2

Are Sentinel-2 data geometrically corrected or do they need to be georeferenced as an image to image?

What is the best software for processing?

closed as too broad by PolyGeo Oct 11 '17 at 0:20

Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

  • With semi-automatic classification plugin in QGIS you can go all the process from downloading, to correcting, converting to TOA radiance and using them for classification – Elio Diaz Oct 10 '17 at 14:48
5

That depends what processing level you are referring to. Most data is delivered as Level-1C. According to the Sentinel-2 documentation:

Level-1C product provides orthorectified Top-Of-Atmosphere (TOA) reflectance, with sub-pixel multispectral registration. Cloud and land/water masks are included in the product.

Level-0, 1A and 1B are not directly disseminated to users but for completeness:

Level-0 is compressed raw data. The Level-0 product contains all the information required to generate the Level-1 (and upper) product levels.

Level-1A is uncompressed raw data with spectral bands coarsely coregistered and ancillary data appended.

Level-1B data is radiometrically corrected radiance data. The physical geometric model is refined using available ground control points and appended to the product, but not applied.

Not the answer you're looking for? Browse other questions tagged or ask your own question.