Temporal and spatial variation of rainstorm in Gulang County of Gansu Province
Chen Haibei1,2, Yang Xiaoling2,3, Hu Lili3, Li Xiaoxia4, Qiao Qin5
1. Gulang County Meteorological Bureau of Gansu Province,Wuwei 733100; 2. Lanzhou Institute of Drought Meteorology,China Meteorological Administration,Key Laboratory of Drought Climate Change and Disaster Reduction of Gansu Province,Key Open Instructions for Drought Climate Change and Disaster Reduction of China Meteorological Administration Laboratory,Lanzhou 730020; 3. Wuwei City Meteorological Bureau of Gansu Province,Wuwei 733099; 4. Zhouqu County Meteorological Bureau of Gansu Province,Zhouqu 746300; 5. Yongchang County Meteorological Bureau of Gansu Province,Yongchang 733200
Abstract：Based on the daily precipitation observation data of 18 villages and towns in Gulang County,Gansu Province from 2013 to 2022,the precipitation data with daily precipitation ≥30 mm are selected to analyze the spatial and temporal variation characteristics of rainstorm in Gulang County.The results show that there were 35 rainstorms in Gulang County from 2013 to 2022,and the rainstorms showed an increasing trend,with a change rate of about 0.4 times per year,passing the significance test of 0.01.The 77％ of rainstorms occur from June to August in summer,with the highest frequency of rainstorms in August,accounting for 46％.The frequency of rainstorms decreases gradually from south to north,and the frequency of rainstorms is basically consistent with the spatial distribution of rainstorm amount.
陈海贝, 杨晓玲, 胡丽莉, 李小霞, 乔琴. 甘肃省古浪县暴雨时空变化特征[J]. 气象水文海洋仪器, 2025, 42(3): 92-94.
Chen Haibei, Yang Xiaoling, Hu Lili, Li Xiaoxia, Qiao Qin. Temporal and spatial variation of rainstorm in Gulang County of Gansu Province. Meteorological Hydrological and Marine Instrument, 2025, 42(3): 92-94.
2025, Vol. 42 
