Influence of meteorology and other input parameters on levels and loads of pollutants relevant to energy systems: a sensitivity study

摘要

A comprehensive assessment of energy systems includes environmental impacts, health risks, and economic aspects. One important issue deals with air pollution caused by the anthropogenic emissions from these systems. In the frame of the Swiss project "Comprehensive Assessment of Energy Systems" (Ganzheitliche Betrachtung von Energiesystemen, GaBE), concentrations and deposition of pollutants in Switzerland are calculated using a 3-dimensional chemical dispersion model. In view of the future energy systems, influences of variations in input parameters such as emissions, wind and pollutant concentrations in Switzerland as well as beyond the Swiss borders are investigated. Results will be interpreted in terms of damage for the environment using critical levels and loads approach. In this sensitivity study, the effects of initial and boundary concentrations of species, surface temperature, wind fields, pressure, mixing layer height, and top of the model region on the levels and daily loads of the pollutants were investigated. It was shown that initial concentrations do not have any significant effect, whereas boundary concentrations may play a very important role. The results indicated that temperature, pressure, mixing layer height, wind fields and top of region affect the concentrations and depositions significantly.