2010—2019年大连近海客运航线海域海浪要素分布特征

doi:10.3969/j.issn.1673-503X.2022.06.009

Abstract

Abstract:

Based on the wind and wave field data provided by the Global Atmospheric and oceanic reanalysis data of the European Center for Medium-Range Weather Prediction (ECMWF) from 2010 to 2019, the 10 m wind speed, effective wave height of mixed waves and average period of the sea area of Dalian offshore passenger transport routes were statistically analyzed.The multi-year average, seasonal, and inter-monthly variations of each wave element and surge index were analyzed.The results show that the effective wave height of the mixed waves is significantly affected by the surface wind field.The wave elements have obvious seasonal variation characteristics.The effective wave height of the mixed waves and the 10 m wind speed on the sea surface are the maximum in winter and the minimum in summer, while the maximum and minimum of the average period of the mixed waves are in summer.The mixed waves in spring and summer are mainly swell waves.Under the influence of cold air, the mixed waves are mainly wind waves in the sea areas in winter and the northern Bohai Sea in autumn.The offshore wind waves in Dalian are affected by the surface wind field, while the surge waves are mainly affected by the topography.

Key words: Reanalysis data, Effective wave height, Wind wave, Swell index

CLC Number:

P731.22

Shan HUANG,Xiao-dong WU,Jian-jian WANG,Tian-jiao ZHOU,Yan WANG,Hui-lin CHANG. Distribution characteristics of wave elements in the sea area covered by Dalian offshore passenger routes from 2010 to 2019[J]. Journal of Meteorology and Environment, 2022, 38(6): 73-80.

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References 33

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区域	涌浪指数/(%)
区域	春季	夏季	秋季	冬季	年
渤海	64.3	72.1	59.4	58.1	65.5
渤海海峡	65.1	78.0	61.7	50.9	64.0
黄海北部	68.6	83.5	61.2	48.3	65.4
黄海中部	68.2	82.5	63.3	50.6	66.1
大连近海	66.2	77.8	60.7	52.9	64.4

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Distribution characteristics of wave elements in the sea area covered by Dalian offshore passenger routes from 2010 to 2019

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