268a6c43-3b29-12ab-e054-002128a47908
English
dataset
British Geological Survey
+44 115 936 3100
enquiries@bgs.ac.uk
pointOfContact
2024-03-27
UK GEMINI
2.3
http://data.bgs.ac.uk/id/dataHolding/13606855
OSGB 1936 / British National Grid (EPSG::27700)
newGeoSure Insurance Product version 7 2015.3
2015-11
creation
http://data.bgs.ac.uk/id/dataHolding/13606855
**This dataset has been superseded** The newGeoSure Insurance Product (newGIP) provides the potential insurance risk due to natural ground movement. It incorporates the combined effects of the 6 GeoSure hazards on (low-rise) buildings: landslides, shrink-swell clays, soluble rocks, running sands, compressible ground and collapsible deposits. The newGIP evaluates these hazards using a series of processes including statistical analyses and expert elicitation techniques to create a derived product that can be used for insurance purposes such as identifying and estimating risk and susceptibility. The newGIP is made up of 3 components. 1. Derived Postcode Database (DPD): this dataset contains generalised information at a postcode level and it’s updated on a 6 monthly basis. The DPD is designed to provide a ‘summary’ value representing the combined effects of the GeoSure dataset across a postcode sector area. This product uses Code-Point® Open data to relate postcodes to Ordnance Survey grid references. This dataset is available in a range of GIS formats including Access (*.dbf), ArcGIS (*.shp) or MapInfo (*.tab). 2. Unified Hazards (Vector Dataset): This is a detailed vector dataset providing spatial GIS information that can be used for more specific analysis at a higher resolution (e.g. site/address specific at 1:50k resolution). This dataset also has additional attributes outlining the type and scale of the potential hazards at any one location. This dataset is updated with the release of each version of DiGMapGB-50 and is available in a range of GIS formats including ArcGIS (*.shp) or MapInfo (*.tab). 3. Unified Hazards (Gridded Dataset): This dataset consists of a raster grid derived from the vector dataset; however, due to the raster grid format, the grid only carries limited attribution. Data for the newGIP is provided for national coverage across Great Britain. The newGeoSure Insurance Product dataset is produced for use at 1:50 000 scale providing 50 m ground resolution.
Enquiries
British Geological Survey
0115 936 3143
0115 936 3276
Environmental Science Centre, Nicker Hill, Keyworth
NOTTINGHAM
NOTTINGHAMSHIRE
NG12 5GG
United Kingdom
enquiries@bgs.ac.uk
distributor
Enquiries
British Geological Survey
0115 936 3143
0115 936 3276
Environmental Science Centre, Nicker Hill, Keyworth
NOTTINGHAM
NOTTINGHAMSHIRE
NG12 5GG
United Kingdom
enquiries@bgs.ac.uk
pointOfContact
Enquiries
British Geological Survey
0115 936 3143
0115 936 3276
Environmental Science Centre, Nicker Hill, Keyworth
NOTTINGHAM
NOTTINGHAMSHIRE
NG12 5GG
United Kingdom
enquiries@bgs.ac.uk
processor
Enquiries
British Geological Survey
not available
distributor
Enquiries
British Geological Survey
not available
processor
biannually
https://resources.bgs.ac.uk/images/geonetworkThumbs/268a6c43-3b29-12ab-e054-002128a47908.png
Geology
GEMET - INSPIRE themes, version 1.0
2008-06-01
publication
Insurance
Risk management
Natural hazards
UK Location (INSPIRE)
Risk analysis
BGS Thesaurus of Geosciences
2022
revision
UK Location (INSPIRE)
dataCentre
NERC_DDC
otherRestrictions
license
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.
otherRestrictions
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.
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.
vector
English
geoscientificInformation
ISO 3166_1 alpha-3
2009
revision
GB
British Geological Survey Gazetteer: Geographical hierarchy from Geosaurus
1979
creation
UK [id=139300]
ISO 3166_2
2009
revision
UKM
-8.1700
2.6900
49.8800
60.8100
2015-07-17
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.
Enquiries
British Geological Survey
0115 936 3143
0115 936 3276
Environmental Science Centre, Nicker Hill, Keyworth
NOTTINGHAM
NOTTINGHAMSHIRE
NG12 5GG
United Kingdom
enquiries@bgs.ac.uk
distributor
Enquiries
British Geological Survey
not available
distributor
http://www.bgs.ac.uk/products/geohazards/geosureInsurance.html
information
dataset
dataset
INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of Geology
2011
publication
See the referenced specification
false
Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services
2010-12-08
publication
See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF
false
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.