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.