东篱科研大数据发现系统（DRDS）

位置：成果数据库 > 期刊 > 期刊详情页

全球海洋波高的年代际变化

ISSN号：1672-5182
期刊名称：《中国海洋大学学报：英文版》
时间：0
分类：P731.22[天文地球—海洋科学] X21[环境科学与工程—环境科学]
作者机构：[1]College of Meteorology and Oceanography, People 's Liberation Army University of Science & Technology, Nanjing 211101, P. R. China, [2]National Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics (LASG), Institute of Atmospheric Physics, the Chinese Academy of Sciences, Beijing 100029, P. R. China, [3]Dalian Naval A cademy, Dalian 116018, P. R. China, [4]Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science & Technology, Nanjing 210044, P. R. China
相关基金：This work was supported by the National Ky Basic Research Development Program （Grant Nos. 2015CB453200, 2013CB956200, 2012CB957803, 2010CB950400）, and the National Natural Science Foundation of China （Grant Nos. 41430426, 41490642, 41275086, 41475070）.

作者： ZHENG Chongwei[1,2,3], ZHOU Lin[1], SHI Weilai[1,4], LI Xin[1]

关键词：全球海洋, 有效波高, 年代际变化, 季节性差异, 线性趋势, 中期天气预报, ECMWF, 气候变化, global ocean, significant wave height, long-term trend, regional differences, seasonal differences, dominant season

中文摘要：

本文提出了有效波高的长期气候变化（HS）在过去45年并使用欧洲中期天气预报中心（ECMWF）全球海洋再分析（ERA-40）波数据，计算了HS和HS的线性趋势的区域性和季节性差异的线性趋势。结果表明，HS表现出显著的上升趋势，约4.6厘米的十年-1在全球海洋作为一个整体，在过去的44年。HS变化缓慢的时期，1958-1974，1980-1991，同时它增加持续期间1975-1980年和1995年至1998年。HS达到其最低值在1975，年平均浪高约2米1992，HS有近2.60m最大值。在大部分海域的HS有显著增加的趋势在近44 2-14厘米十年-1。线性趋势表现出很大的区域差异。与HS强大的增长趋势的地区主要分布在南半球和北半球西风带。只有一些小面积显示明显减少。在DJF HS的长期趋势（十二月，一月，二月）和妈妈（三月，四月，五月）远比在6-8月（六月，七月，八月）和儿子（九月，十月，十一月）。不同地区的HS的线性趋势是在不同季节不同；例如，在太平洋西风带HS的增长趋势主要出现在MAM和DJF。

英文摘要：

This paper presents the long-term climate changes of significant wave height （Hs） in 1958-2001 over the entire global ocean using the 45-year European Centre for Medium-Range Weather Forecasts （ECMWF） Reanalysis （ERA-40） wave data, The linear trends in Hs and regional and seasonal differences of the linear trends for Hs were calculated. Results show that the Hs exhibits a significant increasing trend of about 4.6 cm decade-1 in the global ocean as a whole over the last 44 years. The Hs changes slowly during the periods 1958-1974 and 1980-1991, while it increases consistently during the periods 1975-1980 and 1995-1998. The Hs reaches its lowest magnitude in 1975, with annual average wave height about 2 m. In 1992, the Hs has the maximum value of nearly 2.60m. The Hs in most ocean waters has a significant increasing trend of 2-14 cm decade-1 over the last 44years. The linear trend exhibits great regional differences. Areas with strong increasing trend of Hs are mainly distributed in the westerlies of the southern Hemisphere and the northern Hemisphere. Only some small areas show obvious decreasing in Hs. The long-term trend of Hs in DJF （December, January, February） and MAM （March, April, May） is much more stronger than that in JJA （June, July, August） and SON （September, October, November）. The linear trends of the Hs in different areas are different in different seasons; for instance, the increasing trend of Hs in the westerlies of the Pacific Ocean mainly appears in MAM and DJF.

同期刊论文项目