Contents
How is the geometric transformation used in Sentinel-2?
The geometric transformation allows linking of the points of the target image with the points of the initial image. For SENTINEL-2, a resampling grid is used and computed for each spectral band and each detector. For each tile, there are 13 by 12 resampling grids.
How is the resampling grid used in Sentinel-2?
For SENTINEL-2, a resampling grid is used and computed for each spectral band and each detector. For each tile, there are 13 by 12 resampling grids. The values of the resampling grid are computed for the footprint of the detector plus a small margin by extrapolation of the viewing directions.
When did the Sentinel-2 Level 2A algorithm become operational?
The SENTINEL-2 Level-2A processing provides Level-2 products (BOA reflectance) from Level-1C products (TOA reflectance). From the middle of March 2018, the Level-2A became an operational product, beginning with coverage of the Euro-Mediterranean region, with a gradual ramp-up to systematic worldwide coverage planned for the summ er of 2018.
How to identify bare soil in MSI Sentinel 2?
Pixels with a cloud probability higher than zero pass to step 5. This process identifies bare soils and bright water/lake pixels via two steps. This step allows identification of bare soil pixels using a threshold on the band 2/band 11 reflectance ratio.
What are the characteristics of the Sentinel 2 satellite?
Sensor Band number Band name Sentinel-2A Sentinel-2A Central wavelength (nm) Bandwidth (nm) Central wavelength (nm) Bandwidth (nm) MSI 1 Coastal aerosol 443.9 20 MSI 2 Blue 496.6 65 MSI 3 Green 560.0 35
When did the European Sentinel 2 satellite launch?
SENTINEL-2, launched as part of the European Commission’s Copernicus program on June 23, 2015, was designed specifically to deliver a wealth of data and imagery.