The 50-year Landsat collection 2 archive

作者：Christopher J. Crawford, David P. Roy, Saeed Arab, Christopher A. Barnes, Eric F. Vermote, Glynn Hulley, Aaron D. Gerace, Mike Choate, Christopher Engebretson, Esad Micijevic, Gail L. Schmidt, Cody Anderson, Martha C. Anderson, Michelle Bouchard, Bruce D. Cook, Ray Dittmeier, Daniel M. Howard, Calli B. Jenkerson, Minsu Kim, Tania Kleyians, Thomas K. Maiersperger, Chase Mueller, Christopher S.R. Neigh, Linda R. Owen, Benjamin P. Page, Nima Pahlevan, Rajagopalan Rengarajan, Jean‐Claude Roger, Kristi L. Sayler, Pat L. Scaramuzza, Sergii V. Skakun, Lin Yan, Hankui K. Zhang, Zhe Zhu, Steve Zahn · 发表于：Science of Remote Sensing · 年份：2023 · DOI：10.1016/j.srs.2023.100103 · 被引用次数：278 · 研究领域：Climate change and permafrost、Geochemistry and Geologic Mapping、Atmospheric and Environmental Gas Dynamics

The Landsat global consolidated data archive now exceeds 50 years. In recognition of the need for consistently processed data across the Landsat satellite series, the United States Geological Survey (USGS) initiated collection-based processing of the entire archive that was processed as Collection 1 in 2016. In preparation for the data from the now successfully launched Landsat 9, the USGS reprocessed the Landsat archive as Collection 2 in 2020. This paper describes the rationale for, and the contents and advancements provided by Collection 2, and highlights the differences between the Collection 1 and Collection 2 products. Notably, the Collection 2 products have improved geolocation and, for the first time, the USGS provides a global inventory of Level 2 surface reflectance and surface temperature products. Also for the first time, the USGS used a commercial cloud computing architecture via Amazon Web Services (AWS) to efficiently process the archive and enable direct cloud access of the Landsat products. The paper concludes with discussion of likely improvements expected in Collection 3 in preparation for the Landsat Next mission that is planned for launch in the early 2030s.