Skip to content

A numerical evaluation of global oceanic emissions of alpha-pinene and isoprene

by G Luo, F Yu
Atmospheric Chemistry and Physics ()
Get full text at journal


A numerical evaluation of global oceanic emissions\n\nof -pinene and isoprene based on both “bottom-up”\n\nand “top-down” methods is presented. We infer that the\n\nglobal “bottom-up” oceanic emissions of -pinene and isoprene\n\nare 0.013 TgC yr−1 and 0.32 TgC yr−1, respectively.\n\nBy constraining global chemistry model simulations with the\n\nshipborne measurement of Organics over the Ocean Modifying\n\nParticles in both Hemispheres summer cruise, we\n\nderived the global “top-down” oceanic -pinene source of\n\n29.5 TgC yr−1 and isoprene source of 11.6 TgC yr−1. Both\n\nthe “bottom-up” and “top-down” values are subject to large\n\nuncertainties. The incomplete understanding of the in-situ\n\nphytoplankton communities and their range of emission potentials\n\nsignificantly impact the estimated global “bottomup”\n\noceanic emissions, while the estimated total amounts\n\nof the global “top-down” oceanic sources can be influenced\n\nby emission parameterizations, model and input data spatial\n\nresolutions, boundary layer mixing processes, and the treatments\n\nof chemical reactions. The global oceanic -pinene\n\nsource and its impact on organic aerosol formation is significant\n\nbased on “top-down” method, but is negligible based on\n\n“bottom-up” approach. Our research highlights the importance\n\nof carrying out further research (especially measurements)\n\nto resolve the large offset in the derived oceanic organic\n\nemission based on two different approaches.

Cite this document (BETA)

Readership Statistics

18 Readers on Mendeley
by Discipline
50% Environmental Science
22% Chemistry
11% Agricultural and Biological Sciences
by Academic Status
44% Student > Ph. D. Student
28% Researcher
11% Student > Bachelor
by Country
6% South Africa

Sign up today - FREE

Mendeley saves you time finding and organizing research. Learn more

  • All your research in one place
  • Add and import papers easily
  • Access it anywhere, anytime

Start using Mendeley in seconds!

Sign up & Download

Already have an account? Sign in