Original paper

Structure parameters for temperature and humidity from simultaneous eddy-covariance and scintillometer measurements

Beyrich, Frank; Kouznetsov, Rostislav D.; Leps, Jens-Peter; Lüdi, Andreas; Meijninger, Wouter M.L.; Weisensee, Ulrich

Meteorologische Zeitschrift Vol. 14 No. 5 (2005), p. 641 - 649

published: Oct 10, 2005

DOI: 10.1127/0941-2948/2005/0064

BibTeX file

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Line-averaged values of the structure parameters of temperature and humidity, C2T and C2q, were estimated from simultaneous measurements with an optical and a microwave scintillometer over a path of 4.7 km length at the Meteorological Observatory Lindenberg during the LITFASS-2003 experiment. By cross-correlating the detected signals of the two scintillometers, the temperature-humidity structure parameter, CTq, and the temperature-humidity correlation, rTq, were also derived directly from the measurements. Comparison with corresponding values obtained from local measurements with an eddy-covariance system on a meteorological tower show a consistent behaviour in time (with some exceptions especially for C2q and rTq during nighttime). The deviations are of a magnitude between 20 % and 35 % of the typical daytime values of the structure parameters.