海洋预报2013，Vol.30Issue(4)：34-39,6.DOI:10.11737/j.issn.1003-0239.2013.04.005
近44年北印度洋海表风速变化趋势分析
Long term trend of sea surface wind speed in the Northern Indian Ocean from 1958 to 2001
摘要
Abstract
In this paper,based on the ERA-40 wind field data from ECMWF (European Centre for Medium-Range Weather Forecasts),the long-term linear trend of sea surface wind speed from 1958 to 2001 in the northern Indian Ocean was analyzed.Results show that,(1) from 1958 to 2001,wind speed in low latitude of northern Indian Ocean and a wide range areas from Somalia to Sri Lanka shows an obvious increasing trend.Only some scatter regions have a decreasing trend during the last 44 years.(2) Sea surface wind speed in the entire of the northern Indian Ocean shows an obvious increasing trend with a rate of 0.0061m· s-1· a-1 from 1958 to 2011.(3) Linear trends of sea surface wind speed in different areas of the northern Indian Ocean have prominent seasonal variability.(4) During the last 44 years,there is a significant 2.0 years 2.6-3.7 years,5.2 years of change cycles,and 26 years of long-period oscillation for the North Indian Ocean sea surface wind speed.关键词
ERA-40风场资料/北印度洋/长期变化趋势/变化周期Key words
ERA-40 wind field data/ North Indian Ocean/ long-term trend/ periods分类
海洋科学引用本文复制引用
刘铁军,郑崇伟,李训强,张文静..近44年北印度洋海表风速变化趋势分析[J].海洋预报,2013,30(4):34-39,6.基金项目
中科院知识创新工程重要方向项目(KZCX2-YW-Q11-03) （KZCX2-YW-Q11-03）
