DOI: 10.1002/2014GL060533
论文题名: InSAR detects increase in surface subsidence caused by an Arctic tundra fire
作者: Liu L. ; Jafarov E.E. ; Schaefer K.M. ; Jones B.M. ; Zebker H.A. ; Williams C.A. ; Rogan J. ; Zhang T.
刊名: Geophysical Research Letters
ISSN: 0094-10535
EISSN: 1944-10266
出版年: 2014
卷: 41, 期: 11 起始页码: 3906
结束页码: 3913
语种: 英语
英文关键词: Arctic
; permafrost
; remote sensing
; subsidence
; tundra
; wildfire
Scopus关键词: Fires
; Landforms
; Remote sensing
; Subsidence
; Synthetic aperture radar
; Thawing
; Arctic
; Ground surface subsidence
; Ice-rich permafrost
; Interferometric synthetic aperture radars
; North Slope of Alaska
; Surface subsidence
; tundra
; wildfire
; Permafrost
; active layer
; arctic environment
; forest fire
; permafrost
; radar imagery
; subsidence
; synthetic aperture radar
; tundra
; wildfire
英文摘要: Wildfire is a major disturbance in the Arctic tundra and boreal forests, having a significant impact on soil hydrology, carbon cycling, and permafrost dynamics. This study explores the use of the microwave Interferometric Synthetic Aperture Radar (InSAR) technique to map and quantify ground surface subsidence caused by the Anaktuvuk River fire on the North Slope of Alaska. We detected an increase of up to 8cm of thaw-season ground subsidence after the fire, which is due to a combination of thickened active layer and permafrost thaw subsidence. Our results illustrate the effectiveness and potential of using InSAR to quantify fire impacts on the Arctic tundra, especially in regions underlain by ice-rich permafrost. Our study also suggests that surface subsidence is a more comprehensive indicator of fire impacts on ice-rich permafrost terrain than changes in active layer thickness alone. © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84901736528&doi=10.1002%2f2014GL060533&partnerID=40&md5=611c783b0f3f25336c7b6cd59af3fe79
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7799
Appears in Collections: 气候减缓与适应
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作者单位: Earth System Science Programme, Faculty of Science, Chinese University of Hong Kong, Hong Kong, Hong Kong
Recommended Citation:
Liu L.,Jafarov E.E.,Schaefer K.M.,et al. InSAR detects increase in surface subsidence caused by an Arctic tundra fire[J]. Geophysical Research Letters,2014-01-01,41(11).