Identification info

Metadata Language

English (en)

Dataset Reference Date ()

2018-11

Identifier

http://data.bgs.ac.uk/id/dataHolding/13607405

Maintenance and update frequency

biannually

GEMET - INSPIRE themes

• Geology

BGS Thesaurus of Geosciences

• Insurance

• Risk management

• Geohazards

• Risk analysis

Keywords

• NERC_DDC

Limitations on Public Access

otherRestrictions

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

otherRestrictions

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. iprdigital@bgs.ac 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

Topic category

• Geoscientific information

Extent

GBN

Dataset Reference Date ()

2009

Extent

GREAT BRITAIN [id=139600]

Dataset Reference Date ()

1979

Begin date

1885

End date

2018-06

Additional information

Positional Accuracy - Cartographic Accuracy plus or minus 50 metres. Accuracy of geological interpretation not assessed.

 

Distribution Information

Data format

• MapInfo Files

  ()

• ESRI Files

  ()

 

Quality Scope

dataset

Other

dataset

Statement

The sources of the newGIP dataset are the GeoSure v8 product and Code-Point® Ordnance Survey data v2018.3. 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 'BGS Geology' (formerly DiGMapGB) at the 1:50,000 scale data that is used as the geological basis for the GeoSure hazard layers. • 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

7c483ac6-7a20-5ac1-e054-002128a47908 XML

Metadata Language

English (en)

Resource type

dataset

Metadata Date

2023-02-18

Metadata standard name

UK GEMINI

Metadata standard version

2.3