Title :
Ice motion analysis on different spatial scales in the Weddell Sea
Author :
Rebhan, Helge ; Li, Aoxue
Author_Institution :
Alfred Wegener Inst. for Polar & Marine Res., Bremerhaven, Germany
Abstract :
Ice motion vector fields derived from satellite images are analysed for one region in the central part of the Weddell Sea, Antarctica. Taking overlapping ERS-1 SAR and NOAA-AVHRR data the analysis could be made for approximately the same time period. Whereas mean values for velocity and direction are consistent for each sensor, the shear of the ice pack is much higher for the AVHRR frames. Short time variations due to changing surface wind conditions are clearly visible in the AVHRR data
Keywords :
microwave measurement; millimetre wave measurement; oceanographic regions; oceanographic techniques; radar applications; radiometry; remote sensing; remote sensing by radar; sea ice; spaceborne radar; synthetic aperture radar; AVHRR; Antarctica; ERS-1; NOAA; SAR; Southern Ocean; Weddell Sea; circulation; ice pack shear; measurement technique; microwave radiometry; motion vector fields; ocean; radar remote sensing; satellite image; sea ice motion; sea surface; spatial scale; surface wind conditions; Antarctica; Data analysis; Ice; Image analysis; Image motion analysis; Information resources; Motion analysis; Orbital calculations; Satellite broadcasting; Sea surface;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1995. IGARSS '95. 'Quantitative Remote Sensing for Science and Applications', International
Conference_Location :
Firenze
Print_ISBN :
0-7803-2567-2
DOI :
10.1109/IGARSS.1995.520480
