Status report on the remote sensing of current features by spaceborne synthetic aperture radar

Roland Romeiser, Susanne Ufermann, Stefan Kern

Research output: Contribution to journalConference articlepeer-review

3 Scopus citations

Abstract

Spatial variations in ocean surface currents can become visible in synthetic aperture radar (SAR) images via hydrodynamic modulation of the surface roughness. The interpretation of such SAR signatures is a challenging problem, since the imaging mechanism is quite complex and nonlinear and cannot be inverted easily. Furthermore, the distinction between SAR signatures of current features and other phenomena can be difficult. However, SAR is the only existing technique for the observation of current variations on spatial scales of tens of meters from satellites. There is a vital demand for such information, particularly in coastal regions. A variety of algorithms have been developed for the retrieval of information on current features from SAR images for different purposes. We give an overview of the state of the art, existing and potential applications, and future perspectives and requirements.

Original languageEnglish (US)
Pages (from-to)105-123
Number of pages19
JournalEuropean Space Agency, (Special Publication) ESA SP
Issue number565
StatePublished - Dec 1 2004
Externally publishedYes
EventProceedings of the Second Workshop on Coastal and Marine Applications of SAR - Svalbard, Norway
Duration: Sep 8 2003Sep 12 2003

ASJC Scopus subject areas

  • Aerospace Engineering
  • Space and Planetary Science

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