Examples of Recent Models in Environmental Impact Assessment

Models are being used extensively to study the impact on the environment of a wide range of man-made influences. These include land-use change (e.g. afforestation), effluent discharges, flood-relief channels, reservoir developments, atmospheric pollution and the impacts of agrochemicals. In this paper several models are described which are being used by the Institute of Hydrology for environmental impact assessment. These models include MAGIC (Model of Acidification of Groundwater in Catchments), QUASAR (Quality Simulation Along Rivers) and a nitrogen simulation model for investigating the behaviour of nitrate in reservoirs.