Results 1 to 10 of about 932 (178)

Pulse Accumulation Approach Based on Signal Phase Estimation for Doppler Wind Lidar [PDF]

open access: yesSensors
Coherent Doppler wind lidar (CDWL) uses transmitted laser pulses to measure wind velocity distribution. However, the echo signal of CDWL is easily affected by atmospheric turbulence, which can decrease the signal-to-noise ratio (SNR) of lidar. To improve
Naiyuan Liang   +7 more
doaj   +4 more sources

Validation of an Airborne Doppler Wind Lidar in Tropical Cyclones [PDF]

open access: yesSensors, 2018
This study presents wind observations from an airborne Doppler Wind Lidar (ADWL) in 2016 tropical cyclones (TC). A description of ADWL measurement collection and quality control methods is introduced for the use in a TC environment. Validation against different instrumentation on-board the National Oceanographic and Atmospheric Administration’s WP-3D ...
Robert Atlas   +2 more
exaly   +6 more sources

A Multi-Year Evaluation of Doppler Lidar Wind-Profile Observations in the Arctic

open access: yesRemote Sensing, 2020
Doppler light detection and ranging (lidar) wind profilers have proven their capability to measure vertical wind profiles with an accuracy comparable to anemometers and radiosondes.
Zen Mariani   +3 more
doaj   +3 more sources

Comparison of Lower Stratosphere Wind Observations From the USTC's Rayleigh Doppler Lidar and the ESA's Satellite Mission Aeolus

open access: yesEarth and Space Science, 2022
Since the first spaceborne Doppler wind lidar, Aeolus, was launched, global wind field observations from space have been possible. Several ground‐ and air‐based validations followed, although most of these comparisons remained below 10 km in the ...
Chong Chen   +7 more
doaj   +2 more sources

Resolving three-dimensional wind velocity fields in complex terrain using sequential wind-Doppler LiDAR, CFD and wind turbine measurements - Gotthard Pass, Switzerland [version 3; peer review: 2 approved, 2 not approved] [PDF]

open access: yesOpen Research Europe
Background Understanding the effects of complex terrain on wind turbines in alpine regions requires high-resolution computational modelling accompanied by detailed wind observations.
Dylan Reynolds   +3 more
doaj   +2 more sources

Development and Test of a Fringe-Imaging Direct-Detection Doppler Wind Lidar for Aeronautics [PDF]

open access: yesEPJ Web of Conferences, 2020
DLR currently investigates the use of Doppler wind lidar as sensor within feedforward gust alleviation control loops on fast-flying fixed-wing aircraft.
Vrancken Patrick, Herbst Jonas
doaj   +1 more source

Development of Synergetic-Active Sensor-System for Evaluation of Observations by Earthcare [PDF]

open access: yesEPJ Web of Conferences, 2020
We develop the synergetic ground-based active-sensor-system for the evaluation of observations by space-borne lidars. The system consists of second version of multi-field-view multiple-scattering polarization lidar (MFMSPL-2), multiple-field-of-view high
Okamoto Hajime   +8 more
doaj   +1 more source

Multilevel Validation of Doppler Wind Lidar by the 325 m Meteorological Tower in the Planetary Boundary Layer of Beijing

open access: yesAtmosphere, 2020
The high-frequency monitoring of three-dimensional wind fields is crucial in planetary boundary layer meteorology. Doppler wind lidar and meteorological towers are the most important instruments for site observations of three-dimensional wind fields ...
Lindong Dai   +8 more
doaj   +1 more source

Examining the Effectiveness of Doppler Lidar-Based Observation Nudging in WRF Simulation for Wind Field: A Case Study over Osaka, Japan

open access: yesAtmosphere, 2023
This study attempts to improve the accuracy of wind field simulations in the Weather Research and Forecasting (WRF) model by incorporating Doppler lidar-based wind observations over the Osaka region of Japan. To achieve this, a Doppler lidar was deployed
Sridhara Nayak, Isao Kanda
doaj   +1 more source

A New Airborne Doppler Lidar for Boundary Layer Research & LES-Based Simulation [PDF]

open access: yesEPJ Web of Conferences, 2020
Airborne Doppler lidar measurements are a valuable tool in meteorological research. A new airborne Doppler lidar system has been developed jointly by the Karlsruhe Institute of Technology (KIT) and the Technical University of Brunswick.
Gasch P.   +5 more
doaj   +1 more source

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