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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)  

Public [article]  inGeocarto international > vol 27 n° 3 (June 2012) . - pp 231 - 247 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 acide Résumé : (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 [article]

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Code-barres	Cote	Support	Localisation	Section	Disponibilité
059-2012031	RAB	Revue	Centre de documentation	En réserve L003	Disponible