Analysis of the effects of rain on surface wind retrieval from X-band marine radar images

Author

Ying Liu ; Weimin Huang ; Gill, Eric W.

Author_Institution

Fac. of Eng. & Appl. Sci., Memorial Univ. of Newfoundland, St. John´s, NL, Canada

fYear

2014

fDate

14-19 Sept. 2014

Firstpage

1

Lastpage

4

Abstract

In this paper, the effects of rain on sea surface wind retrieval from X-band shipborne marine radar images are investigated. Two wind algorithms are applied to the shipborne radar data collected from the Eastern Canadian Coast. It is observed that rain enhances the backscatter intensity of the HH-polarized X-band radar images of the sea surface and results in the radar-retrieved wind speed being overestimated. In the presence of rain, the standard deviation (STD) of wind speed and wind direction using modified intensity-level-selection (ILS) based method increases by about 1.6 m/s and 10.7°, respectively, compared to the results obtained from rain-contamination-free data.

Keywords

marine radar; oceanographic techniques; radar imaging; radar polarimetry; rain; remote sensing by radar; wind; Eastern Canadian Coast; HH-polarized X-band radar images; X-band shipborne marine radar images; backscatter intensity; modified intensity-level-selection based method; radar-retrieved wind speed; rain effects; rain-contamination-free data; sea surface wind retrieval; shipborne radar data; standard deviation; wind algorithms; wind direction; Backscatter; Parameter extraction; Radar imaging; Rain; Sea surface; Wind speed; Wind retrieval; X-band; effects of rain; nautical radar;

fLanguage

English

Publisher

ieee

Conference_Titel

Oceans - St. John's, 2014

Conference_Location

St. John´s, NL

Print_ISBN

978-1-4799-4920-5

Type

conf

DOI

10.1109/OCEANS.2014.7003161

Filename

7003161