国产卫星影像本底数据更新的实用方案——以地质灾害易发区遥感影像为例

Practical solution for background data update of domestic satellite images:A case study of remote sensing images of geological hazard prone areas

我国国产遥感卫星数据的日渐增多和应用领域的不断扩大,在遥感影像本底数据的更新中正在部分取代进口卫星数据而成为重要信息源。为此,以资源一号(ZY-1)02C和高分一号(GF-1)国产高分卫星影像为主要数据源,提出遥感影像本底数据更新的技术方案;并以全国地质灾害易发区遥感影像本底数据更新为例,验证该方案的适用性。精度检查结果表明,更新后的数据能够满足1∶5万比例尺遥感影像本底数据的平面精度要求,技术方案合理可行,可为规模化开展遥感影像本底数据更新工作、拓宽国产高分卫星数据在地质灾害调查与监测等领域的实际应用提供重要的技术支持,具有一定的推广价值。

With the popularization and application of high resolution remote sensing data of domestic satellite accuracy can meet the plane accuracy requirements of the remote sensing image background data at the 1：50 000 scale. The technical solutions are reasonably practicable, and can provide important technical support for the development of remote sensing image background data update as well as expansion of the domestic satellite data in the field of geological disaster survey and monitoring and other fields. It has certain popularization value.