Zhang, Qiang; Li, Jianfeng; Singh, Vijay; Bai, Yungang - In: Natural Hazards 64 (2012) 1, pp. 481-492
Daily precipitation data for 1957–2009 from 53 stations in the Xinjiang, China, are analyzed, based on the Standardized Precipitation Index (SPI) with the aim to investigate spatio-temporal patterns of droughts. The Mann–Kendall trend test is used to detect the trends in the SPI values of...