Search Results - "Wildmann, N."

Towards higher accuracy and better frequency response with standard multi-hole probes in turbulence measurement with remotely piloted aircraft (RPA) by Wildmann, N, Ravi, S, Bange, J

“…This study deals with the problem of turbulence measurement with small remotely piloted aircraft (RPA). It shows how multi-hole probes (MHPs) can be used to…”
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ALADINA – an unmanned research aircraft for observing vertical and horizontal distributions of ultrafine particles within the atmospheric boundary layer by Altstädter, B, Platis, A, Wehner, B, Scholtz, A, Wildmann, N, Hermann, M, Käthner, R, Baars, H, Bange, J, Lampert, A

“…This paper presents the unmanned research aircraft Carolo P360 "ALADINA" (Application of Light-weight Aircraft for Detecting IN situ Aerosol) for investigating…”
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Two fast temperature sensors for probing of the atmospheric boundary layer using small remotely piloted aircraft (RPA) by Wildmann, N, Mauz, M, Bange, J

“…Two types of temperature sensors are designed and tested: a thermocouple and a fine wire resistance thermometer. The intention of this study is to figure out…”
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An inverse-modelling approach for frequency response correction of capacitive humidity sensors in ABL research with small remotely piloted aircraft (RPA) by Wildmann, N, Kaufmann, F, Bange, J

“…The measurement of water vapour concentration in the atmosphere is an ongoing challenge in environmental research. Satisfactory solutions exist for…”
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THE PERDIGÃO: Peering into Microscale Details of Mountain Winds by Fernando, H. J. S., Mann, J., Palma, J. M. L. M., Lundquist, J. K., Barthelmie, R. J., Belo-Pereira, M., Brown, W. O. J., Chow, F. K., Gerz, T., Hocut, C. M., Klein, P. M., Leo, L. S., Matos, J. C., Oncley, S. P., Pryor, S. C., Bariteau, L., Bell, T. M., Bodini, N., Carney, M. B., Courtney, M. S., Creegan, E. D., Dimitrova, R., Gomes, S., Hagen, M., Hyde, J. O., Kigle, S., Krishshnamurthy, R., Lopes, J. C., Mazzaro, L., Neher, J. M. T., Menke, R., Murphy, P., Oswald, L., Otarola-Bustos, S., Pattantyus, A. K., Rodrigues, C. Veiga, Schady, A., Sirin, N., Spuler, S., Svensson, E., Tomaszewski, J., Turner, D. D., van Veen, L., Vasiljević, N., Vasssallo, D., Voss, S., Wildmann, N., Wang, Y.

“…A grand challenge from the wind energy industry is to provide reliable forecasts on mountain winds several hours in advance at microscale (∼100 m) resolution…”
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Effectiveness of the MFAS Method for Determining the Wind Velocity Vector from Windcube 200s Lidar Measurements by Stephan, A., Wildmann, N., Smalikho, I. N.

“…The technique of the maximum of the function of accumulated spectra (MFAS) is used for the first time for estimating the wind velocity vector from measurements…”
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MASC – a small Remotely Piloted Aircraft (RPA) for wind energy research by Wildmann, N, Hofsäß, M, Weimer, F, Joos, A, Bange, J

“…Originally designed for atmospheric boundary layer research, the MASC (Multipurpose Airborne Sensor Carrier) RPA (Remotely Piloted Aircraft, also known as…”
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Towards vertical wind and turbulent flux estimation with multicopter uncrewed aircraft systems by Wildmann, Norman, Wetz, Tamino

“…Vertical wind velocity and its fluctuations are essential parameters in the atmospheric boundary layer (ABL) to determine turbulent fluxes and scaling…”
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Long-term simulation of the boundary layer flow over the double-ridge site during the Perdigão 2017 field campaign by Wagner, Johannes, Gerz, Thomas, Wildmann, Norman, Gramitzky, Kira

“…The Perdigão campaign 2017 was an international field campaign to measure the flow and its diurnal variation in the atmospheric boundary layer over complex…”
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Distributed wind measurements with multiple quadrotor unmanned aerial vehicles in the atmospheric boundary layer by Wetz, Tamino, Wildmann, Norman, Beyrich, Frank

“…In this study, a fleet of quadrotor unmanned aerial vehicles (UAVs) is presented as a system to measure the spatial distribution of atmospheric boundary layer…”
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High-resolution wind speed measurements with quadcopter uncrewed aerial systems: calibration and verification in a wind tunnel with an active grid by Kistner, Johannes, Neuhaus, Lars, Wildmann, Norman

“…As a contribution to closing observational gaps in the atmospheric boundary layer (ABL), the Simultaneous Wind measurement with Uncrewed Flight Systems in 3D…”
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Wind turbine wake measurements with automatically adjusting scanning trajectories in a multi-Doppler lidar setup by Wildmann, Norman, Vasiljevic, Nikola, Gerz, Thomas

“…In the context of the Perdigão 2017 experiment, the German Aerospace Center (DLR) deployed three long-range scanning Doppler lidars with the dedicated purpose…”
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Multi-point in situ measurements of turbulent flow in a wind turbine wake and inflow with a fleet of uncrewed aerial systems by Wetz, Tamino, Wildmann, Norman

“…The demand on wind energy for power generation will increase significantly in the next decade due to the transformation towards renewable energy production. In…”
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Towards improved turbulence estimation with Doppler wind lidar velocity-azimuth display (VAD) scans by Wildmann, Norman, Päschke, Eileen, Roiger, Anke, Mallaun, Christian

“…The retrieval of turbulence parameters with profiling Doppler wind lidars (DWLs) is of high interest for boundary layer meteorology and its applications. DWLs…”
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Estimating CH4, CO2 and CO emissions from coal mining and industrial activities in the Upper Silesian Coal Basin using an aircraft-based mass balance approach by Fiehn, Alina, Kostinek, Julian, Eckl, Maximilian, Klausner, Theresa, Gałkowski, Michał, Chen, Jinxuan, Gerbig, Christoph, Röckmann, Thomas, Maazallahi, Hossein, Schmidt, Martina, Korbeń, Piotr, Neçki, Jarosław, Jagoda, Pawel, Wildmann, Norman, Mallaun, Christian, Bun, Rostyslav, Anna-Leah Nickl, Jöckel, Patrick, Fix, Andreas, Roiger, Anke

“…A severe reduction of greenhouse gas emissions is necessary to reach the objectives of the Paris Agreement. The implementation and continuous evaluation of…”
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Estimation of turbulence dissipation rate from Doppler wind lidars and in situ instrumentation for the Perdigão 2017 campaign by Wildmann, Norman, Bodini, Nicola, Lundquist, Julie K., Bariteau, Ludovic, Wagner, Johannes

“…The understanding of the sources, spatial distribution and temporal variability of turbulence in the atmospheric boundary layer, and improved simulation of its…”
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Estimating Upper Silesian coal mine methane emissions from airborne in situ observations and dispersion modeling by Kostinek, Julian, Roiger, Anke, Eckl, Maximilian, Fiehn, Alina, Luther, Andreas, Wildmann, Norman, Klausner, Theresa, Fix, Andreas, Knote, Christoph, Stohl, Andreas, Butz, André

“…Abundant mining and industrial activities located in the Upper Silesian Coal Basin (USCB) lead to large emissions of the potent greenhouse gas (GHG) methane…”
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Quantification of CH4 coal mining emissions in Upper Silesia by passive airborne remote sensing observations with the Methane Airborne MAPper (MAMAP) instrument during the CO2 and Methane (CoMet) campaign by Krautwurst, Sven, Gerilowski, Konstantin, Borchardt, Jakob, Wildmann, Norman, Gałkowski, Michał, Swolkień, Justyna, Marshall, Julia, Fiehn, Alina, Roiger, Anke, Ruhtz, Thomas, Gerbig, Christoph, Necki, Jaroslaw, Burrows, John P, Fix, Andreas, Bovensmann, Heinrich

“…Methane (CH4) is the second most important anthropogenic greenhouse gas, whose atmospheric concentration is modulated by human-induced activities, and it has a…”
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The BLLAST field experiment: Boundary-Layer Late Afternoon and Sunset Turbulence by Lothon, M, Lohou, F, Pino, D, Couvreux, F, Pardyjak, E. R, Reuder, J, Vilà-Guerau de Arellano, J, Durand, P, Hartogensis, O, Legain, D, Augustin, P, Gioli, B, Lenschow, D. H, Faloona, I, Yagüe, C, Alexander, D. C, Angevine, W. M, Bargain, E, Barrié, J, Bazile, E, Bezombes, Y, Blay-Carreras, E, van de Boer, A, Boichard, J. L, Bourdon, A, Butet, A, Campistron, B, de Coster, O, Cuxart, J, Dabas, A, Darbieu, C, Deboudt, K, Delbarre, H, Derrien, S, Flament, P, Fourmentin, M, Garai, A, Gibert, F, Graf, A, Groebner, J, Guichard, F, Jiménez, M. A, Jonassen, M, van den Kroonenberg, A, Magliulo, V, Martin, S, Martinez, D, Mastrorillo, L, Moene, A. F, Molinos, F, Moulin, E, Pietersen, H. P, Piguet, B, Pique, E, Román-Cascón, C, Rufin-Soler, C, Saïd, F, Sastre-Marugán, M, Seity, Y, Steeneveld, G. J, Toscano, P, Traullé, O, Tzanos, D, Wacker, S, Wildmann, N, Zaldei, A

“…Due to the major role of the sun in heating the earth's surface, the atmospheric planetary boundary layer over land is inherently marked by a diurnal cycle…”
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Evaluation of a forest parameterization to improve boundary layer flow simulations over complex terrain. A case study using WRF-LES V4.0.1 by Quimbayo-Duarte, Julian, Wagner, Johannes, Wildmann, Norman, Gerz, Thomas, Schmidli, Juerg

“…We evaluate the influence of a forest parametrization on the simulation of the boundary layer flow over moderate complex terrain in the context of the Perdigão…”
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