Landsat Collections: Providing a Stable Environmental Record for Time Series Analysis
Landsat Collections
Landsat Collections ensure that all Landsat Level-1 products contain known data quality.
Previous Landsat Collections
Previous Landsat Collections
In 2016, the USGS reorganized the Landsat archive into a tiered collection management structure titled Landsat Collection 1. This structure ensures that all Landsat Level-1 products provide a consistent archive of known data quality while controlling continuous improvement of the archive and access to all data as they are acquired. The implementation of collections represents a substantial change in the management of the Landsat archive by ensuring consistent quality through time and across all instruments. Collection 1 contains all Level-1 data acquired since 1972 to present from Landsat 1-8. Landsat 9 is only available in Collection 2.
NOTE: Landsat Collection 1 data and products are no longer available to download from the USGS as of December 30, 2022. Landsat Collection 2 remains available. Please access the Landsat Collection 2 webpage for information about Collection 2 data and science products.
Landsat Collection 2 marks the second major reprocessing event of the USGS Landsat Level-1 archive, resulting in several product improvements that harness recent advancements in data processing, algorithm development, and data access and distribution capabilities. A primary characteristic of Collection 2 is the substantial improvement in the absolute geolocation accuracy of the global ground reference dataset used in the Landsat Level-1 processing flow. Additionally, Collection 2 includes updated global digital elevation modeling sources, calibration and validation updates, as well as global Level-2 surface reflectance and surface temperature scene-based products from 1982 to present. Collection 2 contains all Landsat sensors Landsat 1-9.
Visit the Landsat Data Access page to discover how to search and download all Landsat products from USGS data portals.
References
Wulder, M.A., Loveland, T.R., Roy, D.P., Crawford, C.J., Masek, J.G., Woodcock, C.E., Allen, R.G., Anderson, M.C., Belward, A.S., et al., 2019, Current status of Landsat program, science, and applications: Remote Sensing of Environment, v. 225, p. 127–147, at https://doi.org/10.1016/j.rse.2019.02.015.
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This is the third video in a series describing the new U.S. Geological Survey (USGS) Landsat Collection 1 inventory structure. Collection 1 required the reprocessing of all archived Landsat data to achieve radiometric and geometric consistency of Level-1 products through time and across all Landsat sensors.
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