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Spectral calibration and atmospheric correction of ultra-fine spectral and spatial resolution remote sensing data: Application to CASI-1500 data / L. Guanter in Remote sensing of environment, vol 109 n° 1 (12 July 2007)  

Public [article]  inRemote sensing of environment > vol 109 n° 1 (12 July 2007) . - pp 54 - 65 Titre : Spectral calibration and atmospheric correction of ultra-fine spectral and spatial resolution remote sensing data: Application to CASI-1500 data Type de document : Article/Communication Auteurs : L. Guanter, Auteur ; V. Estelles, Auteur ; J. Moreno, Auteur Année de publication : 2007 Article en page(s) : pp 54 - 65 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image [Termes IGN] aérosol [Termes IGN] Castille-La Manche [Termes IGN] correction atmosphérique [Termes IGN] épaisseur optique [Termes IGN] étalonnage spectral [Termes IGN] image CASI [Termes IGN] réflectance de surface Résumé : (Auteur) Imaging spectrometers operating in the solar spectrum measure the upwelling reflected solar radiation, and are an important tool in the bio/geochemical characterization of the Earth system. Surface reflectance is usually the starting point for the retrieval of biophysical parameters from remote measurements. Reliable radiometric and spectral calibrations and accurate atmospheric correction are mandatory in the interpretation of the surface reflectance. A complete surface reflectance retrieval scheme specifically designed for ultra-fine spectral resolution (bandwidth from 10 to 2 nm) and spatial resolution (pixel size less than 10 m) imaging spectrometers is presented in this work. The assessment of the spectral calibration is coupled to the removal of the atmospheric distortion so that maps of surface reflectance are derived, as well as columnar water vapor (CWV) maps, estimations of aerosol optical thickness (AOT) and updated sensor gain coefficients and spectral calibration. Radiative transfer calculations are performed by an optimized version of the MODTRAN4 code, which is run before processing each image. The method is tested against Compact Airborne Spectrographic Imager (CASI) 1500 images acquired during the ESA SENtinel-2 and FLuorescence EXperiment (SEN2FLEX) campaigns held in the Barrax (La Mancha, Spain) study site during June and July 2005. A peak-to-peak spectral shift variation of up to 2.3 nm is detected in CASI. Concerning atmospheric products and surface reflectance retrievals, an extensive validation is performed using ground-based measurements. A good correlation between ground measurements and CASI-derived AOT and CWV is found, with a Pearson correlation coefficient r2 up to 0.71 and 0.74, respectively. The subsequent surface reflectance retrievals also hold a good correspondence with ground-based measurements. Copyright Elsevier Numéro de notice : A2007-301 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.rse.2006.12.005 En ligne : https://doi.org/10.1016/j.rse.2006.12.005 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28664 [article]

Mapping of salt-affected soils using TM images / P. Garcia Rodriguez in International Journal of Remote Sensing IJRS, vol 28 n°11-12 (June 2007)  

Public [article]  inInternational Journal of Remote Sensing IJRS > vol 28 n°11-12 (June 2007) . - pp 2713 - 2722 Titre : Mapping of salt-affected soils using TM images Type de document : Article/Communication Auteurs : P. Garcia Rodriguez, Auteur ; M.E. Perrez Gonzales, Auteur ; et al., Auteur Année de publication : 2007 Article en page(s) : pp 2713 - 2722 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique [Termes IGN] Castille-La Manche [Termes IGN] classification dirigée [Termes IGN] déformation de surface [Termes IGN] eau souterraine [Termes IGN] image Landsat-TM [Termes IGN] inondation [Termes IGN] Normalized Difference Vegetation Index [Termes IGN] risque naturel [Termes IGN] sédiment [Termes IGN] sol salin Résumé : (Auteur) Landsat images supply significant information on the different aspects of the physical environment necessary to determine the distribution of salty soils. This work centres on the La Mancha area (Central Spain) which, due to its flat topography, exhibits ideal conditions to show surface and groundwater movement, as well as sediment distribution. Combination of these factors is essential for development. The main goal of this study is to derive information on the distribution of salt-affected soils, as well as the area subject to flood risk. Multitemporal Landsat TM images selected from the 1990s have been used for this purpose. TM images are useful for delineation of mesozoic sediments rich in salts and/or areas with high humidity content. These images have been geo-referenced to the UTM coordinate system and have been digitally enhanced. Principal components, NDVI and supervised classification were computed. Therefore, it is quite possible to predict with a high degree of probability the development of saline soils, but their precise classification is not always possible, owing to the fact that they are usually associated with other soil groups: calcisols, regosols, luvisols and kastanozems. Salt-affected soils have been found to be associated with clayish mesozoic sediments, hollows, flood plain area and subsurface and groundwater movements. Complementary fieldwork is necessary in order to confirm digital values. Copyright Taylor & Francis Numéro de notice : A2007-310 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431160600928658 En ligne : https://doi.org/10.1080/01431160600928658 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28673 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
080-07071	RAB	Revue	Centre de documentation	En réserve L003	Disponible

L'Espagne / R. Ferras (1985)

Public Titre : L'Espagne : écritures de géographie régionale Type de document : Monographie Auteurs : R. Ferras, Auteur Editeur : Montpellier : GIP Reclus Année de publication : 1985 Collection : Reclus modes d'emploi num. 5 Importance : 63 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-2-86912-004-4 Langues : Français (fre) Descripteur : [Vedettes matières IGN] Cartographie étrangère [Termes IGN] Andalousie [Termes IGN] Castille-et-Leon (Espagne) [Termes IGN] Castille-La Manche [Termes IGN] Catalogne (Espagne) [Termes IGN] délimitation des feuilles (assemblage) [Termes IGN] Espagne [Termes IGN] Galice (Espagne) [Termes IGN] histoire [Termes IGN] Reclus (Elisée) Numéro de notice : 55937 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Monographie Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=59945

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
55937-01	39.40	Livre	Centre de documentation	Cartographie	Disponible
55937-02	39.40	Livre	Centre de documentation	Cartographie	Disponible