Turbulent Transport and Evaporation of Droplets Generated at an Air-Water Interface

Mestayer, P.G.; Edson, James B.; Fairall, C. W.; Larsen, Søren Ejling; Spiel, Donald E.

doi:10.1007/978-3-642-73948-4_13

Cited by 21 publications

(9 citation statements)

References 25 publications

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“…Modelers of the air-sea interaction process, for example, require a knowledge. of the number and size distribution, as well as the initial velocities, of the droplets from single bursting bubbles (Burk, 1984;De Leeuw, 1987;Mestayer et al, 1989;Mestayer and Lefauconnier, 1988;Stramska, 1987;Rouault et al, 1991 ).…”

Section: Introductionmentioning

confidence: 99%

The sizes of the jet drops produced by air bubbles bursting on sea- and fresh-water surfaces

Spiel

1994

Tellus B: Chemical and Physical Meteorology

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The size distributions of the top 6 jet drops produced by air bubbles bursting on sea-and freshwater surfaces are presented for bubbles with radii from 350 to 1500 µm. There are no significant differences in the results between sea-and fresh-water. Except for the top drop, the size distributions are often bimodal. For the top jet drop, the dependence of the average droplet radius, Rd, on bubble radius, Rb, is given by the fit Rd= 0.0337 R ~-208 (µm) which compares well with the results for the top drop reported by Blanchard in 1989. Excluding the droplets in the small modes, the droplet size dependence on bubble size for the lower droplets (those subsequent to the top drop) is, within statistical certainty, the same for all the droplets from the second through the fifth. The data for these droplets is fit by Rd= 0.0165 R ~- 325 • The probability that a bubble with a given radius produces at least n drops is given for n up to 7, although a small number of bubble bursts were observed to have produced at least 15 jet droplets.

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Section: Introductionmentioning

confidence: 99%

The sizes of the jet drops produced by air bubbles bursting on sea- and fresh-water surfaces

Spiel

1994

Tellus B: Chemical and Physical Meteorology

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“…[5][6][7][8] This has been verified by laboratory experiments that revealed the occurrence of strong gradients below 1 m height. 9,10 For ocean conditions, however, the vertical aerosol profiles measured by De Leeuw 11,12 clearly show that particle concentrations do not always decrease with height and that the gradients are weaker than expected near the ocean surface. 13 De Leeuw observed a minimum in the concentration profiles at 0.2 to 0.5 m height, probably due to the limited ejection height of the droplets, and a maximum near 2 m height in the concentration profiles of giant particles (dϾ10 m) for high wind speeds.…”

Section: Introductionmentioning

confidence: 88%

Vertical variation of extinction and atmospheric transmission due to aerosol particles close above the sea surface in the Mediterranean coastal zone

Piazzola

Despiau

1998

Opt. Eng

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The vertical variation of extinction and backscatter in the lowest part of the atmospheric mixed layer is of considerable interest for the assessment of the performance of electro-optical systems, but is poorly known. Our purpose is to estimate the vertical variation of extinction and atmospheric transmission due to aerosol particles near the air-sea interface. Atmospheric extinction coefficients in the 3-to 5-and 8-to 12-m IR bands calculated using vertical aerosol distributions measured in the Mediterranean coastal zone are presented. The data reveal a negative extinction gradient between 1 and 2 to 3 m height during winds of marine origin lower than 9 m/s, whereas a positive gradient occurs between 1 and 2 to 3 m height during high-wind-speed periods (Vу9 m/s). A positive extinction gradient is also noted for vertical profiles recorded during moderate continental winds. These extinction gradients result in a relative difference in atmospheric transmission between two sample heights that reach 60% in both the 3-to 5-and 8-to 12-m bands for an optical path of 10 km during high-wind-speed periods. These observed differences cannot be explained by current models to predict the vertical aerosol distribution.

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“…In the 1985 HEXIST Experiments a small aerated area simulated a plume from a single breaking wave (Mestayer and Lefauconnier, 1988;Mestayer et al, 1989a). In the 1988 CLUSE Experiments an array of bubblers created a horizontally homogeneous source of droplets.…”

Section: Laboratory Simulationexperimentsmentioning

confidence: 99%

“…In 198.5 the HEXIST (Humidity Exchange in a Simulation Tunnel) Experiment, at the Grande Soufflerie of the Institut de Mecanique Statistique de la Turbulence (IMST) near Marseilles, France, investigated interaction of artificially generated spray with temperature and humidity over waves (Mestayer and Lefauconnier, 1988;Mestayer et al, 1989a). this was followed by a series of CLUSE (Couche Limite Unidimensionelle Stationnaire d'Embruns; One Dimensional Stationary Spray Boundary Layer) experiments in which an array of bubblers generated a uniform droplet source.…”

Section: Introductionmentioning

confidence: 99%

The impact of the hexos programme

Smith

Katsaros

Oost

et al. 1996

Boundary-Layer Meteorol

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In HEXOS, aprogramme of coordinated laboratory, field andmodel studies, an international group of participants has extended the range of measurements of evaporation from the sea and has investigated the role of droplets in the transfer of water to the atmosphere. Predictions of a rapid rise in the evaporation coefficient at wind speeds above 15 m s-' have not been substantiated. Wind stress measurements showed a relationship with wave age. New methods were developed for coping with flow distortion.

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Turbulent Transport and Evaporation of Droplets Generated at an Air-Water Interface

Cited by 21 publications

References 25 publications

The sizes of the jet drops produced by air bubbles bursting on sea- and fresh-water surfaces

The sizes of the jet drops produced by air bubbles bursting on sea- and fresh-water surfaces

Vertical variation of extinction and atmospheric transmission due to aerosol particles close above the sea surface in the Mediterranean coastal zone

The impact of the hexos programme

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