Ocean surface wind retrieval from stationary and moving platform marine radar data

Bjorn Lund, Hans C. Graber, Jochen Horstmann, Eric Terrill

Research output: Contribution to conferencePaperpeer-review

3 Scopus citations

Abstract

In this paper we evaluate different methods to retrieve wind information from marine radar data. In contrast to traditional in-situ sensors, marine radar wind data cover a large area and therefore are much less susceptible to air flow distortion by the platform. Unlike previous studies that have been limited to fixed-platform data, this study includes data from a quasi-stationary and moving platform. Images collected with a standard marine HH-polarized X-band radar operating at grazing incidence angle exhibit a single intensity peak in the upwind direction. Marine radar images that are averaged over about 1 min may also show wind streaks, which are usually well-aligned with the mean surface wind direction. Here, we use both phenomena to retrieve wind directional information and compare results to determine the best approach under the given conditions. To retrieve wind speeds, an empirical model function which relates average backscatter intensity to wind speed is developed.

Original languageEnglish (US)
Pages2790-2793
Number of pages4
DOIs
StatePublished - Dec 1 2012
Event2012 32nd IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2012 - Munich, Germany
Duration: Jul 22 2012Jul 27 2012

Other

Other2012 32nd IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2012
CountryGermany
CityMunich
Period7/22/127/27/12

Keywords

  • Marine radar
  • sea surface
  • signal analysis
  • wind

ASJC Scopus subject areas

  • Computer Science Applications
  • Earth and Planetary Sciences(all)

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