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Elaboration and applications of spatial soil information systems and digital soil mapping at Research Institute for Soil Science and Agricultural Chemistry of the Hungarian Academy of Sciences / László Pásztor in Geocarto international, vol 28 n° 1-2 (February - May 2013)  

Public [article]  inGeocarto international > vol 28 n° 1-2 (February - May 2013) . - pp 13 - 27 Titre : Elaboration and applications of spatial soil information systems and digital soil mapping at Research Institute for Soil Science and Agricultural Chemistry of the Hungarian Academy of Sciences Type de document : Article/Communication Auteurs : László Pásztor, Auteur ; József Szabó, Auteur ; Zsófia Bakacsi, Auteur ; Annamária Laborczi, Auteur Année de publication : 2013 Article en page(s) : pp 13 - 27 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées [Termes IGN] base de données localisées [Termes IGN] base de données thématiques [Termes IGN] carte pédologique [Termes IGN] Hongrie [Termes IGN] intégration de données [Termes IGN] mise à jour de base de données [Termes IGN] pédologie locale [Termes IGN] système d'information géographique Résumé : (Auteur) Hungary has long traditions in soil survey and mapping. Large amount of soil information is available in various dimensions and generally presented in maps, serving different purposes as to spatial and/or thematic aspects. Increasing the proportion of soil-related data has been digitally processed and organized into various spatial soil information systems (SSISs). The most current countrywide ones have been elaborated by and available at Research Institute for Soil Science and Agricultural Chemistry of the Hungarian Academy of Sciences (RISSAC HAS). The existing maps, data and systems served the society for many years; however, the available data are no longer fully satisfactory for the recent needs of policy making. There were numerous initiatives for the digital processing, completion, improvement and integration of the existing soil datasets. In our paper, we briefly present the national SSISs developed and maintained by our institute and some examples are given regarding how their functionality was extended by digital soil mapping for the solution of specific soil-related demands. Numéro de notice : A2013-274 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106049.2012.685895 Date de publication en ligne : 18/05/2012 En ligne : https://doi.org/10.1080/10106049.2012.685895 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32412 [article]

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Filter design for GOCE gravity gradients / Zs. Polgár Polgár in Geocarto international, vol 28 n° 1-2 (February - May 2013)  

Public [article]  inGeocarto international > vol 28 n° 1-2 (February - May 2013) . - pp 28 - 45 Titre : Filter design for GOCE gravity gradients Type de document : Article/Communication Auteurs : Zs. Polgár Polgár, Auteur ; L. Sujbertb, Auteur ; L. Földváry, Auteur ; P. Asbóth, Auteur ; Jozsef Adam, Auteur Année de publication : 2013 Article en page(s) : pp 28 - 45 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie physique [Termes IGN] données GOCE [Termes IGN] filtrage du rayonnement [Termes IGN] filtre passe-bande [Termes IGN] gradient de gravitation [Termes IGN] levé gravimétrique Résumé : (Auteur) The GOCE satellite observes gravity gradients with unprecedented accuracy and resolution. The GOCE observations are reliable within a well-defined measurement bandwidth. In this study, different finite and infinite impulse response filters have been designed to obtain the demanded pass. Exhaustive time and frequency domain investigations prove that the proposed infinite impulse response filter can be a real competitor of the existing solution of the filtering problem. Numéro de notice : A2013-275 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106049.2012.687401 Date de publication en ligne : 24/05/2012 En ligne : https://doi.org/10.1080/10106049.2012.687401 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32413 [article]

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The online TÉKA database, an integrated approach to landmark inventorization / László Kollányi in Geocarto international, vol 28 n° 1-2 (February - May 2013)  

Public [article]  inGeocarto international > vol 28 n° 1-2 (February - May 2013) . - pp 80 - 94 Titre : The online TÉKA database, an integrated approach to landmark inventorization Type de document : Article/Communication Auteurs : László Kollányi, Auteur ; Attila Csemez, Auteur ; Sándor Jombach, Auteur ; Zsolt Szilvácsku, Auteur Année de publication : 2013 Article en page(s) : pp 80 - 94 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées [Termes IGN] base de données foncières [Termes IGN] base de données thématiques [Termes IGN] Hongrie [Termes IGN] inventaire [Termes IGN] patrimoine culturel [Termes IGN] protection du patrimoine [Termes IGN] WebSIG Résumé : (Auteur) The reduction of untouched areas and the increase in residential, agricultural and industrial areas have gained speed in recent decades. As a result of the changes, one can often observe the disappearance of landmarks that had been connected to production, habitation and transportation. The first step for the preservation of landmarks is their identification and inventorization. In the ordinary sense of the word, ‘landmarks’ mean the important landscape heritage of national history and culture, which need to be identified, protected and preserved for future generations. The purpose of the TÉKA project was to compile a landmark cadastral register that will contribute to the preservation of landscape-related and cultural heritage in Hungary. The landmark cadastral is a Wikipedia-like GIS-based web site. One of the novelties of the TÉKA database is that the data obtained from various sources are gathered in a common, online GIS and integrated into a uniform meta database. Numéro de notice : A2013-276 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106049.2012.726277 Date de publication en ligne : 18/10/2012 En ligne : https://doi.org/10.1080/10106049.2012.726277 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32414 [article]

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Spatially variable surface elevation changes and estimated melt water contribution of Continental Glacier in the Wind River Range, Wyoming, USA, 1966-2011 / Jeffrey A. Vanlooy in Geocarto international, vol 28 n° 1-2 (February - May 2013)  

Public [article]  inGeocarto international > vol 28 n° 1-2 (February - May 2013) . - pp 98 - 113 Titre : Spatially variable surface elevation changes and estimated melt water contribution of Continental Glacier in the Wind River Range, Wyoming, USA, 1966-2011 Type de document : Article/Communication Auteurs : Jeffrey A. Vanlooy, Auteur ; Richard R. Forster, Auteur ; David Barta, Auteur ; James Turrin, Auteur Année de publication : 2013 Article en page(s) : pp 98 - 113 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale [Termes IGN] analyse diachronique [Termes IGN] bassin hydrographique [Termes IGN] données altimétriques [Termes IGN] eau de fonte [Termes IGN] glacier [Termes IGN] Wyoming (Etats-Unis) Résumé : (Auteur) Seasonal snow melt in the Wind River Range, Wyoming, has been ending earlier over the last several decades leaving the region to rely more on supplemental melt water from mountain glaciers. This leads to the necessity of understanding recent glacial changes. This study uses elevation data from 1966, 2006 and 2011 to calculate surface elevation and volume changes that have occurred on Continental Glacier. Results indicate a mean volume change of -0.034 1 0.02 km3 and surface elevation change of -0.36 1 0.19 m y-1 between 1966 and 2006. Detailed spatial analysis shows that the glacier is divided into two sections which are thinning at different rates (lower section: -0.0610.19 m y-1; upper section: -0.51 1 0.19 m y-1). The upper section has experienced 97% of the thinning (or 742.5 * 103 m3 of melt water equivalent per year) and increased its rate since 2006 by 27.5%. Numéro de notice : A2013-277 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106049.2012.665500 Date de publication en ligne : 05/03/2012 En ligne : https://doi.org/10.1080/10106049.2012.665500 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32415 [article]

Exemplaires(1)

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Spectral angle mapper and object-based classification combined with hyperspectral remote sensing imagery for obtaining land use/cover mapping in a Mediterranean region / George P. Petropoulos in Geocarto international, vol 28 n° 1-2 (February - May 2013)  

Public [article]  inGeocarto international > vol 28 n° 1-2 (February - May 2013) . - pp 114 - 129 Titre : Spectral angle mapper and object-based classification combined with hyperspectral remote sensing imagery for obtaining land use/cover mapping in a Mediterranean region Type de document : Article/Communication Auteurs : George P. Petropoulos, Auteur ; Krishna Prasad Vadrevu, Auteur ; Chariton Kalaitzidis, Auteur Année de publication : 2013 Article en page(s) : pp 114 - 129 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique [Termes IGN] carte d'occupation du sol [Termes IGN] classification orientée objet [Termes IGN] classification Spectral angle mapper [Termes IGN] image EO1-Hyperion [Termes IGN] image hyperspectrale [Termes IGN] image Quickbird [Termes IGN] littoral méditerranéen [Termes IGN] matrice d'erreur [Termes IGN] occupation du sol Résumé : (Auteur) In this study, we test the potential of two different classification algorithms, namely the spectral angle mapper (SAM) and object-based classifier for mapping the land use/cover characteristics using a Hyperion imagery. We chose a study region that represents a typical Mediterranean setting in terms of landscape structure, composition and heterogeneous land cover classes. Accuracy assessment of the land cover classes was performed based on the error matrix statistics. Validation points were derived from visual interpretation of multispectral high resolution QuickBird-2 satellite imagery. Results from both the classifiers yielded more than 70% classification accuracy. However, the object-based classification clearly outperformed the SAM by 7.91% overall accuracy (OA) and a relatively high kappa coefficient. Similar results were observed in the classification of the individual classes. Our results highlight the potential of hyperspectral remote sensing data as well as object-based classification approach for mapping heterogeneous land use/cover in a typical Mediterranean setting. Numéro de notice : A2013-278 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106049.2012.668950 Date de publication en ligne : 02/04/2012 En ligne : https://doi.org/10.1080/10106049.2012.668950 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32416 [article]

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Spectral material mapping using hyperspectral imagery : a review of spectral matching and library search methods / Sennaraj Vishnu in Geocarto international, vol 28 n° 1-2 (February - May 2013)  

Public [article]  inGeocarto international > vol 28 n° 1-2 (February - May 2013) . - pp 171 - 190 Titre : Spectral material mapping using hyperspectral imagery : a review of spectral matching and library search methods Type de document : Article/Communication Auteurs : Sennaraj Vishnu, Auteur ; Rama Rao Nidamanuri, Auteur ; R. Bremananth, Auteur Année de publication : 2013 Article en page(s) : pp 171 - 190 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique [Termes IGN] appariement spectral [Termes IGN] image hyperspectrale [Termes IGN] réflectance spectrale [Termes IGN] spectroscopie Résumé : (Auteur) Imaging spectroscopy is an emerging and versatile technique that finds applications in diverse fields concerned with remote identification, discrimination and mapping of materials. The large amount of spectral data produced by hyperspectral imaging necessitates the development of automated techniques that convert imagery directly into thematic maps. Spectral library search method, a method of choice for organic compound identification by the mass spectroscopy, has caught the attention of researchers as one of the appropriate methods for an efficient exploitation of high quality spectral data available from the hyperspectral imaging systems. Given the apparent increase in the number of papers appearing on the subject as well as the variety of methods proposed, it is reasonable to say that the field of automated interpretation of reflectance spectral data has passed its infancy now gaining important space in the scientific community. We present an overall view of the literature relevant to the development of library search method, the various search algorithms and systems available in the purview for developing an automated hyperspectral data analysis system for material identification. Numéro de notice : A2013-279 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106049.2012.665498 Date de publication en ligne : 25/04/2012 En ligne : https://doi.org/10.1080/10106049.2012.665498 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32417 [article]

Exemplaires(1)

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059-2013011	RAB	Revue	Centre de documentation	En réserve L003	Disponible