Mar 27, 2015 - 2013, VITO NV. Level 3 processor. Level 2 processor. Level 1 processor. Level. 1A. Geometric processing. - Position and velocity interpolation.
27/03/2015
PROBA-V: Data Products and Calibration Jan Dries, VITO PROBA-V Team
PROBA-V S10 of 2013/09/01 until 2013/09/10.
27/03/2015 © 2013, VITO NV
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Data Ingestion (Decoding Raw Data)
Image Quality (Calibration
Instrument Programming
Processing Data (Generate Images) Product Distribution
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Level 1 processor Level 2 processor Level 3 processor
Geometric processing
Radiometric processing
Image Calibration Parameters files
- Position and velocity interpolation - Scanline datation - Matrix frames transformation computation (plateform, instrument, detector) - Latitude/longitude grid computation - Satellite/solar angles computation
Level 2B
Level 1C
Level 1B
Level 1A
Raw data product in sensor resolution
- Dark current correction - Inter-pixel non-uniformities correction - Non-linearity correction - Top Of Atmosphere reflectance computation
Level 2A
Atmospheric correction
Shadow detection
Cloud and Ice snow detection
SWIR mosaicking
- Auxlliary data preparation - SMAC algorithm application
Mapping
- Projection - Resampling - Quality flag calculation
Compositing S1 TOA
Level 3 (S1 TOA)
Compositing S1 TOC
Level 3 (S1 TOC)
Compositing S10 TOC
Level 3 (S10 TOC)
Final data products In 1/3 and 1 km resolution
Internal products
27/03/2015 © 2013, VITO NV
End user products
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Vicarious Calibration Concept
Statistically combine results of different methods to reduce uncertainty reconcile methods
temporal: time series
averaging over sites averaging in 1 site
27/03/2015 © 2013, VITO NV
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Absolute
In-Flight Radiometric Calibration Methods
Antarctica/ Greenland Multi Angular
Temporal
Oceans
Sun
Deserts
DC Clouds
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Glint
Interband
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RC first (intermediate !!!) results, before applying ICP-RC
Deserts (absolute, center) 0-5 = Blue, Red, NIR, SWIR
Clouds (interband, center) 1-2 = Blue, NIR
27/03/2015 © 2013, VITO NV
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GC first (intermediate !!!) results BLUE
BLUERED
RED
BLUENIR
BLUESWIR
NIR
RED-NIR
SWIR
REDSWIR
NIRSWIR
Left, absolute Left, interband 27/03/2015 © 2013, VITO NV
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GC first (intermediate !!!) results BLUERED
BLUE
BLUENIR
RED
BLUESWIR
NIR
RED-NIR
SWIR
REDSWIR
NIRSWIR
Right, absolute Right, interband 27/03/2015 © 2013, VITO NV
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GC first (intermediate !!!) results BLUE
RED
NIR
SWIR
Center, absolute Center, interband 27/03/2015 © 2013, VITO NV
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Product Distribution : the VITO PDF
27/03/2015 © 2013, VITO NV
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Thank you!
The VITO PROBA-V team 27/03/2015 © 2013, VITO NV
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