Spatiotemporal variability of extreme precipitation at different time scales and quantitative analysis of associated driving teleconnection factors: Insights from Taihu Basin, China
- Resource Type
- article
- Authors
- Dingkui Wang; Zengchuan Dong; Zihan Ling; Feiqing Jiang; Shengnan Zhu; Jian Chen
- Source
- Ecological Indicators, Vol 142, Iss , Pp 109287- (2022)
- Subject
- Extreme precipitation
Trend analysis
Dividing flood sub-seasons
Atmospheric circulation
Taihu Lake basin (TLB)
Ecology
QH540-549.5
- Language
- English
- ISSN
- 1470-160X
The increasing frequency of extreme precipitation (EP) has become an important issue owing to its high degree of destruction. Studies on the spatiotemporal distribution of EP variability and its teleconnection with meteorological factors are extremely important but lacking in the Taihu Lake basin (TLB). Based on the daily precipitation data from 50 hydrological stations in the TLB from 1965 to 2018, we introduced a new circular distribution method to statistically delineate the different flood seasons and assess the spatiotemporal evolution characteristics and future persistence of extreme precipitation indices (EPIs) at different time scales. In addition, geodetector was used to quantify the effects of interactions between meteorological factors on the EPIs changes. The results showed that the EP in the TLB tended to increase significantly (P