimates of Antarctic surface meltwater fluxes |
| 作者: | Trusel L.D.; Frey K.E.; Das S.B.; Munneke P.K.; Van Den Broeke M.R.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8348
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| EISSN: | 1944-8079
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| 出版年: | 2013
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| 卷: | 40, 期:23 | | 起始页码: | 6148
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| 结束页码: | 6153
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| 语种: | 英语
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| 英文关键词: | Antarctica
; ice shelves
; remote sensing
; surface melt
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| Scopus关键词: | Antarctica
; Empirical relationships
; Ground-based observations
; Ice shelves
; Radar backscatter
; Regional climate modeling
; Surface meltwater
; Surface meltwater production
; Climate models
; Estimation
; Remote sensing
; Satellites
; Ice
; backscatter
; climate modeling
; cryosphere
; energy balance
; ground-based measurement
; ice shelf
; melting
; meltwater
; QuikSCAT
; radar
; regional climate
; satellite imagery
; Antarctica
; Larsen Ice Shelf
; West Antarctica
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| 英文摘要: | This study generates novel satellite-derived estimates of Antarctic-wide annual (1999-2009) surface meltwater production using an empirical relationship between radar backscatter from the QuikSCAT (QSCAT) satellite and melt calculated from in situ energy balance observations. The resulting QSCAT-derived melt fluxes significantly agree with output from the regional climate model RACMO2.1 and with independent ground-based observations. The high-resolution (4.45 km) QSCAT-based melt fluxes uniquely detect interannually persistent and intense melt (>400 mm water equivalent (w.e.) year-1) on interior Larsen C Ice Shelf that is not simulated by RACMO2.1. This supports a growing understanding of the importance of a föhn effect in this region and quantifies the resulting locally enhanced melting that is spatially consistent with recently observed Larsen C thinning. These new results highlight important cryosphere-climate interactions and processes that are presently not fully captured by the coarser-resolution (27 km) regional climate model. Key Points Novel satellite-based estimates of Antarctic surface meltwater production Broad agreement among satellite, ground, and climate model melt results High melt on inner Larsen C Ice Shelf likely results from a föhn effect ©2013. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84888776230&doi=10.1002%2f2013GL058138&partnerID=40&md5=73c85b57bae53065597cd486a3a1dd72
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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/5612
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Graduate School of Geography, Clark University, 950 Main Street, Worcester, MA 01610, United States
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| Recommended Citation: | |
Trusel L.D.,Frey K.E.,Das S.B.,et al. Satellite-based estimates of Antarctic surface meltwater fluxes[J]. Geophysical Research Letters,2013-01-01,40(23).
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