Minimize SYN Level-1 Format

The SYN Level-1 product is composed of one packet not provided to the user, the SY_1_MISR product. It is composed of one information package map, also called a manifest, and several annotation data files.

The manifest file is written in XML format and gathers general information concerning the product and processing. The annotation data files are written in netCDF 4 format, and include dimensions, variables and associated attributes.

The SY_1_MISR package includes 26 to 36 files. All these files are misregistration ones, containing the correspondence/collocation grids between OLCI/SLSTR L1b grids and SYN Level 2 reference grid:

  • One misregistration dataset for each of the computed OLCI channels Oa1 – Oa21. The computation of absorption channels, unused in SYN Level 2 (Oa14, Oa15 and Oa20) can be disabled by a dedicated switch
  • One misregistration dataset for each of the computed SLSTR channels S1 – S9, F1, F2, associated with nadir view. The computation of Thermal/Fire channels, unused in SYN Level 2 (S7 to S9, F1, F2) can be disabled by a dedicated switch
  • One collocation dataset for each of the computed SLSTR grids associated with oblique view, The computation of stripe B and of the 1 km grid can be disabled by a dedicated switch