All ASTER Level 1A and Level 1T scenes have been reassessed for cloud cover using the MODIS Version 6.1 cloud mask. As a result, about 1% of all ASTER Level-1A and Level-1T scenes show a cloud-coverage change of 25% or larger. Scenes acquired in high and low latitude zones show the most significant changes.
The data are available for download through NASA Earthdata Search.
Please contact LP DAAC User Services (firstname.lastname@example.org) with any questions.