Environment Satellite 1 and its application in environmental monitoring

Environment Satellite 1(HJ-1),the first new kind satellite developed by China used for environment and disaster monitoring,was launched in September 2008.This satellite is the milestone of China's environmental technology development and application.This article focuses on the application key technology research and business operations of HJ-1.First,it introduces and analyzes HJ-1 technologic parameters and provides HJ-1 data examples of CCD camera,infrared camera and byper -spectral imager.Furthermore,it analyzes and evaluates HJ-1 data quality in the aspects of geometric accuracy,radiance characteristic and so on.Second,this article proposes the HJ-1 application demand in the fields of large water body environmental remote sensing(RS) monitoring,regional air quality RS monitoring and macro eco-environmental satellite RS monitoring. Based on the demand,this article also designs the HJ-1 application scheme which includes operation flow and data product definitions.Finally,this article uses environmental parameter RS reversing methods to reverse aerosol optical thickness in Beijing -Tianjing-Tanggu(BTT) area and to monitor chlorophyll-a concentration in Chaohu lake.