Metadata detail: Flood Map for Planning Flood Zones 2 and 3

Title

Flood Map for Planning Flood Zones 2 and 3

Abstract

The Flood Map for Planning supports national planning policy TAN15: Development, flooding and coastal erosion. It shows how climate change will affect flood risk extents over the next century and indicates the potential extent of flooding assuming no defences are in place.

It also indicates areas at risk from coastal erosion, areas that have flooded in the past and key information on the location of flood defence infrastructure.

The Flood Map for Planning is used as a screening tool by Local Authorities to understand where further assessment of flooding and coastal erosion may be needed. It also provides useful information to inform site specific flood consequences assessments.

The Flood Zones within the Flood Map for Planning shows the undefended risk of flooding from Rivers, the Sea and from Surface Water & Small Watercourses.

Flood Zone 3 displays the extent of flooding from:

rivers with a 1% (1 in 100) chance or greater of happening in any given year, including an allowance for climate change.
the sea with a 0.5% (1 in 200) chance or greater of happening in any given year, including an allowance for climate change.
Surface water & small watercourses with a 1% (1 in 100) chance or greater of happening in any given year, including an allowance for climate change.

Flood Zone 2 displays the extent of flooding from:

Rivers with less than 1% (1 in 100) but greater than or equal to 0.1% (1 in 1,000) chance of happening in any given year, including an allowance for climate change.
the Sea with less than 0.5% (1 in 200) but greater than or equal to 0.1% (1 in 1,000) chance of flooding in any given year, including an allowance for climate change.
Surface water & small watercourses with less than 1% (1 in 100) but greater than or equal to 0.1% (1 in 1,000) chance of happening in any given year, including an allowance for climate change.

The Flood Map for Planning is displayed in two parts, a Basic View and a Detailed View. In the Basic View the risk of flooding from Rivers and the Sea is shown as a merged layer. In the Detailed View flood risk is separated into individual sources. In both Views Flood Zones for Surface Water & Small Watercourses are shown separately.

Attribution Statement:

Contains Natural Resources Wales information © Natural Resources Wales and database right. All rights reserved. Some features of this information are based on digital spatial data licensed from the UK Centre for Ecology & Hydrology © UKCEH. Defra, Met Office and DARD Rivers Agency © Crown copyright. © Cranfield University. © James Hutton Institute. Contains OS data © Crown copyright and database right.

Licence

Open Government Licence for Public Sector Information (OGL)

You are using an outdated browser that is not supported by GeoNode.

Metadata : Flood Map for Planning Flood Zones 2 and 3

Identification

Information

Features

Contact

References

OWS endpoints