Characteristics of the Observed Offshore Wave Data by the GPS Buoys

Author

Nagai, Toshihiko ; Shimizu, Katsuyoshi ; Sasaki, Makoto ; Murakami, Akihiro

Author_Institution

Dept. of Marine Environ. & Eng., Port & Airport Res. Inst., Yokosuka

fYear

2008

Firstpage

1

Lastpage

7

Abstract

This paper explained characteristics of the observed offshore wave, tsunami and tide data for the half year in 2007, obtained by the two sets of the GPS buoy system installed off the Northern Pacific Coast of Japan by the Ports and Airports Department of the Tohoku Regional Development Bureau of the Ministry of Land, Infrastructure and Transport Japan. Two sets of the GPS buoy successfully observed, wave climate, abnormal high waves, and offshore astronomical tides with little data luck only about 2% of the total observation data. Offshore GPS buoys observed much bigger significant wave heights in both normal and abnormal sea states than the shallower seabed wave gauges, meaning that deep-sea wave observation is necessary in order to obtain offshore wave conditions.

Keywords

Global Positioning System; ocean waves; tides; tsunami; GPS buoy system; Japan; Northern Pacific Coast; Ports and Airports Department; Tohoku Regional Development Bureau of the Ministry of Land, Infrastructure and Transport Japan; deep-sea wave observation; offshore astronomical tides; offshore wave heights; sea states; seabed wave gauges; tsunami; wave climate; Airports; Data engineering; Filtering; Global Positioning System; Ocean waves; Sampling methods; Sea measurements; Statistical analysis; Tides; Tsunami;

fLanguage

English

Publisher

ieee

Conference_Titel

OCEANS 2008 - MTS/IEEE Kobe Techno-Ocean

Conference_Location

Kobe

Print_ISBN

978-1-4244-2125-1

Electronic_ISBN

978-1-4244-2126-8

Type

conf

DOI

10.1109/OCEANSKOBE.2008.4530938

Filename

4530938