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Titel Response of glacier mass balance to regional warming, deduced by remote sensing on three glaciers in S-Iceland
VerfasserIn S. Guðmundsson, H. Björnsson, E. Magnusson, E. Berthier, F. Pálsson, M. T. Gudmundsson, J. Dall
Konferenz EGU General Assembly 2009
Medientyp Artikel
Sprache Englisch
Digitales Dokument PDF
Erschienen In: GRA - Volume 11 (2009)
Datensatznummer 250023418
 
Zusammenfassung
We assess the mass balance changes of three ice caps in South Iceland, for two periods, 1980 to 1998 and 1998 to 2004, by comparing digital elevation models (DEMs) covering the entire glaciers; Eyjafjallajökull (81 km2), Tindfjallajökull (15 km2) and Torfajökull (14 km2). The DEMs were compiled by i) using aerial photographs taken between 1979 to 1984 by the American Defense Map Agency (DMA) and the Icelandic Geodetic Survey, ii) using airborne EMISAR radar images obtained in 1998 by the Electromagnetic system (EMI) of the Technical University of Denmark, and iii) using two image pairs from the SPOT5 high resolution stereoscopic (HRS) instrument from 2004. The ice-free part of the EMISAR-DEM (5x5 m spatial resolution with accuracy