Urban Surface Aerosol Monitoring Using DDV Method from MODIS Data
利用MODIS数据监测北京地区气溶胶

Taking Beijing area as an example,the aurban surface aerosol optic thickness has been tried to retrieve using DDV (Dark Dense Vegetation) method from MODIS level1B data. Firstly, the LUT (Look Up Table) is built by 6S, the dark dense pixel is checked based on NDVI and the retrieved AOD (Aerosol Optical Depth) is validated using the CE318 measurements from AERONET (Aerosol Robotic NETwork). The results show the DDV method can be used to monitor the urban aerosol very well during the summer and autumn in Beijing, but it losses its power in the winter.