Sentinel-2 imagery granules downloaded from AWS archives (http://sentinel-pds.s3-website.eu-central-1.amazonaws.com) have a little different data structure than the original granule sub-folders of ESA SAFE product. Consequently, it seems the SNAP tool seems not able to import the data as one product with metadata - and I need to process the data to level 2 (atmospherically corrected ground reflectance). Is there a way? Or is there a site which allows downloading individual granules in original SAFE data structure?
Thanks to marcusN who pointend me to the ESA announcemet: https://scihub.copernicus.eu/news/News00092 There will be format change shortly, which means also, that the product will be delivered on per tile (granule) basis on ESA data hub.
You can download Sentinel-2 data in
.SAFE format on a per-granule basis from Google:
Bonus: Downloading of all available granules or searching for data can be scripted with
gsutil or any other library that talks to the Google Storage API.
You can use this Python package that downloads S-2 products from AWS into
.SAFE format: https://github.com/sinergise/sentinelhub