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

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 cro...

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Main Authors: Frank Beyrich, Rostislav D. Kouznetsov, Jens-Peter Leps, Andreas Lüdi, Wouter M.L. Meijninger, Ulrich Weisensee
Format: Article
Language:English
Published: Borntraeger 2005-10-01
Series:Meteorologische Zeitschrift
Online Access:http://dx.doi.org/10.1127/0941-2948/2005/0064
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author Frank Beyrich
Rostislav D. Kouznetsov
Jens-Peter Leps
Andreas Lüdi
Wouter M.L. Meijninger
Ulrich Weisensee
author_facet Frank Beyrich
Rostislav D. Kouznetsov
Jens-Peter Leps
Andreas Lüdi
Wouter M.L. Meijninger
Ulrich Weisensee
author_sort Frank Beyrich
collection DOAJ
description 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.
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spelling doaj.art-cac36f84cb2543f98b42ca41b17f7d5a2024-02-08T08:47:39ZengBorntraegerMeteorologische Zeitschrift0941-29482005-10-0114564164910.1127/0941-2948/2005/006454348Structure parameters for temperature and humidity from simultaneous eddy-covariance and scintillometer measurementsFrank BeyrichRostislav D. KouznetsovJens-Peter LepsAndreas LüdiWouter M.L. MeijningerUlrich WeisenseeLine-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.http://dx.doi.org/10.1127/0941-2948/2005/0064
spellingShingle Frank Beyrich
Rostislav D. Kouznetsov
Jens-Peter Leps
Andreas Lüdi
Wouter M.L. Meijninger
Ulrich Weisensee
Structure parameters for temperature and humidity from simultaneous eddy-covariance and scintillometer measurements
Meteorologische Zeitschrift
title Structure parameters for temperature and humidity from simultaneous eddy-covariance and scintillometer measurements
title_full Structure parameters for temperature and humidity from simultaneous eddy-covariance and scintillometer measurements
title_fullStr Structure parameters for temperature and humidity from simultaneous eddy-covariance and scintillometer measurements
title_full_unstemmed Structure parameters for temperature and humidity from simultaneous eddy-covariance and scintillometer measurements
title_short Structure parameters for temperature and humidity from simultaneous eddy-covariance and scintillometer measurements
title_sort structure parameters for temperature and humidity from simultaneous eddy covariance and scintillometer measurements
url http://dx.doi.org/10.1127/0941-2948/2005/0064
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