학술논문

ONE WEEK WAVE PREDICTION METHOD APPLYING GMDH’S PARTIAL EXPRESSION TO GLOBAL WAVE FORECAST AND VALIDATING ACCURACY / 全球波浪予報値とGMDH部分表現式を用いた1週間波浪予測法とその精度検証
Document Type
Journal Article
Source
土木学会論文集B3(海洋開発) / Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering). 2019, 75(1):18
Subject
GMDH (Group Method of Data Handling)
global wave model
one week lead time wave prediction
wave prediction
Language
Japanese
ISSN
2185-4688
Abstract
There are many kinds of global wave forecasts currently available, however, from the resolution point of view, we cannot expect accuracy of their predictions one week ahead, for the coast of Japan. This study aims to establish a wave prediction method to aid in the scheduling of ships for work in harbor and marine construction. We proposed a method of improving wave prediction up to one week ahead and verified its accuracy for a target area at the Port of Hitachinaka, using global wave forecast values and the partial expression of the Group Method of Data Handling. It was found that when global wave data by the NOAA and ECMWF wave models were used together in the partial expression, predictions of significant wave heights agreed well with the observed ones; for significant wave periods, data combination of both the Japan Meteorological Agency and ECMWF wave models gave the best performance. This method can be applied to any location by applying the same technique to the forecasted and observed wave data for that area.

Online Access