SENTINEL-2 products will be made available to users in SENTINEL-SAFE format, including image data in JPEG2000 format, quality indicators (e.g. defective pixels mask), auxiliary data and metadata.
The SAFE format has been designed to act as a common format for archiving and conveying data within ESA Earth Observation archiving facilities. The SAFE format wraps a folder containing image data in a binary data format and product metadata in XML. This flexibility allows the format to be scalable enough to represent all levels of SENTINEL products.
A SENTINEL-2 product refers to a directory folder that contains a collection of information (Figure 1). It includes:
Figure 1: SENTINEL-2 product physical format
LEVEL-2A Data Format
The Level-2A prototype product is an orthorectified product providing Bottom-Of-Atmosphere (BOA) reflectances, and basic pixel classification (including classes for different types of cloud). The generation of this prototype product is carried out by the User from Level-1C products.
The Level-2A image data product uses the same tiling, encoding and filing structure as Level-1C.
The Level-2 product is also in SAFE format, which groups together several types of file:
More information on Level-2A format can be found in the SENTINEL-2 Technical Guide.