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STINHO – Structure of turbulent transport under inhomogeneous surface conditions – part 1: The micro-α scale field experiment

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A micrometeorological field experiment was performed within the frame of the -project (ructure of turbulent transport under mogeneous conditions) at the boundary layer field site of the Meteorological Observatory Lindenberg of the German Meteorological Service (Deutscher Wetterdienst) in the summer of 2002 in order to investigate the interaction of thermally heterogeneous surfaces with the turbulent atmosphere. The intention was to compare conventional meteorological point and vertically integrated measurements with area-covering air flow observations and numerical simulations. To observe horizontally variable flow and temperature fields above a heterogeneous land surface, simultaneous acoustic methods (travel time tomography), optical observation methods (IR-camera and line-integrated scintillometer-measurements), as well as the airborne measurement system Helipod were used. The data set will be applied in future to validate large-eddy simulations adjusted to the area of investigation.

Im Rahmen des STINHO Projektes (Struktur des turbulenten Transportes über inhomogener Unterlage) wurde im Sommer 2002 auf dem Gelände des Grenzschichtmessfeldes des Meteorologischen Observatoriums Lindenberg ein mikrometeorologisches Feldexperiment durchgeführt, um die Wechselwirkung thermisch heterogener Oberflächen mit der turbulenten Atmosphäare zu untersuchen. Ein Ziel war es, konventionelle meteorologische Punktmessungen und vertikal integrierende Messungen mit fläachendeckenden Sondierungen des Temperatur- und Windfeldes sowie numerischen Simulationen zu vergleichen. Zur Beobachtung dieser horizontal variablen Felder über einer heterogenen Landschaft wurden gleichzeitig akustische Methoden (Laufzeittomographie), optische Beobachtungsverfahren (Infrarotkamera und Scintillometer) sowie fluggestützte Beobachtungssysteme (Helipod) eingesetzt. Die in diesem Experiment gewonnenen Daten sollen in Zukunft mit an die Bedingungen des Untersuchungsgebietes angepassten Large-Eddy Simulationen verglichen werden.

Document Type: Research Article


Publication date: 2005-06-01

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