Observation of hurricane winds using synthetic aperture radar

Jochen Horstmann, Wolfgang Koch, Donald R. Thompson, Hans C Graber

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

In the last five years several synthetic aperture radar (SAR) images of hurricanes have been acquired by the Canadian satellite RADARSAT-1 as well as the European satellite ENVISAT. Several of these SAR images have captured hurricanes of category 4 and 5. These SAR data give the unique opportunity to investigate the possibilities of SAR data for observation and forecast of hurricanes. In this study wind fields under hurricane conditions are retrieved from the SAR utilizing WiSAR. WiSAR is an algorithm, which has shown to give good results under low and moderate wind conditions. The algorithm extracts wind directions from wind induced streaks imaged by the SAR at scales above 200m. Wind speeds are extracted from the SAR measured normalized radar cross section (NRCS) utilizing the C-band model CMOD5, which describes the dependency of the NRCS on wind. It will be shown that the algorithm enables to measure wind directions as well as wind speeds of over 50 ms-1. The SAR-retrieved wind fields are compared to results of a high resolution numerical hurricane model.

Original languageEnglish (US)
Title of host publicationEuropean Space Agency, (Special Publication) ESA SP
Edition613
StatePublished - Apr 2006
EventSEASAR 2006: Advances in SAR Oceanography from Envisat and ERS Missions - Frascati, Italy
Duration: Jan 23 2006Jan 26 2006

Other

OtherSEASAR 2006: Advances in SAR Oceanography from Envisat and ERS Missions
CountryItaly
CityFrascati
Period1/23/061/26/06

Fingerprint

Hurricanes
Synthetic aperture radar
Radar cross section
Satellites

ASJC Scopus subject areas

  • Aerospace Engineering

Cite this

Horstmann, J., Koch, W., Thompson, D. R., & Graber, H. C. (2006). Observation of hurricane winds using synthetic aperture radar. In European Space Agency, (Special Publication) ESA SP (613 ed.)

Observation of hurricane winds using synthetic aperture radar. / Horstmann, Jochen; Koch, Wolfgang; Thompson, Donald R.; Graber, Hans C.

European Space Agency, (Special Publication) ESA SP. 613. ed. 2006.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Horstmann, J, Koch, W, Thompson, DR & Graber, HC 2006, Observation of hurricane winds using synthetic aperture radar. in European Space Agency, (Special Publication) ESA SP. 613 edn, SEASAR 2006: Advances in SAR Oceanography from Envisat and ERS Missions, Frascati, Italy, 1/23/06.
Horstmann J, Koch W, Thompson DR, Graber HC. Observation of hurricane winds using synthetic aperture radar. In European Space Agency, (Special Publication) ESA SP. 613 ed. 2006
Horstmann, Jochen ; Koch, Wolfgang ; Thompson, Donald R. ; Graber, Hans C. / Observation of hurricane winds using synthetic aperture radar. European Space Agency, (Special Publication) ESA SP. 613. ed. 2006.
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