Extreme Rainfall Event Analysis Using Rain Gauges in a Variety of Geographical Situations

• 作者: Claudio Lucianaz Marco Allegretti Silvano Bertoldo
• 来源期刊: 大气和气候科学(英文)
• 学科: 地球科学
• 关键词: Rain GAUGES EXTREME Rainfall Events Generalized EXTREME Value GEV
• 年，卷（期）: dqhqhkxyw,（2）
• 页码范围: 82-90
• 页数: 9页
• 分类号: P4

摘要

About 30 years of measurements made by the rain gauges located in Piedmont (Italy) have been analyzed. Rain gauges have been divided into 4 datasets considering the complex orography near Turin, namely the flatlands, mountains, hills and urban areas. For each group of gauges, the Generalized Extreme Values (GEV) distributions are estimated considering both the entire dataset of available data and different sets of 3 years of data in running mode. It is shown that the GEV estimated parameters temporal series for the 3 years dataset do not present any specific trend over the entire period. The study presented here is preliminary to a future extreme rainfall event analysis using high temporal and spatial resolution X-band weather radar with a limited temporal availability of radar maps covering the same area.