Prsentation PowerPoint

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ENVISAT Symposium 2007
DPQC Meeting
Sébastien SAUNIERGAEL Consultant
sebastien.saunier_at_gael.fr
Yoelma RODRIGUEZGAEL Consultant
yoelma.rodriguez_at_gael.fr
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Agenda

• GAEL Services
• Landsat QC Services
• Landsat QC and DPQC organisation
• Third Party Missions Specificities
• Towards an integrated DPQC service
• Open discussion.

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GAEL Services
Users Agriculture JRC, CNASEA, ONIC,
FAO Risks JRC
(Ispra) Environment AESN Exploration
CGG, Elf, BEICIP, GDF Communication
RAI 1, France 2, ASO Map servers
ESRIN,ELICS,GlobExplorer Orthorectified
products Map Quality control Mosaic Classificatio
ns Data fusion Multi-format, multi-media
decodage détection des changements Bathymetry
satellite
Spatial Agencies ESA, CNES, ASI, EUMETSAT
Integrators EADS, telespazio, GI
telemetry
Ground Segment
Services Eurimage SPOT IMAGE Telespazio GEOSYS
Acquisition segment
SPOT, Landsat, ERS, ENVISAT
format
QUISS / AMALFI
archive
processor
Quality Control
Cartographic Production
Software development
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Landsat QC service

• To implement anomaly loop
• report, investigation, recovery plan
• To publish and maintain documentation for the
  user community
• To monitor product quality
• To support ESA, EOHelp, Eurimage, End-Users

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Landsat QC History
Products orders - station rejects and EOQC
dispositions from August 2005 until February-2006

• Investigations started on April, 17th 2001
• QC operational phasestarted on August, 6th 2001
• 63 months of activity 5 years

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Landsat QC and DPQC organisation
QC PROCEDURE ECSS Q20 09B
New!
DPQC
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DPQC PROCEDURE Anomaly handling
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DPQC SERVICES
DOB V1.0
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Landsat QC service
TM Product Recalibration Prototype

• New algorithm proposed by USGS to improve
  calibration accuracy of TM products.
• Actual method is validated to appreciate how it
  improves ESA product.
• Radiometric comparison between Recalibrate ESA
  pre-flight and USGS up to date calibration
  Prototype Calibration.
• Radiometric comparison between USGS RAW product
  and ESA RAW product (level 0).

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DPQC SERVICES Product Performance

• Based on multi date analysis focused on
  reference test site
• Intends to monitor evolution of quality
  indicators for checking
• if product quality remains compliant with initial
  specifications.
• Quality indicators on results from image
  processing chain
• in the fields of geometry (absolute geo-location,
  inner-geometry),radiometry calibration stability,
  and image quality (saturation, noise, striping).
• This activity may require ordering specific data.

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A TPM integrated to DPQC service

• Monthly Report should be aligned
• Cyclic report should be done.
• Use RT more systematically
• DPQC Website should include information on TPMs

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A TPM integrated to DPQC service ACTIONS for a
better QOS

• Ground stations.
• To use RT tool
• To inform about archive state
• To inform about generation problems
• Link between Task 2 and Task 4
• To inform about processor maintenance
• To validate any kind of processor updates
• DPQC Website, ENVISAT and the others missions?
  Add TPM specificities Users can access Landsat QC
  results
• Encompass TPM specificities

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Third Party Missions specificities

• Only one person is planned for EOO/EOX tasks
• But numerous interface
• No information about Platform/Instrument health
  is deduced.
• Communication with Processor Manufacturer and
  Foreign Agency is not contractual but should be
  maintain, it is crucial !!!

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Open Discussion