Surface Ocean Aerosol Production (SOAP) Editor(s): C. Law, M. Harvey, M. Smith, P. Quinn, N. Harris, and M. Hoppema Special issue jointly organized between Atmospheric Chemistry and Physics and Ocean Science
Biologically-active regions of the surface ocean support production of a range of compounds that influence aerosol particle production, composition and properties in the overlying marine boundary layer. In February-March 2012 the SOAP (Surface Ocean Aerosol Production) voyage examined biotic influences on aerosol production to the east of New Zealand, by targeting phytoplankton blooms along the Sub-Tropical Front, with the aim of constraining the relationships between DMS and aerosol flux and characteristics, and phytoplankton biomass and community composition, by multi-disciplinary research within three workpackages:
- WP1. Surface ocean biogeochemical links with aerosol precursors;
- WP2. Exchange rate and physical drivers of the transfer of DMS & CO2 and
- WP3. Organic emissions, nucleation and interactions with the aerosol distribution in the overlying marine boundary layer.
The results of this research voyage will be detailed in this Special Issue, which will contain invited papers only.
Seasonal in situ observations of glyoxal and methylglyoxal over the temperate oceans of the Southern Hemisphere
Summary: Glyoxal and methylglyoxal are short-lived organic trace gases and important precursors of secondary organic aerosol. Measurements over oceans are sparse. We present the first in situ glyoxal and methylglyoxal observations over remote temperate oceans, alongside observations of precursor gases. Precursor gases cannot explain observed mixing ratios, highlighting an unknown source. We show a large discrepancy between calculated vertical column densities of glyoxal and those retrieved by satellite.
S. J. Lawson, P. W. Selleck, I. E. Galbally, M. D. Keywood, M. J. Harvey, C. Lerot, D. Helmig, and Z. Ristovski Atmos. Chem. Phys., 15, 223-240, 2015 AbstractFinal Revised Paper (PDF, 3239 KB)Discussion Paper (ACPD)