Estimating uncertainty in the current critical loads exceedance models
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The critical loads approach to quantifying areas at risk of damage requires deposition and critical loads data at the same spatial scale to calculate exceedance. While maps of critical loads for soil acidification are available at a 1 km scale no monitoring networks in Europe measure wet and dry inputs at this scale and, further, the models currently used to estimate deposition incorporate a number of assumptions which are not valid at the 1 km scale. Simulations of 1 km deposition from 20 km data show that the uncertainty introduced by using 20 km scale estimates of deposition is small, except in mountain areas where it can give misleading results, but a major problem is the uncertainty in estimates of deposition at the 20 km scale produced by the current models.
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- Estimating uncertainty in the current critical loads exceedance models
Water, Air, and Soil Pollution
Volume 85, Issue 4 , pp 2503-2508
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- Kluwer Academic Publishers
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- critical load
- deposition model
- spatial scale
- probability distribution
- Industry Sectors
- Author Affiliations
- 1. Institute of Terrestrial Ecology, Edinburgh Research Station, Bush Estate, EH26 0QB, Penicuik, Midlothian, Scotland
- 2. Institute of Terrestrial Ecology, Monks Wood, Abbots Ripton, PE17 2LS, Huntingdon, England
- 3. Institute of Terrestrial Ecology, Merlewood Research Station, Grange-over-Sands, LAU 6JU, Cumbria, England