Atmos. Chem. Phys. Discuss., 9, 20721-20738, 2009
www.atmos-chem-phys-discuss.net/9/20721/2009/
doi:10.5194/acpd-9-20721-2009
© Author(s) 2009. This work is distributed
under the Creative Commons Attribution 3.0 License.
Review Status
This discussion paper has been under review for the journal Atmospheric Chemistry and Physics (ACP). Please refer to the corresponding final paper in ACP.
A numerical evaluation of global oceanic emissions of α-pinene and isoprene
G. Luo and F. Yu
Atmospheric Sciences Research Center, State University of New York, 251 Fuller Road, Albany, New York 12203, USA

Abstract. A numerical evaluation of global oceanic emissions of α-pinene and isoprene based on both "bottom-up" and "top-down" methods is presented. As far as we know, this is the first quantification of global oceanic emission of α-pinene. We infer that the global "bottom-up" oceanic emissions of α-pinene and isoprene are 0.013 Tg C yr−1 and 0.32 Tg C yr−1, respectively. By constraining global chemistry model simulations with the shipboard measurement of Organics over the Ocean Modifying Particles in both Hemispheres summer cruise, we derived the global "top-down" oceanic α-pinene source of 35.1 Tg C yr−1 and isoprene source of 2.5 Tg C yr−1. The global oceanic α-pinene source and its impact on organic aerosol formation is significant based on "top-down" method, but is negligible based on "bottom-up" approach. Our research highlights the importance to carry out further research (especially measurements) to resolve the large offset in the derived oceanic organic emission based on two different approaches.

Citation: Luo, G. and Yu, F.: A numerical evaluation of global oceanic emissions of α-pinene and isoprene, Atmos. Chem. Phys. Discuss., 9, 20721-20738, doi:10.5194/acpd-9-20721-2009, 2009.
 
Search ACPD
Discussion Paper
XML
Citation
Final Revised Paper
Share