Results 61 to 70 of about 492 (181)
Coherent Doppler Wind Lidar Suborbital and Orbital Activities at NASA Langley [PDF]
EPJ Web of ConferencesNASA's Langley Research Center recently completed development of the Aerosol Wind Profiler (AWP) suborbital coherent Doppler wind lidar (CDWL) instrument.
Marketon John +8 more
doaj +1 more source
Flywheel Calibration of Coherent Doppler Wind Lidar [PDF]
, 2018 Within the field of lidar measurement it is often debated why it is necessary to calibrate lidars given that they are ‘absolute’ instruments. By this is meant that, given two parameters; the laser wavelength and the frequency at which we sample the backscattered light, we are able to calculate the measured radial speed through the well-known equation ...
Pedersen, Anders Tegtmeier; id_orcid 0000-0002-9132-1357 +1 more
openaire +1 more source
Journal of Geophysical Research: Atmospheres, Volume 131, Issue 12, 28 June 2026.Abstract Global Navigation Satellite Systems (GNSS) provide continuous measurements of zenith wet delay (ZWD), reflecting column‐integrated atmospheric water vapor. While the slowly varying ZWD is routinely assimilated in numerical weather prediction, the rapid fluctuations on timescales of seconds to minutes that arise from boundary‐layer turbulence ...
Gaël Kermarrec +3 more
wiley +1 more source
Water Vapor, Cloud and Aerosol Properties on the Tibetan Plateau Using Multi-Lidar Measurements
EPJ Web of Conferences, 2016 The 3rd Tibetan Plateau atmospheric expedition experiment campaign were operated in the Tibetan Plateau during July and August 2014 by utilizing the Water vapor, Cloud and Aerosol Lidar (WVCAL), Coherent Doppler Wind Lidar and ceilometer VAISALA CL31 ...
Wu Songhua +4 more
doaj +1 more source
Reconstructing Marine Boundary Layer Jets Over the South China Sea Using Machine Learning
Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.Abstract Marine boundary layer jets (MBLJs) over the South China Sea (SCS) play a critical role in coastal heavy rainfall, yet their structure remains uncertain due to limited wind observations over the ocean. Here, we develop a U‐Net–based reconstruction framework to estimate 950‐hPa winds from satellite‐derived sea surface winds, providing a ...
Yican Lin, Yu Du, Jiuke Wang
wiley +1 more source
Current Applications of Scanning Coherent Doppler Lidar in Wind Energy Industry
EPJ Web of Conferences, 2016 Scanning Doppler Lidars have become more prominent in the wind energy industry for a variety of applications. Scanning Lidar’s provide spatial variation of winds and direction over a large area, which can be used to assess the spatial uncertainty of ...
Krishnamurthy R, Boquet M, Osler E
doaj +1 more source
Signal to Noise Ratio Characterization of Coherent Doppler Lidar Backscattered Signals
EPJ Web of Conferences, 2016 An eye-safe coherent Doppler Lidar (CDL) system for wind measurement was developed and tested at the Remote Sensing Laboratory of the City College of New York (CCNY).
Abdelazim Sameh +4 more
doaj +1 more source
Modeling continuous area location monostatic doppler lidar determining wind parameters
Известия высших учебных заведений: Проблемы энергетики, 2017 The application of semiconductor light sources with a spectral width of tens of kilohertz in the art of continuous Doppler lidar. The influence of the source characteristics of the formation of the zone location.
D. V. Vasil'ev, A. I. Laryushin
doaj +1 more source
Coherent Doppler lidar for wind velocity and direction measurements.
The Review of Laser Engineering, 1989 As a remote wind sensor having an ability of three-dimensional wind sounding, a coherent Doppler lidar operating in the eye-safe infrared wavelength range of 9-10mu;m has been successfully developed in ground-based and airborne applications for a variety of scientific research purposes.
ASAI, Kazuhiro +2 more
openaire +2 more sources
Moving target detection based on velocity compensation methods in a coherent continuous wave lidar
The Journal of Engineering, 2019 Light Detection and Ranging (lidar) technology has been applied in military and civil areas and shows great potential. However, in coherent lidar detection, significant Doppler Effect and velocity uncertainty result a bad influence on moving target ...
Huixin Huang +3 more
doaj +1 more source