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  3. Modelled fluvial flood depth data with climate change created 2004: 1 percent annual chance for grid reference TG

Modelled fluvial flood depth data with climate change created 2004: 1 percent annual chance for grid reference TG

Summary

This modelled fluvial flood depth data with climate change 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. The purpose of this climate change data was to provide a high-level sensitivity analysis of the possible effects of climate change based on a 20% increase in peak flows in the fluvial modelling. A two-dimensional hydrodynamic model called JFlow was used to produce this modelled fluvial flood depth data on a 5x5m grid. Since 2004, some local detailed modelling projects have included scenarios for climate change however this climate change dataset has not been updated. INFORMATION WARNING: This data is not suitable for identifying whether an individual property will flood due to climate change, for detailed decision making or for use in site specific Flood Risk or Strategic Flood Risk Assessments. Where this data is used further evidence, verification and studies should be undertaken. Climate change allowances have changed since this work was completed in 2004. More recent, accurate and local detailed modelling depth data with climate change is available for some 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 AfA480 2004 Climate Change 1 in 100 Fluvial Flood Depth Grids Modelled fluvial flood depth data with climate change are available for the whole of England, however this data is for the 100x100km squared Ordnance Survey National Grid reference TG. If you are interested in data for another grid reference refer to this Ordnance Survey National Grid document to find the relevant referencing code and search on Data.gov.uk again to download the data.

Categories

Use limitation statement

There are no public access constraints to this data. Use of this data is subject to the licence identified.

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.

Technical information

Update frequency

notPlanned

Lineage

National generalised modelling for fluvial flood depth data with climate change (2004) were generated using JFLOW National 2D Fluvial Model (modelling areas of land between 0.1% and a 1% annual chance of flooding). JFLOW used Intermap NEXTMap Digital Elevation Model and CEH FEH Flood Peak Estimates (Q(T) grids) as model inputs. Model flood depths were output from these models as 5 metre grids. Accuracy of this data has never been verified.

Spatial information

Geographic extent

  • Latitude from: 49.943 to 55.816
  • Longitude from: -6.236 to 2.072
Metadata information

Language

English

Metadata identifier

53ab7ba3-3a55-4821-a809-03f8bd2679db


Published by

Environment Agency

Contact publisher

Defra Data Services Forum

Dataset reference dates

Creation date

01 January 2004

Revision date

N/A

Publication date

N/A

Period

  • From: 01 January 2004
  • To: 01 January 2004

Search

Data and Supporting Information
Data services and download by area of interestLinkAction
Full downloads and supporting documentationFormatAction
TG_Fluvial_Flood_Depth_Data_cc_1percent.zipZIPDownload