BGS GeoSure Shrink Swell 3D for London and Thames Valley
The BGS GeoSure Shrink Swell 3D data is a regional hazard susceptibility map that identifies areas of potential shrink–swell hazard, in three dimensional space, at intervals down to 20m in the London and Thames Valley area. Shrinking and swelling clays can change volume due to variation in moisture, which can cause ground movement that may affect many foundations. The data provides an indication of variation in Volume Change Potential (VCP) of shrink-swell clays and is classified on an A-E (low to high) range of hazard susceptibility. BGS GeoSure Shrink Swell 3D for London is part of the BGS GeoSure range of natural subsidence products. It is derived from the BGS Geology 50k data, the BGS London Lithoframe 3D model and the GeoSure v7 Shrink-Swell layer.
dataset
https://www.bgs.ac.uk/datasets/bgs-geosure-shrink-swell-3d-for-london-and-thames-valley/
name: BGS GeoSure shrink–swell 3D for London and Thames Valley
function: information
http://data.bgs.ac.uk/id/dataHolding/13607109
eng
geoscientificInformation
publication
2008-06-01
data.gov.uk (non-INSPIRE)
Geohazards
Three dimensional models
revision
2022
NERC_DDC
-1.2822
0.4588
51.6725
51.3364
revision
2009
Greater London Authority [id=41441]
2017-01
creation
2017-01
asNeeded
The dataset was derived from the London Lithoframe 3D model. Depths to each of the formations used in the model were extracted across the model extent at a resolution of 50x50m. This data was then further processed to produce an attributed feature class showing which formation was present at specific depths. The depths used are 0, 1, 2, 3, 4, 5, 10, 15 and 20m. Each of the formations was given a VCP value and VCP range. A further processing stage ensured consistency with the DIGMAP 50k surface geology.
publication
2011
false
See the referenced specification
publication
2010-12-08
false
See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF
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.
British Geological Survey
Environmental Science Centre, Nicker Hill, Keyworth
NOTTINGHAM
NG12 5GG
United Kingdom
0115 936 3143
0115 936 3276
distributor
British Geological Survey
Environmental Science Centre, Nicker Hill, Keyworth
NOTTINGHAM
NG12 5GG
United Kingdom
0115 936 3143
0115 936 3276
pointOfContact
British Geological Survey
Environmental Science Centre,Keyworth
NOTTINGHAM
NG12 5GG
United Kingdom
+44 115 936 3100
pointOfContact
2024-04-18