Evaluations of wind vectors observed by ASCAT using statistical distributions

Author

Ebuchi, Naoto

Author_Institution

Naoto Ebuchi Inst. of Low Temp. Sci., Hokkaido Univ., Sapporo, Japan

fYear

2011

fDate

24-29 July 2011

Firstpage

3732

Lastpage

3735

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2011 IEEE International

Conference_Location

Vancouver, BC

ISSN

2153-6996

Print_ISBN

978-1-4577-1003-2

Type

conf

DOI

10.1109/IGARSS.2011.6050036

Filename

6050036