The information provided in this page is applicable to the latest AATSR Level 1B products.

The latest products are from the Fourth (A)ATSR Reprocessing, completed in 2022. This introduced some key improvements:

• Generation of new AATSR Level 1B products in SLSTR-like format (NetCDF4)
• Improved AATSR nadir−oblique view colocation
• Improved surface classification via use of the Sentinel-3 Land Water Masks
• New Uncertainty Estimates
• AATSR L1B products are now ortho-geolocated to a DEM for the first time
• AATSR 12 Micron Channel Discrepancy correction is now included in the dataset

AATSR Technical Documents

The following documentation is available for the Sentinel/SAFE-like format Level 1B products:

• User guide for 4th reprocessing products users: User Documentation for (A)ATSR 4th Reprocessing Products.
• Level 1B Product Specifications: FAST Level 1b Product Definition PO-TN-RAL-AT-0568 Issue 1.4
• Level 1B Product Notice Readme File: QA4EO-OQC-MEM-VEG-5019 - AATSR Product Notice Readme for ENV_AT_1_RBT ​​​

AATSR Product Availability

Information on AATSR products and how to access them is given in the Product Availability section.

Level 2 Products

Fourth Reprocessing Level 2 products will be generated by the ESA CCI SST and LST teams in their own time frame.

Third Reprocessing Dataset Information

Third Reprocessing products are currently available on the NEODC archive via CEDA. Note that these products have been superseded by both the Fourth Reprocessing dataset and products from the ESA CCI teams. Information has been retained here for reference.

• AATSR Averaged Surface Temperature (AST) Product
• AATSR Gridded Surface Temperature
• AATSR L2P/L3U products
• AATSR Level 2 LST products from UOL
• AATSR Level 3 Products from ARC
• AATSR Level 3 Products from the University of Leicester
• AATSR Meteo product

The following documentation refers to the Third Reprocessing SST L2P/L3U products:

• SST L2P/L3U Product User Guide: (A)ATSR ARC_L2P Product Guide Issue 1.3
• Product Specifications: PO-RS-MDA-GS-2009 Volume 07 Issue 4C

The following documentation refers to the Third Reprocessing UOL LST products:

• UOL LST Product User Guide (A)ATSR_UOL_LST_L2_User_Guide_v1-0