Date ( Creation )

2006

Identifier

http://data.bgs.ac.uk/id/dataHolding/13603085

Maintenance and update frequency

asNeeded As needed

GEMET - INSPIRE themes

• Geology

BGS Thesaurus of Geosciences

• Water flooding , Groundwater , Floods

Keywords

• NERC_DDC

Access constraints

otherRestrictions Other restrictions

Use constraints

otherRestrictions Other restrictions

Other constraints

The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused.

Other constraints

Either: (i) the dataset is made freely available, e.g. via the Internet, for a restricted category of use (e.g. educational use only); or (ii) the dataset has not been formally approved by BGS for access and use by external clients under licence, but its use may be permitted under alternative formal arrangements; or (iii) the dataset contains 3rd party data or information obtained by BGS under terms and conditions that must be consulted in order to determine the permitted usage of the dataset. Refer to the BGS staff member responsible for the creation of the dataset if further advice is required. He / she should be familiar with the composition of the dataset, particularly with regard to 3rd party IPR contained in it, and any resultant use restrictions. This staff member should revert to the IPR Section (ipr@bgs.ac.uk ) for advice, should the position not be clear.

Spatial representation type

vector Vector

Denominator

10000

Metadata language

English English

Topic category

• Geoscientific information

Geographic identifier

GB

 

Date ( Revision )

2009

Geographic identifier

UK [id=139300]

 

Date ( Creation )

1979

Geographic identifier

UKM

 

Date ( Revision )

2009

N

S

E

W

Supplemental Information

The data are updated when new data become available. GROUNDWATER FLOODING DATABANK VERSION 1. Systematic national coverage with GIS data. Derived from other BGS datasets using a documented methodology. The data can be viewed at a range of scales, no typical scale can be identified.

Reference system identifier

OGP / urn:ogc:def:crs:EPSG::27700

 

Date ( Revision )

2005

Distribution format

• MapInfo GIS .tab files ()

• ESRI GIS shape files ()

OnLine resource

BGS Homepage  

The BGS Homepage is an entry point to the BGS data services.

Hierarchy level

dataset Dataset

Other

dataset

Statement

This dataset is derived in part from BGS DiGMapBG-50 data attributed with BGS Permeability Index data, from groundwater levels from BGS WellMaster database and from regional hydrogeological contours taken from the IGS series hydrogeological maps. The data has been produced using a 'rule-based' approach. The first step was to apply 'rules' to identify areas, based on geological considerations, where groundwater flooding could not occur, i.e. areas where non-aquifers are present at the ground surface. For all areas that were geologically susceptible, a second suite of rules was used to produce a national groundwater level surface using data taken from published BGS groundwater level contours, groundwater levels in BGS WellMaster database and inferred from some river levels. A further suite of rules was used to modify this groundwater level surface so that it was representative of conditions of groundwater flooding. Finally, this modified groundwater surface was compared with a digital terrain model (DTM) of the ground surface elevation and a final set of rules was used to zone the degree of susceptibility depending on the modelled depth of the groundwater surface below the land surface.

gmd:MD_Metadata

File identifier

9df8df52-d63d-37a8-e044-0003ba9b0d98   XML

Metadata language

English English

Hierarchy level

dataset Dataset

Date stamp

2020-10-22

Metadata standard name

UK GEMINI

Metadata standard version

2.3

Dataset URI

http://data.bgs.ac.uk/id/dataHolding/13603085