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- W2238462313 abstract "Digital map products and spatial inventories are becoming increasingly available from geological surveys, agricultural, natural resource, environmental, energy, transportation and forestry departments. As well there are now multitudes of specialized digital airborne and satellite image products available. This wide availability of geographically referenced data and the advances in spatial data analysis software are providing geoscientists with new tools and new ways of viewing traditionally used data.Through several examples, this paper will demonstrate how remote sensing and GIS technologies can contribute to environmental assessment of an urban fringe area. Nowhere is the need for spatial inventories and mapping greater than in such areas, where pre-existing information becomes rapidly outdated. A 260-km2 site, north of Metropolitan Toronto was chosen as a study area. A spatial data base was constructed which included imagery from three different satellite sensors, a Digital Terrain Model (DTM), a digital drainage network, and a digital copy of the Ontario Geological Survey's Quaternary geological map.ResumeUn nombre croissant de produits de la cartographie numerique et d'inventaires spatiaux sont offerts par les services de leves geologiques et les ministeres responsables de l'agriculture, des ressources naturelles, de l'environnement, de l'energie, des transports, et des forets. Il existe egalement une multitude de produits numeriques specialises provenant de l'imagerie satellite ou aeroportee. Cette grande disponibilite de donnees a references geographiques et les nouveautes en matiere de logiciel d'analyse des donnees spatiales offrent aux geoscientifiques de nouveaux outils et de nouvelles facons de considerer les donnees habituelles.A l'aide de plusieurs exemples, on demontre dans le present article comment la teledetection et les technologies de SIG peuvent etre utilisees dans l'evaluation environnementale des zones peri-urbaines. Il n'existe pas d'en-droit ou le besoin de donnees d'inventaires spatiaux et de cartographie soit plus pressant que dans ces banlieues, ou l'information existante est sit vite perimee. Une zone d'etude de 260 km2 situee au nord de la zone metropolitainede Toronto a ete choisie. Une banque de donnees spatiales a ete cree, et elle renferme des images provenant de trois detecteurs satellises, un modele numerique de terrain (MNT), un reseau de drainage numerise, et une copie numerique de la carte geologique des depots de Quaternaire de la Commission Geologique de l'Ontario." @default.
- W2238462313 created "2016-06-24" @default.
- W2238462313 creator A5089141270 @default.
- W2238462313 date "1996-03-03" @default.
- W2238462313 modified "2023-09-26" @default.
- W2238462313 title "Geographic Information Systems and Remote Sensing Techniques in Environmental Assessment" @default.
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