Island wake impact on evaporation duct height and sea clutter in the lee of Kauai

Author

Wagner, Lee J. ; Rogers, L. Ted ; Burk, Steve D. ; Haack, Tracy

Author_Institution

Space & Naval Warfare Syst. Center, San Diego, CA, USA

Volume

2

fYear

2001

fDate

2001

Firstpage

901

Abstract

Perturbed flow over and around an island can produce leeside vortices and a long wake region of reduced wind speed and altered thermodynamic structure that impacts the evaporation duct height field and directional wave spectra, both of which impact radar sea clutter returns. In this paper, predicted radar clutter is constructed by using evaporation duct height and wind fields from a mesoscale model along with appropriate sea clutter and electromagnetic propagation models. This predicted radar clutter is compared to shipboard observations of radar clutter taken off the leeward slide of Kauai, in December 1999

Keywords

atmospheric boundary layer; atmospheric thermodynamics; evaporation; ocean waves; radar clutter; remote sensing by radar; wind; AD 1999 12; December 1999; Hawaii; Kauai; Pacific Ocean; directional wave spectra; electromagnetic propagation models; evaporation duct height; island wake; lee; leeside vortices; mesoscale model; perturbed flow; radar returns; sea clutter; thermodynamic structure; wind speed; Ducts; Electromagnetic modeling; Laboratories; Predictive models; Protection; Radar clutter; Spaceborne radar; US Government; Wind forecasting; Wind speed;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International

Conference_Location

Sydney, NSW

Print_ISBN

0-7803-7031-7

Type

conf

DOI

10.1109/IGARSS.2001.976674

Filename

976674