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Validation of Landsat-7-ETM+ thermal-band calibration and atmospheric correction whith ground-based measurements / C. Coll in IEEE Transactions on geoscience and remote sensing, vol 48 n° 1 Tome 2 (January 2010)  

Public [article]  inIEEE Transactions on geoscience and remote sensing > vol 48 n° 1 Tome 2 (January 2010) . - pp 547 - 555 Titre : Validation of Landsat-7-ETM+ thermal-band calibration and atmospheric correction whith ground-based measurements Type de document : Article/Communication Auteurs : C. Coll, Auteur ; J. Galve, Auteur ; J.M. Sanchez, Auteur ; V. Caselles, Auteur Année de publication : 2010 Article en page(s) : pp 547 - 555 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s) [Termes IGN] analyse comparative [Termes IGN] correction atmosphérique [Termes IGN] données de terrain [Termes IGN] Espagne [Termes IGN] étalonnage de capteur (imagerie) [Termes IGN] image Landsat-ETM+ [Termes IGN] modèle de transfert radiatif [Termes IGN] rayonnement infrarouge thermique [Termes IGN] rizière [Termes IGN] température de luminance [Termes IGN] température de surface Résumé : (Auteur) Ground-based measurements of land-surface temperature (LST) performed in a homogeneous site of rice crops close to Valencia, Spain, were used for the validation of the calibration and the atmospheric correction of the Landsat-7 Enhanced Thematic Mapper Plus (ETM+) thermal band. Atmospheric radiosondes were launched at the test site around the satellite overpasses. Field-emissivity measurements of the near-full-vegetated rice crops were also performed. Seven concurrences of Landsat-7 and ground data were obtained in July and August 2004-2007. The ground measurements were used with the MODTRAN-4 radiative transfer model to simulate at-sensor radiances and brightness temperatures, which were compared with the calibrated ETM+ observations over the test site. For the cases analyzed here, the differences between the simulated and ETM+ brightness temperatures show an average bias of 0.6 K and a rootmean-square difference (rmsd) of + 0.8 K. The ground-based measurements were also used for the validation of LSTs derived from ETM+ at-sensor radiances with atmospheric correction calculated from the following: 1) the local-radiosonde profiles and 2) the operational atmospheric-correction tool available at http://atmcorr.gsfc.nasa.gov. For the first case, the differences between the ground and satellite LSTs ranged from -0.6 to 1.4 K, with a mean bias of 0.7 K and an rmsd = +1.0 K. For the second case, the differences ranged between -1.8 and 1.3 K, with a zero average bias and an rmsd = +1.1 K. Although the validation cases are few and limited to one land cover at morning and summer, results show the good LST accuracy that can be achieved with ETM+ thermal data. Copyright IEEE Numéro de notice : A2010-035 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2009.2024934 Date de publication en ligne : 18/08/2009 En ligne : https://doi.org/10.1109/TGRS.2009.2024934 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30231 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
065-2010011B	RAB	Revue	Centre de documentation	En réserve L003	Disponible

A procedure for radiometric recalibration of Landsat 5 TM reflective-band data / Gyanesh Chander in IEEE Transactions on geoscience and remote sensing, vol 48 n° 1 Tome 2 (January 2010)  

Public [article]  inIEEE Transactions on geoscience and remote sensing > vol 48 n° 1 Tome 2 (January 2010) . - pp 556 - 574 Titre : A procedure for radiometric recalibration of Landsat 5 TM reflective-band data Type de document : Article/Communication Auteurs : Gyanesh Chander, Auteur ; O. Haque, Auteur ; Esad Micijevic, Auteur ; A. Barsi, Auteur Année de publication : 2010 Article en page(s) : pp 556 - 574 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s) [Termes IGN] étalonnage des données [Termes IGN] étalonnage radiométrique [Termes IGN] image Landsat-TM [Termes IGN] qualité des données [Termes IGN] traitement différé Résumé : (Auteur) From the Landsat program's inception in 1972 to the present, the Earth science user community has been benefiting from a historical record of remotely sensed data. The multispectral data from the Landsat 5 (L5) Thematic Mapper (TM) sensor provide the backbone for this extensive archive. Historically, the radiometric calibration procedure for the L5 TM imagery used the detectors' response to the internal calibrator (IC) on a scene-by-scene basis to determine the gain and offset for each detector. The IC system degraded with time, causing radiometric calibration errors up to 20%. In May 2003, the L5 TM data processed and distributed by the U.S. Geological Survey (USGS) Earth Resources Observation and Science Center through the National Landsat Archive Production System (NLAPS) were updated to use a lifetime lookup-table (LUT) gain model to radiometrically calibrate TM data instead of using scene-specific IC gains. Further modification of the gain model was performed in 2007. The L5 TM data processed using IC prior to the calibration update do not benefit from the recent calibration revisions. A procedure has been developed to give users the ability to recalibrate their existing level-1 products. The best recalibration results are obtained if the work-order report that was included in the original standard data product delivery is available. However, if users do not have the original work-order report, the IC trends can be used for recalibration. The IC trends were generated using the radiometric gain trends recorded in the NLAPS database. This paper provides the details of the recalibration procedure for the following: 1) data processed using IC where users have the work-order file; 2) data processed using IC where users do not have the work-order file; 3) data processed using prelaunch calibration parameters; and 4) data processed using the previous version of the LUT (e.g., LUT03) that was released before April 2, 2007. Copyright IEEE Numéro de notice : A2010-036 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2009.2026166 Date de publication en ligne : 15/09/2009 En ligne : https://doi.org/10.1109/TGRS.2009.2026166 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30232 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
065-2010011B	RAB	Revue	Centre de documentation	En réserve L003	Disponible