Articles | Volume 11, issue 1
https://doi.org/10.5194/os-11-111-2015
https://doi.org/10.5194/os-11-111-2015
Research article
 | 
26 Jan 2015
Research article |  | 26 Jan 2015

Comparative heat and gas exchange measurements in the Heidelberg Aeolotron, a large annular wind-wave tank

L. Nagel, K. E. Krall, and B. Jähne

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Cited articles

Asher, W. E., Jessup, A. T., and Atmane, M. A.: Oceanic application of the active controlled flux technique for measuring air-sea transfer velocities of heat and gases, J. Geophys. Res., 109, C08S12, https://doi.org/10.1029/2003JC001862, 2004.
Atmane, M. A., Asher, W., and Jessup, A. T.: On the use of the active infrared technique to infer heat and gas transfer velocities at the air-water free surface, J. Geophys. Res., 109, C08S14, https://doi.org/10.1029/2003JC001805, 2004.
Bopp, M.: Luft- und wasserseitige Strömungsverältnisse im ringförmigen Heidelberger Wind-Wellen-Kanal (Aeolotron), Masterarbeit, Institut für Umweltphysik, Universität Heidelberg, Germany, available at: http://www.ub.uni-heidelberg.de/archiv/17151 (last access: 23 January 2015), 2014.
Degreif, K.: Untersuchungen zum Gasaustausch – Entwicklung und Applikation eines zeitlich aufgelösten Massenbilanzverfahrens, Dissertation, Institut für Umweltphysik, Fakultät für Physik und Astronomie, Univ. Heidelberg, available at: http://www.ub.uni-heidelberg.de/archiv/6120 (last access: 23 January 2015), 2006.
Frew, N., Bock, E., Schimpf, U., Hara, T., Haussecker, H., Edson, J., McGillis, W., Nelson, R., McKenna, S., Uz, B., and Jähne, B.: Air-sea gas transfer: Its dependence on wind stress, small-scale roughness, and surface films, J. Geophys. Res., 109, C08S17, https://doi.org/10.1029/2003JC002131, 2004.
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Short summary
A comparative study of simultaneous heat and gas exchange measurements was performed in the large annular Heidelberg Air-Sea Interaction Facility, the Aeolotron, under homogeneous water surface conditions, including the measurement of the Schmidt number exponent. Provided the Schmidt number exponent is known and that the heated patch is large enough to reach the thermal equilibrium, it is possible to scale heat transfer velocities measured by active thermography to gas transfer velocities.