Introduction
The Polluted Troposphere Programme was a 5-year NERC thematic research programme which was centred upon the study of polluted boundary layer air and its transport to the free troposphere. The programme focused on the regional scale, defined as intermediate between urban and hemispheric.
The Polluted Troposphere programme started in 2001 and finished in 2006. It ran a single round of awards, through which six projectswere funded:
- Tropospheric ORganic CHemistry experiment (TORCH).
- CLOud Processing of regional Air Pollution advecting over land and sea. (CLOPAP)
- Transport and mixing in fronts.
- Ionisation as a precursor to aerosol formation.
- Advanced GC-MS technology for observing OVOCs and NMHCS in the polluted troposphere.
- Aircraft Measurement of Chemical Processing and Export fluxes of Pollutants over the UK (AMPEP).
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.
Measurements, Availability of data and file format
AMPEP was an aircraft measurement campaign using the FAAM BAe-146-301 and the flights took place between 21 Apr 2005 and 19 September 2006. The dataset includes:
- Data from the core FAAM instruments. For a description of these instruments see the details on the FAAM web site .
- Data from 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 will measure a broad range of atmospheric trace species and aerosols.
To check when the all the flights took place for this campaign, see the FAAM flight schedule.
Data collected for this project can be found in the Polluted Troposphere data directory.
The data are stored in NetCDF and NASA-Ames formats. Filenames follow the BADC filename convention.
Access Restrictions
Regarding conditions of access to this dataset, the procedure is slightly different in the case of data from core instruments from FAAM BAe-146 aircraft campaigns. For a description of these instruments see the details on the FAAM web site .
- Processed BAe-146 core data are publicly available. If you would like to access these data, please refer to the FAAM application procedures. Access is granted automatically once you have agreed online with the FAAM Conditions of Use.
- Access to raw Bae-146 core data is restricted to FAAM staff and scientists involved in test flights. To access these data, please refer to the
FAAM application procedures.
Users are requested to contact the project PI prior to publishing any work based on or using this data.
Documentation, Links to further information and references
- An online workspace was created for the Polluted Troposphere participants in order to ease cross-project coordination and exchange of views, information and preliminary data. The workspace is only accessible to the programme participants who have been invited. If you are a Polluted Troposphere scientist and have not been invited to access the workspace, please contact the BADC helpdesk.
Citation
Natural Environment Research Council, [Fowler, D.; Gallagher, M.]. Polluted Troposphere - Aircraft Measurement of Chemical Processing and Export fluxes of Pollutants (AMPEP), [Internet]. NCAS British Atmospheric Data Centre, 2007-, Date of citation. Available from http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dataent_11738855872817340
Who to contact
- If you have queries about these pages or about obtaining Polluted Troposphere data from the BADC then you should contact BADC Support. Your query should be answered within one working day. When follow-up work is required, the BADC support will carry out the work as quickly and efficiently as possible, and in any case, the user will be kept informed of progress.
- The Programme Superintending Officer was Dr. Ruth Kelman (NERC, Swindon).
- The chairman of the Programme Steering Committee was Prof Gerard Jennings (Galway, Ireland).