Modelled fluvial flood depth data created 2004: 0.1 percent annual chance for grid reference TQ

This modelled fluvial flood depth data was created for the 0.1% annual chance of flooding situations and was produced as a by-product from the 2004 generalised modelling project. The purpose of the generalised modelling project was to fill the gaps where there was no detailed local modelled data in 2004, in order to define the extents of Flood Zones for spatial planning. A two-dimensional hydrodynamic model called JFlow was used to produce this modelled fluvial flood depth data on a 5x5m grid. Since 2004, local detailed modelling has been used to replace this generalised modelling in many areas to define the extents of Flood Zones. However this depth dataset has not been updated. INFORMATION WARNING: This data is not suitable for identifying whether an individual property will flood, for detailed decision making or for use in site specific Flood Risk or Strategic Flood Risk Assessments. Where this data is used for anything other than broad catchment or Shoreline Management Plan scale further evidence, verification and studies should be undertaken. More recent, accurate and local detailed modelling depth data is available for many places. Please contact your local Environment Agency office to see if detailed modelling is available for your area of interest. This metadata record is for Approval for Access product AfA238 Flood Zone Depth Grid Dataset 2004 Modelled fluvial flood depth data are available for the whole of England, however this data is for the 100x100km squared Ordnance Survey National Grid reference TQ. If you are interested in data for another grid reference refer to the Ordnance Survey National Grid document linked below to find the relevant referencing code and search on Data.gov.uk again to download the data. https://www.ordnancesurvey.co.uk/docs/support/national-grid.pdf Attribution statement: © Environment Agency copyright and/or database right 2016. All rights reserved. Some features of this information are based on digital spatial data licensed from the Centre for Ecology & Hydrology © NERC (CEH). Defra, Met Office and DARD Rivers Agency © Crown Copyright. © Cranfield University. © James Hutton Institute. Contains OS data © Crown copyright and database right 2015. Land & Property Services © Crown copyright and database right.本次建模得到的河流洪水深度数据，针对年泛滥概率0.1%的情景生成，是2004年广义建模项目的副产品。该广义建模项目的初衷，是填补2004年当地尚无详细本地化建模数据的空白，以明确洪水风险区（Flood Zones）范围，服务空间规划工作。 本次河流洪水深度数据采用名为JFlow的二维水动力模型，在5米×5米的网格上生成。 自2004年起，诸多地区已采用本地化详细建模替代本广义建模方法来划定洪水风险区范围，但该洪水深度数据集至今未进行更新。 信息警示：本数据集不适用于识别单宗物业是否会遭受洪涝、开展精细化决策，或用于特定场地洪水风险评估或战略洪水风险评估（Strategic Flood Risk Assessments）。若将本数据集用于流域或岸线管理计划（Shoreline Management Plan）尺度以外的场景，则需开展额外的佐证、验证与研究工作。 目前诸多地区已拥有更新、精准的本地化建模洪水深度数据，您可联系当地环境署（Environment Agency）办事处，查询目标区域是否有相关详细建模数据可用。 本元数据记录对应权限获批产品AfA238《2004年洪水风险区网格深度数据集》。 全英格兰范围内均可获取建模河流洪水深度数据，但本数据集仅对应英国地形测量局（Ordnance Survey）国家网格参考编号TQ下的100km×100km区域。若您需要其他网格参考编号对应的数据集，请参考下文链接的《英国地形测量局国家网格指南》获取对应参考编码，随后前往Data.gov.uk平台重新检索下载数据。https://www.ordnancesurvey.co.uk/docs/support/national-grid.pdf 版权声明：© 英国环境署（Environment Agency）2016年版权及数据库权益保留，所有权利受保护。本数据集部分内容基于英国生态与水文中心（Centre for Ecology & Hydrology, CEH）© 自然环境研究委员会（NERC）授权的数字空间数据制作。英国环境、食品与农村事务部（Defra）、英国气象局（Met Office）以及北爱尔兰农业、环境与乡村事务部河流局（DARD Rivers Agency）© 皇家版权。© 克兰菲尔德大学。© 詹姆斯·赫顿研究所。本数据集包含英国地形测量局（OS）数据，© 皇家版权及数据库权益2015年保留。土地与房产服务部门 © 皇家版权及数据库权益保留。