Title :
Evaluations of wind vectors observed by ASCAT using statistical distributions
Author_Institution :
Naoto Ebuchi Inst. of Low Temp. Sci., Hokkaido Univ., Sapporo, Japan
Abstract :
Marine surface wind vectors observed by the Advanced Scatterometer (ASCAT) on the MetOp-A satellite were evaluated by assessing their self-consistency. Global statistics on wind speeds and directions were calculated from the data for a period of one year. The wind speed histograms exhibited a clear dependence on the cross-track wind vector cell location, which corresponds to the incidence angle. The histograms of the wind directions relative to the satellite flight direction clearly showed systematic errors relative to the antenna beam directions.
Keywords :
atmospheric boundary layer; atmospheric techniques; oceanographic techniques; remote sensing by radar; statistical distributions; wind; ASCAT; Advanced Scatterometer; MetOp-A satellite; antenna beam directions; cross track wind vector cell location; global wind direction statistics; global wind speed statistics; marine surface wind vectors; self consistency assessment; statistical distributions; wind speed histograms; wind vector evaluation; Histograms; Oceans; Radar measurements; Satellites; Spaceborne radar; Wind speed; ASCAT; MetOP; ocean vector wind; scatterometer; validation;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2011 IEEE International
Conference_Location :
Vancouver, BC
Print_ISBN :
978-1-4577-1003-2
DOI :
10.1109/IGARSS.2011.6050036
