期刊
REMOTE SENSING
卷 10, 期 5, 页码 -出版社
MDPI
DOI: 10.3390/rs10050720
关键词
sea ice; sea ice deformation; bottomfast ice; landfast sea ice; Arctic; synthetic aperture radar; InSAR
类别
资金
- Swedish National Space Board [192/15]
- Seasonal Ice Zone Observing Network [NSF-0856867]
- Barrow Area Information Database [NSF-1023654]
- US Bureau of Ocean and Energy Management (BOEM) Coastal Impact Assistance Program
- Swedish National Space Agency (SNSA) [192/15] Funding Source: Swedish National Space Agency (SNSA)
Bottomfast sea ice is an integral part of many near-coastal Arctic ecosystems with implications for subsea permafrost, coastal stability and morphology. Bottomfast sea ice is also of great relevance to over-ice travel by coastal communities, industrial ice roads, and marine habitats. There are currently large uncertainties around where and how much bottomfast ice is present in the Arctic due to the lack of effective approaches for detecting bottomfast sea ice on large spatial scales. Here, we suggest a robust method capable of detecting bottomfast sea ice using spaceborne synthetic aperture radar interferometry. This approach is used to discriminate between slowly deforming floating ice and completely stationary bottomfast ice based on the interferometric phase. We validate the approach over freshwater ice in the Mackenzie Delta, Canada, and over sea ice in the Colville Delta and Elson Lagoon, Alaska. For these areas, bottomfast ice, as interpreted from the interferometric phase, shows high correlation with local bathymetry and in-situ ice auger and ground penetrating radar measurements. The technique is further used to track the seasonal evolution of bottomfast ice in the Kasegaluk Lagoon, Alaska, by identifying freeze-up progression and areas of liquid water throughout winter.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据