Identification

Title

Modelled fluvial flood depth and climate change depth difference data created 2004: 1 percent annual chance for grid reference SE

Alternative title(s)

Abstract

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 SE. 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.

Resource type

dataset

Resource locator

https://environment.data.gov.uk/api/file/download?fileDataSetId=e411e8a3-6147-4b00-924d-a539e21fee91&fileName=SE_Fluvial_Flood_Depth_Data_cc_Difference_Data_1percent.zip

protocol: http

name: SE_Fluvial_Flood_Depth_Data_cc_Difference_Data_1percent.zip

description: SE_Fluvial_Flood_Depth_Data_cc_Difference_Data_1percent.zip download on Defra Data Services Platform

Unique resource identifier

code

e0c64fdb-2502-4efd-b98b-243f70d8e53e

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

http://www.opengis.net/def/crs/EPSG/0/27700

Classification of spatial data and services

Topic category

environment

Keywords

Keyword set

keyword value

environment

Keyword set

keyword value

flood

originating controlled vocabulary

title

reference date

date type

publication

effective date

2010-01-13

Keyword set

keyword value

flooding

originating controlled vocabulary

title

reference date

date type

publication

effective date

2010-01-13

Keyword set

keyword value

risk assessment

originating controlled vocabulary

title

reference date

date type

publication

effective date

2010-01-13

Geographic location

West bounding longitude

-6.236

East bounding longitude

2.072

North bounding latitude

55.816

South bounding latitude

49.943

Temporal reference

Temporal extent

Begin position

2004-01-01

End position

2004-01-01

Dataset reference date

date type

creation

effective date

2004-01-01

Frequency of update

notPlanned

Quality and validity

Lineage

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.

Conformity

Data format

name of format

Proprietary format | ESRI Grid

version of format

Not Applicable

Constraints related to access and use

Constraint set

Use constraints

Open Government Licence

Constraint set

Limitations on public access

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

Constraint set

Use constraints

Constraint set

Limitations on public access

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

Responsible organisations

Responsible party

organisation name

Environment Agency

email address

DSPcustomerforum@environment-agency.gov.uk

web address

https://environment.data.gov.uk/support

description: Defra Data Services Forum

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact

organisation name

Environment Agency

email address

DSPcustomerforum@environment-agency.gov.uk

responsible party role

pointOfContact

Metadata date

2024-01-05

Metadata language