Abstract: Launched in April 2013, Gaofen-1 satellite is the first high-resolution earth observation system. Its data are mainly used now in the fields of land, agriculture and environment. Gaofeng-1 produces data of three different resolutions including panchromatic data (2 m) and spectral data (8 m and 16 m). As the main application unit of the agricultural sector, the Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences has free, real-time access to relevant data. After the atmospheric and radiation correction, geometric correction and projection transformation, data are interpreted based on “Landuse Status and Classification Standards (GB-T21010-2015)” issued by the Ministry of Land and Resources, whereby summary statistics of land classification are obtained through image analysis. To date, landuse extraction and classification (2016 – 2017) has been preliminarily completed for 16 provinces, resulting in a landuse map and landuse statistics based on administrative units. Compared with the MODIS-derived landuse data obtained by the Institute of Geographic Science and Resources, Chinese Academy of Sciences, this data set has a higher resolution and a timely characteristic, and it provides better service for administrative and research units.
Keywords: high-resolution satellite; remote sensing interpretation; landuse; data sharing