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Simulating SAR geometric distortions and predicting Persistent Scatterer densities for ERS-1/2 and ENVISAT C-band SAR and InSAR applications: Nationwide feasibility assessment to monitor the landmass of Great Britain with SAR imagery / Francesca Cigna in Remote sensing of environment, vol 152 (September 2014)
[article]
Titre : Simulating SAR geometric distortions and predicting Persistent Scatterer densities for ERS-1/2 and ENVISAT C-band SAR and InSAR applications: Nationwide feasibility assessment to monitor the landmass of Great Britain with SAR imagery Type de document : Article/Communication Auteurs : Francesca Cigna, Auteur ; Luke B. Bateson, Auteur ; Colm J. Jordan, Auteur ; et al., Auteur Année de publication : 2014 Article en page(s) : pp 441 - 466 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications
[Termes IGN] coin réflecteur
[Termes IGN] distorsion d'image
[Termes IGN] effondrement de terrain
[Termes IGN] étude de faisabilité
[Termes IGN] Grande-Bretagne
[Termes IGN] image Envisat-ASAR
[Termes IGN] image ERS-SAR
[Termes IGN] image radar moirée
[Termes IGN] interféromètrie par radar à antenne synthétique
[Termes IGN] risque naturel
[Termes IGN] simulationIndex. décimale : 35.43 Applications de télédétection - géologie Résumé : (auteur) We assess the feasibility of monitoring the landmass of Great Britain with satellite Synthetic Aperture Radar (SAR) imagery, by analysing ERS-1/2 SAR and ENVISAT IS2 Advanced SAR (ASAR) archive data availability, geometric distortions and land cover control on the success of (non-)interferometric analyses. Our assessment both addresses the scientific and operational question ofwhether a nationwide SAR-based monitoring of ground motion would succeed in Great Britain, and helps to understand controlling factors and possible solutions to overcome the limitations of undertaking SAR-based imaging of the landmass. This is the first time such a nationwide assessment is performed in preparation for acquisition and processing of SAR data in the United Kingdom, and any other country in the world. Analysis of the ERS-1/2 and ENVISAT archives reveals potential for multi-interferogram SAR Interferometry (InSAR) for the entirety of Britain using ERS-1/2 in descending mode, with 100% standard image frames showing at least 20 archive scenes available. ERS-1/2 ascending and both ENVISAT modes show potential for non-interferometric and single-pair InSAR for the vast majority of Britain, and multi-interferogram only for 13% to 38% of the available standard frames. Based on NEXTMap® Britain Digital Terrain Model (DTM) we simulate SAR layover, foreshortening and shadow to the ERS-1/2 and ENVISAT Lines-Of-Sight (LOS), and quantify changes of SAR distortions with variations in mode, LOS incidence angles and ground track angles, local terrain orientation, and the effect of scale due to the input DTM resolution. The simulation is extended to the ~230,000 km2 landmass, and shows limited control of local topography on the radar terrain visibility. According to the 50m to 5m DTM-based simulations, ~1.0–1.4% of Great Britain could potentially be affected by shadowand layover in eachmode. Only ~0.02–0.04% overlapping between ascending and descending mode distortions is found, this indicating the negligible proportion of the landmass that cannot be monitored using either imaging mode. We calibrate the CORINE Land Cover 2006 (CLC2006) using Persistent Scatterer (PS) datasets available for London, Stoke-On-Trent, Newcastle and Bristol, to quantify land cover control on the PS distribution and characterize the CLC2006 classes in terms of the potential PS density they could provide. Despite predominance of rural land cover types, we predict potential for over 12.8 M monitoring targets for each acquisition mode using a set of image frames covering the entire landmass. We validate our assessment by processing with the Interferometric Point Target Analysis (IPTA) 55 ERS-1/2 SAR scenes depicting South Wales between 1992 and 1999. Although absolute differences between predicted and observed target density are revealed, relative densities and rankings among the various CLC2006 classes are found constant across the calibration and validation datasets. Rescaled predictions for Britain show potential for a total of 2.5M monitoring targets across the landmass. We examine the use of the topographic and land cover feasibility maps for landslide studies in relation to the British Geological Survey's National Landslide Database and DiGMapGB mass movement layer. Building upon recent literature, we finally discuss future perspectives relating to the replication of our feasibility assessment to account for higher resolution SAR imagery, new Earth explorers (e.g., Sentinel-1) and improved processing techniques, showing potential to generate invaluable sources of information on land motions and geohazards in Great Britain. Numéro de notice : A2014-452 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.rse.2014.06.025 Date de publication en ligne : 05/08/2014 En ligne : https://doi.org/10.1016/j.rse.2014.06.025 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=74014
in Remote sensing of environment > vol 152 (September 2014) . - pp 441 - 466[article]Documents numériques
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A2014-452 simulating SAR geometric distorsions_CignaAdobe Acrobat PDF Surface reconstruction and landslide displacement measurements with Pléiades satellite images / André Stumpf in ISPRS Journal of photogrammetry and remote sensing, vol 95 (September 2014)
[article]
Titre : Surface reconstruction and landslide displacement measurements with Pléiades satellite images Type de document : Article/Communication Auteurs : André Stumpf, Auteur ; Jean-Philippe Malet, Auteur ; P. Allemand, Auteur ; et al., Auteur Année de publication : 2014 Article en page(s) : pp 1 – 12 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques
[Termes IGN] effondrement de terrain
[Termes IGN] image Pléiades-HR
[Termes IGN] mesure géométrique
[Termes IGN] point d'appui
[Termes IGN] précision décimétriqueRésumé : (Auteur) Recent advances in image-matching techniques and VHR satellite imaging at submeter resolution theoretically offer the possibility to measure Earth surface displacements with decimetric precision. However, this possibility has yet not been explored and requirements of ground control and external topographic datasets are considered as important bottlenecks that hinder a more common application of optical image correlation for displacement measurements. This article describes an approach combining spaceborne stereo-photogrammetry, orthorectification and sub-pixel image correlation to measure the horizontal surface displacement of landslides from Pléiades satellite images. The influence of the number of ground-control points on the accuracy of the image orientation, the extracted surface models and the estimated displacement rates is quantified through comparisons with airborne laser scan and in situ global navigation satellite measurements at permanent stations. The comparison shows a maximum error of 0.13 m which is one order of magnitude more accurate than what has been previously reported with spaceborne optical images from other sensors. The obtained results indicate that the approach can be applied without significant loss in accuracy when no ground control points are available. It could, therefore, greatly facilitate displacement measurements for a broad range of applications. Numéro de notice : A2014-472 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2014.05.008 En ligne : https://doi.org/10.1016/j.isprsjprs.2014.05.008 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=74049
in ISPRS Journal of photogrammetry and remote sensing > vol 95 (September 2014) . - pp 1 – 12[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 081-2014091 RAB Revue Centre de documentation En réserve L003 Disponible Traitement de données Thematic Mapper pour la cartographie multi temporelle du plateau sous-marin autour des îles Kerkennah (Tunisie) / Rim Katlane in Photo interprétation, European journal of applied remote sensing, vol 50 n° 3 - 4 (septembre 2014)
[article]
Titre : Traitement de données Thematic Mapper pour la cartographie multi temporelle du plateau sous-marin autour des îles Kerkennah (Tunisie) Type de document : Article/Communication Auteurs : Rim Katlane, Auteur ; Jean-Claude Berges, Auteur ; G. Beltrando, Auteur ; Fouad Zargouni, Auteur Année de publication : 2014 Article en page(s) : pp 100 - 107 Langues : Français (fre) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] analyse diachronique
[Termes IGN] archipel
[Termes IGN] carte bathymétrique
[Termes IGN] correction atmosphérique
[Termes IGN] détection de changement
[Termes IGN] fond marin
[Termes IGN] image Landsat-TM
[Termes IGN] image multitemporelle
[Termes IGN] lever bathymétrique
[Termes IGN] relief sous-marin
[Termes IGN] topographie locale
[Termes IGN] trait de côte
[Termes IGN] TunisieIndex. décimale : 35.40 Applications de télédétection - généralités Résumé : (Auteur) Dans le golfe de Gabès en Tunisie, la topographie sous-marine des îles Kerkennah est marquée par l'existence de hauts fonds (l'isobathe -10 m est située à plusieurs km des côtes de l'archipel) et la lithologie est caractérisée par la présence de roches majoritairement tendres (argiles mio-pliocènes, grès). Cette topographie et la nature des roches ainsi qu'une subsidence active constituent un facteur de vulnérabilité important d'autant plus marquée que 45 % de la surface des îles est constitué de sebkhas (terres basses, salées et stériles). Une cartographie multi-temporelle du plateau sous-marin des îles a été réalisée à partir des données Thematic Mapper (TM) de Landsat 5 dont le capteur permet une cartographie du fond marin jusqu'à environ 25 m de profondeur pour la bande TM1. Les bandes TM1 de juillet 1986, août 1987, juin 2003 et juillet 2009, préalablement prétraitées (corrections atmosphérique, radiométrique et géométrique) ont été analysées et leur luminance comparée pixel par pixel. Cela a permis d'extraire des cartes de changements de la morphologie sous-marine issue d'une soustraction entre les bandes TM1 des années disponibles. Ces cartes montrent clairement des modifications de la morphologie sous-marine dans le temps et dans l'espace : le retrait du trait de côte par endroit, immersion de petite parcelle, sebkha, apparition et agrandissement de quelques chenaux sous-marins. Numéro de notice : A2014-587 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=74826
in Photo interprétation, European journal of applied remote sensing > vol 50 n° 3 - 4 (septembre 2014) . - pp 100 - 107[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 104-2014031 SL Revue Centre de documentation Revues en salle Disponible Tropical forest change monitoring / David Belton in GEO: Geoconnexion international, vol 13 n° 8 (september 2014)
[article]
Titre : Tropical forest change monitoring Type de document : Article/Communication Auteurs : David Belton, Auteur Année de publication : 2014 Article en page(s) : pp 30 - 35 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] Cameroun
[Termes IGN] détection de changement
[Termes IGN] forêt tropicale
[Termes IGN] image radar moirée
[Termes IGN] image Radarsat
[Termes IGN] surveillance forestièreRésumé : (Auteur) SAR imagery is an accurate, reliable and cost-effective source of information for monitoring changes in tropical forests over very large areas. This item explains how Radarsat-2 imagery was used in the Republic of Cameroon to detect and quantify illegal logging activities. Numéro de notice : A2014-321 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=33224
in GEO: Geoconnexion international > vol 13 n° 8 (september 2014) . - pp 30 - 35[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 062-2014081 SL Revue Centre de documentation Revues en salle Disponible Accuracy assessment of MODIS/Terra snow cover product for parts of Indian Himalayas / Hari Prasad Chelamallu in Geocarto international, vol 29 n° 5 - 6 (August - October 2014)
[article]
Titre : Accuracy assessment of MODIS/Terra snow cover product for parts of Indian Himalayas Type de document : Article/Communication Auteurs : Hari Prasad Chelamallu, Auteur ; G. Venkataraman, Auteur ; M. V. R. Murti, Auteur Année de publication : 2014 Article en page(s) : pp 592-608 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] analyse spatio-temporelle
[Termes IGN] Himalaya
[Termes IGN] image Terra-MODIS
[Termes IGN] Inde
[Termes IGN] manteau neigeux
[Termes IGN] ruissellementRésumé : (auteur) Snow cover mapping is important for snow and glacier-related research. The spatial and temporal distribution of snow cover area is a fundamental input to the atmospheric models, snowmelt runoff models and climate models, as well as other applications. Daily snow cover maps from Moderate Resolution Imaging Spectroradiometer (MODIS) Terra satellite were retrieved for the period between 2004 and 2007, and pixels in these images were classified as cloud, snow or snow-free. These images have then been compared with ground snow depth (SD) measurements from the four observatories located at different parts of Himalayas. Comparison of snow maps with in situ data showed good agreement with overall accuracies in between 78.15 and 95.60%. When snow cover was less, MODIS data were found to be less accurate in mapping snow cover region. As the SD increases, the accuracy of MODIS snow cover maps also increases. Numéro de notice : A2014-416 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106049.2013.819041 En ligne : http://www.tandfonline.com/doi/full/10.1080/10106049.2013.819041 Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=73952
in Geocarto international > vol 29 n° 5 - 6 (August - October 2014) . - pp 592-608[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 059-2014031 RAB Revue Centre de documentation En réserve L003 Disponible Advanced differential interferometry synthetic aperture radar techniques for deformation monitoring: a review on sensors and recent research development / O. Idrees Mohammed in Geocarto international, vol 29 n° 5 - 6 (August - October 2014)PermalinkAn intelligent approach towards automatic shape modelling and object extraction from satellite images using cellular automata based algorithm / P. V. Arun in Geocarto international, vol 29 n° 5 - 6 (August - October 2014)PermalinkCoastal and marine ecological changes and fish cage culture development in Phu Quoc, Vietnam (2001 to 2011) / Diep Thi Hong Nguyen in Geocarto international, vol 29 n° 5 - 6 (August - October 2014)PermalinkDemarcation of potential avalanche sites using remote sensing and ground observations: a case study of Gangotri glacier / Snehmani A. Bhardwaj in Geocarto international, vol 29 n° 5 - 6 (August - October 2014)PermalinkGeospatial method for computing supplemental multi-decadal US coastal land use and land cover classification products, using Landsat data and C-CAP products / Joseph P. Spruce in Geocarto international, vol 29 n° 5 - 6 (August - October 2014)PermalinkHyperspectral data dimensionality reduction and the impact of multi-seasonal Hyperion EO-1 imagery on classification accuracies of tropical forest species / Manjit Saini in Photogrammetric Engineering & Remote Sensing, PERS, vol 80 n° 8 (August 2014)PermalinkImproved capability in stone pine forest mapping and management in Lebanon using hyperspectral CHTIS-Proba data relative to Landsat ETM+ / Mohamad Awad in Photogrammetric Engineering & Remote Sensing, PERS, vol 80 n° 8 (August 2014)PermalinkLand-use and land tenure explain spatial and temporal patterns in terrestrial net primary productivity (NPP) in Southern Africa / Godfrey Pachavo in Geocarto international, vol 29 n° 5 - 6 (August - October 2014)PermalinkA rule-based parameter aided with object-based classification approach for extraction of building and roads from WorldView-2 images / Zahra Ziaei in Geocarto international, vol 29 n° 5 - 6 (August - October 2014)PermalinkAn inventory of the above ground biomass in the Mau Forest Ecosystem, Kenya / Mwangi James Kinyanjui in Open journal of forestry, vol 4 n° 10 (July 2014)Permalink