For further details on C2 specific changes, users are requested to refer to this whitepaper on VIIRS C2 Land changes. The C2 land products for SNPP and J1 VIIRS have been generated using Level 1Bs that have been cross-calibrated for selected reflective solar bands (RSB) VIS/NIR and SWIR bands to mitigate the bias in observed top of atmosphere (TOA) reflectance values, and to constrain them within 1%, using MODIS Aqua as the reference. We encourage all users to switch to C2 as soon as they can but definitely before December 7. Please note: All Collection 1 (C1) VIIRS/SNPP BRDF/Albedo products will be decommissioned from nrt3/4 by Thursday, December 7, 2023. The C2 land products are available from the folder 5200 on nrt3/ nrt4.This will include the JPSS NOAA-20 (J1) near real-time (NRT) land products for the first time in LANCE. NRT VIIRS Land products switched to Collection 2 (C2) on October 23, 2023. Subscribe/ Unsubscribe LANCE-MODIS/ VIIRS mailing list.Instructions for scripted/automatic downloads.
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