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The impact of local surface changes in Borneo on atmospheric composition at wider spatial scales: coastal processes, land-use change and air quality

Pyle, J. A. and Warwick, N. J. and Harris, N. R. P. and Abas, Mohd Radzi and Archibald, A. T. and Ashfold, M. J. and Ashworth, Kirsti and Barkley, Michael P. and Carver, G. D. and Chance, K. and Dorsey, J. R. and Fowler, D. and Gonzi, S. and Gostlow, B. and Hewitt, C. N. and Kurosu, T. P. and Lee, J. D. and Langford, Ben and Moller, S. and Mackenzie, A. R. and Manning, A. J. and Misztal, P. and Nadzir, Mohd Shahrul Mohd and Nemitz, Eiko and Newton, Hannah and O'Brien, L. M. and Ong, Simon and Oram, David and Palmer, P. I. and Peng, Leong Kok and Phang, Seiw-Moi and Pike, R. and Pugh, T. A. M. and Rahman, Noorsaadah Abdul and Robinson, A. D. and Sentian, Justin and Samah, Azizan Abu and Skiba, U. and Ung, Huan Eng and Yong, Sei Eng and Young, P. J. (2011) The impact of local surface changes in Borneo on atmospheric composition at wider spatial scales: coastal processes, land-use change and air quality. Philosophical Transactions B: Biological Sciences, 366 (1582). pp. 3210-3224. ISSN 0962-8436

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Abstract

We present results from the OP3 campaign in Sabah during 2008 that allow us to study the impact of local emission changes over Borneo on atmospheric composition at the regional and wider scale. OP3 constituent data provide an important constraint on model performance. Treatment of boundary layer processes is highlighted as an important area of model uncertainty. Model studies of land-use change confirm earlier work, indicating that further changes to intensive oil palm agriculture in South East Asia, and the tropics in general, could have important impacts on air quality, with the biggest factor being the concomitant changes in NOx emissions. With the model scenarios used here, local increases in ozone of around 50 per cent could occur. We also report measurements of short-lived brominated compounds around Sabah suggesting that oceanic (and, especially, coastal) emission sources dominate locally. The concentration of bromine in short-lived halocarbons measured at the surface during OP3 amounted to about 7 ppt, setting an upper limit on the amount of these species that can reach the lower stratosphere.

Item Type: Article
Journal or Publication Title: Philosophical Transactions B: Biological Sciences
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 58840
Deposited By: ep_importer_pure
Deposited On: 04 Oct 2012 11:36
Refereed?: Yes
Published?: Published
Last Modified: 10 Apr 2014 00:13
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/58840

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