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Development of a real-time hourly wind gust product at 1 km resolution over China
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Zhihong LIAO1, Chunxiang SHI1, Dongbin ZHANG1, Junxia GU1, Shuai HAN1, Tao ZHANG1, Bin XU1, Hongkui ZHOU2, Yanqin XU3
Acta Meteorologica Sinica | 2025, 83(5) : 1329 - 1338
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Acta Meteorologica Sinica | 2025, 83(5): 1329-1338
• Data Paper •
Development of a real-time hourly wind gust product at 1 km resolution over China
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Zhihong LIAO1, Chunxiang SHI1, Dongbin ZHANG1, Junxia GU1, Shuai HAN1, Tao ZHANG1, Bin XU1, Hongkui ZHOU2, Yanqin XU3
Affiliations
  • 1.National Meteorological Information Centre，Beijing 100081，China
  • 2.Xinjiang Meteorological Information Center，Urumqi 830002，China
  • 3.Inner Mongolia Meteorological Data Center，Hohhot 010051，China
Published: 2025-10-10 doi: 10.11676/qxxb2025.20240117
Outline
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To meet the need for weather forecasting, strong convection monitoring and warning services, an hourly 1 km wind gust product across China has been produced using hourly wind gust observations and model forecast data. These data are adopted after the procedure of quality control, space-time matching and fusion analysis. This product is updated at a 5 min lag with the overall RMSEs of 1.9 m/s for independent test and 0.68 m/s for the non-independent test. The results indicate that as the wind speed increases, the number of samples continuously declines, there is a relatively pronounced tendency for the product's error to rise, and the accuracy gradually decreases. However, the quality of this product improves effectively compared to model predictions of high speed of wind gusts. Specifically, the accuracy of wind speed above magnitude 9 has improved by 89.3%, and the relative error has dropped significantly with a reduction ratio of about 27.4%. The development of this product can support disaster mitigation and decision-making related to catastrophic gales and typhoons.

Wind gust  /  Multi-source fusion  /  Model forecasts
Zhihong LIAO, Chunxiang SHI, Dongbin ZHANG, Junxia GU, Shuai HAN, Tao ZHANG, Bin XU, Hongkui ZHOU, Yanqin XU. Development of a real-time hourly wind gust product at 1 km resolution over China[J]. Acta Meteorologica Sinica, 2025 , 83 (5) : 1329 -1338 . DOI: 10.11676/qxxb2025.20240117
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Year 2025 volume 83 Issue 5
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Article Info
doi: 10.11676/qxxb2025.20240117
  • Receive Date：2024-09-23
  • Online Date：2026-03-27
  • Published：2025-10-10
Article Data
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History
  • Received：2024-09-23
  • Revised：2025-03-05
Funding
Affiliations
    1.National Meteorological Information Centre，Beijing 100081，China
    2.Xinjiang Meteorological Information Center，Urumqi 830002，China
    3.Inner Mongolia Meteorological Data Center，Hohhot 010051，China
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https://castjournals.cast.org.cn/joweb/qxxb/EN/10.11676/qxxb2025.20240117
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