Improving the resilience of hard urban systems via improved flood risk modelling

由洪水风险建模公司Ambiental和地球科学研究组织英国地质调查局组成的财团正在开展一个项目，旨在证明一种新的计算机建模技术，该技术可以更好地代表洪水事件期间地下水（地下水流动）的作用。当地下水位超过地面时，可能会发生洪水，但高水位也会加剧暴雨造成的洪水。洪水也可能发生在城市地区后面的防洪，地下水被迫通过岩石高河流水位。该项目的成功完成将为新的洪水建模框架铺平道路，这将使我们能够澄清这种现象（发生在2013-14年冬季西南部和泰晤士河谷大部分地区的洪水）所面临的风险水平。这有很多好处，包括在规划防洪时有新的见解，在为即将到来的洪水做准备时有更好的准备，以及更好地了解“高敏感性”地区的实际风险水平。

A consortium of flood risk modelling company Ambiental and the geoscience research organisation British Geological Survey are embarking on a project that seeks to prove a new computer modelling technique which better represents the role of groundwater (water flowing underground) during flood events. Flooding can occur when the groundwater table exceeds the ground surface, but a high water table can also exacerbate flooding from heavy rainfall. Flooding can also occur in urban areas behind flood defences where groundwater is forced through the rock by high river levels. Successful completion of this project will pave the way to a new flood modelling framework which will allow us to clarify the level of risk properties are facing from this phenomena (which occurred throughout much of the south-west and Thames valley flooding of winter 2013-14). There are a multitude of benefits, including new insight when planning flood defences, better preparedness when preparing for impending floods and improved knowledge about the actual level of risk in ‘high-susceptibility’ areas.