Temperature variation and winter planted potato's NDVI change during early 2016's super cold wave in Guangdong province, South China

under the background of climate warming, obvious decrease trend in frequency and intensity of cold wave that invaded Guangdong province, South China have been observed in recent years. However in January of 2016, a named “super cold wave” which caused serious influence on human health and agriculture production invaded Guangdong. In this paper, satellite derived land surface temperature (LST) from GCOM-W1/AMSR2 brightness temperature (TB) were retrieved. Based on the satellite-derived LST, its variation characteristic was analyzed, which showed an apparent decrease trend and increase trend in Guangdong province during the whole “super cold wave” process. Moreover, based on NDVI retrieved from HJ-1 A/B satellite's CCD sensors, obvious declination of potato's NDVI after the “super cold wave” can be seen: nearly 89% area of potato's NDVI decreased reflecting great loss on potato's production which was confirmed by in situ investigation. This study demonstrated that multi-sources satellite remote sensing data have the capability of monitoring temperature change in cold wave and assessing crop loss after cold injury.