Centre de documentation
scientifique

Towards a multi-scale approach for an Earth observation-based assessment of natural resource exploitation in conflict regions / Elisabeth Schoepfer in Geocarto international, vol 32 n° 10 (October 2017)  

Public [article]  inGeocarto international > vol 32 n° 10 (October 2017) . - pp 1139 - 1158 Titre : Towards a multi-scale approach for an Earth observation-based assessment of natural resource exploitation in conflict regions Type de document : Article/Communication Auteurs : Elisabeth Schoepfer, Auteur ; Kristin Spröhnle, Auteur ; Olaf Kranz, Auteur ; et al., Auteur Année de publication : 2017 Article en page(s) : pp 1139 - 1158 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] analyse d'image orientée objet [Termes IGN] analyse multiéchelle [Termes IGN] Congo [Termes IGN] extraction automatique [Termes IGN] guerre [Termes IGN] image satellite [Termes IGN] observation de la Terre [Termes IGN] occupation du sol [Termes IGN] ressources naturelles [Termes IGN] surveillance agricole Résumé : (Auteur) The exploitation of resources, if not properly managed, can lead to spoiling natural habitats as well as to threatening people’s health, livelihoods and security. The paper discusses a multi-scale Earth observation-based approach to provide independent information related to exploitation activities of natural resources for countries which are experiencing armed conflict. The analyses are based on medium to very high spatial resolution optical satellite data. Object-based image analysis is used for information extraction at these different scales. On a subnational level, conflict-related land cover changes as an indication of potential hot spots for exploitation activities are classified. The regional assessment provides information about potential activity areas of resource exploitation, whereas on a local scale, a site-specific assessment of exploitation areas is performed. The study demonstrates the potential of remote sensing for supporting the monitoring and documentation of natural resource exploitation in conflict regions. Numéro de notice : A2017-670 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106049.2016.1195885 Date de publication en ligne : 23/06/2016 En ligne : https://doi.org/10.1080/10106049.2016.1195885 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=87148 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
059-2017101	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Earth observation-based multi-scale impact assessment of internally displaced person (IDP) camps on wood resources in Zalingei, Darfur / Kristin Spröhnle in Geocarto international, vol 31 n° 5 - 6 (May - June 2016)  

Public [article]  inGeocarto international > vol 31 n° 5 - 6 (May - June 2016) . - pp 575 - 595 Titre : Earth observation-based multi-scale impact assessment of internally displaced person (IDP) camps on wood resources in Zalingei, Darfur Type de document : Article/Communication Auteurs : Kristin Spröhnle, Auteur ; Olaf Kranz, Auteur ; Elisabeth Schoepfer, Auteur ; et al., Auteur Année de publication : 2016 Article en page(s) : pp 575 - 595 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] analyse diachronique [Termes IGN] Darfour [Termes IGN] déboisement [Termes IGN] image Ikonos [Termes IGN] image Quickbird [Termes IGN] image SPOT 4 [Termes IGN] impact sur l'environnement [Termes IGN] migration humaine [Termes IGN] Soudan Résumé : (Auteur) This study describes the development of a semi-automatic object-based image analysis approach for the detection and quantification of deforestation in Zalingei, Darfur, in consequence of the increasing concentration of refugees or internally displaced persons (IDPs) in the region. The classification workflow is based on a multi-scale approach, ranging from the analysis of high resolution SPOT-4 to very high resolution IKONOS and QuickBird satellite imagery between 2003 and 2008. The overall accuracy rates for the classification of the SPOT 4 data ranged from 92% up to 95%, while those for the QuickBird and IKONOS classification have shown values of 88 and 87%, respectively. The resulting trends in woody vegetation cover were compared with the development of the local population and the variability of precipitation. The results show that the strong increase in human population in the Zalingei IDP camps can be associated with considerable decrease in woody vegetation in the camp vicinity. Numéro de notice : A2016-171 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106049.2015.1062053 Date de publication en ligne : 03/08/2015 En ligne : http://www.tandfonline.com/doi/full/10.1080/10106049.2015.1062053 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=80512 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
059-2016031	RAB	Revue	Centre de documentation	En réserve L003	Disponible