The Research of AOT Quantitative Retrieval in Beijing with Landsat/7 ETM data
The first band (0.45-0.52 μm) of two landsat7/ETM high resolution images are used in an effort to assess spatial distribution of AOT (Aerosol Optical Thickness) by improved DTA (Different Texture Analysis) method. Atmospheric correction process for reference image and cloud mask process for two images were added to original DTA method. Retrieved AOT result is compared with MOD4_L2 products provided by NASA. Results showed that the concentration spatial distribution of AOT in Beijing can be preferably described quantitatively by improved DTA method. In the end, Limitations and improvements of the DTA method need to be done were discussed.
DTA method AOT spatial distribution air pollution Beijing
Yaoting Wang Yingchun Wang Qiao Wang
Institute of Urban Meteorology, CMA, Beijing 100089, China Key lab. of Jiangsu Province, College of Geographic Information Science, Nanjing Normal University,
国际会议
上海
英文
4019-4025
2008-05-16（万方平台首次上网日期，不代表论文的发表时间）