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Assessing the accuracy of satellite derived global and national urban maps in Kenya / A.J. Tatem in Remote sensing of environment, vol 96 n° 1 (15/05/2005)
[article]
Titre : Assessing the accuracy of satellite derived global and national urban maps in Kenya Type de document : Article/Communication Auteurs : A.J. Tatem, Auteur ; A.M. Noor, Auteur ; S.I. Hay, Auteur Année de publication : 2005 Article en page(s) : pp 87 - 97 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique
[Termes IGN] aménagement urbain
[Termes IGN] cartographie thématique
[Termes IGN] croissance urbaine
[Termes IGN] estimation de précision
[Termes IGN] image Landsat-ETM+
[Termes IGN] impact social
[Termes IGN] impact sur l'environnement
[Termes IGN] Kenya
[Termes IGN] zone urbaineRésumé : (Auteur) Ninety percent of projected global Urbanization will be concentrated in low income countries. This will have considerable environmental, economic and public health implications for those populations. Objective and efficient methods of delineating urban extent are a cross-sectoral need complicated by a diversity of urban definition rubrics world-wide. Large-area maps of urban extents are becoming increasingly available in the public domain, as are a wide-range of medium spatial resolution satellite imagery. Here we describe the extension of a methodology based on Landsat ETM and Radarsat imagery to the production of a human settlement map of Kenya. This map was then compared with five satellite imagery-derived, global maps of urban extent at Kenya national-level, against an expert opinion coverage for accuracy assessment. The results showed the map produced using medium spatial resolution satellite imagery was of comparable accuracy to the expert opinion coverage. The five global urban maps exhibited a range of inaccuracies, emphasising that care should be taken with use of these maps at national and sub-national scale. Numéro de notice : A2005-211 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.rse.2005.02.001 En ligne : https://doi.org/10.1016/j.rse.2005.02.001 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27348
in Remote sensing of environment > vol 96 n° 1 (15/05/2005) . - pp 87 - 97[article]