Results 31 to 40 of about 492 (181)

Spatial averaging-effects on turbulence measured by a continuous-wave coherent lidar

Meteorologische Zeitschrift, 2009
The influence of spatial volume averaging of a focused continuous-wave coherent Doppler lidar on observed wind turbulence in the atmospheric surface layer is described and analysed. For the first time, comparisons of lidar-measured turbulent spectra with
Mikael Sjöholm, Torben Mikkelsen, Jakob Mann, Karen Enevoldsen, Michael Courtney   +4 more
doaj   +1 more source

Simulation of the performance of spaceborne hybrid Doppler wind lidar [PDF]

EPJ Web of Conferences
Accurately measuring wind field is crucial for weather forecasting, climate and meteorological research, aeronautical flights and wind resource exploitation.
Long Wenrui, Dai Guangyao, Wu Songhua, Sun Kangwen, Zhai Xiaochun, Xu Na, Hu Xiuqing   +6 more
doaj   +1 more source

Climatology of Atmospheric Boundary Layer Height Over Nearshore and Open Ocean Regions of the Western North Pacific

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 20, 28 October 2026.
Abstract Atmospheric boundary layer height (ABLH) plays an important role in air–sea interactions and regional climate over the western North Pacific (WNP). Using ERA5 reanalysis data from 1979 to 2025, this paper investigates the interannual variability, monthly variations, and seasonal spatial patterns of ABLH.
Yucheng Xue, Qiusheng Li
wiley   +1 more source

Performance evaluation of an all-fiber image-reject homodyne coherent Doppler wind lidar [PDF]

Atmospheric Measurement Techniques, 2015
The main purpose of this study is to evaluate the near-zero wind velocity measurement performance of two separate 1.5 μm all-fiber coherent Doppler lidars (CDLs).
C. F. Abari, A. T. Pedersen, E. Dellwik, J. Mann   +3 more
doaj   +1 more source

Fire‐Atmosphere Coupling Starts Upwind: Selective Redistribution of Turbulence at the Fire‐Induced Rear Inflow

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 17, 16 September 2026.
Abstract Wildfires alter local atmospheric conditions, yet the spatial extent and frequency‐dependent characteristics of fire‐induced inflow perturbations remain largely unquantified. This study applies Multivariate Empirical Mode Decomposition (MEMD) to analyze high‐frequency horizontal wind speed data from a tower positioned at varying distances (∼80–
Gitesh Wasson, Marwan Katurji, Peyman Zawar‐Reza, Andres Valencia, Jiawei Zhang, Tara Strand, H. Grant Pearce, Jessica Kerr   +7 more
wiley   +1 more source

Lagrangian Coherent Structure Analysis of Terminal Winds: Three-Dimensionality, Intramodel Variations, and Flight Analyses

Advances in Meteorology, 2015
We present a study of three-dimensional Lagrangian coherent structures (LCS) near the Hong Kong International Airport and relate to previous developments of two-dimensional (2D) LCS analyses.
Brent Knutson, Wenbo Tang, Pak Wai Chan
doaj   +1 more source

Wind turbulence estimates in a valley by coherent Doppler lidar [PDF]

Meteorological Applications, 2011
AbstractIn this paper, the effect of several turbulence parameters during various flow conditions in Owens Valley, educed from coherent Doppler lidar data have been studied. Radial velocity structure functions are processed to estimate the turbulent kinetic energy (TKE) dissipation rate, integral length scale and velocity variance, assuming a ...
Raghavendra Krishnamurthy, Ronald Calhoun, Brian Billings, James Doyle   +3 more
openaire   +1 more source

Resolving Convective‐Scale Cloud and Precipitation Structures in Tropical Cyclone Rainbands With Novel Raman Lidar Observations

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 17, 16 September 2026.
Abstract Low‐level clouds in the tropical cyclone (TC) rainbands modulate the radial inflow of warm, moist boundary layer air, which can impact TC intensity. Yet, precisely measuring rainband cloud boundaries with existing remote sensing techniques remains a challenge.
Ethan J. Murray, Zhien Wang, Kristopher B. Karnauskas, Jun A. Zhang   +3 more
wiley   +1 more source

Remote Polar Boundary Layer Wind Profiling Using an All-Fiber Pulsed Coherent Doppler Lidar at Zhongshan Station, Antarctica

Atmosphere, 2023
A compact all-fiber pulsed coherent Doppler lidar (PCDL) for boundary layer wind measurement was developed by the Institute of Oceanographic Instrumentation, Qilu University of Technology (Shandong Academy of Sciences).
Hui Li, Zhangjun Wang, Quanfeng Zhuang, Rui Wang, Wentao Huang, Chao Chen, Xianxin Li, Xiufen Wang, Boyang Xue, Yang Yu, Xin Pan   +10 more
doaj   +1 more source

Coherent Doppler lidar for wind farm characterization

Wind Energy, 2012
ABSTRACTCoherent Doppler lidar measurements are of increasing interest for the wind energy industry. Wind measurements are fundamental inputs for the evaluation of potential energy yield and performance of wind farms. Three‐dimensional scanning Doppler lidar may provide a new basis for wind farm site selection, design and optimization.
R. Krishnamurthy, A. Choukulkar, R. Calhoun, J. Fine, A. Oliver, K.S. Barr   +5 more
openaire   +1 more source