A digital laser slopemeter for small scale sea surface roughness measurements

Author

Crossingham, G.J. ; Willoughby, B.J. ; Ramsded, D. ; Robinson, I.S.

Author_Institution

Dept. of Phys. & Astron., Southampton Univ., UK

Volume

3

fYear

1998

fDate

28 Sep-1 Oct 1998

Firstpage

1676

Abstract

A laser slopemeter is described that uses a digital technique to measure the slope of a laser beam after it has passed through the air-sea interface. By scanning the laser beam over a limited region of the sea surface information on the directional wave spectrum can be obtained. This method provides a near-instantaneous measurement of the wave slope in this area. The fast and efficient manner in which the slope of the laser beam is detected will allow the measurements made to be processed and displayed in real-time. This will enable the operator to use the instrument in a more interactive manner by monitoring the data as it is acquired

Keywords

ocean waves; oceanographic equipment; oceanographic techniques; air-sea interface; digital laser slopemeter; directional wave spectrum; in situ measurement; instrument; laser method; measurement technique; ocean wave; sea surface roughness; small scale; Area measurement; Instruments; Laser beams; Rough surfaces; Sea measurements; Sea surface; Sea surface roughness; Surface emitting lasers; Surface roughness; 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.1998.726373

Filename

726373