Thomas Pugh
Universitetslektor
The impact of local surface changes in Borneo on atmospheric composition at wider spatial scales : Coastal processes, land-use change and air quality
Författare
Summary, in English
We present results fromtheOP3 campaign in Sabah during 2008 that allowus to study the impact of localemission changes over Borneo on atmospheric composition at the regional andwider scale. OP3 constituentdata provide an important constraint onmodel performance. Treatment of boundary layer processes is highlighted as an important area of model uncertainty.Model studies of land-use change confirm earlierwork, indicating that further changes to intensive oil palm agriculture in South EastAsia, and the tropics ingeneral, could have important impacts on air quality, with the biggest factor being the concomitantchanges in NOx emissions. With the model scenarios used here, local increases in ozone of around 50per cent could occur. We also report measurements of short-lived brominated compounds aroundSabah suggesting that oceanic (and, especially, coastal) emission sources dominate locally. The concentrationof bromine in short-lived halocarbons measured at the surface during OP3 amounted to about7 ppt, setting an upper limit on the amount of these species that can reach the lower stratosphere.
Publiceringsår
2011-11-27
Språk
Engelska
Sidor
3210-3224
Publikation/Tidskrift/Serie
Philosophical Transactions of the Royal Society B: Biological Sciences
Volym
366
Issue
1582
Dokumenttyp
Artikel i tidskrift
Förlag
Royal Society Publishing
Ämne
- Environmental Sciences
Nyckelord
- Atmospheric modeling
- Biogenic organic compounds
- Isoprene
- Rainforest
- Tropospheric ozone
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 0962-8436