Global and low-cost topographic data to support flood studies

Kun Yan; Jeffrey C. Neal; Dimitri P. Solomatine; Giuliano Di Baldassarre

doi:10.1016/B978-0-12-819101-9.00010-8

Global and low-cost topographic data to support flood studies

Kun Yan, Jeffrey C. Neal, Dimitri P. Solomatine, Giuliano Di Baldassarre

Water Resources

Research output: Chapter in Book/Conference proceedings/Edited volume › Chapter › Scientific › peer-review

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Abstract

This chapter provides an overview of global and low-cost topographic data to support flood studies, with a focus on usefulness of shuttle radar topography mission (SRTM) topography in supporting two-dimensional hydraulic modeling of floods. In particular, flood propagation and inundation modeling of a 10-km reach of the River Dee (United Kingdom) was performed by using LISFLOOD-FP to simulate the December 2006 flood event. Flood extent maps from satellite imagery (ERS-2 Synthetic Aperture Radar SAR) and hydrometric information (downstream water levels) were used as evaluation data. Uncertainty analysis was carried out within the generalized likelihood uncertainty estimation framework using the roughness coefficients and downstream water surface slope as free parameters. The results of this study showed: (1) the potentials and limitations of SRTM topographic data in flood inundation modeling; (2) the value of downstream water levels in constraining uncertainty in hydraulic model of floods; and (3) the impact of setting a water surface slope as downstream boundary on the results of the hydraulic model (e.g., predictions of water stages and flood extent).

Original language	English
Title of host publication	Hydro-Meteorological Hazards, Risks, and Disasters
Editors	John F. Shroder, Giuliano Di Baldassarre, Paolo Paron
Publisher	Elsevier
Chapter	3
Pages	85-102
Number of pages	18
Edition	2
ISBN (Electronic)	9780128191019
DOIs	https://doi.org/10.1016/B978-0-12-819101-9.00010-8
Publication status	Published - 2023

Publication series

Name	Hazards and Disasters Series
Publisher	Elsevier
Volume	5

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

Flood inundation
GLUE
SAR
SRTM
Uncertianty estimation

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10.1016/B978-0-12-819101-9.00010-8

Global and low-cost topographic data to support flood studiesFinal published version, 1.32 MB

Cite this

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title = "Global and low-cost topographic data to support flood studies",

abstract = "This chapter provides an overview of global and low-cost topographic data to support flood studies, with a focus on usefulness of shuttle radar topography mission (SRTM) topography in supporting two-dimensional hydraulic modeling of floods. In particular, flood propagation and inundation modeling of a 10-km reach of the River Dee (United Kingdom) was performed by using LISFLOOD-FP to simulate the December 2006 flood event. Flood extent maps from satellite imagery (ERS-2 Synthetic Aperture Radar SAR) and hydrometric information (downstream water levels) were used as evaluation data. Uncertainty analysis was carried out within the generalized likelihood uncertainty estimation framework using the roughness coefficients and downstream water surface slope as free parameters. The results of this study showed: (1) the potentials and limitations of SRTM topographic data in flood inundation modeling; (2) the value of downstream water levels in constraining uncertainty in hydraulic model of floods; and (3) the impact of setting a water surface slope as downstream boundary on the results of the hydraulic model (e.g., predictions of water stages and flood extent).",

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Global and low-cost topographic data to support flood studies. / Yan, Kun; Neal, Jeffrey C.; Solomatine, Dimitri P. et al.
Hydro-Meteorological Hazards, Risks, and Disasters. ed. / John F. Shroder; Giuliano Di Baldassarre; Paolo Paron. 2. ed. Elsevier, 2023. p. 85-102 (Hazards and Disasters Series; Vol. 5).

Research output: Chapter in Book/Conference proceedings/Edited volume › Chapter › Scientific › peer-review

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PY - 2023

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Global and low-cost topographic data to support flood studies

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Keywords

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