e503cf32-7841-4f77-9ac5-542134354da4
eng
utf8
dataset
Environment Agency
data.info@environment-agency.gov.uk
pointOfContact
2018-07-24
Gemini
2.2
http://www.opengis.net/def/crs/EPSG/0/27700
Modelled fluvial flood depth and climate change depth difference data created 2004: 1 percent annual chance for grid reference TG
2004 Climate Change 1 in 100 Fluvial Depth Grid Climate Change Difference
2004-01-01
creation
e0c64fdb-2502-4efd-b98b-243f70d8e53e
The depth difference dataset (2004) is a depth grid showing the difference between modelled fluvial flood depths and modelled fluvial flood depths under climate change conditions (an increase in peak flows of 20%).
Modelled fluvial flood depth and climate change depth difference data* was created for both 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 both the modelled fluvial flood depth and modelled fluvial flood depth with climate change data. This depth difference data, using these 2 datasets, is provided on a 5x5m grid.
Since 2004, some local detailed modelling projects have included scenarios for climate change however this depth difference 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 1 in 100 Fluvial Depth Grid Climate Change Difference
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. 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.
Environment Agency
data.info@environment-agency.gov.uk
https://www.gov.uk/government/organisations/environment-agency
Environment Agency Website
pointOfContact
notPlanned
OpenData
EAbatch2
theme
flood
flooding
risk assessment
theme
GEMET - Concepts, version 2.4
2010-01-13
publication
geonetwork.thesaurus.external.theme.gemet
Open Government Licence
otherRestrictions
license
copyright
There are no public access constraints to this data. Use of this data is subject to the licence identified.
vector
eng
utf8
environment
true
-6.236
2.072
49.943
55.816
true
http://data.ordnancesurvey.co.uk/doc/country/england
2004-01-01
2004-01-01
Proprietary format | ESRI Grid
Not Applicable
https://ea.sharefile.com/d-s630c36bf3064a47b
dataset
National generalised modelling for fluvial flood depth data with and without 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.