Monitoring Lake Ice in Northern Alaska with Backscattering and Interferometric Approaches Using Sentinel-1 Sar Data
- Resource Type
- Conference
- Authors
- Wakabayashi, Hiroyuki; Motohashi, Kazushige; Maezawa, Naotake
- Source
- IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium Geoscience and Remote Sensing Symposium, IGARSS 2019 - 2019 IEEE International. :4202-4205 Jul, 2019
- Subject
- Aerospace
Geoscience
Signal Processing and Analysis
Ice
Lakes
Backscatter
Synthetic aperture radar
Climate change
Monitoring
Arctic
lake ice
freezing
Sentinel-1
synthetic aperture radar
interferometry
- Language
- ISSN
- 2153-7003
The goal of this research was to evaluate the effect of Arctic climate change on the surrounding land area. In this research, we investigated a method to monitor the ice condition of shallow lakes in the Arctic region using C-band synthetic aperture radar (SAR) data and provide a strategy to evaluate the effect of climate change on the Arctic land area. A method to monitor the ice condition of these lakes was investigated using the SAR data acquired by Sentinel-1 from 2015 to 2018. We confirmed that the C-band SAR data from Sentinel-1 could monitor the ice condition of shallow lakes in northern Alaska. The backscattering threshold between floating and grounded ice was -14.8 to -16.8 dB depending on the incidence angle. We could also successfully monitor the growth of floating ice by using the interferometric SAR approach.