Journal article

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

Luo G, Yu F ...see all

Atmospheric Chemistry and Physics, vol. 10, issue 4 (2010) pp. 2007-2015

  • 22

    Readers

    Mendeley users who have this article in their library.
  • N/A

    Citations

    Citations of this article.
Sign in to save reference

Abstract

A numerical evaluation of global oceanic emissions

of -pinene and isoprene based on both “bottom-up”

and “top-down” methods is presented. We infer that the

global “bottom-up” oceanic emissions of -pinene and isoprene

are 0.013 TgC yr−1 and 0.32 TgC yr−1, respectively.

By constraining global chemistry model simulations with the

shipborne measurement of Organics over the Ocean Modifying

Particles in both Hemispheres summer cruise, we

derived the global “top-down” oceanic -pinene source of

29.5 TgC yr−1 and isoprene source of 11.6 TgC yr−1. Both

the “bottom-up” and “top-down” values are subject to large

uncertainties. The incomplete understanding of the in-situ

phytoplankton communities and their range of emission potentials

significantly impact the estimated global “bottomup”

oceanic emissions, while the estimated total amounts

of the global “top-down” oceanic sources can be influenced

by emission parameterizations, model and input data spatial

resolutions, boundary layer mixing processes, and the treatments

of chemical reactions. The global oceanic -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

of carrying out further research (especially measurements)

to resolve the large offset in the derived oceanic organic

emission based on two different approaches.

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Authors

  • G Luo

  • F Yu

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free