Title :
Global distribution of sea surface features from SAR wave mode data
Author :
Lehner, S. ; Schulz-Stellenfleth, J. ; Niedermeier, Anja ; Horstmann, J.
Author_Institution :
German Aerosp. Center, Oberpfaffenhofen, Germany
Abstract :
A global set of single look complex (SLC) synthetic aperture radar (SAR) images is processed, from wave mode raw data using the B-SAR processor developed at Deutsches Zentrum fur Luft und Raumfahrt (DLR). Multilook methods are used to reduce speckle or to analyze the time evolution of the ocean surface cross section during SAR Integration time. Using imagettes instead of image power spectra allows to study ocean surface features caused by natural slicks, sea ice or atmospheric processes. Different automatic image analysis methods are used to detect and classify these features. About 200 imagettes are acquired over the Arctic every day, from these data sea ice parameters are derived
Keywords :
atmospheric techniques; geophysical signal processing; image classification; image processing; meteorological radar; ocean waves; oceanographic regions; oceanographic techniques; radar imaging; remote sensing by radar; sea ice; spaceborne radar; synthetic aperture radar; Arctic Ocean; B-SAR processor; DLR; SAR; atmosphere; global distribution; image classification; image processing; imagettes; measurement technique; meteorology; ocean; ocean wave; radar remote sensing; sea ice; sea surface; sea surface feature; single look complex; spaceborne radar; synthetic aperture radar; Extraterrestrial measurements; Ice surface; Image analysis; Ocean waves; Sea ice; Sea surface; Speckle; Surface waves; Synthetic aperture radar; Wind;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-7031-7
DOI :
10.1109/IGARSS.2001.977065
