No Access

FREQUENCY BANDED WAVE CLIMATE DESCRIPTION BASED ON THE OBSERVED DIRECTIONAL SPECTRA

Marine Information Division, Marine Environment and Engineering Department, Independent Administrative Institution, Port and Airport Research Institute, 3-1-1 Nagase, Yokosuka, 239-0826, Japan

Search for more papers by this author

NORIAKI HASHIMOTO

Hydrodynamics Division, Marine Environment and Engineering Department, Independent Administrative Institution, Port and Airport Research Institute, 3-1-1 Nagase, Yokosuka, 239-0826, Japan

Search for more papers by this author

KOJI KAWAGUCHI

Hydrodynamics Division, Marine Environment and Engineering Department, Independent Administrative Institution, Port and Airport Research Institute, 3-1-1 Nagase, Yokosuka, 239-0826, Japan

Search for more papers by this author

HIROSHI YOKOI

Planning Division, Coastal Development, Institute of Technology, 6F, 3-16 Hayabusa-cho, Chiyoda-ku, Tokyo, 102-0092, Japan

Search for more papers by this author

MASANOBU KUDAKA

Ecoh Company, 2-6-4 Kita-Ueno, Taito-ku, Tokyo, 110-0014, Japan

Search for more papers by this author

, and

MASAO MITSUI

Kaijo Company, 3-1-5 Sakae-machi, Hamura, 205-8607, Japan

Search for more papers by this author

https://doi.org/10.1142/S0578563402000421Cited by:2 (Source: Crossref)

Abstract

A new system for directional wave spectrum observation was developed by improving the Nationwide Ocean Wave information network for Ports and HArbourS (NOWPHAS). Either Doppler Type Wave Directional Meter (DWDM) or Wave Gauge Array System is adopted for wave observations. Directional spectra are estimated by EMLM method for DWDM and EMEP method for array system. For the convenience, the obtained directional spectra are expressed as the frequency banded wave heights and directions corresponding to the wave spectrum. Examples of annual statistics of the directional wave spectra at three typical NOWPHAS wave stations are introduced in this paper.

Keywords: