Objectives : Climate change is a great concern in East Asia. With the proposed global warming likely to increase drought frequency, effective drought monitoring methods are critical and can be used to implement policies in a timely manner. Therefore, the main objectives of the paper were: (1) to evaluate the performance of the widely used drought indices NDVI, NVSWI, VCI, TVDI, VHI, and NPA in different growing seasons, so that these indicators can be used to study drought with greater confidence; (2) to study the effect of drought on seasonal variations of vegetation in relation to climate variability, and determine which growing seasons is most vulnerable to drought risk; and (3) to explore the spatio-temporal evolution of the trend in drought changes in East Asia from 1982 to 2019.
Type : research
Status: completd
