TY - JOUR
T1 - Impact of an artificial surfactant release on air-sea gas fluxes during Deep Ocean Gas Exchange Experiment II
AU - Salter, M. E.
AU - Upstill-Goddard, R. C.
AU - Nightingale, P. D.
AU - Archer, S. D.
AU - Blomquist, B.
AU - Ho, D. T.
AU - Huebert, B.
AU - Schlosser, P.
AU - Yang, M.
PY - 2011
Y1 - 2011
N2 - During the 2007 UK SOLAS Deep Ocean Gas Exchange Experiment in the northeast Atlantic Ocean, we conducted the first ever study of the effect of a deliberately released surfactant (oleyl alcohol) on gas transfer velocities (kw) in the open ocean. Exchange rates were estimated with the 3He/SF6 dual tracer technique and from measured sea-to-air DMS fluxes and surface water concentrations. A total of seven kw estimates derived from 3He/SF6 were made, two of which were deemed to be influenced by the surfactant. These exhibited suppression from ∼5% to 55% at intermediate wind speeds (U10) in the range 7.2-10.7 m s-1. Similarly, kw determined from DMS data (kDMS) was also depressed by the surfactant; suppression ranged from ∼39% at 5.0 m s-1 to ∼24% at 10.8 m s-1. Surfactant thus has the potential to measurably suppress gas exchange rates even at moderate to high wind speeds.
AB - During the 2007 UK SOLAS Deep Ocean Gas Exchange Experiment in the northeast Atlantic Ocean, we conducted the first ever study of the effect of a deliberately released surfactant (oleyl alcohol) on gas transfer velocities (kw) in the open ocean. Exchange rates were estimated with the 3He/SF6 dual tracer technique and from measured sea-to-air DMS fluxes and surface water concentrations. A total of seven kw estimates derived from 3He/SF6 were made, two of which were deemed to be influenced by the surfactant. These exhibited suppression from ∼5% to 55% at intermediate wind speeds (U10) in the range 7.2-10.7 m s-1. Similarly, kw determined from DMS data (kDMS) was also depressed by the surfactant; suppression ranged from ∼39% at 5.0 m s-1 to ∼24% at 10.8 m s-1. Surfactant thus has the potential to measurably suppress gas exchange rates even at moderate to high wind speeds.
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U2 - 10.1029/2011JC007023
DO - 10.1029/2011JC007023
M3 - Article
AN - SCOPUS:81255211717
VL - 116
JO - Journal of Geophysical Research: Oceans
JF - Journal of Geophysical Research: Oceans
SN - 2169-9275
IS - 11
M1 - C11016
ER -