The FLUXEX (Flux Experiment) project was an experiment to establish the fluxes of many ozone depleting gases (CFCs, HCFCs, halons) and greenhouse gases (HFCs, PFCs, SF6) from the UK. Its aim was to assess regional emission inventories of these gases to feed the UNEP/WMO Ozone Assessment and the UNFCCC. Attempts were also made to measure for the first time "new" ozone depleting gases, such as n-propyl bromide and hexachlorobutadiene, and to estimate UK emissions. To achieve this purpose, the FAAM aircraft, fitted with air sampling bottles, was flown in the boundary layer upwind and downwind of the UK. A total of 9 flights took place between 30. March and 29. September 2005.

Airborne atmospheric measurements from core and non-core instrument suites data on board the FAAM BAE-146 aircraft collected for Polluted Troposphere NERC Research Programme (AMPEP) and Flux Experiment (FLUXEX) projects.

Airborne atmospheric measurements from core and non-core instrument suites data on board the FAAM BAE-146 aircraft collected for Polluted Troposphere NERC Research Programme (AMPEP) and Flux Experiment (FLUXEX) projects.

Airborne atmospheric measurements from core and non-core instrument suites data on board the FAAM BAE-146 aircraft collected for Polluted Troposphere NERC Research Programme (AMPEP) and Flux Experiment (FLUXEX) projects.

Airborne atmospheric measurements from core and non-core instrument suites data on board the FAAM BAE-146 aircraft collected for Polluted Troposphere NERC Research Programme (AMPEP) and Flux Experiment (FLUXEX) projects.

Airborne atmospheric measurements from core and non-core instrument suites data on board the FAAM BAE-146 aircraft collected for Polluted Troposphere NERC Research Programme (AMPEP) and Flux Experiment (FLUXEX) projects.

Airborne atmospheric measurements from core and non-core instrument suites data on board the FAAM BAE-146 aircraft collected for Polluted Troposphere NERC Research Programme (AMPEP) and Flux Experiment (FLUXEX) projects.

Airborne atmospheric measurements from core and non-core instrument suites data on board the FAAM BAE-146 aircraft collected for Polluted Troposphere NERC Research Programme (AMPEP) and Flux Experiment (FLUXEX) projects.

Aircraft Measurement of Chemical Processing and Export fluxes of Pollutants over the UK (AMPEP) was part of the NERC Polluted Troposphere Research Programme project (Round 1 - NER/T/S/2002/00152 - Duration 2002 - 2005) and was led by Prof. D Fowler, NERC Centre for Ecology and Hydrology. This project was focussed on direct measurement of the atmospheric mass budget of a range of pollutants in the gas and aerosol phase in the boundary layer over the UK. New, state of the art equipment was applied to measure the atmospheric mass budget and, in particular, the net export from the downwind coast over the UK. For the majority of the pollutants this is the dominant term and its measurement provides a very powerful test of current understanding of the processes and the current generation of long range transport models. The approach was applied to sulphur compounds, oxidized and reduced nitrogen, ozone and related photochemical oxidant precursors, mercury, a range of heavy metals and the main radiatively active gases. The analysis and interpretation of the data was completed using a range of current long range transport, transformation and deposition models. AMPEP was an aircraft measurement campaign using the FAAM BAe-146-301 and the flights were scheduled to take place between March and September 2005. Flights took place between 21 Apr 2005 and 19 September 2006. The datasets include data from: - the core FAAM instruments. - non-core instruments fitted for the campaign including the UMIST aerosol mass spectrometer, gas analysers, aerosol filters, particle counters and a tunable diode laser, which measured a broad range of atmospheric trace species and aerosols.