气候变化领域集成服务门户(CCPortal): Mapping pan-Arctic landfast sea ice stability using Sentinel-1 interferometry

CCPortal

DOI	10.5194/tc-13-557-2019
	Mapping pan-Arctic landfast sea ice stability using Sentinel-1 interferometry
	Dammann D.O.; Eriksson L.E.B.; Mahoney A.R.; Eicken H.; Meyer F.J.
发表日期	2019
ISSN	19940416
EISSN	13
起始页码	557
结束页码	577
卷号	13 期号:2
英文摘要	Arctic landfast sea ice has undergone substantial changes in recent decades, affecting ice stability and including potential impacts on ice travel by coastal populations and on industry ice roads. We present a novel approach for evaluating landfast sea ice stability on a pan-Arctic scale using Synthetic Aperture Radar Interferometry (InSAR). Using Sentinel-1 images from spring 2017, we discriminate between bottomfast, stabilized, and nonstabilized landfast ice over the main marginal seas of the Arctic Ocean (Beaufort, Chukchi, East Siberian, Laptev, and Kara seas). This approach draws on the evaluation of relative changes in interferometric fringe patterns. This first comprehensive assessment of Arctic bottomfast sea ice extent has revealed that most of the bottomfast sea ice is situated around river mouths and coastal shallows. The Laptev and East Siberian seas dominate the aerial extent, covering roughly 4100 and 5100 km2, respectively. These seas also contain the largest extent of stabilized and nonstabilized landfast ice, but are subject to the largest uncertainties surrounding the mapping scheme. Even so, we demonstrate the potential for using InSAR for assessing the stability of landfast ice in several key regions around the Arctic, providing a new understanding of how stability may vary between regions. InSAR-derived stability may serve for strategic planning and tactical decision support for different uses of coastal ice. In a case study of the Nares Strait, we demonstrate that interferograms may reveal early-warning signals for the breakup of stationary sea ice. © Author(s) 2019.
学科领域	coastal zone; ice breakup; interferometry; mapping method; satellite imagery; sea ice; Sentinel; synthetic aperture radar; Arctic; Arctic Ocean; Nares Strait
语种	英语
scopus关键词	coastal zone; ice breakup; interferometry; mapping method; satellite imagery; sea ice; Sentinel; synthetic aperture radar; Arctic; Arctic Ocean; Nares Strait
来源期刊	The Cryosphere
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/118927
作者单位	Department of Space, Earth and Environment, Chalmers University of Technology, Gothenburg, 41296, Sweden; Geophysical institute, University of Alaska Fairbanks, Fairbanks, 99775, United States; International Arctic Research Center, University of Alaska Fairbanks, Fairbanks, 99775, United States
推荐引用方式 GB/T 7714	Dammann D.O.,Eriksson L.E.B.,Mahoney A.R.,et al. Mapping pan-Arctic landfast sea ice stability using Sentinel-1 interferometry[J],2019,13(2).
APA	Dammann D.O.,Eriksson L.E.B.,Mahoney A.R.,Eicken H.,&Meyer F.J..(2019).Mapping pan-Arctic landfast sea ice stability using Sentinel-1 interferometry.The Cryosphere,13(2).
MLA	Dammann D.O.,et al."Mapping pan-Arctic landfast sea ice stability using Sentinel-1 interferometry".The Cryosphere 13.2(2019).