Planet Basemaps

Globally available mosaics at a cell size of 4.77 m (at equator) using Mercator projection. <a href="https://www.planet.com/products/planetary-variables/" target="_blank">Planet Basemaps</a> are offered at a weekly, biweekly, monthly, or quarterly cadence and provide a clear, comprehensive view of an area of interest by automating the selection of the best individual images to create a complete, seamless, and recent “mosaic” that allows you to understand change over broad areas. Planet Basemaps are also well suited for machine learning-analytics by applying cloud masking and radiometric normalization to allow for consistent data across large geographic areas of interest.

全球可获取的镶嵌图，采用麦卡托投影，单元格尺寸为4.77米（赤道地区）。Planet Basemaps提供每周、两周一次、每月或每季度的更新频率，通过自动化选择最佳单张影像，为感兴趣的特定区域提供清晰、全面的视图。这些基图能够生成一个完整、无缝且时效性强的“镶嵌图”，帮助用户理解广大区域内的变化。此外，Planet Basemaps亦非常适合于机器学习与分析应用，通过实施云掩膜和辐射度标准化处理，确保在广大地理区域内数据的一致性。