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May 18, 2023

The effort to reprocess all Landsat 9 data held in the USGS EROS Archive since launch is now completed, and for the first time, has enabled the availability of Landsat 9 Level-3 Science Products.

As reported in previous Landsat Missions headlines, the reprocessing effort took advantage of calibration updates identified by the USGS/NASA Calibration and Validation team.  For science and application users, the overall impact of calibration updates on the atmospherically compensated Level-2 Surface Reflectance and Surface Temperature products is minor.   

Collection 2 Landsat 9 Dynamic Surface Water Extent (DSWE) NC

Users are encouraged to review all improvements and impacts to determine if their existing Landsat 9 data should be replaced with the newly reprocessed data. *Reminder: The Product Identifier for each Landsat 9 product displays a new processing date – reprocessed products have a processing date that is March 7, 2023, or later. 

The products processed and replaced in the archive include all Landsat Collection 2 Level-1 scenes and U.S. Analysis Ready Data (ARD) products, as well as Level-2 surface reflectance and surface temperature products.  

Landsat 9 Level-3 science products created for the first time during this effort include the following:  

  • Dynamic Surface Water Extent (DSWE) 

  • Fractional Snow Cover Area (fSCA) 

  • Burned Area (BA) 

Updated fSCA Statistics products will complete processing by Friday, May 19th. 

All Landsat products are available for download from EarthExplorer and the Commercial Cloud

Please contact USGS EROS Customer Services with any questions about the reprocessed data and Level-3 science products.  


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