A case study on swell modulation caused by surface winds using spaceborne synthetic aperture radar

Jian Sun, Hiroshi Kawamura

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

Abstract

In an ERS-SAR image of the sea off Kii Peninsula on 30 March 1996, we found an atmospheric front formed by the sheltering effect of land topography and swell modulation in the sheltered/non-sheltered areas. From the SAR image, high-resolution wind speed and SAR-wave spectrum are retrieved. In the frequency range higher than the peak frequency, the SAR-spectra of the non-sheltered area have energy density higher than that of the sheltered area. The difference between the spectra of sheltered/non-sheltered areas is well explained by the simulated SAR spectra using the SAR-derived winds and a wind wave development formula suggest that the observed swell modulation is caused by the surface wind. This is a preliminary report and a full paper will appear elsewhere.

Original languageEnglish
Title of host publication2007 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2007
Pages975-978
Number of pages4
DOIs
Publication statusPublished - 2007 Dec 1
Event2007 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2007 - Barcelona, Spain
Duration: 2007 Jun 232007 Jun 28

Publication series

NameInternational Geoscience and Remote Sensing Symposium (IGARSS)

Other

Other2007 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2007
CountrySpain
CityBarcelona
Period07/6/2307/6/28

Keywords

  • JONSWAP
  • S-SWi (Swell -Surface Wind interaction)
  • SAR
  • Surface winds
  • Swell

ASJC Scopus subject areas

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

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