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Exploring the Potential of SRTM Topography and Radar Altimetry to Support Flood Propagation Modeling: Danube Case Study
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2015 (English)In: Journal of hydrologic engineering, ISSN 1084-0699, Vol. 20, no 2Article in journal (Refereed) Published
Abstract [en]

Flood inundation modeling is one of the essential steps in flood hazard mapping. However, the desirable input and calibration data for model building and evaluation are not sufficient or unavailable in many rivers and floodplains of the world. A potential opportunity to fill this gap is offered nowadays by global earth observation data, which can be obtained freely (or at low cost), such as the shuttle radar topography mission (SRTM) and radar altimetry. However, the actual usefulness of these data is still poorly investigated. This study attempts to assess the value of SRTM topography and radar altimetry in supporting flood-level predictions in data-poor areas. To this end, a hydraulic model of a 150-km reach of the Danube River was built by using SRTM topography as input data and radar altimetry of the 2006 flood event as calibration data. The model was then used to simulate the 2007 flood event and evaluated against water levels measured in four stream gauge stations. Model evaluation allows the investigation of the usefulness and limitations of SRTM topography and radar altimetry in supporting hydraulic modeling of floods. (C) 2014 American Society of Civil Engineers.

Place, publisher, year, edition, pages
2015. Vol. 20, no 2
Keyword [en]
Flood inundation modeling, Shuttle radar topography mission (SRTM) topography, Radar altimetry, Model evaluation
National Category
Other Earth and Related Environmental Sciences
URN: urn:nbn:se:uu:diva-246353DOI: 10.1061/(ASCE)HE.1943-5584.0001018ISI: 000348034000014OAI: oai:DiVA.org:uu-246353DiVA: diva2:793993
Available from: 2015-03-10 Created: 2015-03-05 Last updated: 2016-04-13Bibliographically approved

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Di Baldassarre, Giuliano
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