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

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 TM. 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.

本数据集所模拟的河流洪水深度数据系为应对0.1%年一遇的洪水事件而创建，并作为2004年广义建模项目的附带产物。广义建模项目的旨在填补2004年局部详细建模数据的空白，以明确洪水区域的范围，服务于空间规划。在此过程中，一种名为JFlow的二维水动力学模型被应用于5x5米网格上生成所模拟的河流洪水深度数据。自2004年以来，局部详细建模已在众多地区取代了广义建模，用以界定洪水区域的范围。然而，本洪水深度数据集尚未得到更新。信息警告：本数据集不适用于判断单个物业是否会遭受洪水侵袭，亦不适宜用于详细决策或特定地点的洪水风险或战略洪水风险评估。若本数据用于除流域或海岸线管理计划尺度之外的其他用途，则应进行进一步证据、验证和研究。对于许多地区，现已可获取更近、更准确且更为详细的局部建模深度数据。如需了解您感兴趣区域的详细建模数据，请联系当地环境局。本元数据记录适用于AfA238洪水区域深度网格数据集2004的访问批准产品。模拟的河流洪水深度数据适用于整个英格兰，但本数据仅针对100x100公里平方的军事测绘国家网格参考TM。如需获取其他网格参考数据，请参考下述军事测绘国家网格文档，查找相关参照代码，并在Data.gov.uk再次搜索以下载数据。https://www.ordnancesurvey.co.uk/docs/support/national-grid.pdf 著作权声明：©环境局版权及/或数据库权利2016。版权所有。本信息中的一些特征基于从生态与水文中心（CEH）许可的数字空间数据。©英国自然资源部（NERC）。©英国环境、食品和乡村事务部、气象办公室和河流管理局。©克兰菲尔德大学。©詹姆斯·哈顿研究所。包含OS数据©英国皇家版权和数据库权利2015。土地与物业服务©英国皇家版权和数据库权利。