Landsat 7 Data Sets

Landsat represents the world's longest continuously acquired collection of space-based moderate-resolution land remote sensing data. Four decades of imagery provides a unique resource for those who work in agriculture, geology, forestry, regional planning, education, mapping, and global change research. Landsat images are also invaluable for emergency response and disaster relief.Landsat系列构成了全球持续获取时间最长的基于太空的适中型分辨率陆地遥感数据集。四十年的影像资料为从事农业、地质学、林业、区域规划、教育、制图以及全球变化研究等领域的工作者提供了独特的资源。Landsat影像在应急响应和灾后救援方面也具有极高的价值。