Landsat Collection 2: Product Improvements and Distribution

Authors: Nathan Roberts*, KBR, Michelle Bouchard, KBR, Jacob Savoy, C2G
Topics: Remote Sensing, Land Use and Land Cover Change, Remote Sensing
Keywords: Landsat, Remote Sensing, Land use, Land Change, Earth Imaging
Session Type: Virtual Guided Poster
Day: 4/9/2021
Start / End Time: 3:05 PM / 4:20 PM
Room: Virtual 53
Presentation File: Download

Released in December 2020, Landsat Collection 2 marks the second major reprocessing of the Landsat archive by the U.S. Geological Survey (USGS). Landsat Collections ensure that all Landsat Level-1 data are consistently calibrated, processed and retain traceability of data quality provenance. This reprocessing event harnessed recent advancements in data processing, algorithm development, as well as data access and distribution capabilities to substantially enhance Landsat data products. Improvements to the archive include improved geometric accuracy, updated global digital elevation modeling sources for improved terrain correction, and other calibration updates. Collection 2 includes Landsat Level-1 data for all sensors since 1972, along with a standing inventory of global surface reflectance and surface temperature data from 1982-present. Collection 2 products are processed in a Cloud-Optimized Geospatial Tagged Image File Format (GeoTIFF) (COG) format and stored unbundled. This allows users to download only the band files including metadata of the product they need; however, bundled products for Level-1 and Level-2 data are also available to download. Collection 2 products are distributed via EarthExplorer, the Bulk Download Application (BDA), the Machine to Machine (M2M) Application Programming Interface (API) and will be available in LandsatLook 2.0 upon its release. In addition, Collection 2 products are discoverable via the Amazon Web Services (AWS) commercial cloud environment. In this poster we will communicate the improvements to Landsat Collection 2 as well as how to access the products.

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