Risk assessment for areas prone to flooding and subsidence: a case study from Bergen, Western Norway

Guri Venvik, Ane Bang-Kittilsen, Floris Boogaard

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Bergen city centre is prone to both subsidence and flooding. With a predicted increase in precipitation due to climate change, a higher proportion of rainfall becomes surface runoff, which results in increased peak flood discharges. In addition, it has been predicted that sea-level rise and increasing storm surges will result in coastal flooding. In this study, the dual hazards of flooding and subsidence are analysed to exemplify possible risk assessment maps for areas most prone to the combination of both. Risk assessment maps are a support tool to identify areas where mitigation of subsidence and adaptation for surface water management will be most efficient and measures can be implemented. The results show that dual hazard assessment, like that described in this paper, can be a useful tool for decision-makers when prioritizing areas to implement measures such as Sustainable Urban Drainage Systems.
Original languageEnglish
JournalHydrology research
Publication statusPublished - 1 Jan 2020

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risk assessment
subsidence
flooding
urban drainage
storm surge
hazard assessment
mitigation
hazard
runoff
rainfall
climate change
decision
drainage system
city centre
surface water management
sea level rise

Keywords

  • flooding
  • water management

Cite this

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title = "Risk assessment for areas prone to flooding and subsidence: a case study from Bergen, Western Norway",
abstract = "Bergen city centre is prone to both subsidence and flooding. With a predicted increase in precipitation due to climate change, a higher proportion of rainfall becomes surface runoff, which results in increased peak flood discharges. In addition, it has been predicted that sea-level rise and increasing storm surges will result in coastal flooding. In this study, the dual hazards of flooding and subsidence are analysed to exemplify possible risk assessment maps for areas most prone to the combination of both. Risk assessment maps are a support tool to identify areas where mitigation of subsidence and adaptation for surface water management will be most efficient and measures can be implemented. The results show that dual hazard assessment, like that described in this paper, can be a useful tool for decision-makers when prioritizing areas to implement measures such as Sustainable Urban Drainage Systems.",
keywords = "flooding, water management, watermanagement",
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Risk assessment for areas prone to flooding and subsidence : a case study from Bergen, Western Norway. / Venvik, Guri; Bang-Kittilsen, Ane; Boogaard, Floris.

In: Hydrology research, 01.01.2020.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Risk assessment for areas prone to flooding and subsidence

T2 - a case study from Bergen, Western Norway

AU - Venvik, Guri

AU - Bang-Kittilsen, Ane

AU - Boogaard, Floris

PY - 2020/1/1

Y1 - 2020/1/1

N2 - Bergen city centre is prone to both subsidence and flooding. With a predicted increase in precipitation due to climate change, a higher proportion of rainfall becomes surface runoff, which results in increased peak flood discharges. In addition, it has been predicted that sea-level rise and increasing storm surges will result in coastal flooding. In this study, the dual hazards of flooding and subsidence are analysed to exemplify possible risk assessment maps for areas most prone to the combination of both. Risk assessment maps are a support tool to identify areas where mitigation of subsidence and adaptation for surface water management will be most efficient and measures can be implemented. The results show that dual hazard assessment, like that described in this paper, can be a useful tool for decision-makers when prioritizing areas to implement measures such as Sustainable Urban Drainage Systems.

AB - Bergen city centre is prone to both subsidence and flooding. With a predicted increase in precipitation due to climate change, a higher proportion of rainfall becomes surface runoff, which results in increased peak flood discharges. In addition, it has been predicted that sea-level rise and increasing storm surges will result in coastal flooding. In this study, the dual hazards of flooding and subsidence are analysed to exemplify possible risk assessment maps for areas most prone to the combination of both. Risk assessment maps are a support tool to identify areas where mitigation of subsidence and adaptation for surface water management will be most efficient and measures can be implemented. The results show that dual hazard assessment, like that described in this paper, can be a useful tool for decision-makers when prioritizing areas to implement measures such as Sustainable Urban Drainage Systems.

KW - flooding

KW - water management

KW - watermanagement

M3 - Article

JO - Hydrology research

JF - Hydrology research

SN - 1998-9563

ER -