The impact of the hexos programme

Smith, Stuart D.; Katsaros, Kristina B.; Oost, W.A.; Mestayer, P.G.

doi:10.1007/bf00122489

Cited by 31 publications

(3 citation statements)

References 52 publications

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“…The discussion on the parameterizations is particularly interesting for heat fluxes because the previous analysis showed they are the most reliable fluxes obtained by ECM on a large vessel. Moreover, the heat coefficients are not as well documented in the literature as the drag coefficients [see the review in Smith et al , 1996]. Also, the efficiency of the exchange for different stratifications is still controversial [ Oost et al , 2000].…”

Section: Exchange Parametersmentioning

confidence: 99%

Momentum and heat fluxes via the eddy correlation method on the R/V L'Atalante and an ASIS buoy

et al. 2003

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[1] In this paper, we present the results obtained with the eddy correlation method applied to data acquired during the Flux, Etat de mer et Télédetection en Condition de Fetch variable experiment onboard the R/V L'Atalante. We discuss the corrections made to account for platform motion and for the effects of mean airflow distortion. The data are compared to those obtained from a moored Air-Sea Interaction Spar (ASIS) buoy and from the L'Atalante using the inertial dissipation method (IDM). The main results from eddy correlation method on L'Atalante are that the momentum flux in-line with the mean wind, Àhu 0 w 0 i, is overestimated by 18%, likely due to turbulent flow distortion around the ship. In contrast, the results for heat flux do not appear to be contaminated by turbulent flow distortion. Indeed, heat fluxes obtained using the sonic temperature on the L'Atalante and the ASIS buoy are very similar. The eddy correlation latent heat fluxes obtained on the L'Atalante using a refractometer are significantly higher than those obtained from the same sensor using the IDM.

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Section: Exchange Parametersmentioning

confidence: 99%

Momentum and heat fluxes via the eddy correlation method on the R/V L'Atalante and an ASIS buoy

et al. 2003

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“…On the other hand, the rate of evaporation also increases with rising water temperatures and wind speed e.g. (DeCosmo et al 1996;Smith et al 1996). In this way, air continuously exchanges and equilibrates water vapor partial pressures and relative humidity acts as an interactive factor controlling both upward and downward directed water vapor fluxes (Kraus 1972;Yu 2007;Kolendowicz et al 2016;Szwejkowski et al 2017).…”

Section: Water Vapor Impact On Airborne Eddiesmentioning

confidence: 99%

Water Vapor Induced Airborne Rotational Features

Marks¹

2019

Meteorol. Hydrol. Water Manage.

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In order to study the rotational features induced by evaporating water several laboratory experiments were conducted with airborne rotary detection discs made of absorbent cotton wool and ultralight polyurethane foam discs.Measurements indicated that water vapor develops and transits into the air an upwardly directed counterclockwise rotary motion in the Northern Hemisphere, and a clockwise motion in the Southern Hemisphere. Additionally, measurements of the thermal structure of the air/water interface indicated that evaporating water may gather rotational momentum in the warmer subsurface layer. The conducted observations suggest that the process of water evaporation may be based on the grouping of some coherently spiraling molecules in the liquid phase. The interacting molecules combine their partial rotational momentums, thus allowing the top molecule to transit via the surface tension microlayer and become airborne. At the moment of evaporation, the gathered rotational energy is taken over by the free bi-hydrogen rotor-arm of the evaporating molecule that starts to revolve. Next, the water vapor-induced rotational share of the kinetic energy is likely to be redistributed among other gaseous molecules and transferred into heat (during condensation) that further energizes the airborne convective loops. In order to confirm the rotary effects induced by water vapor, several field experiments were conducted with airborne rotary detection ribbons in the Northern Hemisphere. The observations confirmed that a more enhanced counterclockwise spiraling motion of air is found with air currents under atmospheric lows of a higher relative humidity, while weaker and clockwise directed rotary dominates under atmospheric highs.

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“…Nonuniqueness of the relationship between C D and wind speed for coastal waters is well known (Mahrt et al, 1996;Smith et al, 1996;Janssen, 1997;Vickers and Mahrt, 1997). Nonuniqueness of the relationship between C D and wind speed for coastal waters is well known (Mahrt et al, 1996;Smith et al, 1996;Janssen, 1997;Vickers and Mahrt, 1997).…”

Section: Wind-related Turbulencementioning

confidence: 99%

The Production of Trace Gases in the Estuarine and Coastal Environment

Upstill‐Goddard

2011

Treatise on Estuarine and Coastal Science

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The impact of the hexos programme

Cited by 31 publications

References 52 publications

Momentum and heat fluxes via the eddy correlation method on the R/V L'Atalante and an ASIS buoy

Momentum and heat fluxes via the eddy correlation method on the R/V L'Atalante and an ASIS buoy

Water Vapor Induced Airborne Rotational Features

The Production of Trace Gases in the Estuarine and Coastal Environment

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