Identification

Title

Permeability Dataset for Great Britain (Artificial Deposits)

Abstract

The data comprises GIS layers representing the permeability of artificial deposits for Great Britain. The permeability data has been derived from DiGMap-GB (Digital Geological Map Data of Great Britain), and therefore reflects the scale of DiGMap-GB. For the majority of the Great Britain, the scale is 1:50,000. The data is updated annually, or after a major new release of DiGMap-GB. The permeability data describes the fresh water flow through these deposits and the ability of a lithostratigraphical unit to transmit water. Maximum and minimum permeability indices are given for each geological unit to indicate the range in permeability likely to be encountered and the predominant flow mechanism (fracture or intergranular). Neither of the assigned values takes into account the thickness of either the unsaturated or saturated part of the lithostratigraphical unit. The data can be used freely internally, but is licensed for commercial use. It is best displayed using a desktop GIS, and is available in vector format as ESRI shapefiles and MapInfo TAB files.

Resource type

dataset

Resource locator

https://www.bgs.ac.uk/datasets/permeability/

protocol: HTTP

name: BGS Datasets - Permeability Homepage

description: Resource page for dataset with contact and licensing details

function: information

Unique resource identifier

code

http://data.bgs.ac.uk/id/dataHolding/13603039

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Additional information source

No new data captured but an interpretation of existing data, DiGMap-GB, that is under continuing revision.

Classification of spatial data and services

Topic category

geoscientificInformation

Keywords

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

publication

effective date

2008-06-01

Keyword set

keyword value

Permeability

Hydrogeology

Ground water movement

originating controlled vocabulary

title

reference date

date type

revision

effective date

2011

Keyword set

keyword value

NERC_DDC

Geographic location

West bounding longitude

-2.0000

East bounding longitude

1.8400

North bounding latitude

53.4900

South bounding latitude

51.6400

Extent

Extent group

authority code

title

reference date

date type

revision

effective date

2009

code identifying the extent

GBN

Extent group

authority code

title

reference date

date type

creation

effective date

1979

code identifying the extent

GREAT BRITAIN [id=139600]

Temporal reference

Temporal extent

Begin position

End position

Dataset reference date

date type

creation

effective date

2005-07-29

Frequency of update

annually

Quality and validity

Lineage

The data is derived from DiGMap-GB. DiGMap-50 was used where available, and in the areas where there was no 1:50,000 coverage, DiGMap-250 (for bedrock deposits) and DiGMap-625 (for superficial deposits) were used in its place. Each lithology that occurred in DiGMap-GB was reattributed with permeability data. The maximum and minimum permeability indices were given for each geological unit along with the predominant flow mechanism. Hydrogeologists from BGS Wallingford and Edinburgh completed the attribution in Microsoft Access. This data was then joined to the DiGMap-GB GIS data in ESRI's ArcGIS. Each of the four permeability data layers (bedrock, superficial, artificial and mass movement) are split into ten geographical areas to make them easier to display and interrogate. These include England and Wales - South East, England and Wales - South West, England and Wales - East Midlands, England and Wales - West Midlands and Wales, England and Wales - North East, England and Wales - North West, Scotland - East, Scotland - West, Scotland - North East, and Scotland - North West.

Conformity

Conformity report

specification

title

reference date

date type

publication

effective date

2011

degree

false

explanation

See the referenced specification

Conformity report

specification

title

reference date

date type

publication

effective date

2010-12-08

degree

false

explanation

See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF

Data format

name of format

ESRI Shapefile

version of format

Constraints related to access and use

Constraint set

Limitations on public access

Constraint set

Limitations on public access

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.

Responsible organisations

Responsible party

organisation name

British Geological Survey

full postal address

Maclean Building, Crowmarsh Gifford

WALLINGFORD

OX10 8BB

United Kingdom

telephone number

01491 838800

facsimile number

01491 692345

email address

enquiries@bgs.ac.uk

responsible party role

distributor

Responsible party

organisation name

British Geological Survey

full postal address

Maclean Building, Crowmarsh Gifford

WALLINGFORD

OX10 8BB

United Kingdom

telephone number

01491 838800

facsimile number

01491 692345

email address

enquiries@bgs.ac.uk

responsible party role

pointOfContact

Responsible party

organisation name

British Geological Survey

full postal address

Maclean Building, Crowmarsh Gifford

WALLINGFORD

OX10 8BB

United Kingdom

telephone number

01491 838800

facsimile number

01491 692345

email address

enquiries@bgs.ac.uk

responsible party role

custodian

Metadata on metadata

Metadata point of contact

organisation name

British Geological Survey

full postal address

Maclean Building, Crowmarsh Gifford

WALLINGFORD

OX10 8BB

United Kingdom

telephone number

+44 115 936 3100

email address

enquiries@bgs.ac.uk

responsible party role

pointOfContact

Metadata date

2023-01-23

Metadata language