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The attribution and spatial data underpinning the model are that which is described and shown by Rollin (1987) and Gale (2004, 2005).The information is presented as either:a vector-based, irregular polygon coverage at 1:250 000 scalea vector-based, hexagonal, cellular grid (side length 1km, area c.2.6 Km2)Each raster/vector cell is attributed with a range of geological properties including modelled values for Thermal conductivity, thermal diffusivity, specific heat capacity and density. 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