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Noise simulation and correction in synthetic airborne TIR Data for mineral quantification / Christoph Hecker in IEEE Transactions on geoscience and remote sensing, vol 54 n° 3 (March 2016)
[article]
Titre : Noise simulation and correction in synthetic airborne TIR Data for mineral quantification Type de document : Article/Communication Auteurs : Christoph Hecker, Auteur ; Dean Riley, Auteur ; Mark Van Der Meijde, Auteur ; et al., Auteur Année de publication : 2016 Article en page(s) : pp 1545 - 1553 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique
[Termes IGN] erreur systématique
[Termes IGN] image aérienne
[Termes IGN] image hyperspectrale
[Termes IGN] image thermique
[Termes IGN] prospection minérale
[Termes IGN] quartz
[Termes IGN] rapport signal sur bruit
[Termes IGN] rayonnement infrarouge thermique
[Termes IGN] régression
[Termes IGN] simulationRésumé : (Auteur) Rock-forming minerals (such as feldspar and quartz) can be identified and quantified from thermal infrared (TIR) laboratory spectroscopy using spectral models. This paper uses synthetic airborne TIR spectra to test whether the hyperspectral Spatially Enhanced Broadband Array Spectrograph System (SEBASS) would theoretically be able to detect quartz and feldspar minerals and quantitatively predict mineral modes in felsic igneous rocks. Data from a previous laboratory study were used to simulate TIR spectra with band locations and noise levels of the SEBASS sensor. The quantitative partial least squares regression (PLSR) models from that study were applied to newly created synthetic SEBASS data, and results were compared with the predictions from the previous study. Predicted compositions based on SEBASS band positions are nearly identical (ρ = 0.995) to those based on laboratory resolution. Results are still reliable [prediction errors within 0.4% (absolute)] to the original laboratory PLSR predictions when adding up to 1% noise (about five times the SEBASS noise level) to the synthetic data. Prediction errors rapidly increase when noise levels beyond 1% are used. These results show that SEBASS' spectral resolution, spectral coverage, and signal-to-noise levels are sufficient to quantitatively predict quartz and feldspar amounts, and feldspar compositions with models based on PLSR. Spectral distortions, such as reduced spectral contrast, tilts, and vertical shifts, must be compensated for before these quantitative models are applied. A mean and standard deviation (MASD) normalization is proposed using a set of ground data for compensating systematic errors that are common to all image pixels. Numéro de notice : A2016-124 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2015.2482386 En ligne : https://doi.org/10.1109/TGRS.2015.2482386 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=80005
in IEEE Transactions on geoscience and remote sensing > vol 54 n° 3 (March 2016) . - pp 1545 - 1553[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 065-2016031 SL Revue Centre de documentation Revues en salle Disponible Above-ground and below-ground competition between the willow Salix caprea and its understorey / Ondřej Mudrák in Journal of vegetation science, vol 27 n° 1 (January 2016)
[article]
Titre : Above-ground and below-ground competition between the willow Salix caprea and its understorey Type de document : Article/Communication Auteurs : Ondřej Mudrák, Auteur ; Markéta Hermová, Auteur ; Cecilie Tesnerová, Auteur ; Jana Rydlová, Auteur ; Jan Frouz, Auteur Année de publication : 2016 Article en page(s) : pp 156 - 164 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] composition floristique
[Termes IGN] mine
[Termes IGN] plante herbacée
[Termes IGN] République Tchèque
[Termes IGN] Salix caprea
[Termes IGN] sous-bois
[Vedettes matières IGN] Ecologie forestièreRésumé : (auteur) Questions : Has the observed decline in the willow Salix caprea L., one of the most common colonizers of post-mining sites in Central Europe, contributed to changes in the rest of the plant community on post-mining sites? How does S. caprea modify its understorey? How is the understorey vegetation affected by above-ground and below-ground competition with S. caprea?
Location : Heaps after coal mining near Sokolov, Czech Republic (50°14′21″ N, 12°40′45″ E).
Methods : The effects of above-ground and below-ground competition with the willow S. caprea on its understorey plant community were studied in un-reclaimed post-mining sites. Below-ground competition was evaluated by comparing (1) frames inserted into the soil that excluded woody roots (frame treatment), (2) frames that initially excluded woody root growth but then allowed regrowth of the roots (open-frame treatment), and (3) undisturbed soil (no-frame treatment). These treatments were combined with S. caprea thinning to assess the effect of above-ground competition.
Results : Three years after the start of the experiment, above-ground competition from S. caprea (as modified by thinning of the S. caprea canopy) had not affected understorey biomass or species number, but had affected species composition. In contrast, below-ground competition significantly affected both the above-ground and below-ground biomass of the understorey. The above-ground biomass of the understorey was larger in the frame treatment (which excluded woody roots) than in the other two treatments. The below-ground biomass of the understorey was larger in the frame than in the open-frame treatment. Unlike above-ground competition (light availability), below-ground competition did not affect understorey species composition.
Conclusions : Our results suggest that S. caprea is an important component during plant succession on post-mining sites because it considerably modifies its understorey plant community. Below-ground competition is a major reason for the low cover and biomass of the herbaceous understorey in S. caprea stands on post-mining sites.Numéro de notice : A2016-362 Affiliation des auteurs : non IGN Thématique : BIODIVERSITE/FORET Nature : Article DOI : 10.1111/jvs.12330 En ligne : http://dx.doi.org/10.1111/jvs.12330 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=81099
in Journal of vegetation science > vol 27 n° 1 (January 2016) . - pp 156 - 164[article]Spatial distribution of coal quality parameters with respect to production requirements: an adaptive neuro-fuzzy application for the Can coal field (Turkey) / Ali Kayabasi in Geocarto international, vol 31 n° 1 - 2 (January - February 2016)
[article]
Titre : Spatial distribution of coal quality parameters with respect to production requirements: an adaptive neuro-fuzzy application for the Can coal field (Turkey) Type de document : Article/Communication Auteurs : Ali Kayabasi, Auteur ; Dilek Turer, Auteur ; Nurgul Yesiloglu-Gultekin, Auteur Année de publication : 2016 Article en page(s) : pp 193-209 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie thématique
[Termes IGN] carte géologique
[Termes IGN] grotte
[Termes IGN] impact sur l'environnement
[Termes IGN] inférence
[Termes IGN] Inférence floue
[Termes IGN] mine de charbon
[Termes IGN] outil d'aide à la décision
[Termes IGN] pollution atmosphérique
[Termes IGN] répartition géographiqueRésumé : (Auteur) Determination of spatial distribution of coal quality parameters can ease management of the operations in coal mines. In this study, in order to provide guidance for the excavations, Can coal mine production map showing regions having suitable coal parameters as feed coals for a power plant and also for public sale was prepared using adaptive neuro-fuzzy inference system tool. Statistical relationships among calorific value, ash content and sulphur content were evaluated using the data obtained from boreholes opened in the mine between 2006 and 2009. According to the obtained production map, coals of Can mine are not suitable for public sale because of their high sulphur content and hence they should be blended with low sulphur coals to meet the requirements, before sale. Numéro de notice : A2016-107 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106049.2015.1041564 Date de publication en ligne : 20/05/2015 En ligne : http://www.tandfonline.com/doi/full/10.1080/10106049.2015.1041564 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=80002
in Geocarto international > vol 31 n° 1 - 2 (January - February 2016) . - pp 193-209[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 059-2016011 RAB Revue Centre de documentation En réserve L003 Disponible
Titre : UAV based landscape evolution in dangerous mining environments Type de document : Mémoire Auteurs : Charlotte Wolff, Auteur Editeur : Champs-sur-Marne : Ecole nationale des sciences géographiques ENSG Année de publication : 2016 Importance : 59 p. Format : 21 x 30 cm Note générale : Bibliographie
Rapport de projet pluridisciplinaire, cycle Ingénieur 2e annéeLangues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique
[Termes IGN] Agisoft Photoscan
[Termes IGN] analyse comparative
[Termes IGN] COSI-Corr
[Termes IGN] détection de changement
[Termes IGN] effondrement de terrain
[Termes IGN] ENVI
[Termes IGN] image hyperspectrale
[Termes IGN] mine
[Termes IGN] modèle 3D du site
[Termes IGN] modèle numérique de terrain
[Termes IGN] OpenCV
[Termes IGN] Saxe (Allemagne)
[Termes IGN] structure-from-motion
[Termes IGN] test de performanceIndex. décimale : PROJET Mémoires : Rapports de projet - stage des ingénieurs de 2e année Résumé : (Auteur) L’équipe « Exploration Technology » de l’Helmholtz Institut Freiberg est une équipe qui a été formée très récemment et qui a pour but de créer et tester des outils permettant l’analyse et la surveillance de terrains d’étude en utilisant la photogrammétrie et la télédétection. Ce rapport présente les différents logiciels et scripts testés pour construire des modèles 3D et des Modèles Numériques de Terrain (MNT) avec la méthode de Structure from Motion, regarder les changements au cours du temps et analyser un terrain d’étude. Les principaux logiciels testés sont SURE, Photoscan, OpenCV, Cosi-Corr et ENVI Ces outils ont été utilisés afin d’étudier les changements au niveau de l’ancienne mine de Halle, au Nord de Leipzig. En effet, cette ancienne mine de lignite et de potasse présente un dôme de résidus avec des risques de glissement de terrain et un bassin drainant changeant très rapidement par cristallisation et dissolution de sels. Il s’agit donc d’un terrain idéal pour étudier les changements pouvant survenir au cours du temps. Note de contenu : 1. INTRODUCTION
2. AREA PRESENTATION
2.1. Presentation of the institute of Freiberg
2.2. The history of the open-mine of Halle
2.3. The geological interest of the area
3. PHOTOGRAMMETRIC DATA
3.1. Field acquisition
3.2. 3D-modelling and DEMs
3.3. Orthoimages comparison
4. HYPERSPECTRAL DATA
4.1. Field acquisition
4.2. Hyperspectral images treatment
4.3. Analysis of the images
5. CONCLUSIONNuméro de notice : 22620 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Mémoire de projet pluridisciplinaire Organisme de stage : Helmholtz-Institut Freiberg für Ressourcentechnologie Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=83372 Documents numériques
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22620_UAV based landscape evolution in dangerous mining environments.pdfAdobe Acrobat PDF WebGL based visualisation and analysis of stratigraphic data for the purposes of the mining industry / Adrian Kopec in Procedia Computer Science, vol 51 (2015)
[article]
Titre : WebGL based visualisation and analysis of stratigraphic data for the purposes of the mining industry Type de document : Article/Communication Auteurs : Adrian Kopec, Auteur ; Justyna Bala, Auteur ; Anna Pieta, Auteur Année de publication : 2015 Conférence : ICCS 2015, International Conference on Computational Science, Computational Science at the Gates of Nature 01/06/2015 03/06/2015 Reykjavík Islande Article en page(s) : pp 2869 - 2877 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web
[Termes IGN] base de données localisées 3D
[Termes IGN] données géologiques
[Termes IGN] géovisualisation
[Termes IGN] interface web
[Termes IGN] mine
[Termes IGN] Pologne
[Termes IGN] stratigraphie
[Termes IGN] visualisation 3D
[Termes IGN] webGLRésumé : (auteur) In recent years the combination of databases, data and internet technologies has greatly enhanced the functionality of many systems based on spatial data, and facilitated the dissemination of such information. In this paper, we propose a web-based data visualisation and analysis system for stratigraphic data from a Polish mine, with visualisation and analysis tools which can be accessed via the Internet. WWW technologies such as active web pages and WebGL technology provide a user-friendly interface for browsing, plotting, comparing, and downloading information of interest, without the need for dedicated mining industry software. Numéro de notice : A2015--078 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1016/j.procs.2015.05.450 En ligne : http://dx.doi.org/10.1016/j.procs.2015.05.450 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=84235
in Procedia Computer Science > vol 51 (2015) . - pp 2869 - 2877[article]Subsidence monitoring in coal area using time-series InSAR combining persistent scatterers and distributed scatterers / Zhengjia Zhang in International journal of applied Earth observation and geoinformation, vol 39 (July 2015)PermalinkDetermination of the spatial structure of vegetation on the repository of the mine “Fryderyk” in Tarnowskie Góry, based on airborne laser scanning from the ISOK project and digital orthophotomaps / Marta Szostak in Geodesy and cartography, vol 64 n° 1 (June 2015)PermalinkGeological mapping of Jharia Coalfield, India using GRACE EGM2008 gravity data : a vertical derivative approach / Jitendra Vaish in Geocarto international, vol 30 n° 3 - 4 (March - April 2015)PermalinkRetrieving three-dimensional displacement fields of mining areas from a single InSAR pair / Zhi Wei Li in Journal of geodesy, vol 89 n° 1 (January 2015)PermalinkArchéologie minière et métallurgique en Bolivie : l'apport de l'image satellite aux opérations de prospection en milieu aride / Florian Tereygeol in Photo interprétation, European journal of applied remote sensing, vol 50 n° 1 (mars 2014)PermalinkCombining RapidEye and lidar satellite imagery for mapping of mining and mine reclamation / Aaron E. Maxwell in Photogrammetric Engineering & Remote Sensing, PERS, vol 80 n° 2 (February 2014)PermalinkUsing video acquired from an unmanned aerial vehicle (UAV) to measure fracture orientation in an open-pit mine / Tara McLeod in Geomatica, vol 67 n° 3 (September 2013)PermalinkAn underground-mining detection system based on DInSAR / Z. Hu in IEEE Transactions on geoscience and remote sensing, vol 51 n° 1 Tome 2 (January 2013)PermalinkMapping the distribution of ferric iron minerals on a vertical mine face using derivative analysis of hyperspectral imagery (430–970 nm) / R. Murphy in ISPRS Journal of photogrammetry and remote sensing, vol 75 (January 2013)PermalinkShared Earth modeling / Michel Perrin (2013)PermalinkGeorelief transfiguration in areas affected by open-cast mining / J. Pacina in Transactions in GIS, vol 16 n° 5 (October 2012)PermalinkApport de la géomatique à la cartographie des matières premières naturelles et la gestion des carrières d'exploitations dans le gouvernorat de Gabès pour un développement durable / R. Chaabouni in Géomatique expert, n° 88 (01/09/2012)PermalinkEvaluating classification techniques for mapping vertical geology using field-based hyperspectral sensors / R.J. Murphy in IEEE Transactions on geoscience and remote sensing, vol 50 n° 8 (August 2012)Permalinkvol 27 n° 3 - June 2012 - Remote sensing applications in geosciences with a special regional focus on south Asia (Bulletin de Geocarto international)PermalinkUse of high-resolution satellite imagery for investigating acid mine drainage from artisanal coal mining in North-Eastern India / B. Blahwar in Geocarto international, vol 27 n° 3 (June 2012)PermalinkFuzzy analysis for modeling regional delineation and development: The case of the Sardinian mining geopark / G. Manca in Transactions in GIS, vol 16 n° 1 (February 2012)PermalinkUsefulness of synthetic aperture radar (SAR) interferometry for digital elevation model (DEM) generation and estimation of land surface displacement in Jharia coal field area / Atanu Bhattacharya in Geocarto international, vol 27 n° 1 (February 2012)PermalinkPhosphate mine subsidences deduced from differential interferometry (DInSAR): The Moulares case example (southern Atlas of Tunisia) / Mehdi Ben Hassen in Comptes rendus : Géoscience, vol 343 n° 11-12 (November - December 2011)PermalinkCartographie des eaux souterraines en milieu fissuré par analyse multicritère : Cas de Bondoukou (Côte-d'Ivoire) / M. Youan Ta in Revue internationale de géomatique, vol 21 n° 1 (mars – mai 2011)PermalinkElche : Une dame, des carrières et des cartes / Laurent Costa in Géomatique expert, n° 76 (01/09/2010)Permalink