Markus Hehn's research while affiliated with Technische Universität Dresden and other places
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Publications (5)
Breite Waldstreifen beeinflussen signifikant den Energieaustausch zwischen Atmosphäre und Unterlage und damit das Mikroklima eines Gebietes. Ein verändertes Strömungs- und Tempera-turfeld wirkt sich z.B. auf die Frostgefährdung landwirtschaftlicher Kulturen oder den Lärm-schutz in der Nähe von Waldgebieten aus. Für die Beratung zu einer zielführend...
The eddy-covariance (EC) method can provide information about turbulent fluxes of energy and greenhouse gases (GHG) accurately if all necessary corrections and conversions are applied to the measured raw data and all boundary conditions for the method are satisfied. Nevertheless and even in flat terrain, advection can occur leading to a closing gap...
The low-frequency sound propagation was investigated at a clearing and an adjacent forest stand at the meteorological Anchor Station Tharandter Wald near Dresden (Germany) using measurements and simple models. Thereby, the sound propagation is dependent on the distance to the sound source as well as on the acoustic properties of the ground surface...
![Figure 3a. Contour lines: Air temperature [K] on the 03.09., 14:00...](profile/Astrid-Ziemann/publication/261637700/figure/fig2/AS:392395704291349@1470565834968/a-Contour-lines-Air-temperature-K-on-the-0309-1400-local-time-HIRVAC-2-D_Q320.jpg)
Using measurements and simple models the low-frequency sound propagation was investigated at a clearing and adjacent forest stand at the meteorological Anchor Station Tharandter Wald near Dresden (Germany). Particular attention was paid to the meteorological influence on the sound immission at one location because the modified meteorological regime...
Citations
... Over the course of the day, results indicate that 2.4 % more noise is generated in the morning and midday than in the afternoon, due to the fact that humid air, which is greater in the morning, has a greater number of molecules that propagate sound (Ziemann, Barth, & Hehn, 2013). ...
![[object Object]](https://i1.rgstatic.net/ii/profile.image/272745724379165-1442039056641_Q64/Astrid-Ziemann.jpg)
