Validation of wind vector retrieval from ENVISAT ASAR images

Yijun He, Qingping Zou, William Perrie

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

1 Citation (Scopus)

Abstract

Ocean wind speeds and wind directions are estimated simultaneously using the normalized radar cross sections corresponding to two neighboring images, having slightly different incidence angles. The wind direction ambiguity is removed by using the direction closest to that given by the buoy or some other determination. To validate this method, some ENVISAT ASAR images of the Gulf of Mexico and coastal waters of the North Atlantic are used to estimate wind vectors, compared with wind measurements from buoy data. Moreover, ASAR can also provide dual-polarization SAR images. Therefore, we derived an empirical polarization ratio as a function of the radar incidence angle. Wind vector fields are retrieved from RADARSAT-1 SAR HH-polarization images based upon this empirical ratio and compared with buoy measurements and QuikSCAT data.

Original languageEnglish
Title of host publication2004 IEEE International Geoscience and Remote Sensing Symposium Proceedings
Subtitle of host publicationScience for Society: Exploring and Managing a Changing Planet. IGARSS 2004
Pages3184-3187
Number of pages4
Volume5
DOIs
Publication statusPublished - 2004
Event2004 IEEE International Geoscience and Remote Sensing Symposium - Anchorage, United States
Duration: 20 Sep 200424 Sep 2004

Conference

Conference2004 IEEE International Geoscience and Remote Sensing Symposium
Abbreviated titleIGARSS 2004
CountryUnited States
CityAnchorage
Period20/09/0424/09/04

Keywords

  • Retrieval
  • SAR
  • Wind vector

ASJC Scopus subject areas

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

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  • Cite this

    He, Y., Zou, Q., & Perrie, W. (2004). Validation of wind vector retrieval from ENVISAT ASAR images. In 2004 IEEE International Geoscience and Remote Sensing Symposium Proceedings: Science for Society: Exploring and Managing a Changing Planet. IGARSS 2004 (Vol. 5, pp. 3184-3187) https://doi.org/10.1109/IGARSS.2004.1370377