Results 31 to 40 of about 12,338 (223)

An LES-based airborne Doppler lidar simulator and its application to wind profiling in inhomogeneous flow conditions [PDF]

Atmospheric Measurement Techniques, 2020
Wind profiling by Doppler lidar is common practice and highly useful in a wide range of applications. Airborne Doppler lidar can provide additional insights relative to ground-based systems by allowing for spatially distributed and targeted measurements.
P. Gasch, A. Wieser, J. K. Lundquist, J. K. Lundquist, N. Kalthoff   +4 more
doaj   +1 more source

Design of a Data Acquisition, Correction and Retrieval of Na Doppler Lidar for Diurnal Measurement of Temperature and Wind in the Mesosphere and Lower Thermosphere Region

Remote Sensing, 2023
Based on the resonance fluorescence scattering mechanism, a narrowband sodium (Na) lidar can measure temperature and wind in the mesosphere and lower thermosphere (MLT) region.
Yuan Xia, Xuewu Cheng, Zelong Wang, Linmei Liu, Yong Yang, Lifang Du, Jing Jiao, Jihong Wang, Haoran Zheng, Yajuan Li, Faquan Li, Guotao Yang   +11 more
doaj   +1 more source

Depiction of complex airflow near Hong Kong International Airport using a Doppler LIDAR with a two-dimensional wind retrieval technique

Meteorologische Zeitschrift, 2007
The Hong Kong Observatory (HKO) operates a Doppler LIght Detection And Ranging (LIDAR) system at the Hong Kong International Airport (HKIA) to monitor the airflow around the airport area. The LIDAR measures the radial component of the wind field.
Pak Wai Chan, Ai Mei Shao
doaj   +1 more source

Assessment of Surface-Layer Coherent Structure Detection in Dual-Doppler Lidar Data Based on Virtual Measurements [PDF]

, 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 wind-field components.
Knigge, Christoph, Kottmeier, Christoph, Raasch, Siegfried, Stawiarski, Christina, Träumner, Katja   +4 more
core   +3 more sources

Wind Coherence Measurement by a Single Pulsed Doppler Wind Lidar

Energy Procedia, 2016
AbstractA single pulsed Doppler wind lidar, deployed at the FINO1 platform in the North Sea, has been used to monitor the lateral and vertical coherence of the along-wind component. To maximize the sampling frequency of the monitoring system, a particular configuration based on small sweeping angles around the mean wind direction is used.
Cheynet, Etienne Francois Cyprien, Jakobsen, Jasna Bogunovic, Svardal, Benny, Reuder, Joachim, Kumer, Valerie-Marie   +4 more
openaire   +4 more sources

ESA’s spaceborne lidar mission ADM-Aeolus; project status and preparations for launch

EPJ Web of Conferences, 2018
ESA’s Doppler Wind lidar mission, the Atmospheric Dynamics Mission (ADM-Aeolus, hereafter abbreviated to Aeolus), was chosen as an Earth Explorer Core mission within the Living Planet Programme in 1999.
Straume Anne Grete, Elfving Anders, Wernham Denny, de Bruin Frank, Kanitz Thomas, Schuettemeyer Dirk, Bismarck Jonas von, Buscaglione Fabio, Lecrenier O., McGoldrick Phil   +9 more
doaj   +1 more source

Offshore wind farm global blockage measured with scanning lidar [PDF]

Wind Energy Science, 2021
The objective of this paper was the experimental investigation of the accumulated induction effect of a large offshore wind farm as a whole, i.e. the global-blockage effect, in relation to atmospheric-stability estimates and wind farm operational states.
J. Schneemann, F. Theuer, A. Rott, M. Dörenkämper, M. Kühn   +4 more
doaj   +1 more source

Monitoring Dust Events Using Doppler Lidar and Ceilometer in Iceland

Atmosphere, 2020
Ground-based lidars and ceilometers are widely used for dust and volcanic ash observation around the world. This is particularly interesting in Iceland where high-altitude dust events occur frequently during strong wind conditions and volcanic eruptions.
Shu Yang, Jana Preißler, Matthias Wiegner, Sibylle von Löwis, Guðrún Nína Petersen, Michelle Maree Parks, David Christian Finger   +6 more
doaj   +1 more source

Initial Assessment of the Performance of the First Wind Lidar in Space on Aeolus [PDF]

EPJ Web of Conferences, 2020
Soon after its successful launch in August 2018, the spaceborne wind lidar ALADIN (Atmospheric LAser Doppler INstrument) on-board ESA’s Earth Explorer satellite Aeolus has demonstrated to provide atmospheric wind profiles on a global scale.
Reitebuch Oliver, Lemmerz Christian, Lux Oliver, Marksteiner Uwe, Rahm Stephan, Weiler Fabian, Witschas Benjamin, Meringer Markus, Schmidt Karsten, Huber Dorit, Nikolaus Ines, Geiss Alexander, Vaughan Michael, Dabas Alain, Flament Thomas, Stieglitz Hugo, Isaksen Lars, Rennie Michael, de Kloe Jos, Marseille Gert-Jan, Stoffelen Ad, Wernham Denny, Kanitz Thomas, Straume Anne-Grete, Fehr Thorsten, von Bismarck Jonas, Floberghagen Rune, Parrinello Tommaso   +27 more
doaj   +1 more source

Application of coherent lidar technique: Water vapor DIAL and data assimilation for three-dimensional wind flow reconstructions [PDF]

EPJ Web of Conferences
We recently expanded the wind sensing coherent Doppler lidar (CDL) technologies to the coherent differential absorption lidar (DIAL) and data assimilation with computational fluid dynamics (CFD) simulation.
Imaki Masaharu
doaj   +1 more source