![]() Landsat 8, Collection 2, Tier 1 only, SR, and LST Landsat 8, Collection 1, Tier 1 only, TOA Landsat 8, Collection 1, Tier 1 + Real Time, TOA The collection ID for TOA and SR/LST collections using Landsat 8 data as an example. Reflectance), SR (surface reflectance), and LST (land surface temperature) products are offered. InĪddition, for each collection that contains T1 or T2 images, TOA (top-of-atmosphere To removals or potentially mis-registered scenes, you might want to stick to the T1Ĭollection, but in general, it's very uncommon that any misregistration is large enough toĮach of the above collections contains the raw data (i.e., scaled, at-sensor radiance). Reprocessed and categorized as either T1 or T2, it will be removed from the T1_RT collectionĪnd the new version will be added to the appropriate collection(s). Newly acquired scenes are added to the T1_RT collection daily. Landsat 8, Collection 1, Tier 1 + Real Time Grouped the scenes into collections by tier and satellite. To allow access to both the validated T1 data and the newest real-time data together, we've USGS documentation on Collection 1 Tiers for more information. Real Time (RT) - Data that hasn't yet been evaluated (it takes as much as a month).Tier 2 (T2) - Data that doesn't meet the Tier 1 requirements.Tier 1 (T1) - Data that meets geometric and radiometric quality requirements. ![]() The USGS produces data in 3 tiers (categories) for each satellite:
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |