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The role of remote sensing and GIS in enforcement of areas of permanent preservation in the Brazilian Amazon / L.A. Firestone in Geocarto international, vol 17 n° 2 (June - August 2002)  

Public [article]  inGeocarto international > vol 17 n° 2 (June - August 2002) . - pp 51 - 56 Titre : The role of remote sensing and GIS in enforcement of areas of permanent preservation in the Brazilian Amazon Type de document : Article/Communication Auteurs : L.A. Firestone, Auteur ; Cristiano B. Souza, Auteur Année de publication : 2002 Article en page(s) : pp 51 - 56 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] Amazonie [Termes IGN] Brésil [Termes IGN] cartographie thématique [Termes IGN] classification non dirigée [Termes IGN] contrôle par télédétection [Termes IGN] déboisement [Termes IGN] détection de changement [Termes IGN] image Landsat-TM [Termes IGN] occupation du sol [Termes IGN] protection de l'environnement [Termes IGN] surveillance écologique [Termes IGN] sylviculture [Termes IGN] système d'information géographique Résumé : (Auteur) Many studies have used remote sensing to detect forest conversion activities in the Amazon for the purposes of directing policy or generating data for environmental modeling. However, this technology has yet to be applied towards forest law enforcement in the region. In this study we design a violation detection system for Areas of Permanent Preservation using Landsat TM data and GIS, and test it in a logging town in the Eastern Amazon. Our detection methodology generates a simple forest cover map using unsupervised classification techniques, as well as river maps derived directly from remotely sensed data. Data produced through this detection system include a forest cover map, waterway map, map of Areas of Permanent Preservation, and violation map. We include a discussion of the advantages and limitations of each of these data products for law enforcement purposes in the region. Violations were detected in 60% of all Areas of Permanent Preservation in pastures and other cleared properties, showing extremely low law abidance once deforestation occurs. Overall, violation detection resulted in accuracy levels of 88.6%, illustrating the viability of efficiently monitoring land cover for law enforcement purposes in the Amazon. Numéro de notice : A2002-226 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106040208542235 En ligne : https://doi.org/10.1080/10106040208542235 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22140 [article]

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Code-barres	Cote	Support	Localisation	Section	Disponibilité
059-02021	RAB	Revue	Centre de documentation	En réserve L003	Disponible