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Lookup NU author(s): Charalampos Ntigkakis, Dr Stephen Birkinshaw, Dr Ross Stirling, Dr Brian Thomas
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
Groundwater flooding within the urban infrastructure can play a major role in determining theresilience of urban environments. Urban groundwater models can be used to simulate thecomplex interactions between surface water and groundwater within the urban system and canbe developed to jointly account for groundwater-surface water processes and subsurfacecharacterization. They can be used to simulate potential groundwater flooding and helpunderstand the role of groundwater in urban resilience to climate change. However, urbangroundwater is a component of the wider urban water system that has traditionally beenoverlooked, and the complex interactions between surface water and groundwater may obscuredby urban infrastructure and its influence on groundwater flow. Furthermore, the subsurfacecharacterisation is an integral part of any groundwater model, however it’s influence on modelperformance is not yet fully understood. Therefore, the inherent complexities of the urbanenvironment, combined with the scarcity of appropriate groundwater and subsurface data, canlead to increased model uncertainty. It is argued that robust urban groundwater modellingdepends on a strong conceptual understanding of the groundwater system, and constraining theuncertainty in the subsurface characterisation.This project aims to assess model sensitivity to the geological interpretation in simulatinggroundwater dynamics that represent regions of groundwater flooding. It accounts for uncertaintyin the subsurface information to develop an ensemble of different geological interpretations andevaluate the influence of the subsurface characterisation on groundwater flow modelperformance, within the Ouseburn watershed in the greater Newcastle upon Tyne area.
Author(s): Ntigkakis C, Birkinshaw S, Stirling R, Thomas B
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: EGU General Assembly 2024
Year of Conference: 2024
Pages: EGU24-8391
Online publication date: 08/03/2024
Acceptance date: 07/03/2024
Date deposited: 22/05/2024
URL: https://doi.org/10.5194/egusphere-egu24-8391
DOI: 10.5194/egusphere-egu24-8391
