Environment of the Atlantic sector of the Arctic, where Svalbard ice masses lie, is highly vulnerable to climate changes. Mass balance of a few selected glaciers are well known from field measurements, however it’s also important to calculate changes in glacier volume from archived data and remote sensing methods for the glaciers with no direct measurements. Rapid changes in topography of glaciers cause the need to eliminate uncertainties and re-analyse mass balance calculations. In this study, based on digital elevation models from photogrammetric photos and satellite images (SPOT 5), we estimate changes in elevation and volume of Werenskioldbreen and Hansbreen in 1990 – 2008 period.

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