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Hou, S. M., Sun, J. W., Sun, P. C. et al. (2020). Comparative Analysis of Spatial and Temporal Distribution Characteristics of Extreme Short-Duration Heavy Precipitation in Shandong Province Based on Encrypted Automatic Meteorological Observation Stations and National Meteorological Observation Stations. Meteorology, 46, 200-211. (In Chinese)

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• TITLE: Extreme Short-Term Heavy Precipitation Hazard Zoning Study in Linyi City

  AUTHORS: Zhangchi Cao, Guorong Mao, Wen Zhao, Junyi Shi

  KEYWORDS: Short-Term Heavy Precipitation, Heavy Rainfall, Spatial and Temporal Distribution, Cyclic Variation

  JOURNAL NAME: Journal of Geoscience and Environment Protection, Vol.13 No.7, July 24, 2025

  ABSTRACT: Based on the hour-by-hour precipitation data from national and regional-level surface meteorological automatic stations in Linyi from 2011 to 2020, the statistics of short-term heavy precipitation show the following characteristics:(1) Short-term heavy precipitation in Linyi shows obvious interannual and inter-monthly variations, and its frequency is on the rise after 2015, with the extreme short-term heavy precipitation showing high frequency and high intensity. (2) During the June-September flood season, July is the month with the highest frequency of short-term heavy precipitation, followed by August, with the ratio of short-term heavy precipitation to heavy rainfall reaching 82.2% in August. (3) There is a clear pattern of daily changes in short-term heavy precipitation, with the high incidence concentrated in the late afternoon to evening and early morning. (4) The high-frequency areas of short-term heavy precipitation in Linyi include Hedong District, south-central Yinan County, southern Mengyin County, northwestern Jounan County, southeastern Yishui County, northern Tancheng County, and southeastern Linshu County in Linyi City.