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A spatiotemporal data model for river basin-scale hydrologic systems / J.L. Goodall in International journal of geographical information science IJGIS, vol 23 n° 1-2 (january 2009)  

Public [article]  inInternational journal of geographical information science IJGIS > vol 23 n° 1-2 (january 2009) . - pp 233 - 247 Titre : A spatiotemporal data model for river basin-scale hydrologic systems Type de document : Article/Communication Auteurs : J.L. Goodall, Auteur ; D. Maidment, Auteur Année de publication : 2009 Article en page(s) : pp 233 - 247 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications SIG [Termes IGN] bassin hydrographique [Termes IGN] information géographique [Termes IGN] intégration de données [Termes IGN] modèle hydrographique [Termes IGN] modélisation spatio-temporelle [Termes IGN] réseau hydrographique [Termes IGN] système d'information géographique Résumé : (Auteur) Despite a long history of synergy, current techniques for integrating Geographic Information System (GIS) software with hydrologic simulation models do not fully utilize the potential of GIS for modeling hydrologic systems. Part of the reason for this is a lack of GIS data models appropriate for representing fluid flow in space and time. Here we address this challenge by proposing a spatiotemporal data model designed specifically for large-scale river basin systems. The data model builds from core concepts in geographic information science and extends these concepts to accommodate mathematical representations of fluid flow at a regional scale. Space-time is abstracted into three basic objects relevant to hydrologic systems: a control volume, a flux and a flux coupler. A control volume is capable of storing mass, energy or momentum through time, a flux represents the movement of these quantities within space-time and a flux coupler insures conservation of the quantities within an overall system. To demonstrate the data model, a simple case study is presented to show how the data model could be applied to digitally represent a river basin system. Copyright Taylor & Francis Numéro de notice : A2009-135 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810802032193 En ligne : https://doi.org/10.1080/13658810802032193 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29765 [article]

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