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A risk-based network analysis of distributed in-stream leaky barriers for flood risk management

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A risk-based network analysis of distributed in-stream leaky barriers for flood risk management. / Hankin, Barry; hewitt, ian; Sander, Graham et al.

In: Natural Hazards and Earth System Sciences, Vol. 20, No. 10, 01.10.2020, p. 2567–2584.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Hankin, B, hewitt, I, Sander, G, Danieli, F, Formetta, G, Kamilova, A, Kretzschmar, A, Kiradjiev, K, Wong, C, Pegler, S & Lamb, R 2020, 'A risk-based network analysis of distributed in-stream leaky barriers for flood risk management', Natural Hazards and Earth System Sciences, vol. 20, no. 10, pp. 2567–2584. https://doi.org/10.5194/nhess-20-2567-2020

APA

Hankin, B., hewitt, I., Sander, G., Danieli, F., Formetta, G., Kamilova, A., Kretzschmar, A., Kiradjiev, K., Wong, C., Pegler, S., & Lamb, R. (2020). A risk-based network analysis of distributed in-stream leaky barriers for flood risk management. Natural Hazards and Earth System Sciences, 20(10), 2567–2584. https://doi.org/10.5194/nhess-20-2567-2020

Vancouver

Hankin B, hewitt I, Sander G, Danieli F, Formetta G, Kamilova A et al. A risk-based network analysis of distributed in-stream leaky barriers for flood risk management. Natural Hazards and Earth System Sciences. 2020 Oct 1;20(10):2567–2584. doi: 10.5194/nhess-20-2567-2020

Author

Hankin, Barry ; hewitt, ian ; Sander, Graham et al. / A risk-based network analysis of distributed in-stream leaky barriers for flood risk management. In: Natural Hazards and Earth System Sciences. 2020 ; Vol. 20, No. 10. pp. 2567–2584.

Bibtex

@article{6272a29703b94d138ffac334118b6816,
title = "A risk-based network analysis of distributed in-stream leaky barriers for flood risk management",
abstract = "We develop a network-based model of a catchment basin that incorporates the possibility of small-scale, in-channel, leaky barriers as flood attenuation features, on each of the edges of the network. The model can be used to understand effective risk reduction strategies considering the whole-system performance; here we focus on identifying network dam placements promoting effective dynamic utilisation of storage and placements that also reduce risk of breach or cascade failure of dams during high flows. We first demonstrate the model using idealised networks and explore risk of cascade failure using probabilistic barrier-fragility assumptions. The investigation highlights the need for robust design of nature-based measures, to avoid inadvertent exposure of communities to a flood risk, and we conclude that the principle of building the leaky barriers on the upstream tributaries is generally less risky than building on the main trunk, although this may depend on the network structure specific to the catchment under study. The efficient scheme permits rapid assessment of the whole-system performance of dams placed in different locations in real networks, demonstrated in application to a real system of leaky barriers built in Penny Gill, a stream in the West Cumbria region of Britain.",
author = "Barry Hankin and ian hewitt and Graham Sander and Federico Danieli and Giuseppe Formetta and Alissa Kamilova and Ann Kretzschmar and Kros Kiradjiev and Clint Wong and Sam Pegler and Rob Lamb",
year = "2020",
month = oct,
day = "1",
doi = "10.5194/nhess-20-2567-2020",
language = "English",
volume = "20",
pages = "2567–2584",
journal = "Natural Hazards and Earth System Sciences",
issn = "1561-8633",
publisher = "Copernicus Gesellschaft mbH",
number = "10",

}

RIS

TY - JOUR

T1 - A risk-based network analysis of distributed in-stream leaky barriers for flood risk management

AU - Hankin, Barry

AU - hewitt, ian

AU - Sander, Graham

AU - Danieli, Federico

AU - Formetta, Giuseppe

AU - Kamilova, Alissa

AU - Kretzschmar, Ann

AU - Kiradjiev, Kros

AU - Wong, Clint

AU - Pegler, Sam

AU - Lamb, Rob

PY - 2020/10/1

Y1 - 2020/10/1

N2 - We develop a network-based model of a catchment basin that incorporates the possibility of small-scale, in-channel, leaky barriers as flood attenuation features, on each of the edges of the network. The model can be used to understand effective risk reduction strategies considering the whole-system performance; here we focus on identifying network dam placements promoting effective dynamic utilisation of storage and placements that also reduce risk of breach or cascade failure of dams during high flows. We first demonstrate the model using idealised networks and explore risk of cascade failure using probabilistic barrier-fragility assumptions. The investigation highlights the need for robust design of nature-based measures, to avoid inadvertent exposure of communities to a flood risk, and we conclude that the principle of building the leaky barriers on the upstream tributaries is generally less risky than building on the main trunk, although this may depend on the network structure specific to the catchment under study. The efficient scheme permits rapid assessment of the whole-system performance of dams placed in different locations in real networks, demonstrated in application to a real system of leaky barriers built in Penny Gill, a stream in the West Cumbria region of Britain.

AB - We develop a network-based model of a catchment basin that incorporates the possibility of small-scale, in-channel, leaky barriers as flood attenuation features, on each of the edges of the network. The model can be used to understand effective risk reduction strategies considering the whole-system performance; here we focus on identifying network dam placements promoting effective dynamic utilisation of storage and placements that also reduce risk of breach or cascade failure of dams during high flows. We first demonstrate the model using idealised networks and explore risk of cascade failure using probabilistic barrier-fragility assumptions. The investigation highlights the need for robust design of nature-based measures, to avoid inadvertent exposure of communities to a flood risk, and we conclude that the principle of building the leaky barriers on the upstream tributaries is generally less risky than building on the main trunk, although this may depend on the network structure specific to the catchment under study. The efficient scheme permits rapid assessment of the whole-system performance of dams placed in different locations in real networks, demonstrated in application to a real system of leaky barriers built in Penny Gill, a stream in the West Cumbria region of Britain.

U2 - 10.5194/nhess-20-2567-2020

DO - 10.5194/nhess-20-2567-2020

M3 - Journal article

VL - 20

SP - 2567

EP - 2584

JO - Natural Hazards and Earth System Sciences

JF - Natural Hazards and Earth System Sciences

SN - 1561-8633

IS - 10

ER -