How can I tell the difference between Landsat Collections data and Landsat data I have downloaded in the past?
Data that is processed to meet Collections specifications has a Landsat Product Identifier, as opposed to the historical Landsat Scene ID. Along with information inherited from the Scene ID, the Landsat Product Identifier includes the processing level, processing date, collection number, and collection category (bolded below).
| Scene ID | Landsat Product Identifier |
|---|---|
| LXSPPPRRRYYYYDDDGSIVV | LXSS_LLL_PPPRRR_YYYYMMDD_yyyymmdd_CC_TX |
| L = Landsat X = Sensor S = Satellite PPP = WRS path RRR = WRS row YYYY = Year DDD = Julian day of year GSI = Ground station identifier VV = Archive version number |
L = Landsat X = Sensor (C=OLI?TIRS Combined, O=OLI-only, T=TIRS-only, E=ETM+, T=TM, M=MSS) SS = Satellite (07=Landsat 7, 08=Landsat 8) LLLL = Processing correction level (L1TP=Precision Terrain, L1GT=Systematic Terrain, L1GS=Systematic) PPP = WRS path RRR = WRS row YYYYMMDD = Acquisition year (YYYY)/Month (MM)/Day (DD) yyyymmdd = Processing year (yyyy)/Month (mm)/Day (dd) CC = Collection number (01, 02) TX = Collection category (RT = Real-Time, T1=Tier 1, or T2=Tier 2) |
| Examples: LC80290302015343LGN00 LE70160392004262EDC02 LT40170361982320XXX08 LM10170391976031AAA01 |
Examples: LC08_L1GT_029030_20151209_20160131_01_RT LE07_L1TP_016039_20040918_20160211_01_T1 LT04_L1TP_017036_19821116_20200918_02_T1 LM01_L1GS_017039_19760131_20160225_01_T2 |
The historical scene ID is listed in the metadata file (MTL.txt) delivered with the Level-1 data product, and is also visible and searchable (along with the Landsat Collection Product ID) in the online metadata on EarthExplorer.
Learn more: Landsat Collections
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I have a list of historical Landsat Level-1 Scene IDs; how can I determine the corresponding Landsat Collections Level-1 Product Identifier? I have a list of historical Landsat Level-1 Scene IDs; how can I determine the corresponding Landsat Collections Level-1 Product Identifier?
The historical Landsat Level-1 Scene ID is in the EarthExplorer metadata. After entering a search using the historical Scene ID, the Landsat Level-1 Collection 1 Product Identifier will be returned in the search results. The results can be exported from EarthExplorer in a variety of formats for metadata parsing. We also encourage use of the Bulk Metadata Service to download files that contain both...
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I have a list of historical Landsat Level-1 Scene IDs; how can I determine the corresponding Landsat Collections Level-1 Product Identifier? I have a list of historical Landsat Level-1 Scene IDs; how can I determine the corresponding Landsat Collections Level-1 Product Identifier?
The historical Landsat Level-1 Scene ID is in the EarthExplorer metadata. After entering a search using the historical Scene ID, the Landsat Level-1 Collection 1 Product Identifier will be returned in the search results. The results can be exported from EarthExplorer in a variety of formats for metadata parsing. We also encourage use of the Bulk Metadata Service to download files that contain both...
What are Landsat Collection Tiers? What are Landsat Collection Tiers?
Landsat Collection Tiers are the inventory structure for Level-1 data products and are based on data quality and level of processing. The tier definition purpose is to support easier identification of suitable scenes for time-series pixel-level analysis, and provide temporary data that are processed immediately upon downlink to be dispensed quickly in emergency response situations with limited...
What are Landsat Collections? What are Landsat Collections?
In 2016, the USGS reorganized the Landsat archive into a tiered collection. This structure ensures that Landsat Level-1 products provide a consistent archive of known data quality to support time-series analyses and data “stacking”, while controlling continuous improvement of the archive and access to all data as they are acquired. Learn more: Landsat Collections Landsat Data Access