The Handling of Hazard Data on a National Scale: A Case Study from the British Geological Survey

This paper reviews how hazard data and geological map data have been combined by the British Geological Survey (BGS) to produce a set of GIS-based national-scale hazard susceptibility maps for the UK. This work has been carried out over the last 9 years and as such reflects the combined outputs of a large number of researchers at BGS. The paper details the inception of these datasets from the development of the seamless digital geological map in 2001 through to the deterministic 2D hazard models produced today. These datasets currently include landslides, shrink-swell, soluble rocks, compressible and collapsible deposits, groundwater flooding, geological indicators of flooding, radon potential and potentially harmful elements in soil. These models have been created using a combination of expert knowledge (from both within BGS and from outside bodies such as the Health Protection Agency), national databases (which contain data collected over the past 175 years), multi-criteria analysis within geographical information systems and a flexible rule-based approach for each individual geohazard. By using GIS in this way, it has been possible to model the distribution and degree of geohazards across the whole of Britain.

[1]  J. Walsby.  GeoSure; a bridge between geology and decision-makers , 2008 .

[2]  J. Walsby.  Geohazard information to meet the needs of the British public and government policy , 2007 .

[3]  David B. Stephenson,et al.  Serial Clustering of Extratropical Cyclones , 2006 .

[4]  J. Guest,et al.  The increasing exposure of cities to the effects of volcanic eruptions: a global survey , 2000 .

[5]  R. Doff.  A Critical Analysis of the Solvency II Proposals , 2008 .

[6]  K. Hoyt,et al.  Keeping It Real: Advocating for Patients and Nurses. , 2015, Advanced emergency nursing journal.

[7]  J. Miles.  Use of a model data set to test methods for mapping radon potential. , 2002, Radiation protection dosimetry.

[8]  J. D. Appleton,et al.  Geological controls on radon potential in Scotland , 2009, Scottish Journal of Geology.

[9]  J. D. Appleton,et al.  Mapping variation in radon potential both between and within geological units , 2005, Journal of radiological protection : official journal of the Society for Radiological Protection.

[10]  Helen Reeves,et al.  The modelling and visualization of digital geoscientific data as a communication aid to land-use planning in the urban environment: an example from the Thames Gateway , 2008 .

[11]  R. Soeters,et al.  Landslide hazard and risk zonation—why is it still so difficult? , 2006 .

[12]  A. Smith,et al.  Applied geological maps for planning and development: a review of examples from England and Wales, 1983 to 1996 , 1999, Quarterly Journal of Engineering Geology.

[13]  Anthony H. Cooper,et al.  The GIS approach to evaporite-karst geohazards in Great Britain , 2008 .

[14]  J. D. Appleton,et al.  National-scale estimation of potentially harmful element ambient background concentrations in topsoil using parent material classified soil:stream–sediment relationships , 2008 .

[15]  T. R. Lister,et al.  The influence of parent material on topsoil geochemistry in eastern England , 2003 .

[16]  P. Aleotti,et al.  Landslide hazard assessment: summary review and new perspectives , 1999 .

[17]  A. Cooper,et al.  The development of a national geographic information system (GIS) for British karst geohazards and risk assessment , 2001 .

[18]  J. D. Appleton,et al.  Soil uranium, soil gas radon and indoor radon empirical relationships in the UK and other European countries , 2010 .

[19]  Eugenie L. Birch,et al.  Rebuilding Urban Places After Disaster: Lessons from Hurricane Katrina , 2007 .

[20]  M. Pitt.  Learning lessons from the 2007 floods , 2008 .

[21]  N. Breward,et al.  G-BASE: baseline geochemical mapping of Great Britain and Northern Ireland , 2005, Geochemistry: Exploration, Environment, Analysis.

[22]  Michael J. Thompson,et al.  The Wolfson geochemical atlas of England and Wales , 1978 .

[23]  John Rees,et al.  Regional modelling of geohazard change , 2009 .

[24]  José I. Barredo,et al.  Comparing heuristic landslide hazard assessment techniques using GIS in the Tirajana basin, Gran Canaria Island, Spain , 2000 .

[25]  Russell Lawley.  The Soil-Parent Material Database : a user guide , 2009 .

[26]  T. R. Lister,et al.  The assessment of point and diffuse metal pollution of soils from an urban geochemical survey of Sheffield, England , 2005 .

[27]  H. Rutter,et al.  The use of elevation models to predict areas at risk of groundwater flooding , 2010 .

[28]  P. A. Colgan,et al.  National approaches to controlling exposure to radon , 1996 .

[29]  John F. B. Mitchell,et al.  Quantifying the uncertainty in forecasts of anthropogenic climate change , 2000, Nature.

[30]  Stuart Clarke.  Confidence in geological interpretation : a methodology for evaluating uncertainty in common two and three-dimensional representations of subsurface geology , 2004 .

[31]  D. Entwisle,et al.  Property attribution of 3D geological models in the Thames Gateway, London: new ways of visualising geoscientific information , 2009 .

[32]  A. Keith Turner,et al.  Challenges and trends for geological modelling and visualisation , 2006 .

[33]  V. Lapenna,et al.  High-resolution geoelectrical tomographies in the study of Giarrossa landslide (southern Italy) , 2003 .

[34]  K. Widaman,et al.  The risk perceptions and policy response toward wildland fire hazards by urban home-owners , 1987 .

[35]  L. Jones,et al.  Modelling Volume Change Potential in the London Clay , 2011 .

[36]  M. Huddleston,et al.  The financial risks of climate change. Examining the financial implications of climate change using climate models and insurance catastrophe risk models. , 2009 .

[37]  J. C. Doornkamp.  Perception and Reality in the Provision of Insurance against Natural Perils in the UK , 1995 .

[38]  J. D. Appleton,et al.  Dealing with radon emissions in respect of new development : evaluation of mapping and site investigation methods for targeting areas where new development may require radon protective measures , 2000 .