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.本模拟河道洪水深度数据针对年洪水概率0.1%的情景生成，系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年暂无详细本地模拟数据的空白，以明确洪水区（Flood Zones）范围，服务空间规划工作。 本数据集采用名为JFlow的二维水动力模型，在5×5米网格上生成河道洪水深度模拟数据。 自2004年起，诸多地区已采用本地详细建模替代本广义建模方法以划定洪水区范围，但本洪水深度数据集未进行更新。 信息警示：本数据不适用于识别单宗物业是否受淹、开展精细化决策，或用于特定场地洪水风险评估及战略洪水风险评估。若将本数据用于流域或岸线管理计划尺度以外的场景，需开展额外佐证、验证与研究工作。 诸多地区现已获取更新、精准的本地详细建模洪水深度数据。您可联系当地环境署（Environment Agency）办公室，查询目标区域是否有此类详细建模数据可用。 本元数据记录对应获批访问产品AfA238《2004年洪水区深度网格数据集》。 英格兰全境均可获取河道洪水深度模拟数据，但本数据集对应英国地形测量局国家网格（Ordnance Survey National Grid）参考编号TM下的100×100平方公里区域。若您需要其他网格参考下的数据，请参考下文链接的英国地形测量局国家网格文档，获取对应参考编码后，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 归属声明：© 英国环境署（Environment Agency）版权及数据库权 2016年。保留所有权利。本信息部分内容基于生态与水文学中心（Centre for Ecology & Hydrology, © NERC (CEH)）授权的数字空间数据。Defra、英国气象局（Met Office）及DARD河流局© 王室版权。© 克兰菲尔德大学（Cranfield University）。© 詹姆斯·赫顿研究所（James Hutton Institute）。包含OS数据 © 王室版权及数据库权 2015年。土地与产权服务处 © 王室版权及数据库权。