Date (Creation)

2015-11

Citation identifier

http://data.bgs.ac.uk/id/dataHolding/13606855

Point of contact

Organisation name	Individual name	Electronic mail address	Role
British Geological Survey	Enquiries	enquiries@bgs.ac.uk	Distributor
British Geological Survey	Enquiries	enquiries@bgs.ac.uk	Point of contact
British Geological Survey	Enquiries	enquiries@bgs.ac.uk	Processor
British Geological Survey	Enquiries	not available	Distributor
British Geological Survey	Enquiries	not available	Processor

Maintenance and update frequency

Biannually

GEMET - INSPIRE themes, version 1.0

• Geology

BGS Thesaurus of Geosciences

• Insurance

• Risk management

• Natural hazards

• UK Location (INSPIRE)

• Risk analysis

dataCentre

• UK Location (INSPIRE)

Keywords

• NERC_DDC

Access constraints

Other restrictions

Other constraints

license

Other constraints

Either : (i) the dataset has not been formally approved by BGS for access and use by external clients under license; and / or (ii) the dataset contains 3rd party data or information obtained by BGS under terms and conditions that must be consulted before the dataset can be provided to, or accessed by, BGS staff or external clients. 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 access restrictions. This staff member should revert to the IPR Section (IPR@bgs.ac.uk) for advice, should the position not be clear.

Use constraints

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

The dataset is made available to external clients under BGS Digital Data Licence terms and conditions. Revert to the IPR Section ( iprdigital@bgs.ac.uk) if further advice is required with regard to permitted usage.

Spatial representation type

Vector

Language

English

Topic category

• Geoscientific information

Geographic identifier

GB

ISO 3166_1 alpha-3 2009 revision

Geographic identifier

UK [id=139300]

British Geological Survey Gazetteer: Geographical hierarchy from Geosaurus 1979 creation

Geographic identifier

UKM

ISO 3166_2 2009 revision

End date

2015-07-17

Supplemental Information

Limitations: The spatial resolution of the data is the same as the GeoSure data they are derived from, which, therefore, requires that a minimum search radius of 50m around a site or property be utilized in any application (in addition to any site, property or other search area). GeoSure is concerned with potential ground stability related to NATURAL geological conditions only. GeoSure does NOT cover any man-made hazards, such as contaminated land or mining. The only exception to this is the Compressible Ground hazard layer, which does consider man-made ground e.g. landfill. GeoSure is based on, and limited to, an interpretation of the records in the possession of The British Geological Survey at the time the dataset was created. An indication of natural ground instability does not necessarily mean that a location will be affected by ground movement or subsidence. Such an assessment can only be made by inspection of the area by a qualified professional. The newGIP is designed to produce a dataset that can be used to indicate the potential insurance risk for natural ground instability to be active at a site. Singularly, it is not a full ‘risk’ model, but is designed to provide a potential geological risk analysis and intended for incorporation (along with a full set of other risk factors) into more detailed insurance risk models. The newGIP is intended for use based on the 5 hazard classes assigned to the data. Any variation on this usage or manipulation of categories is the sole responsibility of the user.

Unique resource identifier

OSGB 1936 / British National Grid (EPSG::27700)

Distribution format

Name	Version

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
British Geological Survey	Enquiries	enquiries@bgs.ac.uk	Distributor

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
British Geological Survey	Enquiries	not available	Distributor

OnLine resource

Protocol	Linkage	Name
	http://www.bgs.ac.uk/products/geohazards/geosureInsurance.html

Hierarchy level

Dataset

Other

dataset

Statement

The sources of the newGIP dataset are the GeoSure v7 product and Code-Point® Ordnance Survey data v2015.3. Unified Hazards: • The creation of the Unified Hazards layer requires the six master GeoSure layers. The six hazard layers are combined into a single unified layer using a set of weighting factors that balance the effect of each of the individual hazards. The weighting factors have been derived via an Expert Elicitation exercise. The exercise considered the combination of hazard impact and probability of occurrence. • Once the six hazard layers have been reclassified, they are combined into a single layer. The total score (Total) and Geometric Mean / Arithmetic Mean ratio (GMdivAM) are then calculated. Note that when calculating GMdivAM a nominal value of 0.1 was substituted for any zero values. Derived Postcode Database: • The postcode centroids layer (OS CodePoint OpenData), as supplied by Ordnance Survey, is buffered using a value of 355 metres for urban postcodes and 405 meters for rural postcodes. These values take into account the 50 metres cartographic precision of the Digital Geological Map of Great Britain at the 1:50,000 scale (DiGMapGB-50) data that is used as the geological basis for the GeoSure hazard layers. The cut-off point between the urban and rural polygons (OS CodePoint with polygons dataset) was determined from the distribution of the area of postcodes and resulted in a figure of 74668.84 m2. • The DPD scores are calculated by intersecting each postcode polygon with the Unified Hazards Vector Dataset and calculating the area weighted average of the individual hazard scores within each buffered postcode polygon. Each individual hazard score is then summed to give a total score. The total score is classed into 5 equal classes to produce a Class field. The classes used are Low, Low-Medium, Medium, Medium-High, High.

Metadata

File identifier

268a6c43-3b29-12ab-e054-002128a47908 XML

Metadata language

English

Hierarchy level

Dataset

Date stamp

2024-09-13

Metadata standard name

UK GEMINI

Metadata standard version

2.3

Metadata author

Organisation name	Individual name	Electronic mail address	Role
British Geological Survey		enquiries@bgs.ac.uk	Point of contact

Dataset URI

http://data.bgs.ac.uk/id/dataHolding/13606855