Variation Characteristics of Droughts and Floods in Deyang Area in the Past 30 Years
刊名 Meteorological and Environmental Research
作者 Zhili ZHANG*
作者单位 Inner Mongolia Aviation Administration of Civil Aviation Administration of China, Hohhot 010000, China
DOI 10.19547/j.issn2152-3940.2023.06.005
年份 2023
刊期 6
页码 29-32,39
关键词 Drought and flood; Precipitation anomaly percentage; Deyang, Sichuan
摘要 Based on the data of annual average precipitation in Deyang area and its five stations (Mianzhu, Deyang, Zhongjiang, Shifang and Guanghan) from 1984 to 2013, the annual precipitation anomaly percentage was calculated, and then the flood and drought situation in Deyang area was graded to discuss the variation characteristics of droughts and floods in the past 30 years. The results show that the cycle of droughts and floods in Deyang was about 3-5 a. The precipitation anomaly percentage indicates that the climate in Deyang area of Sichuan tended to be dry slowly in the past 30 years, and Deyang gradually entered a dry and warm period.