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Flood-plain mapping :
Flood-plain mapping : a critical discussion of deterministic and probabilistic approaches
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Di Baldassarre, Giuliano (author)
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Schumann, Guy (author)
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Bates, Paul D. (author)
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Freer, Jim E. (author)
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- Beven, Keith J. (author)
- Uppsala universitet,Luft-, vatten- och landskapslära
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(creator_code:org_t)
- 2010-04-23
- 2010
- English.
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In: Hydrological Sciences Journal. - : Informa UK Limited. - 0262-6667 .- 2150-3435. ; 55:3, s. 364-376
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Different methodologies for flood-plain mapping are analysed and discussed by comparing deterministic and probabilistic approaches using hydrodynamic numerical solutions. In order to facilitate the critical discussion, state-of-art techniques in the field of flood inundation modelling are applied to a specific test site (River Dee, UK). Specifically, different flood-plain maps are derived for this test site. A first map is built by applying an advanced deterministic approach: use of a fully two-dimensional finite element model (TELEMAC-2D), calibrated against a historical flood extent, to derive a 1-in-100 year flood inundation map. A second map is derived by using a probabilistic approach: use of a simple raster-based inundation model (LISFLOOD-FP) to derive an uncertain flood extent map predicting the 1-in-100 year event conditioned on the extent of the 2006 flood. The flood-plain maps are then compared and the advantages and disadvantages of the two different approaches are critically discussed.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
Keyword
- flood-plain mapping
- hydraulic models
- flood hazard
- uncertainty analysis
- Earth sciences
- Geovetenskap
Publication and Content Type
- ref (subject category)
- art (subject category)
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