Hydrological drought instantaneous propagation speed (HDIPS): what role the temporary rainfall and temporary rainfall shortage play in the HDIPS

Jiefeng Wu1, Chen Xiaohong2, Huaxia Yao3 and Zhiyong Liu2, (1)Sun Yat-sen University, Guangzhou, China, (2)Sun Yat-Sen University, Guangzhou, China, (3)Ontario Ministry of Environment and Climate Change, Dorset Environmental Science Centre, Dorset, ON, Canada