基于多源数据和三重匹配方法的风云三号风场测量雷达海面风场精度分析

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中图分类号：P412.6 文献标志码：A 文章编号：2096-3599（2025）03-0062-10

DOI： 10.19513/j.cnki.hyqxxb.20241206001

AbstractBased on the needs for accurate analysis of the wind field data of the wind radar（WindRAD） onboard Fengyun-3E（FY-3E），this paper uses multi-source data from buoy stations，numerical prediction model and satelites to evaluate thequality ofFY-3E WindRAD wind field products with all wind speeds in multiple dimensions.The additive，multiplicative and random errors of 4 independent observation sources are analyzed by using the triple colocation （TC）method. Taking the buoys as an unbiased observation source，it can be found from the eror analysis of multi-source data that the negative deviation of the additive eror of FY-3E WindRAD C-band wind speed is larger，the deviation of Ku -band and dual-band wind speed is similar，the multiplicative error of C-band is the smallest，and their random erors are similar. Among the independent sources，the root mean square errors （RMSEs）of the buoys are the smallest，the two satelite products are similar and larger than those of the buoys，and the RMSEs of the model are the largest. In summary，FY-3E WindRAD can provide high-precision wind field products，but the main problem is that the consistency of products in different datasets needs to be optimized.The research results of the accuracy of satelite products based on multi-source data in this paper can provide more comprehensive and reliable information for satellite product users，and provide a basis for objective calibration methods for predicting sea surface wind field by numerical models.

Keywordswind radar（WindRAD）；satelite observation； sea surface wind； triple collocation （TC）method

0 引言

海面风场对于海洋气象灾害（包括台风、温带气旋与风暴潮等）的发生有直接或间接联系，且海上大风往往会给船舶运输、港口作业与海洋平台生产带来较大经济损失。（剩余12567字）