Drought analysis based on a cluster Poisson model: distribution of the most severe drought

Climate Research

Ana Carmen Cebrián¹  Jesús Abaurrea¹ 

关键词: Drought analysis;    Poisson cluster process;    Maximum in a random size sample;    Threshold methods;    Extreme values;   

DOI  :  10.3354/cr022227

来源: Inter-Research Science Publishing

【 摘 要 】

ABSTRACT: This work aims to characterize the largest drought event to occur in a given period of time. A Poisson cluster process is used to model drought occurrence and a vector of 3 random variables (duration, deficit and maximum intensity) to describetheir severity. Some results on the distribution of the maximum in a random size sample are developed in order to describe the largest drought events.

【 授权许可】

Unknown