Abstract
A model is described for predicting wet deposition ofsulphur in Britain from rainfall and site measurementsof ion concentration in precipitation. This modelincludes orographic enhancement of both rainfall andion concentration. The model output is comparedagainst available measurement data. Sensitivity anduncertainty analyses are used to predict the outputuncertainty. If the stated assumptions can be shown tobe correct, the wet deposition for Britain at the 5 kmscale is accurate to ±35% across the country. Theanalyses show a larger uncertainty in central Englandand a possible bias towards underestimation of wetdeposition, the latter being of importance incalculating critical load exceedances in remote areas.
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Dore, A. J., Choularton, T. W., Fowler, D. and Storeton-West, R.: 1990, ‘Field measurements of wet deposition in an extended region of complex topography’, Quart. J. Roy. Met. Soc. 116, 1193–1212.
Dore, A. J., Choularton, T. W., Fowler, D. and Crossley, A.: 1992a, ‘Orographic enhancement of snowfall’, Environ. Pollut. 75, 175–179.
Dore, A. J., Choularton, T. W., Brown, R. and Blackall, R. M.: 1992b, ‘Orographic rainfall enhancement in the mountains of the Lake District and Snowdonia’, Atmos. Environ. 26A, 357–371.
Dore, A. J. and Choularton, T.W.: 1992c, ‘A 3-dimensional model of air-flow and orographic rainfall enhancement’, Quart. J. Roy. Met. Soc. 118, 1041–1056.
Fowler, D., Cape, J. N., Leith, I. D., Choularton, T.W., Gay, M. J. and Jones, A.: 1988, ‘The influence of altitude on rainfall composition at Great Dun Fell’, Atmos. Environ. 22, 1355–1362.
Fowler, D., Leith, I. D., Binnie, J., Crossley, A., Inglis, D. W. F., Choularton, T. W., Gay, M., Longhurst, J. W. S. and Conland, D. E.: 1995, ‘Orographic enhancement of wet deposition in the United Kingdom: Continuous monitoring’, Water, Air, and Soil Pollut. 85, 2107–2112.
Fowler, D., Smith, R. I., Crossley, A., Leith, I. D., Mourne, R.W., Brandford, D. D. and Moghaddam, M.: 1998, ‘Quantifying fine scale variability in deposition of pollutants in complex terrain using 210Pb inventories in soil’, Water, Air, and Soil Pollut. 105, 459–470.
Hornung, M., Bull, K. R., Cresser, M., Hall, J., Langan, S. J., Loveland, P. and Smith, C.: 1995, ‘An empirical map of critical loads of acidity for soils in Great Britain’, Environ. Pollut. 90, 301–310.
Hudson, J. A. and Gilman K.: 1993, ‘Long term variability in the water balances of the Plylimon catchments’, J. Hydrol. 143, 355–380.
Inglis, D.W.F., Choularton, T.W., Wicks, D., Fowler, D., Leith, I.D., Werkman, B. and Binnie, J.: 1995, ‘Orographic enhancement of wet deposition in the United Kingdom: Case studies and modelling’, Water, Air, and Soil Pollut. 85, 2119–2124.
Monteith, D. T. and Evans, C. D. (eds): 2000, U.K. Acid Waters Monitoring Network: 10 Year Report, ENSIS Publishing, London.
Nespor, V. and Sevruk, B.: 1999, ‘Estimation of wind-induced error of rainfall gauge measurements using a numerical simulation’, J. Atmos. Ocean. Tech. 16, 450–464.
Nilsson, J. and Grennfelt, P. (eds): 1988, Critical Loads for Sulphur and Nitrogen, Report 1988:15, Nordic Council of Ministers, Copenhagen.
Reynolds, B., Fowler, D., Smith, R. I. and Hall, J. R.: 1997, ‘Atmospheric inputs and catchment solute fluxes for major ions in five Welsh upland catchments’, J. Hydrol. 194, 305–329.
RGAR: 1997, Acid Deposition in the United Kingdom 1992–1994, Fourth Report of the Review Group on Acid Rain, AEA Technology plc, Culham.
Smith, R. I., Fowler, D. and Bull, K. R.: 1995, ‘Quantifying the Scale Dependence in Estimates of Wet and Dry Deposition and the Implications for Critical Load Exceedances’, in G. J. Heij and J. W. Erisman (eds), Acid Rain Research: Do We Have Enough Answers?, Elsevier, Amsterdam, pp. 175–186.
Weston, K. J. and Fowler, D.: 1991, ‘The importance of orography in spatial patterns of rainfall acidity in Scotland’, Atmos. Environ. 25A, 1517–1522.
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Smith, R.I., Fowler, D. Uncertainty in Estimation of Wet Deposition of Sulphur. Water, Air, & Soil Pollution: Focus 1, 341–353 (2001). https://doi.org/10.1023/A:1013144231312
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DOI: https://doi.org/10.1023/A:1013144231312