VON DEN DATEN ZUR KARTE
Telemetry analysis
I
Preliminary QuickLook and
cloud-mask generation
Level-0
Consolidated
Decompression
Level-IA
Radiometric Corrections
Inverse of on-board
equalization
Dark signal correction
Blind pixels removing
Crosstalk correction
Relative response
correction
SWIR rearrangement
Interpolation of defective
pixels
Interpolation of no-data
Deconvolution and
denoising
Binning of 60 m bands
Saturated no
data/defective pixels
mask generation
Metadata update
i
Geometric viewing model
refinement
Refining of the viewing
model using a global set
of reference images
Registration between
VNIR and SWIR focal
planes (optional)
Level-IB
J
Resampling
■ Geometry
interpolation, grid
computation
■ Resampling (B-
splines)
i
Conversion to reflectances
l
Preview image and
masks generation
(defective pixels, cloud
and land/water)
Top-of-atmosphere
reflectances in
cartographic geometry
■ Systematic
generation and
online distribution
Exmaple image
Data volume: 500 MB
each lOOx1D0 km 2
Level-2A
J
Bottom-of-atmosphere
reflectance in cartographic
geometry
(prototype product)
■ Generation on user
side (using Sentinel-2
toolbox)
Exmaple image
Data volume: 600 MB
each 100 x 100 km 2
CN
Abb. 5.5: Prozessierungsstufen der Sentinel-2-Produkte. Für unsere Übung haben wir ein Level-2A Sentinel-2-Produkt gewählt, da die Daten erst ab diesem Prozes-
sierungslevel atmosphärenkorrigiert und orthorektifiziert vorliegen.