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FloodwayGIS : An ArcGIS Visualization Environment to Remodel a Floodway / S. Selvanathan in Transactions in GIS, vol 14 n° 5 (October 2010)  

Public [article]  inTransactions in GIS > vol 14 n° 5 (October 2010) . - pp 671 - 688 Titre : FloodwayGIS : An ArcGIS Visualization Environment to Remodel a Floodway Type de document : Article/Communication Auteurs : S. Selvanathan, Auteur ; R. Dymond, Auteur Année de publication : 2010 Article en page(s) : pp 671 - 688 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications SIG [Termes IGN] ArcGIS [Termes IGN] canal [Termes IGN] crue [Termes IGN] inondation [Termes IGN] logiciel de visualisation [Termes IGN] risque naturel [Termes IGN] Triangulated Irregular Network Résumé : (Auteur) Floodway modeling has been performed extensively using HECRAS in floodplain studies. The model output is typically exported in GIS format and the floodway boundaries are overlaid on other spatial data to further edit or remodel the floodway to meet FEMA and local development requirements. In this article, a tightly coupled system comprised of a commercial GIS (ArcGIS) and HECRAS is presented. FloodwayGIS provides a comprehensive visual environment to edit, remodel, spatially analyze, and map floodway boundaries. The environment uses the HECRAS executable engine for every remodeling iteration. Four different encroachment editing options are provided within FloodwayGIS, which eliminates the need for a modeler to switch between HECRAS and GIS in the floodway modeling process, and results in savings of modeling time. FloodwayGIS also provides a mapping algorithm based on TIN intersection to produce smooth floodway boundaries that can be mapped in Digital Flood Insurance Rate Maps (DFIRMs) with minor editing. Numéro de notice : A2010-498 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/j.1467-9671.2010.01225.x Date de publication en ligne : 23/11/2010 En ligne : https://doi.org/10.1111/j.1467-9671.2010.01225.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30690 [article]