HR: 0800h
AN: A51D-0111    [Abstracts]
TI: PTR-MS Measurements From the BAe-146 Research Aircraft During the ICARTT Campaign
AU: * Hulse, A
EM: a.hulse@uea.ac.uk
AF: University of East Anglia, School of Environmental Sciences, Norwich, U.K., Norwich, NR4 7TJ United Kingdom
AU: Oram, D E
A51D-0111 AF: University of East Anglia, School of Environmental Sciences, Norwich, U.K., Norwich, NR4 7TJ United Kingdom
AU: Reeves, C E
A51D-0111 AF: University of East Anglia, School of Environmental Sciences, Norwich, U.K., Norwich, NR4 7TJ United Kingdom
AU: Penkett, S A
A51D-0111 AF: University of East Anglia, School of Environmental Sciences, Norwich, U.K., Norwich, NR4 7TJ United Kingdom
AU: Lewis, A C
A51D-0111 AF: University of York, Department of Chemistry, York, U.K., York, YO10 5DD United Kingdom
AU: Hopkins, J R
A51D-0111 AF: University of York, Department of Chemistry, York, U.K., York, YO10 5DD United Kingdom
AU: Watson, N M
A51D-0111 AF: University of York, Department of Chemistry, York, U.K., York, YO10 5DD United Kingdom
AU: Methven, J
A51D-0111 AF: University of Reading, Department of Meteorology, Reading, U.K, Reading, RG6 6AH United Kingdom
AU: Purvis, R
A51D-0111 AF: FAAM, Cranfield, U.K., Cranfield, MK43 0AL United Kingdom
AB: A Proton Transfer Reaction Mass Spectrometer (PTR-MS) has been adapted for use on the new UK Research Aircraft (BAe Systems 146, FAAM) and took part in the multi-national ICARTT (International Consortium for Atmospheric Research on Transport and Transformation) experiment in the summer of 2004, with the aim of studying chemical processing as pollution is transported away from source regions. The PTR-MS method is based on proton transfer reactions of H3O+ ions with volatile organic compounds (VOCs) and is capable of monitoring VOCs in near real time with detection limits of a few tens of pptv. Flying out of Horta airport (Faial Island, Azores), the aircraft frequently intercepted plumes of pollution emanating from the North American continent, some of which were heavily impacted by the Alaskan forest fires. Compounds measured include methanol, acetonitrile, acetaldehyde, acetone, benzene and toluene. Data will be presented to include vertical profiles and comparisons with CO, O3 and other tracers. The in situ PTR-MS measurements will also be compared with VOC/OVOC data from bottle samples which were collected during flight and analysed using gas chromatography.
DE: 0300 ATMOSPHERIC COMPOSITION AND STRUCTURE
DE: 0365 Troposphere: composition and chemistry
DE: 0368 Troposphere: constituent transport and chemistry
SC: Atmospheric Sciences [A]
MN: Fall Meeting 2005