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Variations in Winter Ocean Wave Climate in the Japan Sea under the Global Warming Condition

Faculty of Geosciences and Civil Engineering, Kanazawa University, Kanazawa 920-1192, Japan
J. Mar. Sci. Eng. 2019, 7(5), 150; https://doi.org/10.3390/jmse7050150
Received: 26 April 2019 / Revised: 9 May 2019 / Accepted: 13 May 2019 / Published: 15 May 2019
(This article belongs to the Section Coastal Engineering)
Future variations in the ocean wave climate caused by global warming could affect various coastal issues. Using a third-generation wave model, this study produced projections of the ocean wave climate for winter around Japan, focusing on the Japan Sea side. Wave simulation forcing (sea surface wind) was generated through five different global warming experiments. More than half the future wave projections showed an increasing tendency of the climatological mean significant wave height during winter. However, the maximum significant wave height did not show any clear tendency in future variation. The top 1% of significant wave heights and mean wave periods showed apparent increases in frequencies of higher/longer waves in three out of the five future projections. Frequency distributions of significant wave height, mean wave period, mean wavelength and wave direction showed various future variations (reduction of small ocean waves, increasing frequency of waves from the west). There are large uncertainties in future variations of wave climate in the Japan Sea, but the high probability of variations in daily wave climate is recognized, based on the future wave projections. Variations in daily wave climate are important because they could affect the topography and environment of the coast through long-term repetitive actions. View Full-Text
Keywords: dynamical wave simulation; global warming; multi-model ensemble; Japan Sea dynamical wave simulation; global warming; multi-model ensemble; Japan Sea
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Taniguchi, K. Variations in Winter Ocean Wave Climate in the Japan Sea under the Global Warming Condition. J. Mar. Sci. Eng. 2019, 7, 150.

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