THEIA S1TILING SENTINEL L1
S1TILING L1 products are based on Sentinel-1 Level-1 Ground Range Detected (GRD) products which are ortho-rectified on Sentinel-2 grid to promote joint use of both missions. These products are supplied in 110x110 km² tiles, spaced every 100 km. The tiles therefore have an intersection zone of 10km on each side with neighboring tiles. This breakdown into tiles is the one used by Sentinel-2 level 2 products. Each product is an ortho image rectified to 10m x 10m pixels on the tile, calibrated in sigma0, with thermal noise subtracted. For a given tile, there is one product per relative orbit, polarization and date. Ortho rectification is calculated using Copernicus DEM. Auxiliary data will be supplied to obtain gamma0-calibrated products in post-processing.
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