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Use 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)
[article]
Titre : Use of high-resolution satellite imagery for investigating acid mine drainage from artisanal coal mining in North-Eastern India Type de document : Article/Communication Auteurs : B. Blahwar, Auteur ; S. Srivastav, Auteur ; J. Smeth, Auteur Année de publication : 2012 Article en page(s) : pp 231 - 247 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] fer
[Termes IGN] image à très haute résolution
[Termes IGN] image Cartosat-1
[Termes IGN] image IRS-LISS
[Termes IGN] image IRS-P6
[Termes IGN] image panchromatique
[Termes IGN] image Quickbird
[Termes IGN] Inde
[Termes IGN] mine de charbon
[Termes IGN] pollution des eaux
[Termes IGN] ruissellement
[Termes IGN] sol acideRésumé : (Auteur) Acid mine drainage (AMD) is one of the major environmental problems in coalmining districts. The present study explores the potential of high-resolution satellite (HRS) imagery, combined with field-based geochemical sampling, for investigating the AMD-related issues arising from artisanal coal mining activity in a part of North-Eastern India. The HRS imagery available from Indian remote sensing satellites (CARTOSAT-1 and RESOURCESAT-1) and QuickBird are used for this purpose. The study demonstrates that (1) the artisanal ‘rat-hole' type coal mines prevalent in the study area can be mapped to a fair extent through merged CARTOSAT-1 PAN and RESOURCESAT-1 LISS-IV imagery; (2) coal mining-induced enhanced dissolution of pyrites appears to be the main mechanism for the occurrence of AMD exacerbating the problem of acid rock drainage (ARD); and (3) HRS imagery can be used to detect iron precipitates on streambeds indicating the presence of AMD. Numéro de notice : A2012-248 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106049.2011.628761 Date de publication en ligne : 05/12/2011 En ligne : https://doi.org/10.1080/10106049.2011.628761 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31694
in Geocarto international > vol 27 n° 3 (June 2012) . - pp 231 - 247[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 059-2012031 RAB Revue Centre de documentation En réserve L003 Disponible Geophysical methods for CO2 plume imaging: Comparison of performances / H. Fabriol in Energy Procedia, vol 4 ([01/02/2011])
[article]
Titre : Geophysical methods for CO2 plume imaging: Comparison of performances Type de document : Article/Communication Auteurs : H. Fabriol, Auteur ; A. Bitri, Auteur ; B. Bourgeois, Auteur ; M. Delatre, Auteur ; J.F. Girard, Auteur ; Gwendoline Pajot-Métivier , Auteur ; J. Rohmer, Auteur Année de publication : 2011 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] dioxyde de carbone
[Termes IGN] géophysique externeRésumé : (auteur) Geophysical methods are adequate for imaging the CO2 plume in order to follow its migration within the reservoir and possible leakages through the caprock formation. In particular, changes in density, seismic velocity or electrical resistivity are associated with changes in the gas saturation and make methods such as gravity, 4D seismic and electrical resistivity tomography (ERT) or CSEM powerful tools to follow up the fate of injected CO2. Respect to the minimum amount of CO2 stored that can be quantified for verification purpose, there is an order of magnitude between 4D seismic (few 100s of Kt) and the other two methods (few Mt). Respect to the detection of leakage at the reservoir level, only 4D seismic could be considered as useful. Using downhole measurements, such as crosshole electric or downhole gravity will increase the resolution of these methods and therefore its ability to detect leakage. In case of CO2 leakage upwards and accumulation within a secondary reservoir located at a few hundreds of meters depth, the resolution of the three methods is increased by several order of magnitude and small amounts of CO2 could be detected, depending whether it is in gaseous phase or dissolved. It is expected that controlled experiments of leaking CO2 at shallow depth will help to define more precisely the conditions of use of the three methods. Numéro de notice : A2011-631 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.egypro.2011.02.290 En ligne : https://doi.org/10.1016/j.egypro.2011.02.290 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=101408
in Energy Procedia > vol 4 [01/02/2011][article]Modelling forest management within a global vegetation model - Part 2: Model validation from a tree to a continental scale / V. Bellassen in Ecological modelling, vol 222 n° 1 (janvier 10, 2011)
[article]
Titre : Modelling forest management within a global vegetation model - Part 2: Model validation from a tree to a continental scale Type de document : Article/Communication Auteurs : V. Bellassen, Auteur ; G. Le Maire, Auteur ; O. Guin, Auteur ; Jean-François Dhôte, Auteur ; Philippe Ciais, Auteur ; Nicolas Viovy, Auteur Année de publication : 2011 Article en page(s) : pp 57 - 75 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] biomasse forestière
[Termes IGN] carbone
[Termes IGN] modélisation de la forêt
[Termes IGN] stress hydriqueMots-clés libres : ORCHIDEE-FM Résumé : (auteur) The construction of a new forest management module (FMM) within the ORCHIDEE global vegetation model (GVM) allows a realistic simulation of biomass changes during the life cycle of a forest, which makes many biomass datasets suitable as validation data for the coupled ORCHIDEE-FM GVM. This study uses three datasets to validate ORCHIDEE-FM at different temporal and spatial scales: permanent monitoring plots, yield tables, and the French national inventory data. The last dataset has sufficient geospatial coverage to allow a novel type of validation: inventory plots can be used to produce continuous maps that can be compared to continuous simulations for regional trends in standing volumes and volume increments. ORCHIDEE-FM performs better than simple statistical models for stand-level variables, which include tree density, basal area, standing volume, average circumference and height, when management intensity and initial conditions are known: model efficiency is improved by an average of 0.11, and its average bias does not exceed 25%. The performance of the model is less satisfying for tree-level variables, including extreme circumferences, tree circumference distribution and competition indices, or when management and initial conditions are unknown. At the regional level, when climate forcing is accurate for precipitation, ORCHIDEE-FM is able to reproduce most productivity patterns in France, such as the local lows of needleleaves in the Parisian basin and of broadleaves in south-central France. The simulation of water stress effects on biomass in the Mediterranean region, however, remains problematic, as does the simulation of the wood increment for coniferous trees. These pitfalls pertain to the general ORCHIDEE model rather than to the FMM. Overall, with an average bias seldom exceeding 40%, the performance of ORCHIDEE-FM is deemed reliable to use it as a new modelling tool in the study of the effects of interactions between forest management and climate on biomass stocks of forests across a range of scales from plot to country. Numéro de notice : A2011-285 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1016/j.ecolmodel.2010.08.038 Date de publication en ligne : 22/10/2010 En ligne : https://doi.org/10.1016/j.ecolmodel.2010.08.038 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=102459
in Ecological modelling > vol 222 n° 1 (janvier 10, 2011) . - pp 57 - 75[article]Rapport du directeur sur l'activité et la gestion du Bureau International des Poids et Mesures (BIPM), 1er juillet 2010 - 31 décembre 2011 / Bureau international des poids et mesures (2011)
Titre : Rapport du directeur sur l'activité et la gestion du Bureau International des Poids et Mesures (BIPM), 1er juillet 2010 - 31 décembre 2011 Titre original : Director's report on the activity and management of the International bureau of weights and measures (BIPM), 1 July 2010 - 31 december 2011 Type de document : Rapport Auteurs : Bureau international des poids et mesures , Auteur ; Organisation intergouvernementale de la convention du metre, Auteur Editeur : Sèvres : Bureau International des Poids et Mesures BIPM Année de publication : 2011 Collection : Rapport du directeur sur l'activité et la gestion du BIPM, ISSN 1606-3740 num. 12 Importance : 168 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-92-822-2247-8 Langues : Français (fre) Descripteur : [Vedettes matières IGN] Métrologie
[Termes IGN] administration
[Termes IGN] chimie
[Termes IGN] convention du mètre
[Termes IGN] électricité
[Termes IGN] masse
[Termes IGN] publication
[Termes IGN] rayonnement ionisant
[Termes IGN] tempsNuméro de notice : 15750 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Rapport d'activité En ligne : https://www.bipm.org/documents/20126/41865219/DIR2011-FR.pdf/ Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=40741 Modelling forest management within a global vegetation model - Part 1: Model structure and general behaviour / V. Bellassen in Ecological modelling, vol 221 n° 20 (octobre 2010)
[article]
Titre : Modelling forest management within a global vegetation model - Part 1: Model structure and general behaviour Type de document : Article/Communication Auteurs : V. Bellassen, Auteur ; G. Le Maire, Auteur ; Jean-François Dhôte, Auteur ; Philippe Ciais, Auteur ; Nicolas Viovy, Auteur Année de publication : 2010 Article en page(s) : pp 2458 - 2474 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] biomasse forestière
[Termes IGN] carbone
[Termes IGN] feuillu
[Termes IGN] modèle de simulation
[Termes IGN] modélisation de la forêt
[Termes IGN] production primaire netteMots-clés libres : ORCHIDEE Résumé : (auteur) This article describes a new forest management module (FMM) that explicitly simulates forest stand growth and management within a process-based global vegetation model (GVM) called ORCHIDEE. The net primary productivity simulated by ORCHIDEE is used as an input to the FMM. The FMM then calculates stand and management characteristics such as stand density, tree size distribution, tree growth, the timing and intensity of thinnings and clear-cuts, wood extraction and litter generated after thinning. Some of these variables are then fed back to ORCHIDEE. These computations are made possible with a distribution-based modelling of individual tree size. The model derives natural mortality from the relative density index (rdi), a competition index based on tree size and stand density. Based on the common forestry management principle of avoiding natural mortality, a set of rules is defined to calculate the recurrent intensity and frequency of forestry operations during the stand lifetime. The new-coupled model is called ORCHIDEE-FM (forest management). The general behaviour of ORCHIDEE-FM is analysed for a broadleaf forest in north-eastern France. Flux simulation throughout a forest rotation compare well with the literature values, both in absolute values and dynamics. Results from ORCHIDEE-FM highlight the impact of forest management on ecosystem C-cycling, both in terms of carbon fluxes and stocks. In particular, the average net ecosystem productivity (NEP) of 225 gC m−2 year−1 is close to the biome average of 311 gC m−2 year−1. The NEP of the “unmanaged” case is 40% lower, leading us to conclude that management explains 40% of the cumulated carbon sink over 150 years. A sensitivity analysis reveals 4 major avenues for improvement: a better determination of initial conditions, an improved allocation scheme to explain age-related decline in productivity, and an increased specificity of both the self-thinning curve and the biomass-diameter allometry. Numéro de notice : A2010-686 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1016/j.ecolmodel.2010.07.008 Date de publication en ligne : 20/08/2010 En ligne : https://doi.org/10.1016/j.ecolmodel.2010.07.008 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=102452
in Ecological modelling > vol 221 n° 20 (octobre 2010) . - pp 2458 - 2474[article]Evaluation de teneurs en plomb dans les rejets des mines de Jalta et de Bougrine (Tunisie) en se basant sur données satellitaires (ASTER) / S. Gannouni in Photo interprétation, European journal of applied remote sensing, vol 46 n° 3-4 (septembre 2010)PermalinkSpatial variability of soil nutrients and GIS-based nutrient management in Yongji County, China / Qian Zhang in International journal of geographical information science IJGIS, vol 24 n°7-8 (july 2010)PermalinkBois-énergie : une fausse « bonne solution » pour atténuer l'effet de serre / Philippe Leturcq in Forêt entreprise, n° 192 (mai 2010/3)PermalinkUsing landscape characteristics to define an adjusted distance metric for improving kriging interpolations / S. Lyon in International journal of geographical information science IJGIS, vol 24 n° 5-6 (may 2010)PermalinkEffects of stand density on ecosystem properties of subalpine forests in the southern Rocky Mountains, USA / Sharon J. Hall in Annals of Forest Science, vol 67 n° 1 (January-February 2010)PermalinkLes inventaires forestiers nationaux, observatoires et tableaux de bord permanent des espaces boisés, journée d'étude, 12 mai 2010, Gembloux, Belgique / Jacques Rondeux (2010)PermalinkLes marchés du carbone forestier : quelle est la place de la forêt dans les marchés du carbone ? Quelles sont les tendances à anticiper ? Comment financer un projet et vendre des crédits ? / Clément Chenost (2010)PermalinkRapport du directeur sur l'activité et la gestion du Bureau International des Poids et Mesures (BIPM), 1er juillet 2009 - 30 juin 2010 / Bureau international des poids et mesures (2010)PermalinkRetrieval of dissolved inorganic nitrogen from multi-temporal MODIS data in Haizhou Bay / Y. Xu in Marine geodesy, vol 33 n° 1 (January - March 2010)PermalinkFall fertilization of Pinus resinosa seedlings: nutrient uptake, cold hardiness, and morphological development / M. Anisul Islam in Annals of Forest Science, Vol 66 n° 7 (October - November 2009)PermalinkImpact des haies sur la ressource en eau et en sol à partir de l’exemple de la Bretagne : résultats récents et perspectives / Catherine Grimaldi ; Philippe Merot in Revue forestière française, vol 61 n° 5 (septembre - octobre 2009)Permalinkn° 18 - juillet 2009 - La qualité des rivières s’améliore pour plusieurs polluants, à l'exception des nitrates (Bulletin de Le point sur) / Aurélie DuboisPermalinkEffects of atmospheric and climate change at the timberline of the Central European Alps / Gerhard Wieser in Annals of Forest Science, Vol 66 n° 4 (June 2009)PermalinkForest floor contribution to phosphorus nutrition: experimental data / Laurent Augusto in Annals of Forest Science, Vol 66 n° 5 (July - August 2009)PermalinkTemporal trends in the foliar nutritional status of the French, Walloon and Luxembourg broad-leaved plots of forest monitoring / Mathieu Jonard in Annals of Forest Science, Vol 66 n° 4 (June 2009)PermalinkVariations of plant and soil 87Sr/86Sr along the slope of a tropical inselberg / Anne Poszwa in Annals of Forest Science, Vol 66 n° 5 (July - August 2009)PermalinkLa forêt redécouverte / Claude Leroy (2009)PermalinkInfluence of microstructured carbon materials on Sequoia sempervirens (D. Don.) Endl. in vitro culture / Raluca Stoiculescu in Annals of forest research, vol 52 n° 1 (January 2009)PermalinkRapport de la conférence des experts et de la table ronde sur la contribution Climat et Energie / Michel Rocard (juillet 2009)PermalinkRapport du directeur sur l'activité et la gestion du Bureau international des poids et mesures (BIPM), 1er juillet 2008 - 30 juin 2009 / Bureau international des poids et mesures (2009)Permalink