Water, Air and Soil Pollution: Focus

, Volume 1, Issue 5, pp 341–353

Uncertainty in Estimation of Wet Deposition of Sulphur

  • Rognvald I. Smith
  • David Fowler

DOI: 10.1023/A:1013144231312

Cite this article as:
Smith, R.I. & Fowler, D. Water, Air, & Soil Pollution: Focus (2001) 1: 341. doi:10.1023/A:1013144231312


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.

orographic enhancementsensitivityuncertainty analyseswet deposition

Copyright information

© Kluwer Academic Publishers 2001

Authors and Affiliations

  • Rognvald I. Smith
    • 1
  • David Fowler
    • 1
  1. 1.Centre for Ecology and HydrologyEdinburgh Research Station, Bush EstatePenicuik, MidlothianU.K.