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Operation IceBridge, a six-year NASA mission, is the largest airborne survey of Earth's polar ice ever flown. Data collected during IceBridge will help scientists bridge the gap in polar observations between NASA's Ice, Cloud and Land Elevation Satellite (ICESat), in orbit from 2003 to 2009, and ICESat-2, planned for launch in late 2015, making IceBridge critical for ensuring a continuous series of...
This paper describes a validation study performed by comparing the AVHRR-based Climate-SAF Surface Albedo Product (SAL) to ground truth observations over Greenland (Greenland Climate Network) and the ice-covered Arctic Ocean (Tara floating ice station) over Arctic summer 2007. The AVHRR dataset consists of 2755 overpasses. The SAL algorithm derives the surface broadband albedo from AVHRR channels...
We apply a polarimetric classification scheme to Envisat Alternating Polarisation mode ASAR images and compare to ground truth data. By analysing images with a range of acquisition conditions and comparing the classification accuracy with the ground truth data, we investigate the influence of the acquisition conditions for glacier facies discrimination. We find that the main influence is the image...
Large continental shelves comprise over 30% of the surface area of the Arctic Ocean and play a key role in establishing property distributions within the Arctic basin. One of the primary mechanisms that drives shelf/basin exchange is wind-driven upwelling. For example, the Beaufort Shelf experiences summer upwelling events that can bring relatively warm, saline and nutrient rich waters from the upper...
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