Descripteur
Termes IGN > imagerie > image spatiale > image satellite > image Landsat > image Landsat-ETM+
image Landsat-ETM+Voir aussi |
Documents disponibles dans cette catégorie (194)
Ajouter le résultat dans votre panier
Visionner les documents numériques
Affiner la recherche Interroger des sources externes
Etendre la recherche sur niveau(x) vers le bas
An empirical investigation of cross-sensor relationships of NDVI and red/near-infrared reflectance using EO-1 Hyperion data / T. Miura in Remote sensing of environment, vol 100 n° 2 (30 January 2006)
[article]
Titre : An empirical investigation of cross-sensor relationships of NDVI and red/near-infrared reflectance using EO-1 Hyperion data Type de document : Article/Communication Auteurs : T. Miura, Auteur ; A. Huete, Auteur ; Hiroki Yoshioka, Auteur Année de publication : 2006 Article en page(s) : pp 223 - 236 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] analyse comparative
[Termes IGN] bande rouge
[Termes IGN] Brésil
[Termes IGN] étalonnage des données
[Termes IGN] filtre passe-bande
[Termes IGN] flore locale
[Termes IGN] forêt tropicale
[Termes IGN] image EO1-Hyperion
[Termes IGN] image hyperspectrale
[Termes IGN] image Landsat-ETM+
[Termes IGN] image Terra-MODIS
[Termes IGN] Normalized Difference Vegetation Index
[Termes IGN] rayonnement proche infrarouge
[Termes IGN] réflectance spectrale
[Termes IGN] savaneRésumé : (Auteur) Long term observations of global vegetation from multiple satellites require much effort to ensure continuity and compatibility due to differences in sensor characteristics and product generation algorithms. In this study, we focused on the band-pass filter differences and empirically investigated cross-sensor relationships of the normalized difference vegetation index (NDVI) and reflectance. The specific objectives were: 1) to understand the systematic trends in cross-sensor relationships of the NDVI and reflectance as a function of spectral band-passes, 2) to examine/ identify the relative importance of the spectral features (i.e., the green peak, red edge, and leaf liquid water absorption regions) in and the mechanism(s) of causing the observed systematic trends, and 3) to evaluate the performance of several empirical cross-calibration methods in modelling the observed systematic trends. A Level 1A Hyperion hyperspectral image acquired over a tropical forest-savanna transitional region in Brazil was processed to simulate atmospherically corrected reflectances and NDVI for various band-passes, including Terra Moderate Resolution Imaging Spectro-radiometer (MODIS), NOAA-14 Advanced Very High Resolution Radiometer (AVHRR), and Landsat7 Enhanced Thematic Mapper Plus (ETM+). Data were extracted from various land cover types typically found in tropical forest and savanna biomes and used for analyses. Both NDVI and reflectance relationships among the sensors were neither linear nor unique and were found to exhibit complex patterns and band-pass dependencies. The reflectance relationships showed strong land cover dependencies. The NDVI relationships, in contrast, did not show land cover dependencies, but resulted in non-linear forms. From sensitivity analyses, the green peak (550 nm) and red-NIR transitional (680780 nm) features were identified as the key factors in producing the observed land cover dependencies and non-linearity in cross-sensor relationships. In particular, differences in the extents to which the red and/or NIR band-passes included these features significantly influenced the forms and degrees of non-linearity in the relationships. Translation of MODIS NDVI to "AVHRR Iike" NDVI using a weighted average of MODIS green and red bands performed very poorly, resulting in no reduction of overall discrepancy between MODIS and AVHRR NDVI. Cross-calibration of NDVI and reflectance using NDVI-based quadratic functions performed well, reducing their differences to +.025 units for the NDVI and +.01 units for the reflectances; however, many of the translation results suffered from bias errors. The present results suggest that distinct translation equations and coefficients need to be developed for every sensor pairs and that land cover-dependency need to be explicitly accounted for to reduce bias errors. Numéro de notice : A2006-034 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.rse.2005.10.010 En ligne : https://doi.org/10.1016/j.rse.2005.10.010 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27761
in Remote sensing of environment > vol 100 n° 2 (30 January 2006) . - pp 223 - 236[article]Apports de la télédétection et des SIG à la définition de la sensibilité des sols à l'érosion et au suivi de l'occupation du sol sur l'ile d'Anjouan / A. Amir (2006)
Titre : Apports de la télédétection et des SIG à la définition de la sensibilité des sols à l'érosion et au suivi de l'occupation du sol sur l'ile d'Anjouan Type de document : Mémoire Auteurs : A. Amir, Auteur Editeur : Champs-sur-Marne : Ecole nationale des sciences géographiques ENSG Année de publication : 2006 Importance : 60 p. Format : 21 x 30 cm Note générale : Bibliographie
Mémoire de master 2ème année, spécialité sciences de l'information géographiqueLangues : Français (fre) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] analyse de sensibilité
[Termes IGN] analyse diachronique
[Termes IGN] carte d'occupation du sol
[Termes IGN] carte thématique
[Termes IGN] Comores (îles)
[Termes IGN] déboisement
[Termes IGN] érosion hydrique
[Termes IGN] image Landsat-ETM+
[Termes IGN] image SPOT-HRV
[Termes IGN] MNS SRTM
[Termes IGN] modèle numérique de terrain
[Termes IGN] pédologie locale
[Termes IGN] pente
[Termes IGN] photographie aérienne
[Termes IGN] photographie en couleurIndex. décimale : DSIG Mémoires du master 2 IG, du master 2 SIG, de l'ex DEA SIG Résumé : (Auteur) Dans un contexte de forte pression démographique, l'île d'Anjouan est soumise à une forte dégradation de son environnement. Parmi les effets les plus graves, on retrouve le fort taux de déboisement et ses conséquences directes sur l'aggravation de l'érosion. L'île a un relief très accidenté une forte pluviométrie qui font de l'érosion un phénomène inquiétant. L'apport de l'imagerie spatiale permet une mise à jour rapide des informations d'occupation des terres et l'étude de leur évolution grâce au SIG. La mise en place d'une base de données à référence spatiale incluant les informations d'utilisation du sol de 1973, 1984 et 1995 ainsi que les données de pédologie et de topographie nous a également permis d'effectuer une cartographie de la sensibilité des sols à l'érosion. Les résultats confirment la tendance au déboisement entre 1984 et 1995 de manière chiffrée et une concordance de la sensibilité à l'érosion avec les constats effectués sur le terrain. Note de contenu : 1 - INTRODUCTION
1.1 Contexte
1.2 Problématique
2 - PRESENTATION DE LA ZONE D'ETUDE
2.1 Localisation et géographie
2.2 Le climat
2.2.1 Caractéristiques générales
2.2.2 Effets de l'altitude et de l'exposition aux vents
2.3 Géomorphologie
2.4 Pédologie
2.4.1 Pédogenèse
2.4.2 Les classes de sols et leurs propriétés
3 - METHODOLOGIE
4 - LES DONNEES ET LEURS PRETRAITEMENTS
4.1 Les données utilisées
4.1.1 Les images satellites
4.1.2 Les photos aériennes
4.1.3 Le modèle numérique de terrain SRTM
4.1.4 Les cartes
4.2 Les prétraitements
4.2.1 Le géoréférencement des données
4.2.2 Préparation des cartes
4.2.3 Préparation des images satellites
5 - CLASSIFICATION ET ELABORATION DE LA CARTE D'OCCUPATION DU SOL
5.1 Choix et présentation des classes
5.1.1 Choix des classes
5.1.2 Description des classes
5.2 La carte d'occupation du sol de 1995
5.2.1 Photo-interprétation pour la délimitation des couches de forêt
5.2.2 Classification non supervisée
5.2.3 Délimitation des zones de cultures sous forêt
5.3 Analyse de la carte d'occupation du sol de 1995
5.4 Evolution de l'occupation des terres de 1973 à 1995
6 - CARTOGRAPHIE DE LA SENSIBILITE DES SOLS A L'EROSION
6.1 Hiérarchisation des facteurs
6.1.1 Influence de la pédologie
6.1.2 Influence de la topographie
6.1.3 La couverture végétale
6.2 Mise en place d'un arbre décisionnel
6.3 Analyse de la tarte de sensibilité à l'érosion
ConclusionNuméro de notice : 23653 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Mémoire Master 2 IG Organisme de stage : Centre National de Documentation et de Recherches Scientifiques Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=51549 Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 23653-01 DSIG Livre Centre de documentation Travaux d'élèves Disponible Postflood damage evaluation using landsat TM and ETM+ data integrated with DEM / M. Gianinetto in IEEE Transactions on geoscience and remote sensing, vol 44 n° 1 (January 2006)
[article]
Titre : Postflood damage evaluation using landsat TM and ETM+ data integrated with DEM Type de document : Article/Communication Auteurs : M. Gianinetto, Auteur ; P. Villa, Auteur ; G. Lechi, Auteur Année de publication : 2006 Article en page(s) : pp 236 - 243 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] aide à la décision
[Termes IGN] analyse comparative
[Termes IGN] analyse diachronique
[Termes IGN] analyse en composantes principales
[Termes IGN] dommage matériel
[Termes IGN] image Landsat-ETM+
[Termes IGN] image Landsat-TM
[Termes IGN] impact sur l'environnement
[Termes IGN] inondation
[Termes IGN] Italie
[Termes IGN] modèle numérique de surface
[Termes IGN] risque naturel
[Termes IGN] segmentation d'imageRésumé : (Auteur) In recent decades, radar and optical satellite imagery have been used for evaluating flooding extent. In this paper, a straightforward technique based on the sequential use of the spectral-temporal principal component analysis, logical filtering, and image segmentation integrated with the digital elevation model was developed as a decisional support tool for the allocations of the resource destined for the flooded areas. The mapping technique was first applied to the catastrophic event that occurred in the Piemonte Region (Italy) in November 1994, which was the worst event of the past century for that region, with 44 casualities and over 2000 homeless. Next, it was applied to the Obion/Forked Deer inundation that occurred in Tennessee (U.S.) between November and December 2001, in which heavy damage to the infrastructure was reported. Two Landsat-5 Thematic Mapper (path 194, row 28/29) and two Landsat-7 Enhanced Thematic Mapper Plus (path 23, row 35) images were processed, two of them collected before and two after the events. The method proposed proved to be an effective approach for evaluating flood extent and for assessing the damage produced by the flooding. An overall accuracy of 85.6%, a user accuracy of 87.5 %, and a producer accuracy of 97.5 % were achieved, and an agreement of 83% between ground measures and remotely sensed data in the estimation of flood water volumes was also achieved on a regional scale. Numéro de notice : A2006-090 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2005.859952 En ligne : https://doi.org/10.1109/TGRS.2005.859952 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27817
in IEEE Transactions on geoscience and remote sensing > vol 44 n° 1 (January 2006) . - pp 236 - 243[article]Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 065-06011 RAB Revue Centre de documentation En réserve L003 Disponible Using satellite imagery and GIS for land-use and land-cover change mapping in an estuarine watershed / X. Yang in International Journal of Remote Sensing IJRS, vol 26 n° 23 (December 2005)
[article]
Titre : Using satellite imagery and GIS for land-use and land-cover change mapping in an estuarine watershed Type de document : Article/Communication Auteurs : X. Yang, Auteur ; Z. Liu, Auteur Année de publication : 2005 Article en page(s) : pp 5275 - 5296 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique
[Termes IGN] analyse diachronique
[Termes IGN] baie
[Termes IGN] bassin hydrographique
[Termes IGN] carte d'occupation du sol
[Termes IGN] carte thématique
[Termes IGN] changement d'occupation du sol
[Termes IGN] classification
[Termes IGN] classification ascendante hiérarchique
[Termes IGN] croissance urbaine
[Termes IGN] dégradation de l'environnement
[Termes IGN] écosystème
[Termes IGN] estuaire
[Termes IGN] image Landsat-ETM+
[Termes IGN] image Landsat-TM
[Termes IGN] littoral
[Termes IGN] Mexique (golfe du)
[Termes IGN] précision de la classification
[Termes IGN] protection de l'environnement
[Termes IGN] système d'information géographiqueRésumé : (Auteur) The degradation of world-wide estuarine ecosystems as a result of accelerated human population growth accompanied by agricultural, industrial and urban development justifies a strong need to find efficient ways to manage and protect these sensitive environments. Starting from 2001. the authors have been involved in an interdisciplinary research project aiming to develop environmental indicators for integrated estuarine ecosystem assessment in the Gulf of Mexico. As part of this project, a study was conducted to characterize land-use and land-cover changes with the Pensacola estuarine drainage area as a case. The Pensacola bay was targeted because it is one of few exemplary large river-driven estuarine systems across the northern Gulf of Mexico. The study had two major sections. The first part was dedicated to the development of an improved method for coastal land-use and land-cover mapping, which was built upon hierarchical classification and spatial reclassification. An image scene was separated into urban and rural regions early in the classification, with a 'mask' defined by road intersection density slices combined with road buffers. Each part was classified independently in its most effective context and, later, both were merged to form a complete map. In spatial reclassification, image interpretation procedures, auxiliary vector data and a variety of Geographical Information System (GIS) functions were synthesized to resolve spectral confusion and improve mapping accuracy. This method was used to map land use and land cover from Landsat Thematic Mapper/Enhanced Thernatic Mapper Plus (TM/ETM +) imagery for 1989, 1996 and 2002, respectively. The accuracy assessment shows that the overall classification errors were less than 10%. The second part focused on the analysis of the spatio-temporal dynamics of estuarine land-use and land-cover changes by using post-classification comparison and GIS overlay techniques. The project has revealed that a substantial growth of low-density urban land occurred in the lower drainage basin in connection with population and housing growth, as well as a significant increase of mixed forest land in the upper watershed as a result of active logging and harvesting operations. These growths were achieved at the cost of evergreen forest and wetlands, thus compromising safeguards for water quality, biodiversity of aquatic systems, habitat structure and watershed health in the Pensacola estuarine drainage area. Numéro de notice : A2005-517 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431160500219224 En ligne : https://doi.org/10.1080/01431160500219224 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27653
in International Journal of Remote Sensing IJRS > vol 26 n° 23 (December 2005) . - pp 5275 - 5296[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 080-05231 RAB Revue Centre de documentation En réserve L003 Exclu du prêt Mapping impervious surface type and sub-pixel abundance using Hyperion hyperspectral imagery / J. Falcone in Geocarto international, vol 20 n° 4 (December 2005 - February 2006)
[article]
Titre : Mapping impervious surface type and sub-pixel abundance using Hyperion hyperspectral imagery Type de document : Article/Communication Auteurs : J. Falcone, Auteur ; R. Gomez, Auteur Année de publication : 2005 Article en page(s) : pp 3 - 10 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] analyse comparative
[Termes IGN] analyse des mélanges spectraux
[Termes IGN] carte d'occupation du sol
[Termes IGN] détection de contours
[Termes IGN] image EO1-Hyperion
[Termes IGN] image hyperspectrale
[Termes IGN] image Ikonos
[Termes IGN] image Landsat-ETM+
[Termes IGN] milieu urbain
[Termes IGN] restitution numérique
[Termes IGN] surface imperméable
[Termes IGN] Washington (Etats-Unis ; état)Résumé : (Auteur) Impervious surfaces have been identified as an important and quantifiable indicator of environmental degradation in urban settings. A number of research efforts have been directed at mapping impervious surface type using multispectral imagery. To date, however, no studies have compared equivalent techniques using multispectral and hyperspectral imagery to that end. In this study, data from NASA's 220-channel Hyperion instrument were used to: a) delineate three types of impervious surface, and b) map sub-pixel percent abundance for a study site near Washington, D.C., USA. The results were compared with the results of similar methods using same-spatial-resolution Landsat ETM+ data for mapping impervious surface type, and with the results of the U. S. Geological Survey's National Land Cover Data (NLCD) 2001 impervious surface data layer, which is derived-from Landsat and high-resolution Ikonos data. The accuracy of discriminating impervious surface type using Hyperion data was assessed at 88% versus Landsat at 59%. The sub-pixel percent impervious map corresponded well with the NLCD 2001; impervious surface in the study area was calculated at 29.3% for NLCD 2001 and 28.4% for the Hyperion derived layer. The results suggest that fairly simple techniques using hyperspectral data are effective for quantifying impervious surface type, and that high-spectral-resolution imagery may be a good alternative to high-spatial-resolution data. Numéro de notice : A2005-550 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106040508542358 Date de publication en ligne : 02/01/2008 En ligne : https://doi.org/10.1080/10106040508542358 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27686
in Geocarto international > vol 20 n° 4 (December 2005 - February 2006) . - pp 3 - 10[article]Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 059-05041 RAB Revue Centre de documentation En réserve L003 Disponible Monitoring and modelling cropland loss in rapidly growing urban and depopulating rural counties using remotely sensed data and GIS / A.N. Petrov in Geocarto international, vol 20 n° 4 (December 2005 - February 2006)PermalinkQuantitative classification as a tool to show change in an urbanizing watershed / W.B. Clapham in International Journal of Remote Sensing IJRS, vol 26 n° 22 (November 2005)PermalinkSub-pixel estimation of urban land cover components with linear mixture model analysis and Landsat Thematic Mapper imagery / S. Lee in International Journal of Remote Sensing IJRS, vol 26 n° 22 (November 2005)PermalinkAnalysis of urban heat-island effect using ASTER and ETM+ data: separation of anthropogenic heat discharge and natural heat radiation from sensible heat flux / S. Katowski in Remote sensing of environment, vol 99 n° 1-2 (15 November 2005)PermalinkAménagement et développement rural dans le bas Loukkos (Maroc) : suivi et évaluation à l'aide de la télédetection et des SIG / R. Ragala in Photo interprétation, vol 41 n° 4 (Novembre 2005)PermalinkCaractérisation d'un habitat forestier tempéré par télédétection satellitale pour le suivi de populations aviennes : cas des mésanges en forêt de Larivour (Aube, France) / V. Godard in Photo interprétation, vol 41 n° 4 (Novembre 2005)PermalinkStratified sampling of satellite images with a systematic grid of points / F.J. Gallego in ISPRS Journal of photogrammetry and remote sensing, vol 59 n° 6 (November 2005)PermalinkOn the relationship between training sample size data dimensionality: Monte Carlo analysis of broadland multi-temporal classification / T.G. Van Niel in Remote sensing of environment, vol 98 n° 4 (30/10/2005)PermalinkRecognition of gypsum geohorizons in the Sivas Basin (Turkey) using ASTER and Landsat ETM+ images / K.S. Kavak in International Journal of Remote Sensing IJRS, vol 26 n° 20 (October 2005)PermalinkResult from EO-1 experiment: a comparative study of earth observing-1 Advanced Land Imager (ALI) and Landsat ETM+ data for land cover mapping in the Okavango delta, Botswana / A.L. Neunschwander in International Journal of Remote Sensing IJRS, vol 26 n° 19 (October 2005)Permalink