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

被引:85
作者
Luo, G. [1 ]
Yu, F. [1 ]
机构
[1] SUNY Albany, Atmospher Sci Res Ctr, Albany, NY 12203 USA
关键词
SOUTHERN-OCEAN; AEROSOL; SEA;
D O I
10.5194/acp-10-2007-2010
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
A numerical evaluation of global oceanic emissions of alpha-pinene and isoprene based on both "bottom-up" and "top-down" methods is presented. We infer that the global "bottom-up" oceanic emissions of alpha-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 alpha-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 "bottom-up" 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 alpha-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.
引用
收藏
页码:2007 / 2015
页数:9
相关论文
共 26 条
[1]   Seasonal distribution and succession of dominant phytoplankton groups in the global ocean: A satellite view [J].
Alvain, S. ;
Moulin, C. ;
Dandonneau, Y. ;
Loisel, H. .
GLOBAL BIOGEOCHEMICAL CYCLES, 2008, 22 (03)
[2]   Evaluation of the global oceanic isoprene source and its impacts on marine organic carbon aerosol [J].
Arnold, S. R. ;
Spracklen, D. V. ;
Williams, J. ;
Yassaa, N. ;
Sciare, J. ;
Bonsang, B. ;
Gros, V. ;
Peeken, I. ;
Lewis, A. C. ;
Alvain, S. ;
Moulin, C. .
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2009, 9 (04) :1253-1262
[3]   Seasonal emissions of isoprene and other reactive hydrocarbon gases from the ocean [J].
Broadgate, WJ ;
Liss, PS ;
Penkett, SA .
GEOPHYSICAL RESEARCH LETTERS, 1997, 24 (21) :2675-2678
[4]   Marine aerosol chemistry gradients: Elucidating primary and secondary processes and fluxes [J].
Ceburnis, Darius ;
O'Dowd, Colin D. ;
Jennings, Gerard S. ;
Facchini, Maria Cristina ;
Emblico, Lorenza ;
Decesari, Stefano ;
Fuzzi, Sandro ;
Sakalys, Jonas .
GEOPHYSICAL RESEARCH LETTERS, 2008, 35 (07)
[5]   Global distribution and climate forcing of carbonaceous aerosols [J].
Chung, SH ;
Seinfeld, JH .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2002, 107 (D19) :AAC14-1
[6]   Mixed layer depth over the global ocean:: An examination of profile data and a profile-based climatology -: art. no. C12003 [J].
de Boyer Montégut, C ;
Madec, G ;
Fischer, AS ;
Lazar, A ;
Iudicone, D .
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, 2004, 109 (C12) :1-20
[7]   Correlations between the satellite-derived seasonal cycles of phytoplankton biomass and aerosol optical depth in the Southern Ocean: Evidence for the influence of sea ice [J].
Gabric, AJ ;
Shephard, JM ;
Knight, JM ;
Jones, G ;
Trevena, AJ .
GLOBAL BIOGEOCHEMICAL CYCLES, 2005, 19 (04)
[8]   A new physically-based quantification of marine isoprene and primary organic aerosol emissions [J].
Gantt, B. ;
Meskhidze, N. ;
Kamykowski, D. .
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2009, 9 (14) :4915-4927
[9]   Isoprene fluxes measured by enclosure, relaxed eddy accumulation, surface layer gradient, mixed layer gradient, and mixed layer mass balance techniques [J].
Guenther, A ;
Baugh, W ;
Davis, K ;
Hampton, G ;
Harley, P ;
Klinger, L ;
Vierling, L ;
Zimmerman, P ;
Allwine, E ;
Dilts, S ;
Lamb, B ;
Westberg, H ;
Baldocchi, D ;
Geron, C ;
Pierce, T .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1996, 101 (D13) :18555-18567
[10]   A large organic aerosol source in the free troposphere missing from current models [J].
Heald, CL ;
Jacob, DJ ;
Park, RJ ;
Russell, LM ;
Huebert, BJ ;
Seinfeld, JH ;
Liao, H ;
Weber, RJ .
GEOPHYSICAL RESEARCH LETTERS, 2005, 32 (18) :1-4