2008
DOI: 10.1144/1470-9236/07-201
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Abstract: An essential prerequisite for any engineering or hydrogeological investigation of soluble rocks is the identification and description of dissolution features such as stream sinks, springs, sinkholes and caves. The British Geological Survey (BGS) is creating a National Karst Database that records such features across the country. The database currently covers much of the Carboniferous Limestone, the Chalk and particularly the Permo-Triassic gypsum and halite where rapid, active dissolution has caused significan… Show more

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Cited by 54 publications
(45 citation statements)
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References 14 publications
(7 reference statements)
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“…Another geohazard that is apparently missed by the PSI data concerns dissolution processes. Although this geohazard has been both observed in the field and recorded in the National Karst Database (FARRANT and COOPER 2008) and in terms of susceptibility via the GeoSure data set, for instance where the white Cretaceous Chalk is present in the southern sector of Greater London, no PanGeo polygons are associated to this particular geohazard. This is due to the fact that dissolution processes and associated motions are generally faster than the maximum potential motion that PSI techniques can estimate before encountering phase unwrapping problems (i.e., 15 cm/year for ERS or ENVISAT data with 35 days repeat cycle).…”
Section: Discussionmentioning
confidence: 97%
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“…Another geohazard that is apparently missed by the PSI data concerns dissolution processes. Although this geohazard has been both observed in the field and recorded in the National Karst Database (FARRANT and COOPER 2008) and in terms of susceptibility via the GeoSure data set, for instance where the white Cretaceous Chalk is present in the southern sector of Greater London, no PanGeo polygons are associated to this particular geohazard. This is due to the fact that dissolution processes and associated motions are generally faster than the maximum potential motion that PSI techniques can estimate before encountering phase unwrapping problems (i.e., 15 cm/year for ERS or ENVISAT data with 35 days repeat cycle).…”
Section: Discussionmentioning
confidence: 97%
“…2.1). Background input data used to map geohazards include Ordnance Survey (OS) topographic maps at 1:10,000-1:50,000 scales, 0.25-m resolution aerial photographs, 5-m resolution NEXTMap Ò DEM, the Digital Geological Map of Great Britain (DiGMapGB) at 1:625,000 to 1:10,000 scales (SMITH, 2013), the Superficial Deposits Thickness Model (SDTM) at 1:50,000 scale (LAWLEY and GARCIA-BAJO 2009), the National Landslide Database (NLD;FOSTER et al 2012) and Karst Database (FARRANT and COOPER 2008), and groundwater pumping records from recent surveys carried out by the Environment Agency (EA 2007(EA , 2010.…”
Section: Interpretation Methodology and Input Datamentioning
confidence: 99%
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“…These features can be mapped producing an inventory of items such as dolines, evidence of subsidence and building damage (Gutiérrez and Cooper, 2002;Nisio et al, 2007;Farrant and Cooper 2008;Cooper, 2008a and b;Galve et al, 2009a). Analysis of the spatial and temporal distribution of the features and the controlling factors can then permit the designation of planning control areas ( Figure 5).…”
Section: Cities and Townsmentioning
confidence: 99%
“…In the UK, GIS has been used to zone the country into five categories of karst problem susceptibility. The zones were calculated using datasets that included: digital geological maps, terrain (slope) models, information about buried karst, runoff zones from areas of semi-impervious cover and superficial deposit thickness (Cooper, 2008b;Farrant and Cooper, 2008). These zones have been validated by independent information held in the UK National karst database.…”
Section: Surveying Sinkhole Susceptibility Gis and Planningmentioning
confidence: 99%