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projects:earth_observation:sentinel_2_data_processing_handbook [2026/05/21 13:37] – [Level-0] kymkiprojects:earth_observation:sentinel_2_data_processing_handbook [2026/05/21 13:38] (current) – [Level-1 B] kymki
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 The Sentinel-2 [[https://sentinels.copernicus.eu/web/sentinel/user-guides/sentinel-2-msi/product-types/level-0|Level 0 product,]] unlike L1C, is not available for public access and is the first processing level performed by the Payload Data Ground Segment (PDGS). Its processing step takes the MSI raw data as input from th Copernicus Ground Segment and:  The Sentinel-2 [[https://sentinels.copernicus.eu/web/sentinel/user-guides/sentinel-2-msi/product-types/level-0|Level 0 product,]] unlike L1C, is not available for public access and is the first processing level performed by the Payload Data Ground Segment (PDGS). Its processing step takes the MSI raw data as input from th Copernicus Ground Segment and: 
  
-- error checks the satellite telemetry data, +  * error checks the satellite telemetry data, 
-- generates a preliminary low-res image and cloudmask for early filtering of data of poor quality, +  * generates a preliminary low-res image and cloudmask for early filtering of data of poor quality, 
-- dates the individual lines in the recieved image to enable the exact capture time of each ISP within a predefined granule (geographic region) to be recorded, +  * dates the individual lines in the recieved image to enable the exact capture time of each ISP within a predefined granule (geographic region) to be recorded, 
-- packages Instrument Source Packets obtained from the satellite ground station network into granules+  * packages Instrument Source Packets obtained from the satellite ground station network into granules
          
 === Level-0 Consolidated === === Level-0 Consolidated ===
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    1.  Level-1B radiometric processing, including:    1.  Level-1B radiometric processing, including:
  
-    dark signal correction +  *     dark signal correction 
-    pixel response non-uniformity correction +  *     pixel response non-uniformity correction 
-    crosstalk correction +  *     crosstalk correction 
-    defective pixels identification +  *     defective pixels identification 
-    high spatial resolution bands restoration (de-convolution and de-noising) +  *     high spatial resolution bands restoration (de-convolution and de-noising) 
-    binning of the 60 m spectral bands.+  *     binning of the 60 m spectral bands.
  
    2. Resampling on the common geometry grid for registration between the Global Reference Image (GRI) and the reference band (B4 by default).    2. Resampling on the common geometry grid for registration between the Global Reference Image (GRI) and the reference band (B4 by default).