摘要
基于CCMP、ERA-Interim和NCEP-DOE三种全球风场产品,利用线性趋势检验和变异性系数分析了我国海表面风1985～2013年的风速变化情况。结果表明：不同风场产品所表征的海表面风变化趋势及区域变化强度存在差异。CCMP和NCEP-DOE均显示中国海表面年平均风速在呈显著性线性增强,增加速率分别为0.050 m/s·a和0.015 m/s·a,CCMP风速的快速增长可能隐含着资料同化背景场改变而引起的风速抬升因素,ERA-Interim并未显示出中国海表面风速在1985～2013年有明显的线性增强或减弱趋势。在黄渤海对中国海域海表面风增速贡献方面,NCEP-DOE与CCMP计算结果截然不同,CCMP显示黄渤海是中国四个区域海区中风速增加最强的区域,而NCEP-DOE显示该区风速增加最弱。
Based on three global wind products that is CCMP,ERA-Interim and NCEP-DOE,this study had conducted linear trend test and variability analysis for the sea surface wind over China seas from 1985 to 2013. The results indicate that three kinds wind products have some divergences as regards its varying trend and regional variation intension of sea surface wind. Both CCMP and NCEP-DOE show that sea surface wind over China sea has a significant linear increasing trend with an ascent rate of 0. 050 m / s·a or 0. 015 m / s·a,but the rapid increasing rate of CCMP wind speed maybe imply a factor of upraising wind speed resulted from its background change of data assimilation. ERA-Interim show that there is no distinct linear trends of increasing and decreasing in sea surface wind variation of China sea from 1985 to 2013. As for the effecting of zonal seas on speedup of sea surface wind of China sea,the consequence of NCEP-DOE is opposite to that of CCMP. CCMP suggests that wind speed increasing of Yellow Sea and Bohai Sea is the strongest among the four zonal seas. However,NCEP-DOE reveals that the wind speed increasing of those areas is the weakest.
出处
《海洋环境科学》
CAS
CSCD
北大核心
2016年第4期587-593,640,共8页
Marine Environmental Science
基金
公益性行业(气象)科研专项(GYHY201306050)
中国气象局气候变化专项(CCSF201427)
