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Atmospheric Measurement Techniques An interactive open-access journal of the European Geosciences Union

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Atmos. Meas. Tech., 9, 4375-4386, 2016
http://www.atmos-meas-tech.net/9/4375/2016/
doi:10.5194/amt-9-4375-2016
© Author(s) 2016. This work is distributed
under the Creative Commons Attribution 3.0 License.
Research article
06 Sep 2016
Turbulence fluxes and variances measured with a sonic anemometer mounted on a tethered balloon
Guylaine Canut1, Fleur Couvreux1, Marie Lothon2, Dominique Legain1, Bruno Piguet1, Astrid Lampert3, William Maurel1, and Eric Moulin1 1CNRM-GAME (Météo-France and CNRS), Toulouse, France
2Laboratoire d'Aerologie, University of Toulouse, CNRS, Toulouse, France
3Institute of Flight Guidance, TU Braunschweig, Hermann-Blenk-Str. 27, 38108 Braunschweig, Germany
Abstract. This study presents the first deployment in field campaigns of a balloon-borne turbulence probe, developed with a sonic anemometer and an inertial motion sensor suspended below a tethered balloon. This system measures temperature and horizontal and vertical wind at high frequency and allows the estimation of heat and momentum fluxes as well as turbulent kinetic energy in the lower part of the boundary layer. The system was validated during three field experiments with different convective boundary-layer conditions, based on turbulent measurements from instrumented towers and aircraft.

Citation: Canut, G., Couvreux, F., Lothon, M., Legain, D., Piguet, B., Lampert, A., Maurel, W., and Moulin, E.: Turbulence fluxes and variances measured with a sonic anemometer mounted on a tethered balloon, Atmos. Meas. Tech., 9, 4375-4386, doi:10.5194/amt-9-4375-2016, 2016.
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Short summary
Turbulent processes of the atmospheric boundary layer contribute the most to transfers between the surface and the atmosphere. Typically, turbulent boundary layer parameters are measured by sonic anemometers on masts and by research aircraft. This is to measure in situ turbulent parameters in the planetary boundary layer (PBL) at altitudes above 50 m. For this purpose, our team have developed a system under a tethered balloon which has been in use since 2010.
Turbulent processes of the atmospheric boundary layer contribute the most to transfers between...
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