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Consolidated Verification Report AVNIR-2 référence GAEL-P237-DOC-004 édition 1 révision 0 GAEL Consultant date 23/11/2006 page 1 de 50 Consolidated verification report AVNIR-2 nom fonction date société signature Sébastien Saunier Prepared by EOQC project manager GAEL Consultant With contribution of ESA Prime Investigators. Checked by Yoelma Rodriguez EOQC engineer GAEL Consultant Authorized by Christophe DEMANGE Director Gael Consultant Approved by Philippe GORYL project manager ESA - ESRIN référence GAEL-P237-DOC-004 Consolidated verification report édition 1 révision 0 GAEL date 23/11/2006 Consultant AVNIR-2 page 2 de 50 DISTRIBUTION LIST GAEL External S. SAUNIER P. GORYL ESA-ESRIN Y. RODRIGUEZ P. GRIMONT ESA-ESRIN A. MAMBIMBA M. BOUVET ESA-ESTEC F. VIALLEFONT ONERA R. SANTER LISE G. CHANDER SAIC-EROS-USGS DOCUMENT CHANGE LOG Edition Date Comments Author 0.1 20/10/2006 Creation of this document S. Saunier 0.2 08/11/2006 Integration of contributions from ESA Prime Investigators S. Saunier 0.3 15/11/2006 Review meeting with Philippe Goryl Marc Bouvet – comment on S. Saunier radiometry 1.0 23/11/2006 Review meeting with Philippe Goryl S. Saunier “ Ce document contient des informations pour lesquelles GAEL Consultant se réserve tous les droits de propriété. Les destinataires de ce document ne sont pas autorisés à dupliquer ou diffuser tout ou partie de ce document en dehors de l’accomplissement des tâches pour lesquelles ce document leur a été délivré. ” référence GAEL-P237-DOC-004 Consolidated verification report édition 1 révision 0 GAEL date 23/11/2006 Consultant AVNIR-2 page 3 de 50 TABLE OF CONTENT DISTRIBUTION LIST ................................................................................................................................................2 DOCUMENT CHANGE LOG .......................................................................................................................................2 TABLE OF CONTENT ................................................................................................................................................3 LIST OF FIGURES .....................................................................................................................................................3 LIST OF TABLES .......................................................................................................................................................4 1 INTRODUCTION ...............................................................................................................................................6 1.1 PURPOSE ...................................................................................................................................................6 1.2 DOCUMENT PLAN .....................................................................................................................................6 1.3 APPLICABLE DOCUMENTS .........................................................................................................................6 1.4 REFERENCE DOCUMENT ...........................................................................................................................6 1.5 SUMMARY ................................................................................................................................................7 2 PRODUCT FORMAT ..........................................................................................................................................9 2.1 ENCODING ................................................................................................................................................9 2.2 RADIOMETRIC TRANSFORMATION ............................................................................................................ 9 2.3 GEOMETRIC TRANSFORMATION ................................................................................................................9 3 PRODUCT GEOMETRY ................................................................................................................................... 11 3.1 ABSOLUTE LOCATION ACCURACY .......................................................................................................... 11 3.2 RELATIVE REGISTRATION ....................................................................................................................... 18 3.3 BAND TO BAND REGISTRATION ............................................................................................................... 19 4 PRODUCT IMAGE QUALITY ........................................................................................................................... 21 4.1 VISUAL COMPARISON BETWEEN AVNIR-2 DATA AND SPOT4 DATA ..................................................... 21 4.2 MODULATION TRANSFER FUNCTION RESULTS ........................................................................................ 24 5 PRODUCT RADIOMETRIC CALIBRATION ....................................................................................................... 27 5.1 ASSESSMENT OF THE BAND TO BAND RADIOMETRIC STABILITY.............................................................. 27 5.2 ASSESSMENT OF RADIOMETRIC CALIBRATION STABILITY ....................................................................... 29 5.3 SENSOR INTER -COMPARISON ; L ANDSAT / TM -ALOS / AVNIR-2........................................................ 31 5.4 SENSOR INTER -COMPARISON ; ENVISAT / MERIS-ALOS / AVNIR-2 ................................................. 35 LIST OF FIGURES fig. 1 - AVNIR-2 spatial resolution. ...................................................................................................................... 10 fig. 2 - RMS trends............................................................................................................................................... 12 fig. 3 - Mean displacements trend. ........................................................................................................................ 13 fig. 4 - Standard deviation trend. ........................................................................................................................... 13 fig. 5 - Error dX along with altitude. ..................................................................................................................... 15 fig. 6 - Error dY along with altitude. ..................................................................................................................... 15 fig. 7 - Corrected error dX along with altitude. ..................................................................................................... 16 fig. 8 - ALAV2A03625380 product; error vector fields (x100) overlaid image data (no grp).............................. 16 fig. 9 - ALAV2A03625380 product; error vector fields (x10) overlaid image data (one grp). ............................. 17 fig. 10 - ALAV2A03625380 product; error vector fields (x10) overlaid image data (two grps). ......................... 17 fig. 11 - CE90 graphic plots. ................................................................................................................................. 18 fig. 12 - Missing data, 1B1 product....................................................................................................................... 23 fig. 13 - Missing data, 1B2 product....................................................................................................................... 24 fig. 14 - LR / HR graphic plots.............................................................................................................................. 26 fig. 15 - Area of interest used for verification of band to band calibration stability.............................................. 27 fig. 16 - Reflectance results stability along with observation date. ....................................................................... 31 fig. 17 - AVNIR-2 image band composition overlaid TM one.............................................................................. 32 “ Ce document contient des informations pour lesquelles GAEL Consultant se réserve tous les droits de propriété. Les destinataires de ce document ne sont pas autorisés à dupliquer ou diffuser tout ou partie de ce document en dehors de l’accomplissement des tâches pour lesquelles ce document leur a été délivré. ” référence GAEL-P237-DOC-004 Consolidated verification report édition 1 révision 0 GAEL date 23/11/2006 Consultant AVNIR-2 page 4 de 50 fig. 18 - Comparison of AVNIR-2 and TM radiance. .......................................................................................... 33 fig. 19 - Comparison of AVNIR-2 and TM radiance along with spectral band..................................................... 34 fig. 20 - Comparison of AVNIR-2 and TM radiance along with spectral band..................................................... 34 fig. 21 - The Libyan desert site as seen by the ENVISAT/MERIS sensor at 1,2 km resolution. The white square indicate the region of interest over which AVNIR-2, ENVISAT/MERIS, ENVISAT/AATSR and PARASOL/POLDER data where systematically acquired during the first semester of 2006............................... 36 fig. 22 - ALOS / AVNIR-2 true color image over the Libyan site as seen on the 2005/05/16.............................. 38 fig. 23 - The Cal/Val portal interface showing the quicklook of the ALOS / AVNIR-2 data. .............................. 39 fig. 24 - The spatial coverage of the 8 acquisitions over the Libya sites. All acquisitions
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