Atmospheric Chemistry and Physics Discussions www.atmos-chem-phys-discuss.net 1680-7367 1680-7375 7 5 2007 10.5194/acpd-7-13243-2007 http://www.atmos-chem-phys-discuss.net/7/13243/2007/ http://www.atmos-chem-phys-discuss.net/7/13243/2007/acpd-7-13243-2007.html http://www.atmos-chem-phys-discuss.net/7/13243/2007/acpd-7-13243-2007.pdf 13243 13269 2007-09-11 Eddy covariance measurements of sea spray particles over the Atlantic Ocean S. Norris s.norris@see.leeds.ac.uk I. Brooks G. de Leeuw M. H. Smith M. Moeman J. Lingard University of Leeds, Leeds, LS2 9JT, UK University of Helsinki, Dept. of Physical Sciences, Helsinki, Finland Finnish Meteorological Institute, Climate and Global Change Unit, Helsinki, Finland TNO, The Hague, The Netherlands 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 frequency measurements of aerosol concentration suitable for direct eddy correlation determination of the particle flux. This was accomplished in this study by combining a newly developed fast aerosol particle counter with an ultrasonic anemometer which allowed for eddy covariance measurements of size-segregated particle fluxes. The aerosol instrument is the Compact Lightweight Aerosol Spectrometer Probe (CLASP) – capable of measuring 8-channel size spectra for mean radii between 0.15 and 0.35 μm at 10 Hz. The first successful measurements were made during the WASFAB (Waves, Air Sea Fluxes, Aerosol and Bubbles) field campaign in October 2005 in Duck (NC, USA). The method and results are presented and comparisons are made with recent sea spray source functions from the literature. Andreas, E. L.: Sea spray and the turbulent air-sea heat fluxes, J. Geophys. Res., 97(C7), 11 429–11 441, 1992. Andreas, E. L.: A new Sea Spray Generation Function for Wind speeds up to 32 m s^−1, J. Phys. Oceanogr., 28(11), 2175–2184, 1998. Andreas, E. L.: A review of Sea Spray Generation Function for the Open Ocean, Atmos.-Ocean Interactions, 1, 1–46, 2002. Anguelova, M. D. and Webster, F.: Whitecap coverage from satellite measurements: A first step toward modeling the variability of oceanic whitecaps, J. Geophs. Res., 111, C03017, doi:10.1029/2005JC003158, 2006. Blanc, T. V.: The effects of inaccuracies in weather-ship data on bulk-derived estimates of flux, stability and sea-surface roughness, J. Atmos. Oceanic Technol., 3, 12–26, 1986. Blanchard, D. C.: The production, distribution, and bacterial enrichment of the sea-salt aerosol, The air-sea exchange of Gases and Particles, P.S. Liss and W.G.N. Slinn, D. Reidel, Norwell, Mass, 407–454, 1983. Blanchard, D. C. and Woodcock, A. H.: The production, concentration, and vertical distribution of the sea-salt aerosol, Annals of the New York Academy of Sciences, 338, 330–347, 1980. Buzorius, G., Rannk, U., Makela, J. M., Vesala, T., and Kulmala, M.: Vertical aerosols particles fluxes measured by eddy covariance technique using condensation particle counter, J. Aerosol Sci., 29(1/2), 157–171, 1998. Clarke, A. D., Owens, S. R., and Zhou, J.: An ultra fine sea -salt flux from breaking wave: Implications for cloud condensation nuclei in the remote marine atmosphere, J. Geophys. Res., 111, D06202, doi:10.1029/2005JD006565, 2006. Davis, C. N.: The entry of aerosols into sampling tubes and heads, British, J. Appl. Phys., 1(2), 921–932, 1968. De Leeuw, G., Neele, F. P., Hill, M., Smith, M. H., and Vignati, E.: Sea spray aerosol production by waves breaking in the surf zone, J. Geophys. Res., 105(D2), 29 397–29 409, 2000. De Leeuw, G., Moerman, M., Cohen, L., Brooks, B., Smith, M., and Vignati, E.: Aerosols, bubbles and sea spray production studies during the RED experiments, Proceedings AMS conference, Long Beach, CA, 9–13 Feb. 2003. De Leeuw, G., Moerman, M., Zappa, C. J., McGillis, W. R., Norris, S., and Smith, M.: Eddy Correlation Measurements of Sea Spray Aerosol Fluxes, in: Transport at the Air Sea Interface, edited by: Garbe, C. S., Handler, R. A., and Jähne, B., Springer-Verlag Berlin, Heidelberg, in press, 2007. Desjardins, R. L., Macpherson, J. I., Schuepp, P. H., and Karanja, F.: An Evaluation of Aircraft Flux Measurements of CO₂, Water Vapour and Sensible Heat, Boundary-Layer Meteorol., 47, 55–69, 1989. Fairall, C. W., Kerpert, J. D., and Holland, G. J.: The effects of Sea Spray on Surface Energy Transports over the Ocean, Global Atmos. Ocean Syst., 2, 121–142, 1994a. Fairall, C. W., Banner, M., Morison, R., and Persion, W.: Dependence of spray flux on breaking waves, Ocean Sciences Meeting of the American Geophysical Union, Honolulu, HI, February, 2006. Frederickson, A., Davidson, K. L., and Edson, J. B.: A study of Wind Stress Determination Methods from a Ship and an Offshore Tower, J. Atmos. Oceanic Technol., 14, 822–835, 1997. Friehe, C. A., Williams, E. R., Grossman, R.: An inter-comparison of two aircraft gust probe systems., Symposium on Lower Tropospheric Profiling: Needs and Technologies" Boulder, Colorado, American Meteorology Society, 1988. Gallagher, M. W., Beswick, K. M., Duyzer, J., Westrate, H., Choularton, T. W., and Hummelshoj, P.: Measurements of Aerosol fluxes to Speulder forest using a micrometeorological technique, Atmos. Environ., 31(3), 359–372, 1997. Geever, M., O'Dowd, C. D., van Ekeren, S., Flanagan, R., Nilsson, E. D., de Leeuw, G., and Rannik, U.: Submicron Sea Spray Fluxes, Geophys. Res. Lett., 32, L15810, doi:10.1029/2005GL023081, 2005. Haywood, J. M., Ramaswamy, V., and Soden, B. J.: Tropospheric aerosol climate forcing in clear-sky satellite observations over the oceans, Science, 238, 1299–1303, 1999. Hoppel, W. A., Cafferey, P. F., and Frick, G. M.: Particle deposition on water: Surface sources versus upwind sources, J. Geophys. Res., 110, D10206, doi:10.1029/2004JD005148, 2005. % %Hill, M., Brooks, B., Norris, S. J., Smith, M. H., De Leeuw, G., and Lingard, J.: A %novel high-temporal resolution particle spectrometer, J. Atmos. Ocean Technol., submitted\blackbox\bf status?, 2007. IPCC, 2001: Climate Change 2001: The Scientific Basis. Contribution of Working Group I to the Third Assessment Report of the Intergovernmental Panel on Climate Change, edited by: Houghton, J. T., Ding, Y., Griggs, D. J., Noguer, M., van der Linden, P. J., Dai, X., Maskell, K., and Johnson, C. A., Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA, 881pp. Kaimal, J. C. and Finnigan, J. J.: Atmospheric Boundary Layer flows: Their Structure and Measurement, Oxford University Press, 1994. Kiene, R. P.: Sulphar in the mix, Nature, 402, 363–364, 1999. Kristensen, L., Mann, J., Oncley, S. P., and Wyngaard, J. C.: How Close is Close Enough when Measuring Scalar Fluxes with Displaced Sensors?, J. Atmos. Oceanic Technol., 14, 814–821, 1997. Lewis, E. R. and Schwartz, S. E.: Sea Salt Aerosol Production – Mechanisms, Methods, Measurements, and Models, American Geophysical Union, 2004. Massman, W. J. and Lee, X.: Eddy covariance flux corrections and uncertainties in long term studies of carbon and energy exchanges, Agric. Forest Meteorol., 113, 121–144, 2002. Martensson, E. M., Nilsson, E. D., de Leeuw, G. Cohen, L. H., and Hansson, H. C.: Laboratory simulations and parameterization of the primary marine aerosol production, J. Geophys. Res.-Atmos., 108(D9), 4297, doi:10.1029/2002JD002263 , 2003. Monahan, E. C., Fairall, C. W., Davidson, K. L., Boyle, P. J.: Observed inter-relationships amongst 10 m-elevation winds, oceanic whitecaps, and marine aerosols, Quart. J. Roy. Meteorol. Soc., 109, 379–392, 1983. Monahan, E. C.: Oceanic Whitecaps: Sea Surface Features Detectable via Satellite that are Indicators of the Magnitude of the Air-sea Gas Transfer Coefficient, Procceeding of Indian Academic Science (Earth Planet Science) 111, 315–331, 2002. Monahan, E. C., Spiel, D. E., and Davidson, K. L.: A model of marine aerosol generation via whitecaps and wave disruption, Oceanic whitecaps, edited by: Monahan, E. C. and Mac Niocaill, G., D. Reidel Publishing Company, 167–174, 1986. Nilsson, E. D., Rannik, U., Swietlicki, E., Leck, C., Aalto, P. P., Zhou, J. and Norman, M.: Turbulent aerosol fluxes over the Arctic Ocean 2. Wind-driven sources from the sea, J. Geophys. Res.-Atmos., 106(D23), 32 139–32 154, 2001. O'Dowd, C. D., Lowe, J. A., and Smith, M. H.: Coupling of sea-salt and sulphate interactions and its impact on cloud droplet concentration predictions, Geophy. Res. Lett., 26(9), 1311–1314, 1999. O'Dowd, C. D. and de Leeuw, G.: Marine Aerosol Production: a review of the current knowledge, Phil. Trans. R. Soc. A, 365, 1753–1774, doi:10.1098/rsta.2007.2043, 2007. Reid, J. S., Jonsson, H. H., Smith, M. H., and Smirnov, A.: Evolution of the Vertical Profile and Flux of Large Sea-Salt Particles in a Coastal Zone, J. Geophys. Res.-Atmos., 106(D11), 12 039–12 053, 2001. Schulz, M., de Leeuw, G., and Balkanski, Y.: Sea-salt aerosol source functions and emissions, in Emissions of Atmospheric Trace Compounds, edited by: Granier, C., Artaxo, P., and Reeves, C., Kluwer, 2004, 333–359, 2004. Seinfeld, J. H. and Pandis, S. N.: Atmospheric Chemistry and Physics. From Air Pollution to Climate Change, John Wiley and Sons, Inc., 1997 Slinn, S. A. and Slinn, W. G. N.: Modelling of Atmospheric Particulate Deposition To Natural Waters, pp. 23–53. Atmospheric pollutants in natural waters, edited by: Eisenriech, S. J., Arbor Science, Michigan., 1981. Smith, M. H. and Harrison, N. M.: The Sea Spray Generation Function, J. Aerosol Sci., 29(supplement 1.), S189–S190, 1998. Smith, M. H., Park, P. M., and Consterdine, I. E.: Marine aerosol Concentrations and estimated fluxes over the sea, J. Royal Meteorol. Soc., 119, 809–824, 1993. Spiel, D. E.: On the births of film drops from bubbles bursting on seawater surfaces, J. Geophys. Res., 103(C11), 24 907–24 918, doi:10.1029/98JC02233, 1998. Stull, R. B.: An introduction to Boundary layer Meteorology, Kluwer Academic, San Diego, California, 1988. Vignati, E., de Leeuw, G., and Berkowicz, R.: Modeling coastal aerosol transport and effects of surf-produced aerosols on processes in the marine atmospheric boundary layer, J. Geophys. Res.-Atmos., 106(D17), 20 225–20 238, 2001. Woolf, D. K.: Parameterization of gas transfer velocities and sea-state-dependent wave breaking, Tellus, 57B, 87–94, 2005. Yelland M. J., Taylor, P. K., Consterdine, I. E., and Smith, M. H.: The use of Inertial Dissapation Technique for shipboard wind stress determination, J. Atmos. Oceanic Technol., 11, 1093–1108, 1994. Zappa, C. J., Tubiana, F. A., McGillis, W. R., Bent, J., de Leeuw, G., and Moerman, M. M.: Investigating wave processes important to air-sea fluxes using infrared techniques, Ocean Sciences Meeting of the American Geophysical Union, Honolulu, HI, February, 2006.