Estimating uncertainty in the current critical loads exceedance models.
Smith, R.I.; Hall, J.R.; Howard, D.C.. 1995 Estimating uncertainty in the current critical loads exceedance models. Water, Air and Soil Pollution, 85 (4). 2503-2508. 10.1007/BF01186210Full text not available from this repository.
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.
|Programmes:||CEH Programmes pre-2009 publications > Biogeochemistry|
|CEH Sections:||_ Pre-2000 sections|
|Additional Keywords:||critical load, deposition model, spatial scale, uncertainty, probability distribution|
|NORA Subject Terms:||Ecology and Environment
|Date made live:||22 May 2009 14:50|
Actions (login required)