多种再分析风产品在环渤海地区的适用性评估
作者:
作者单位:

1.沧州市气象局,河北 沧州 061001 ;2.河北省气象台,河北 石家庄 050000 ;3.沧州市海洋和港航管理局,河北 沧州 061001

作者简介:

朱锐,342093051@qq.com。

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中图分类号:

P468

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Applicability evaluation of multiple reanalysis wind products in the Bohai Rim region
Author:
Affiliation:

1.Cangzhou Meteorological Service, Cangzhou 061001 , China ; 2.Hebei Meteorological Observatory, Shijiazhuang 050000 , China ; 3.Cangzhou Marine and Port Administration Bureau, Cangzhou 061001 , China

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    摘要:

    聚焦于环渤海地区,以地面气象观测站、浮标站及海上平台等1 324个站的逐小时风观测数据为基准,对2022—2023年中国气象局高分辨率陆面数据同化系统(High Resolution China Meteorological Administration Land Data Assimilation System,HRCLDAS)平均风产品和多源融合极大风实况分析1 km分辨率产品(Analysis of Real Time,简记为“ART_1km”)展开适用性评估。结果显示:HRCLDAS风产品月平均绝对误差在0.4 m·s-1左右,海上站点的误差偏大,风速低估现象更为明显,但2023年数据质量有了显著提升。同期,平均风向的准确率在75%~90%,考虑小风时部分站点准确率低于60%的情况与地形有关。在极大风方面,当风力大于或等于6级时,站点观测的风力越大,ART_1km偏小程度越高。风力在8~9级时,非独立站点和独立站点的ART_1km值与实测风速的日平均绝对误差在2~4 m·s-1;风力在10~11级时,非独立站点该误差为4.5~5.5 m·s-1

    Abstract:

    Focusing on the Bohai Rim region, the study carries out an applicability evaluation for the mean wind products of the High Resolution China Meteorological Administration Land Data Assimilation System (HRCLDAS) and the 1-km-resolution products of the multi-source fused extreme wind real-time analysis (Analysis of Real Time, ART_1km) from 2022 to 2023. The evaluation is based on the hourly wind observation data from 1 324 meteorological stations, including surface automatic stations, buoy stations and offshore platforms. The results are shown below. The monthly mean absolute error of the HRCLDAS wind products is around 0.4 m·s-1. The errors of offshore stations are relatively large, and the phenomenon of wind speed underestimation is more obvious, while the data quality in 2023 significantly improves. During the same period, the accuracy rate of the mean wind direction is between 75% and 90%, and the situation when the accuracy rate of some stations is lower than 60% during light winds is related to the terrain. In terms of extreme wind, when the wind is Beaufort wind force scale 6 or above, the stronger the wind observed at stations, the greater the degree to which ART_1km underestimates. For winds of Beaufort wind force scale 8-9, the daily mean absolute errors between the ART_1km values and wind speed observations at both non-independent and independent stations range from 2 to 4 m·s-1; for winds of Beaufort wind force scale 10-11, the errors reach 4.5-5.5 m·s-1 at non-independent stations.

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朱锐,王玉虹,王晓乐.多种再分析风产品在环渤海地区的适用性评估[J].海洋气象学报,2025,45(6):106-117.

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  • 收稿日期:2025-02-16
  • 最后修改日期:2025-07-11
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  • 在线发布日期: 2025-12-19
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