Now showing items 1-5 of 5
Uncertainties in Arctic sea ice thickness and volume: new estimates and implications for trends
(Copernicus Publications on behalf of the European Geosciences Union, 2014-04-22)
Sea ice volume has decreased in the last decades, evoked by changes in sea ice area and thickness. Estimates of sea ice area and thickness rely on a number of geophysical parameters which introduce large uncertainties. ...
Open-source sea ice drift algorithm for Sentinel-1 SAR imagery using a combination of feature tracking and pattern matching
(Copernicus Publications, 2017-08-07)
An open-source sea ice drift algorithm for Sentinel-1 SAR imagery is introduced based on the combination of feature tracking and pattern matching. Feature tracking produces an initial drift estimate and limits the search ...
Operational algorithm for ice–water classiﬁcation on dual-polarized RADARSAT-2 images
(Copernicus Publications, 2017-01-11)
Synthetic Aperture Radar (SAR) data from RADARSAT-2 (RS2) in dual-polarization mode provide additional information for discriminating sea ice and open water compared to single-polarization data. We have developed an automatic ...
Open-source feature-tracking algorithm for sea ice drift retrieval from Sentinel-1 SAR imagery
(Copernicus Publications, 2016-04-26)
A computationally efficient, open-source feature-tracking algorithm, called ORB, is adopted and tuned for sea ice drift retrieval from Sentinel-1 SAR (Synthetic Aperture Radar) images. The most suitable setting and parameter ...
Waveform classification of airborne synthetic aperture radar altimeter over Arctic sea ice
(Copernicus Publications on behalf of the European Geosciences Union, 2013-08-19)
Sea ice thickness is one of the most sensitive variables in the Arctic climate system. In order to quantify changes in sea ice thickness, CryoSat-2 was launched in 2010 carrying a Ku-band radar altimeter (SIRAL) ...