中国及周边地区长时序Landsat系列卫星星上反射率（TOA）产品集

中国及周边地区长时序Landsat系列卫星星上反射率（TOA）产品集是基于中国卫星遥感地面站存档的Landsat系列数据得到的，空间分辨率为30m，时间范围为1980s-2021年，包含星上反射率波段（Landsat5/7星上反射率波段为B1, B2, B3, B4, B5, B7；Landsat5/7星上反射率波段为B1, B2, B3, B4, B5, B6, B7）、QA、元数据xml以及缩略图等文件内容，为了节省存储空间，将结果乘以了10000，存储成16位，并进行了LZW无损压缩。

The long-term time series Landsat top-of-atmosphere (TOA) reflectance product set over China and its surrounding regions is derived from Landsat series data archived by China's satellite remote sensing ground stations. It has a spatial resolution of 30 m, with temporal coverage spanning from the 1980s to 2021. The product set includes top-of-atmosphere reflectance bands: for Landsat 5/7, the available bands are B1, B2, B3, B4, B5, B7; and for Landsat 5/7, the bands are B1, B2, B3, B4, B5, B6, B7, as well as QA bands, metadata XML files, thumbnails and other associated files. To reduce storage consumption, the reflectance values were multiplied by 10000, stored as 16-bit data, and compressed using LZW lossless compression.