The emission and deposition fluxes of trace gases and aerosols at the atmosphere-surface boundary represent key processes at the heart of the major environmental problems from acid rain to global climate change. Within this area of science the up-scaling of fluxes from the scale of many measurements (0.1m2 to 102m2) to provide country or regional scale emission or deposition fluxes presents a considerable challenge both in modelling and measurement validation.
n this seminar, examples of recent methods of measuring landscape scale fluxes using micrometeorological and boundary layer budget methods are described for the gases SO2, O3, NH3 and N2O, CH4 respectively. The prospects for application to aerosols and for application of satellite data are briefly considered.