Title :
Studies of rainfall footprints on the sea conducted by spaceborne SAR “Almaz” and shipborne microwave radiometers
Author :
Bulatov, M.G. ; Raev, M.D. ; Skvortsov, E.I.
Author_Institution :
Inst. of Space Res., Acad. of Sci., Moscow, Russia
Abstract :
The present paper contains the results obtained in Gulf Stream region under intense rainfall conditions in July-August, 1992. The spaceborne SAR “ALMAZ” images and microwave data of measurements conducted by research vessel “Academic Ioffe” are analyzed. Shipborne active and passive remote instruments were probing the sea surface in 0.6-8 cm wave length range of electromagnetic waves. This made it possible to investigate the rainfall influence on a damping of surface waves in different frequency ranges and minimized also the cloud influence on estimates of rain rate with brightness temperature data. Joint analysis of spaceborne SAR observations, microwave shipborne and in situ data allowed some SAR images features associated with rainfall to be explained. The radiobrightness and backscattering of sea surface perturbed by rain was also studied
Keywords :
backscatter; electromagnetic wave scattering; microwave measurement; millimetre wave measurement; ocean waves; oceanographic regions; oceanographic techniques; oceanography; radar cross-sections; radiometry; rain; remote sensing; remote sensing by radar; spaceborne radar; synthetic aperture radar; 0.6 to 8 cm; AD 1992 07; AD 1992 08; Almaz; Gulf Stream; North Atlantic; backscatter; damping; intense rainfall conditions; measurement technique; ocean wave propagation; radar remote sensing; radar scattering; radiowave reflection; rain; rainfall; rainfall footprint; sea surface; shipborne microwave radiometry; spaceborne SAR; surface wave; Electromagnetic measurements; Frequency estimation; Image analysis; Microwave measurements; Ocean temperature; Rain; Sea measurements; Sea surface; Streaming media; Surface waves;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1996. IGARSS '96. 'Remote Sensing for a Sustainable Future.', International
Conference_Location :
Lincoln, NE
Print_ISBN :
0-7803-3068-4
DOI :
10.1109/IGARSS.1996.516707
