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DAERA Network Contribution — SciMAP modelled pollution scores by river basin (26 catchments) source files

Per-river-basin pollution-contribution scores from the SciMAP hydrological model (CEH Land Cover 2007 + Met Office rainfall + 5 m DTM), rasterised at 25 m and rendered as a Web Mercator tile pyramid coloured on inferno (low → high contribution). Raw GRIDCODE values of 58–100 stretch the inferno…