Comparison of Sentinel-1 Sar and Sentinel-3 Altimetry Data for Sea Ice Type Discrimination
Paper in proceeding, 2019
In this paper near co-incidental Sentinel-1 C-band SAR imagery and Sentinel-3 SRAL Ku-band altimeter data are compared for their capabilities of sea ice type discrimination. Knowledge of sea ice type is important for climate research and safety in Arctic offshore operations.First-year ice is characterised by a low SAR backscatter intensity in both HH and HV polarisation compared to multi-year ice, while the altimeter waveform parameters show high pulse peakiness and peak power compared to multi-year ice.Thus SAR imagery and altimetry can principally discriminate different ice types. The complexity of the backscattered radar signal however impedes a clear separation of the two types for all cases. Cross comparison of the two sensors offers an opportunity of high resolution validation data, which is often lacking for sea ice studies.
Author
Wiebke Aldenhoff
Chalmers, Space, Earth and Environment, Microwave and Optical Remote Sensing
Leif Eriksson
Chalmers, Space, Earth and Environment, Microwave and Optical Remote Sensing
Céline Heuzé
University of Gothenburg
International Geoscience and Remote Sensing Symposium (IGARSS)
4238-4240
9781538691540 (ISBN)
IEEE International Symposium on Geoscience and Remote Sensing (IGARSS)
Yokohama, Japan,
Yokohama, Japan,
Radar remote sensing of sea ice in the Polar regions
Swedish National Space Board (140/13), 2014-01-01 -- 2016-12-31.
Subject Categories
Remote Sensing
Meteorology and Atmospheric Sciences
Climate Research
DOI
10.1109/IGARSS.2019.8899041
ISBN
9781538691540