Identification

Title

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

Alternative title(s)

Flood Zone Depth Grid Dataset 2004

Abstract

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 SJ. 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.

Resource type

dataset

Resource locator

https://environment.data.gov.uk/datafiles/7c7027789d9a41c88a2add0ff43071c9

protocol: WWW:LINK-1.0-http--link

name: Modelled_fluvial_flood_depth_data_created_2004:_1__percent_annual_chance_for_grid_reference_SJ_file_download

description: Modelled fluvial flood depth data created 2004: 1 percent annual chance for grid reference SJ file download

https://support.environment.data.gov.uk/hc/en-gb

protocol: http:

name: DSP_CUSTOMER_FORUM

description: DEFRA Data Services Platform Customer Forum

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

OpenData

EAbatch2

Keyword set

keyword value

risk assessment

flood

flooding

originating controlled vocabulary

title

GEMET - Concepts, version 2.4

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

Extent

Extent group

authority code

code identifying the extent

http://data.ordnancesurvey.co.uk/doc/country/england

Temporal reference

Temporal extent

Begin position

2004

End position

2004

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 (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.

Responsible organisations

Responsible party

organisation name

Environment Agency

email address

DSPcustomerforum@environment-agency.gov.uk

web address

https://support.environment.data.gov.uk/hc/en-gb

description: Defra Data Services Forum

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact

organisation name

Environment Agency

email address

metadata@environment-agency.gov.uk

responsible party role

pointOfContact

Metadata date

2021-01-14

Metadata language

eng