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Areal-averaged trace gas emission rates from long-range open-path measurements in stable boundary layer conditions

Schäfer, K.; Grant, R.H.; Emeis, S.; Raabe, A.; Heide, Carolin von der; Schmid, H.P. (Göttingen : Copernicus GmbH, 2012)

Measurements of land-surface emission rates of greenhouse and other gases at large spatial scales (10 000 m2) are needed to assess the spatial distribution of emissions. This can be readily done using spatial-integrating ...
Assessment of Surface-Layer Coherent Structure Detection in Dual-Doppler Lidar Data Based on Virtual Measurements

Stawiarski, Christina; Träumner, Katja; Kottmeier, Christoph; Knigge, Christoph; Raasch, Siegfried (Berlin : Kluwer Academic Publishers, 2015)

Dual-Doppler lidar has become a useful tool to investigate the wind-field structure in two-dimensional planes. However, lidar pulse width and scan duration entail significant and complex averaging in the resulting retrieved ...
Large-Eddy Simulations of Surface Heterogeneity Effects on the Convective Boundary Layer During the LITFASS-2003 Experiment

Maronga, Björn; Raasch, Siegfried (Heidelberg : Springer Verlag, 2013)

We investigate the impact of observed surface heterogeneities during the LITFASS-2003 experiment on the convective boundary layer (CBL). Large-eddy simulations (LES), driven by observed near-surface sensible and latent ...
On the Discrepancy in Simultaneous Observations of the Structure Parameter of Temperature Using Scintillometers and Unmanned Aircraft

Braam, Miranda; Beyrich, Frank; Bange, Jens; Platis, Andreas; Martin, Sabrina; Maronga, Björn; Moene, Arnold F. (Dordrecht : Springer Netherlands, 2016)

We elaborate on the preliminary results presented in Beyrich et al. (in Boundary-Layer Meteorol 144:83–112, 2012), who compared the structure parameter of temperature (C2T) obtained with the unmanned meteorological mini ...
On the Effect of Surface Heat-Flux Heterogeneities on the Mixed-Layer-Top Entrainment

Sühring, Matthias; Maronga, Björn; Herbort, Florian; Raasch, Siegfried (Berlin : Kluwer Academic Publishers, 2014)

We used a set of large-eddy simulations to investigate the effect of one-dimensional stripe-like surface heat-flux heterogeneities on mixed-layer top entrainment. The profiles of sensible heat flux and the temporal evolution ...
On the range of boundary layer model results depending on inaccurate input data

Gross, Günter (Stuttgart : Gebrueder Borntraeger Verlagsbuchhandlung, 2019)

A one-dimensional boundary layer model was used to study the effects of uncertain input data on 2-m temperature and 10-m wind. Based on a very large number of numerical results, it can be demonstrated, that even a small ...
Scan strategies for wind profiling with Doppler lidar – an large-eddy simulation (LES)-based evaluation

Rahlves, Charlotte; Beyrich, Frank; Raasch, Siegfried (Katlenburg-Lindau : Copernicus, 2022)

Doppler-lidar scan techniques for wind profiling rely on the assumption of a horizontally homogeneous wind field and stationarity for the duration of the scan. As this condition is mostly violated in reality, detailed ...

Now showing items 1-7 of 7

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Browsing by Subject "wind velocity"

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