Title :
Near nadir scattering properties at W-band frequency for the sea surface
Author :
Horie, Hiroaki ; Kuroiwa, Hiroshi ; Kumagai, Hiroshi
Author_Institution :
Nat. Inst. of Inf. & Commun. Technol., Tokyo
Abstract :
The sea surface is considered a useful natural calibration target for satelliteborne cloud profiling radar with a narrow antenna beam. However, the normalized radar cross section (NRCS) of the sea surface at W-band frequency is not well known. It is known that the NRCS depends on the wind speed and direction over ocean. We made experiments to measure sea surface NRCS under various conditions using NICT´s W-band airborne cloud profiling radar (SPIDER). The sea surface properties measured in this experiment are similar to these measured with microwave scatterometers at other frequencies
Keywords :
airborne radar; oceanographic techniques; radar cross-sections; remote sensing by radar; wind; NICT; NRCS; SPIDER; W-band airborne cloud profiling radar; W-band frequency; nadir scattering properties; narrow antenna beam; natural calibration target; normalized radar cross section; satelliteborne cloud profiling radar; sea surface properties; wind direction; wind speed; Calibration; Clouds; Frequency measurement; Microwave measurements; Radar antennas; Radar cross section; Radar measurements; Radar scattering; Sea measurements; Sea surface;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings. 2004 IEEE International
Conference_Location :
Anchorage, AK
Print_ISBN :
0-7803-8742-2
DOI :
10.1109/IGARSS.2004.1370669
