基于全球风场产品中国海表面风速变化分析

发布时间：2018-04-24 05:22

本文选题：海表面风 + 变化趋势　；参考：《海洋环境科学》2016年04期

【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。
[Abstract]:Based on three global wind field products, CCMP ERA-Interim and NCEP-DOE, the variation of wind speed over China's sea surface from 1985 to 2013 is analyzed by using linear trend test and variability coefficient. The results show that there are differences in the trend of sea surface wind change and the intensity of regional variation in different wind field products. Both CCMP and NCEP-DOE show that the annual average wind speed of the China Sea surface is significantly and linearly enhanced. The rapid increase of the wind speed of 0.050 m / s a and 0.015 m / s / a of CCMP may imply that the wind speed uplift caused by the change of the background field of data assimilation may not show that the wind speed on the surface of the China Sea has a linear strengthening or weakening trend during the period from 1985 to 2013. In terms of the contribution of the Yellow Sea and Bohai Sea to the sea surface wind growth in China, the results of NCEP-DOE and CCMP show that the Yellow Sea and Bohai Sea have the strongest wind speed increase in the four regions of China, while the NCEP-DOE shows that the wind speed increase is the weakest in this area.
【作者单位】：浙江省气候中心;金华市气象局;
【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)
【分类号】：P732

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