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Comparing 2D capabilities of HEC-RAS and LISFLOOD-FP on complex topography

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Comparing 2D capabilities of HEC-RAS and LISFLOOD-FP on complex topography. / Shustikova, Iuliia; Domeneghetti, Alessio; Neal, Jeffrey; Bates, Paul; Castellarin, Attilio.

In: Hydrological Sciences Journal, 18.07.2019.

Research output: Contribution to journalArticle

Harvard

Shustikova, I, Domeneghetti, A, Neal, J, Bates, P & Castellarin, A 2019, 'Comparing 2D capabilities of HEC-RAS and LISFLOOD-FP on complex topography', Hydrological Sciences Journal.

APA

Shustikova, I., Domeneghetti, A., Neal, J., Bates, P., & Castellarin, A. (Accepted/In press). Comparing 2D capabilities of HEC-RAS and LISFLOOD-FP on complex topography. Hydrological Sciences Journal.

Vancouver

Shustikova I, Domeneghetti A, Neal J, Bates P, Castellarin A. Comparing 2D capabilities of HEC-RAS and LISFLOOD-FP on complex topography. Hydrological Sciences Journal. 2019 Jul 18.

Author

Shustikova, Iuliia ; Domeneghetti, Alessio ; Neal, Jeffrey ; Bates, Paul ; Castellarin, Attilio. / Comparing 2D capabilities of HEC-RAS and LISFLOOD-FP on complex topography. In: Hydrological Sciences Journal. 2019.

Bibtex

@article{3d412ec5d8d1481693a1d3a547214fe6,
title = "Comparing 2D capabilities of HEC-RAS and LISFLOOD-FP on complex topography",
abstract = "This study evaluates and compares two-dimensional (2D) numerical models of different complexity by testing them on a floodplain inundation event that occurred on the Secchia River (Italy). We test 2D capabilities of LISFLOOD-FP and HEC-RAS (5.0.3); implemented using various grid size (25-100m) based on 1m DEM resolution. As expected, best results were shown by the higher resolution grids of 25m for both models, which is justified by the complex terrain of the area. However, the coarser resolution simulations (50 and 100m) performed virtually identical compared to high-resolution simulations. Nevertheless, spatial distribution of flood characteristics varies; the 50 and 100m results of LISFLOOD-FP and HEC -RAS misestimated flood extent and water depth in selected control areas (built-up zones). We suggest that the specific terrain of the area can cause ambiguities in large-scale modelling, while providing plausible results in terms of the overall performance.",
keywords = "DEM resolution, two -dimensional models, hydraulic modelling, Floodplain inundation",
author = "Iuliia Shustikova and Alessio Domeneghetti and Jeffrey Neal and Paul Bates and Attilio Castellarin",
year = "2019",
month = "7",
day = "18",
language = "English",
journal = "Hydrological Sciences Journal",
issn = "0262-6667",
publisher = "Taylor & Francis Group",

}

RIS - suitable for import to EndNote

TY - JOUR

T1 - Comparing 2D capabilities of HEC-RAS and LISFLOOD-FP on complex topography

AU - Shustikova, Iuliia

AU - Domeneghetti, Alessio

AU - Neal, Jeffrey

AU - Bates, Paul

AU - Castellarin, Attilio

PY - 2019/7/18

Y1 - 2019/7/18

N2 - This study evaluates and compares two-dimensional (2D) numerical models of different complexity by testing them on a floodplain inundation event that occurred on the Secchia River (Italy). We test 2D capabilities of LISFLOOD-FP and HEC-RAS (5.0.3); implemented using various grid size (25-100m) based on 1m DEM resolution. As expected, best results were shown by the higher resolution grids of 25m for both models, which is justified by the complex terrain of the area. However, the coarser resolution simulations (50 and 100m) performed virtually identical compared to high-resolution simulations. Nevertheless, spatial distribution of flood characteristics varies; the 50 and 100m results of LISFLOOD-FP and HEC -RAS misestimated flood extent and water depth in selected control areas (built-up zones). We suggest that the specific terrain of the area can cause ambiguities in large-scale modelling, while providing plausible results in terms of the overall performance.

AB - This study evaluates and compares two-dimensional (2D) numerical models of different complexity by testing them on a floodplain inundation event that occurred on the Secchia River (Italy). We test 2D capabilities of LISFLOOD-FP and HEC-RAS (5.0.3); implemented using various grid size (25-100m) based on 1m DEM resolution. As expected, best results were shown by the higher resolution grids of 25m for both models, which is justified by the complex terrain of the area. However, the coarser resolution simulations (50 and 100m) performed virtually identical compared to high-resolution simulations. Nevertheless, spatial distribution of flood characteristics varies; the 50 and 100m results of LISFLOOD-FP and HEC -RAS misestimated flood extent and water depth in selected control areas (built-up zones). We suggest that the specific terrain of the area can cause ambiguities in large-scale modelling, while providing plausible results in terms of the overall performance.

KW - DEM resolution

KW - two -dimensional models

KW - hydraulic modelling

KW - Floodplain inundation

M3 - Article

JO - Hydrological Sciences Journal

JF - Hydrological Sciences Journal

SN - 0262-6667

ER -