Summary of Advance on Drought Study in Southwest China
Extreme climate events such as heavy drought were increasing under the background of global climate change. The intensity and area of drought increased continually in recent years in China, and drought events began to develop from arid and semi - arid regions to humid area. There were abundant rainfall and humid climate in Southwest China, but in recent years, severe drought events lasting for several years occurred there, which caused huge damage to local social economy and attracted widespread interest. Many researchers studied about southwestern drought events, they tried to find occurrence regularity, characteristics and formation mechanism through analysis of temporal and spatial distribution of precipitation and temperature in southwest China, atmospheric circulation and weather system; some researchers studied about monitoring system for southwestern drought by using drought index and satellite remote sensing and so on. In this paper, based on investigating a large amount of related documents, we had a summarization and commentary about the recent study achievements of southwestern drought and tried to offer reference to the study on the drought of southwest and e-ven other regions, and offer help to drought disaster prevention and reduction.