The changing characteristics of aerosol optical depth in South east China is analyzed using data derived from CALIPSO lidar

during the period from June to February in the next year. Spaceborne lidar can help to acquire global-scale data of the aerosol’s optical properties. This paper presents the differences between marine aerosol and continental aerosol and the causes are discussed. Furthermore

the aerosol optical depth change with height and its distribution characteristics in these areas are depicted. This information will provide an exhaustive reference for future research into weather forecasting and climate change

as well as in the analyses of the relationships of weather

climate and aerosol.