Mapping Glacier Velocities at Spitsbergen Using ers tandem sar data Bjørn Wangensteen*, Dan Johan Weydahl**, Jon Ove Hagen

Mapping Glacier Velocities at Spitsbergen Using ERS Tandem SAR Data

• Bjørn Wangensteen*, Dan Johan Weydahl**, Jon Ove Hagen*

• *Department of Physical Geography, University of Oslo, PO Box 1042 Blindern, 0316 Oslo, Norway

• **Norwegian Defence Research Establishment, Division of Electronics, PO Box 25, 2007 Kjeller, Norway

• E-mail: [e-mail]

Raw DINSAR

Raw DINSAR

Gradient Filtered DINSAR

Thresholded DINSAR

Vectorized DINSAR

Displacement towards the Satellite

Velocity Field of Isachsenfonna

Velocity Field of Akademikerbreen

Velocity Field of Nordbreen