World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

Source Attribution of Bornean Air Masses by Back Trajectory Analysis During the Op3 Project : Volume 11, Issue 5 (18/05/2011)

By Robinson, N. H.

Click here to view

Book Id: WPLBN0003974015
Format Type: PDF Article :
File Size: Pages 70
Reproduction Date: 2015

Title: Source Attribution of Bornean Air Masses by Back Trajectory Analysis During the Op3 Project : Volume 11, Issue 5 (18/05/2011)  
Author: Robinson, N. H.
Volume: Vol. 11, Issue 5
Language: English
Subject: Science, Atmospheric, Chemistry
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2011
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

APA MLA Chicago

Allan, J. D., Irwin, M., Mills, G., Bower, K. N., Reeves, C. E., Robinson, N. H.,...Newton, H. M. (2011). Source Attribution of Bornean Air Masses by Back Trajectory Analysis During the Op3 Project : Volume 11, Issue 5 (18/05/2011). Retrieved from http://worldlibrary.org/


Description
Description: Centre for Atmospheric Science, University of Manchester, Manchester, UK. Atmospheric composition affects the radiative balance of the Earth through the creation of greenhouse gases and the formation of aerosols. The latter interact with incoming solar radiation, both directly and indirectly through their effects on cloud formation and lifetime. The tropics have a major influence on incoming sunlight however the tropical atmosphere is poorly characterised, especially outside Amazonia. The origins of air masses influencing a measurement site in a protected rainforest in Borneo, South East Asia, were assessed and the likely sources of a range of trace gases and particles were determined. This was conducted by interpreting in situ measurements made at the site in the context of ECMWF backwards air mass trajectories. Two different but complementary methods were employed to interpret the data: comparison of periods classified by cluster analysis of trajectories, and inspection of the dependence of mean measured values on geographical history of trajectories. Sources of aerosol particles, carbon monoxide and halocarbons were assessed. The likely source influences include: terrestrial organic biogenic emissions; long range transport of anthropogenic emissions; biomass burning; sulphurous emissions from marine phytoplankton, with a possible contribution from volcanoes; marine production of inorganic mineral aerosol; and marine production of halocarbons. Aerosol sub- and super-saturated water affinity was found to be dependent on source (and therefore composition), with more hygroscopic aerosol and higher numbers of cloud condensation nuclei measured in air masses of marine origin. The prevailing sector during the majority of measurements was south-easterly, which is from the direction of the coast closest to the site, with a significant influence inland from the south-west. This analysis shows that marine and terrestrial air masses have different dominant chemical sources. Comparison with the AMAZE-08 project in the Amazon basin shows Bornean composition to arise from a different, more complex mixture of sources. In particular sulphate loadings are much greater than in Amazonia which is likely to mainly be the result of the marine influence on the site. This suggests that the significant region of the tropics made up of island networks is not well represented by extrapolation from measurements made in the Amazon. In addition, it is likely that there were no periods where the site was influenced only by the rainforest, with even the most pristine inland periods showing some evidence of non-rainforest aerosol. This is in contrast to Amazonia which experienced periods dominated by rainforest emissions.

Summary
Source attribution of Bornean air masses by back trajectory analysis during the OP3 project

Excerpt
Alfarra, M. R., Prevot, A. S. H., Szidat, S., Sandradewi, J., Weimer, S., Lanz, V. A., Schreiber, D., Mohr, M., and Baltensperger, U.: Identification of the mass spectral signature of organic aerosols from wood burning emissions, Environ. Sci. Technol., 41, 5770–5777, doi:10.1021/es062289b, 2007.; Allan, J. D., Bower, K. N., Coe, H., Boudries, H., Jayne, J. T., Canagaratna, M. R., Millet, D. B., Goldstein, A., Quinn, P. K., Weber, R. J., and Worsnop, D. R.: Submicron aerosol composition at Trinidad Head, California, during ITCT 2K2: its relationship with gas phase volatile organic carbon and assessment of instrument performance, J. Geophys. Res., 109, D23S24, doi:10.1029/2003JD004208, 2004.; Allan, J. D., Topping, D. O., Good, N., Irwin, M., Flynn, M., Williams, P. I., Coe, H., Baker, A. R., Martino, M., Niedermeier, N., Wiedensohler, A., Lehmann, S., Müller, K., Herrmann, H., and McFiggans, G.: Composition and properties of atmospheric particles in the eastern Atlantic and impacts on gas phase uptake rates, Atmos. Chem. Phys., 9, 9299–9314, doi:10.5194/acp-9-9299-2009, 2009.; Allan, J. D., Williams, P. I., Morgan, W. T., Martin, C. L., Flynn, M. J., Lee, J., Nemitz, E., Phillips, G. J., Gallagher, M. W., and Coe, H.: Contributions from transport, solid fuel burning and cooking to primary organic aerosols in two UK cities, Atmos. Chem. Phys., 10, 647–668, doi:10.5194/acp-10-647-2010, 2010.; Allen, A. G., Oppenheimer, M. F., Baxter, P. J., Horrocks, L. A., Galle, B., McGonigle, A. J. S., and Duffell, H. J.: Primary sulfate aerosol and associated emissions from Masaya Volcano, Nicaragua, J. Geophys. Res., 107, 4682, doi:10.1029/2002JD002120, 2002.; Andreae, M. O., Berresheiem, H., Bingemer, H., Jacob, D. J., Lewis, B. L., Li, S.-M., and Talbot, R. W.: The atmospheric sulfur cycle over the Amazon Basin. II. Wet season, J. Geophys. Res., 95, 16813–16824, doi:10.1029/JD095iD10p16813, 1990.; Ashbaugh, L.: A residence time probability analysis of sulfur concentrations at grand Canyon National Park, Atmos. Environ., 19, 1263–1270, doi:10.1016/0004-6981(85)90256-2, 1985.; Avissar, R., Silva Dias, P., Silva Dias, M., and Nobre, C. A.: The Large-Scale Biosphere-Atmosphere Experiment in Amazonia (LBA): insights and future research needs, J. Geophys. Res., 107, 8086, doi:10.1029/2002JD002704, 2002.; British Atmospheric Data Centre: European Centre for Medium-Range Weather Forecasts back trajectories, \urlprefixhttp://badc.nerc.ac.uk/data/ecmwf-op/ (last access: January 2010), 20

 

Click To View

Additional Books


  • Three Years of Aerosol Mass, Black Carbo... (by )
  • Contribution of Gaseous and Particulate ... (by )
  • Ultrafine Particle Formation in the Inla... (by )
  • On the Quality of Mipas Kinetic Temperat... (by )
  • Parameterization of Middle Atmospheric W... (by )
  • Seasonal Variation of Aerosol Water Upta... (by )
  • Origin of Aerosol Particles in the Mid-l... (by )
  • Comment on Quantitative Performance Metr... (by )
  • Formulation and Test of an Ice Aggregati... (by )
  • Implementation and Testing of a Desert D... (by )
  • NoX Emissions in China: Historical Trend... (by )
  • Heterogeneous Conversion of No2 on Secon... (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from World Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.