Directional wave measurements from the ASIS (Air-Sea Interaction Spar) buoy

Author

Drennan, W.M. ; Graber, H.C. ; Donelan, M.A. ; Terray, E.A.

Author_Institution

Rosenstiel Sch. of Marine & Atmos. Sci., Miami Univ., FL, USA

Volume

1

fYear

1998

fDate

28 Sep-1 Oct 1998

Firstpage

414

Abstract

During the spring of 1997 the Air Sea Interaction Spar (ASIS) buoy was deployed in the northeastern Gulf of Mexico to study meteorological forcing and ocean wave dynamics. This buoy is specially designed to produce little surface disturbance, and to be a partial wave follower at low frequencies. The relative location of the interface is measured by an array of 8 capacitance wave staffs, while the motion of the buoy is monitored using linear accelerometers and rate gyros. This combination permits high resolution measurement of wave directional properties from 10 cm to 600 m. We compare directional frequency spectra measured from the ASIS buoy with those obtained from a 3-meter discus buoy located roughly 1 km away

Keywords

ocean waves; oceanographic equipment; oceanographic regions; wind; ASIS buoy; Air-Sea Interaction Spar buoy; Gulf of Mexico; capacitance wave staffs; directional frequency spectra; directional wave measurements; linear accelerometers; meteorological forcing; ocean wave dynamics; partial wave follower; rate gyros; Capacitance measurement; Frequency; Meteorology; Monitoring; Motion measurement; Ocean waves; Sea measurements; Sea surface; Springs; Surface waves;

fLanguage

English

Publisher

ieee

Conference_Titel

OCEANS '98 Conference Proceedings

Conference_Location

Nice

Print_ISBN

0-7803-5045-6

Type

conf

DOI

10.1109/OCEANS.1998.725779

Filename

725779