Minimize Level-2A Product Formatting

The Level-2A image data product uses the same tiling, encoding and filing structure as Level-1C.

The Level-2A product has a SAFE format. This groups together several types of file:

  • metadata file (XML file)
  • preview image (JPEG2000 with GML geo-location)
  • tiles files with BOA reflectances image data file (GML / JPEG2000) for each tile
  • datastrip files
  • auxiliary data
  • ancillary data (GIPPs, set of XML files).

Figure 1: Level-2A Product Physical Format

Each pixel value is encoded in 12 bits. The output data of product formatting from Level-2A scene classification are:

  • a scene classification map at 60m resolution
  • quality indicators for snow and cloud detection.

The output data of product formatting from Level-2A scene classification from Level-2A atmospheric correction are:

  • Aerosol Optical Thickness (AOT) map
  • water vapour map
  • surface reflectance (BOA) cube (without cirrus band B10).