DocumentCode :
2662839
Title :
The contribution of the european space agency to the ALOS PRISM / commissioning phase
Author :
Saunier, Sebastien ; Santer, Richard ; Goryl, Philippe ; Gruen, A. ; Wolf, Klaus ; Bouvet, Marc ; VIALLEFONT, Francoise
Author_Institution :
Earth Obs. Quality Control, Champs-sur-Marne
fYear :
2007
fDate :
23-28 July 2007
Firstpage :
208
Lastpage :
211
Abstract :
The Advanced Land Observing Satellite (ALOS) was launched on Jan 24th, 2006 by a Japan Aerospace Exploration Agency (JAXA) H-IIA launcher. It carries three remote sensing instruments: Advanced Visible and Near Infrared Radiometer type-2 (AVNIR-2), Panchromatic Remote-sensing Instrument for Stereo Mapping (PRISM) and Phased Array Type L-band Synthetic Aperture Radar (PALSAR). Within the framework of European ALOS Data European Node (ADEN), European Space Research INstitute (ESRIN) as part of European Space Agency (ESA), teamed up with JAXA for contributing to ALOS commissioning phase plan. This paper summarizes the strategy that ESA adopted to define and implement a data verification plan for mission operated by foreign nation, classified as so called ESA Third Party Missions (TPM). The verification of ALOS optical data from PRISM / AVNIR-2 instruments activities had begun four months after satellite launch on March 2007.GAEL Consultant (French company) has supported ESA / ESRIN for designing and executing the plan. A team of principal investigator´s has been put together to provide technical expertise. This paper includes a description of the verification plan and summarizes the methodologies that were used for radiometric, geometric and image quality assessment. Preliminary results indicate that the radiometric calibration of the AVNIR-2 sensor agrees with Landsat 5 (L5) Thematic Mapper and the MEdium Resolution Imaging Spectrometer (MERIS) calibration to within 10%. The geometry accuracy of PRISM and AVNIR-2 product remains within specifications but some recommendations are provided to improve the quality of product. The preliminary results from the PRISM image quality assessment through computation of PRISM Modulation Transfer Function (MTF) raised few questions toward jpeg compression that degrades image.
Keywords :
artificial satellites; data compression; radiometers; remote sensing; AD 2006 01 24; ALOS PRISM; AVNIR-2 sensor; Advanced Land Observing Satellite; Advanced Visible and Near Infrared Radiometer type-2; ESA Third Party Missions; European ALOS Data European Node; European Space Agency; European Space Research INstitute; JAXA; Japan Aerospace Exploration Agency; Landsat 5 Thematic Mapper; MERIS calibration; MEdium Resolution Imaging Spectrometer; PALSAR; Panchromatic Remote-sensing Instrument for Stereo Mapping; Phased Array Type L-band Synthetic Aperture Radar; commissioning phase; image quality assessment; jpeg compression; modulation transfer function; radiometric calibration; remote sensing; Adaptive optics; Calibration; Image quality; Instruments; L-band; Phased arrays; Radiometry; Remote sensing; Satellite broadcasting; Synthetic aperture radar; Commissioning phase; calibration; dataverification; geometry; image quality; radiometry;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2007. IGARSS 2007. IEEE International
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-1211-2
Electronic_ISBN :
978-1-4244-1212-9
Type :
conf
DOI :
10.1109/IGARSS.2007.4422766
Filename :
4422766
Link To Document :
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