Extended Abstract (2.9M)12.4
Eddy correlation measurements of sea-spray aerosol fluxes during SEASAW
Sarah J. Norris, University of Leeds, Leeds, West Yorkshire, United Kingdom; and I. M. Brooks, M. Hill, B. J. Brooks, J. J. N. Lingard, B. I. Moat, M. J. Yelland, R. W. Pascal, M. A. Srokosz, and D. K. Woolf
Most estimates of sea spray aerosol source functions have used indirect means to infer the rate of production as a function of wind speed. Only recently has the technology become available to make high rate measurements of aerosol concentration suitable for direct eddy correlation determination of the particle flux. During SEASAW a new compact aerosol instrument (CLASP) was collocated with a sonic anemometer on the foremast of the RRS Discovery. CLASP produces a 16-channel aerosol size spectrum (0.15 < r < 3.5 micrometres) at a rate of 10 Hz, allowing the calculation of size segregated aerosol fluxes via eddy correlation. We present preliminary aerosol flux results from the field campaigns alongside estimates of the whitecap fraction, and compare them with sea spray source functions from the literature.
Session 12, In Situ Turbulent Air-Sea Flux Measurements
Thursday, 23 August 2007, 1:30 PM-3:00 PM, Broadway-Weidler-Halsey
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