海洋预报2012，Vol.29Issue(5)：48-52,5.
西北太平洋海域海表风速长期变化趋势研究
Long-term trend analysis of sea surface wind speed in the Northwest Pacific Ocean
摘要
Abstract
Based on the ERA-40 sea surface wind field data from the ECMWF, the long-term trend of sea surface wind field in the Northwest Pacific Ocean was analyzed by linear regression method. The results show that: (1) from 1958 to 2001, sea surface wind speed within the first island chain waters of the Northwest Pacific had no significant change, but showed a significant linear increase trend at the outside the first island chain, which is about 0.005-0.02m · s-1 · a-1. Meanwhile, the sea surface wind speed had a significant linear decrease trend in some sporadic regions. (2) During the past 44 years, the sea surface wind speed in the Northwest Pacific Ocean showed a significant linear increase by 0.0072 m · s-1 · a-1. In the period of 1958-1974, the increasing trend is stronger. However, the trend of sea surface wind speed in the Northwest Pacific Ocean was much stable during 1975-2001, especially from 1976 to 1983. (3) The sea surface wind speed in the Northwest Pacific Ocean had no a significant linear increase tendency in MAM and JJA, but had an obvious increase tendency in SON and DJF. (4) The sea surface wind speed showed several different time scale oscillation periods, which are 2.0-2.4 years, 4.3-5.2 years and 26 year respectively.关键词
西北太平洋/ERA-40海表10m风场/长期变化趋势/周期Key words
Northwest Pacific Ocean/ ERA-40 sea surface wind field/ long-term trend/ period分类
海洋科学引用本文复制引用
潘静,郑崇伟..西北太平洋海域海表风速长期变化趋势研究[J].海洋预报,2012,29(5):48-52,5.基金项目
国家重点基础研究发展规划项目(2010CB950400) （2010CB950400）
中科院知识创新工程重要方向项目(KZCX2-YW-Q11-03) （KZCX2-YW-Q11-03）
