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Automated tools within workflows for 3D structural construction from surface and subsurface data / O. Fernandez in Geoinformatica, vol 13 n° 3 (September 2009)
[article]
Titre : Automated tools within workflows for 3D structural construction from surface and subsurface data Type de document : Article/Communication Auteurs : O. Fernandez, Auteur ; S. Jones, Auteur ; N. Armstrong, Auteur ; G. Johnson, Auteur ; et al., Auteur Année de publication : 2009 Article en page(s) : pp 292 - 304 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique
[Termes IGN] analyse de données
[Termes IGN] corrélation automatique de points homologues
[Termes IGN] données géologiques
[Termes IGN] modèle numérique de sous-sol
[Termes IGN] modélisation 3D
[Termes IGN] optimisation (mathématiques)
[Termes IGN] reconstruction 3D
[Termes IGN] stratigraphieRésumé : (Auteur) Mainstream techniques for the construction of 3D geological models frequently rely on high-density subsurface datasets, such as 3D seismic surveys or dense 2D seismic grids. In settings where the available geological and/or geophysical data are relatively sparse, the construction of a consistent 3D structural framework is seldom straightforward and is strongly dependent on the optimization of the use of surface data. To deal with this challenge, workflows for constructing 3D models from sparse surface data have been proposed by multiple authors. This paper presents three automated techniques which optimize the use of data and enhance the time-efficiency of 3D model construction: 3D geological contact analysis, 3D dip-domain construction, and 3D isopach measurement and construction. Copyright Springer Numéro de notice : A2009-253 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1007/s10707-008-0059-y En ligne : https://doi.org/10.1007/s10707-008-0059-y Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29883
in Geoinformatica > vol 13 n° 3 (September 2009) . - pp 292 - 304[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 057-09031 RAB Revue Centre de documentation En réserve L003 Disponible Comparison of 2D and 3D computer models for the M. Salta rock fall, Vajont Valley, northern Italy / F. Tagliavini in Geoinformatica, vol 13 n° 3 (September 2009)
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Titre : Comparison of 2D and 3D computer models for the M. Salta rock fall, Vajont Valley, northern Italy Type de document : Article/Communication Auteurs : F. Tagliavini, Auteur ; F. Guzzeti, Auteur ; P. Reichenbach, Auteur ; et al., Auteur Année de publication : 2009 Article en page(s) : pp 323 - 337 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique
[Termes IGN] analyse comparative
[Termes IGN] effondrement de terrain
[Termes IGN] Italie
[Termes IGN] logiciel de simulation
[Termes IGN] modélisation 2D
[Termes IGN] modélisation 3D
[Termes IGN] montagne
[Termes IGN] risque naturel
[Termes IGN] simulation
[Termes IGN] utilisation du solRésumé : (Auteur) A rock fall occurs when a fragment of rock is detached from a cliff and travels down-slope at high speed. Rock falls are a constant hazard in mountainous regions and pose a significant threat to the population. In this paper, a comparison of software designed to model rock falls is presented. The computer codes selected for the experiment are STONE and RocFall®. STONE is a research code for the 3-dimensional simulation of rock falls. RocFall® is commercial software widely used for the 2-dimensional simulation of rock falls along user defined topographic profiles. The two computer programs require similar input and provide comparable outputs, allowing for a quantitative evaluation of their modelling results. To compare the software, the Monte Salta rock fall, in northern Italy, was selected. Specific tests were designed to compare the ability of the software to predict the maximum travel distance of the falling boulders, and the distance from the ground of the computed rock fall trajectories. Results indicate that the two rock fall modelling codes provide similar—but not identical—results. In general, STONE computes higher and longer rock fall trajectories than RocFall®, and allows identifying a larger area as potentially affected by falling boulders. Copyright Springer Numéro de notice : A2009-255 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1007/s10707-008-0071-2 En ligne : https://doi.org/10.1007/s10707-008-0071-2 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29885
in Geoinformatica > vol 13 n° 3 (September 2009) . - pp 323 - 337[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 057-09031 RAB Revue Centre de documentation En réserve L003 Disponible A discrete global grid system based on the parallels plane projection / T. Ma in International journal of geographical information science IJGIS, vol 23 n°9-10 (september 2009)
[article]
Titre : A discrete global grid system based on the parallels plane projection Type de document : Article/Communication Auteurs : T. Ma, Auteur ; Y. Zhou, Auteur ; et al., Auteur Année de publication : 2009 Article en page(s) : pp 1297 - 1313 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Projections
[Termes IGN] déformation géométrique
[Termes IGN] ellipsoïde de révolution
[Termes IGN] parallèle
[Termes IGN] partitionnement par bloc
[Termes IGN] projection équivalenteRésumé : (Auteur) We developed a direct partitioning method to construct a seamless discrete global grid system (DGGS) with any resolution based on a two-dimensional projected plane and the earth ellipsoid. This DGGS is composed of congruent square grids over the projected plane and irregular ellipsoidal quadrilaterals on the ellipsoidal surface. A new equal area projection named the parallels plane (PP) projection derived from the expansion of the central meridian and parallels has been employed to perform the transformation between the planar squares and the corresponding ellipsoidal grids. The horizontal sides of the grids are parts of the parallel circles and the vertical sides are complex ellipsoidal curves, which can be obtained by the inverse expression of the PP projection. The partition strategies, transformation equations, geometric characteristics and distortions for this DGGS have been discussed. Our analysis proves that the DGGS is area-preserving while length distortions only occur on the vertical sides off the central meridian. Angular and length distortions positively correlate to the increase in latitudes and the spanning of longitudes away from a chosen central meridian. This direct partition only generates a small number of broken grids that can be treated individually. Copyright Taylor & Francis Numéro de notice : A2009-390 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/POSITIONNEMENT Nature : Article DOI : 10.1080/13658810802344150 En ligne : https://doi.org/10.1080/13658810802344150 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30020
in International journal of geographical information science IJGIS > vol 23 n°9-10 (september 2009) . - pp 1297 - 1313[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-09061 RAB Revue Centre de documentation En réserve L003 Disponible GIS, multi-criteria and multi-factor spatial analysis for the probability assessment of the existence of illegal landfills / G. Biotto in International journal of geographical information science IJGIS, vol 23 n°9-10 (september 2009)
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Titre : GIS, multi-criteria and multi-factor spatial analysis for the probability assessment of the existence of illegal landfills Type de document : Article/Communication Auteurs : G. Biotto, Auteur ; S. Silvestri, Auteur ; L. Gobbo, Auteur ; et al., Auteur Année de publication : 2009 Article en page(s) : pp 1233 - 1244 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale
[Termes IGN] analyse multicritère
[Termes IGN] analyse spatiale
[Termes IGN] contamination
[Termes IGN] décharge
[Termes IGN] droit
[Termes IGN] protection de l'environnement
[Termes IGN] risque environnemental
[Termes IGN] système d'information géographique
[Termes IGN] télédétection spatiale
[Termes IGN] VeniseRésumé : (Auteur) This work deals with the identification of potentially contaminated areas using remote sensing, geographic information systems (GIS) and multi-criteria spatial analysis. The identification of unknown illegal landfills is a crucial environmental problem in all developed and developing countries, where a large number of illegal waste deposits exist as a result of fast, and relatively unregulated, industrial growth over the past century. The criteria used to perform the spatial analysis are here selected by considering the characteristics which are 'desirable' for an illegal waste disposal site, chiefly related to the existence of roads for easy access and to a low population density which facilitates unnoticed dumping of illegal waste materials. A large dataset describing known legal and illegal landfills and the context of their location (population, road network, etc.) was used to perform a spatial statistical analysis to select factors and criteria allowing for the identification of the known waste deposits. The final result is a map describing the likelihood of an illegal waste deposit to be located at any arbitrary location. Such a probability map is then used together with remote sensing techniques to narrow down the set of possibly contaminated sites (Silvestri and Omri, 2008), which are candidates for further analyses and field investigations. The importance of the integration of GIS and remote sensing is highlighted and represents a key instrument for environmental management and for the spatially-distributed characterization of possible uncontrolled landfill sites. Copyright Taylor & Francis Numéro de notice : A2009-387 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810802112128 En ligne : https://doi.org/10.1080/13658810802112128 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30017
in International journal of geographical information science IJGIS > vol 23 n°9-10 (september 2009) . - pp 1233 - 1244[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-09061 RAB Revue Centre de documentation En réserve L003 Disponible GNSS-R [GNSS-Reflectometry]: a space asset for non-space applications / A. Egido in Geoinformatics, vol 12 n° 6 (01/09/2009)
[article]
Titre : GNSS-R [GNSS-Reflectometry]: a space asset for non-space applications Type de document : Article/Communication Auteurs : A. Egido, Auteur ; et al., Auteur Année de publication : 2009 Article en page(s) : 3 p. ; pp 40 - 42 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale
[Termes IGN] humidité du sol
[Termes IGN] neige
[Termes IGN] positionnement par GNSS
[Termes IGN] réflexion spéculaire
[Termes IGN] surveillance de la végétationRésumé : (Editeur) Starlab Barcelona is the developer of Oceanpal, a fully operational GNSS-R system for water-oriented services (see Figure 1). This article provides a brief description of this instrument and the range of water applications it offers: sea state monitoring and sea level monitoring, as well as inland water (i.e. lake) applications. Moreover, recent research has evidenced the applicability of this instrument for soil moisture related applications and measurement of land bio-geophysical parameters. [extrait] The fundamentals behind this concept are to use not only the direct GNSS signals coming from the transmitting satellites, but also to process the same GNSS signals reflected from the Earth's surface (see Figure 2 for the on-ground case). The direct and reflected signals are compared in order to extract some relevant geophysical information, especially related to water surface (inland or sea). In order to exploit this concept, a GNSS-R instrument (Oceanpal in particular) features a zenith-looking antenna that gathers the direct signal, and a nadir-looking antenna that collects the reflected signal. Copyright GEOinformatics Numéro de notice : A2009-321 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29951
in Geoinformatics > vol 12 n° 6 (01/09/2009) . - 3 p. ; pp 40 - 42[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 262-09061 SL Revue Centre de documentation Revues en salle Disponible Going to Shawback (JORDAN) and getting the data back: toward a 3D dedicated to medieval archeology / P. Drap in Bulletin des sciences géographiques, n° 24 (Septembre 2009)PermalinkInterferometric SAR for characterization of ravines as a function of their density, depth, and surface cover / R.S. Chatterjee in ISPRS Journal of photogrammetry and remote sensing, vol 64 n° 5 (September - October 2009)PermalinkNaïve Cartography : how intuitions about display configuration can hurt performance / M. Hegarty in Cartographica, vol 44 n° 3 (September 2009)PermalinkOne year in orbit: GIOVE-B E1 CBOC signal quality assessment / M. Sollner in GPS world, vol 20 n° 9 (September 2009)PermalinkRemote sensing of the outgoing surface infrared-radiation of regional faults and its geophysical indicators / N. Vilor in Photo interprétation, European journal of applied remote sensing, vol 45 n° 3 (septembre 2009)PermalinkSemantic web services-based process planning for earth science applications / P. Yue in International journal of geographical information science IJGIS, vol 23 n°9-10 (september 2009)PermalinkLes SIG : un outil d'aide à la diffusion du bilan des parcs naturels / Kevin Dabert in Géomatique expert, n° 70 (01/09/2009)PermalinkSignal authentication: a secure civil GNSS for today / S. Lo in Inside GNSS, vol 4 n° 5 (September - October 2009)PermalinkStereo analysis of high-resolution SAR images for building height estimation in cases of orthogonal aspect directions / Uwe Soergel in ISPRS Journal of photogrammetry and remote sensing, vol 64 n° 5 (September - October 2009)PermalinkSyGEMe, Système de GEstion Municipale intégrée du cycle de l'eau / F. Kuchlera in Géomatique expert, n° 70 (01/09/2009)Permalink