Articles | Volume 15, issue 1
Research article
 | Highlight paper
12 Jan 2015
Research article | Highlight paper |  | 12 Jan 2015

Seasonal in situ observations of glyoxal and methylglyoxal over the temperate oceans of the Southern Hemisphere

S. J. Lawson, P. W. Selleck, I. E. Galbally, M. D. Keywood, M. J. Harvey, C. Lerot, D. Helmig, and Z. Ristovski


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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Sarah Lawson on behalf of the Authors (16 Nov 2014)  Author's response    Manuscript
ED: Publish as is (25 Nov 2014) by Patricia Quinn
Short 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.
Final-revised paper