Investigating Added Value of Improved DEM, River Geometry and Model Parameter Definitions on Flood Inundation Mapping

Najar M., GÜL A.

Conference on Remote Sensing for Agriculture, Ecosystems, and Hydrology XXI held at SPIE Remote Sensing, Strasbourg, France, 9 - 11 September 2019, vol.11149 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 11149
  • Doi Number: 10.1117/12.2532745
  • City: Strasbourg
  • Country: France
  • Keywords: Floodplain modelling, HEC-RAS, DEM resolution, Iyidere river, Vulnerability, DIGITAL ELEVATION MODELS, ACCURACY, IMPACT
  • Dokuz Eylül University Affiliated: Yes

Abstract

Digital Elevation Model (DEM) constitutes an essential topographic dataset, which have been used to derive hydrological features forming inputs to various models. Elevation datasets are available from several major sources (remote sensing and land survey-based techniques) and at different spatial resolutions. In particular, the resolution of DEM plays an important role in securing the expected accuracy of flood plain inundation maps as one of the major determinants.