Modelled fluvial flood depth data created 2004: 1 percent annual chance for grid reference NY

This modelled fluvial flood depth data was created for the 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 NY. 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.

本模型化河流洪水深度数据是为应对1%年发生概率的洪水情况而创建，并作为2004年通用建模项目的副产品产出。该通用建模项目的宗旨在于填补2004年无详细地方模型化数据的空白，以便为空间规划界定洪水区域的范围。

二维水动力学模型JFlow被用于在5x5米网格上生成此模型化河流洪水深度数据。

自2004年以来，许多地区已采用地方详细建模来取代该通用建模，以界定洪水区域的范围。然而，该深度数据集尚未更新。

信息警告：此数据不适用于确定单个财产是否会发生洪水，不适用于详细决策，亦不适用于特定地点的洪水风险或战略洪水风险评估。如在此数据之外的其他用途，包括流域或海岸线管理规划等宏观尺度，应进行进一步的证据、验证和研究。

许多地方已提供更近、更准确的地方详细建模深度数据。如需查询您感兴趣区域的详细建模数据，请联系当地环境局办公室。

本元数据记录为批准访问产品AfA238洪水区域深度网格数据集2004。

模型化河流洪水深度数据适用于整个英格兰，但此数据为100x100平方公里平方的奥尔德尼国家网格参考NY。如需其他网格参考数据，请参阅以下链接的奥尔德尼国家网格文档，以找到相关引用代码，并在Data.gov.uk上再次搜索以下载数据。

版权声明：©环境局版权和/或数据库权利2016。保留所有权利。本信息的一些特征基于数字空间数据，该数据经生态与水文学中心（CEH）许可。©英国自然环境研究委员会（NERC）。©环境、食品与农村事务部、气象办公室和DARD河流管理局©皇家版权。©克兰菲尔德大学。©詹姆斯·哈顿研究所。包含OS数据©皇家版权和数据库权利2015。土地与财产服务©皇家版权和数据库权利。