Pollution events observed during CARIBIC flights in the upper troposphere between South China and the Philippines

Lai, SC, Baker, AK, Schuck, TJ, Van Velthoven, P, Oram, DE, Zahn, A, Hermann, M, Weigelt, A, Slemr, F, Brenninkmeijer, CA and Ziereis, H (2010) Pollution events observed during CARIBIC flights in the upper troposphere between South China and the Philippines. Atmospheric Chemistry and Physics, 10 (4). pp. 1649-1660.

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Abstract

A strong pollution episode in the upper troposphere between South China and the Philippines was observed during CARIBIC flights in April 2007. Five pollution events were observed, where enhancements in aerosol and trace gas concentrations including CO, CO2, CH4, non-methane hydrocarbons (NMHCs) and halocarbons were observed along the flight tracks during four sequential flights. The importance of the contribution of biomass/biofuel burning was investigated using chemical tracers, emission factor analysis, back-trajectory analysis and satellite images. The Indochinese peninsula was identified as the probable source region of biomass/biofuel burning. However, enhancements in the urban/industrial tracer C 2Cl4 during the events also indicate a substantial contribution from urban anthropogenic emissions. An estimation of the contribution of fossil fuel versus biomass/biofuel to the CO enhancement was made, indicating a biomass/biofuel burning contribution of ~54 to ~92% of the observed CO enhancements. Biomass/biofuel burning was found to be the most important source category during the sampling period.

Item Type: Article
Additional Information: © Author(s) 2010. This work is distributed under the Creative Commons Attribution 3.0 License.
Faculty \ School: Faculty of Science > School of Environmental Sciences
Related URLs:
Depositing User: Rosie Cullington
Date Deposited: 15 Feb 2011 11:39
Last Modified: 24 Jul 2019 14:09
URI: https://ueaeprints.uea.ac.uk/id/eprint/20339
DOI: 10.5194/acp-10-1649-2010

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