环渤海区域再分析资料地面风速场的适用性对比分析
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公益性行业(气象)科研专项(GYHY201306034)


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Comparative analysis of wind velocity of reanalysis datasets over the Bohai Rim Region
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    摘要:

    利用环渤海区域的气象站资料和NCEP/NCAR、NCEP/DOE、CFSR、ERAInterim、JRA-55共5种再分析资料,讨论了再分析资料近地面10 m平均风速场在环渤海区域的适用性问题。结果表明:JRA资料与观测站的相关系数最大,ERA资料与23站均方根误差的平均最小;再分析资料与气象站观测资料的相关系数在山东半岛和辽东半岛高于其他地区、冬半年大于夏半年。环渤海区域地面10 m平均风速场JRA和ERA两套资料的适用性较好。由于ERA-Interim的水平分辨率更高,所以在强风过程分析中确定使用ERAInterim再分析资料。

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    Using weather stations and reanalysis data of NCEP/NCAR, NCEP/DOE, CFSR, ERA-Interim and JRA-55, the applicability evaluation of the ground wind velocity over the Bohai Rim Region is conducted in this paper. Results showed as follows: JRA dataset has the highest correlation coefficient with weather stations observations, and ERA dataset has the smallest average root mean square error compared with observations of 23 weather stations. The correlation coefficients are higher in the Shandong and Liaodong Peninsulas than in other areas and also higher in winter half year than in summer half year. Results indicate that the JRA and ERAinterim ground wind velocities have better evaluation applicability over the Bohai Rim Region, and on account of higher horizontal resolution, ERA-interim dataset is selected to use in the strong gale process analysis.

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陈艳春,王娜,顾伟宗,汤子东,刘焕彬,孟祥新,伯忠凯.环渤海区域再分析资料地面风速场的适用性对比分析[J].海洋气象学报,2017,37(1):67-72.

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  • 在线发布日期: 2017-03-31
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