Results 41 to 50 of about 932 (178)
PhotonicsAccurate measurements of wind fields in the troposphere and stratosphere are essential for advancing atmospheric dynamics research, improving weather prediction, and supporting aerospace operations.
Hengjia Liu +7 more
doaj +1 more source
Latent Heat Flux and TKE measurements from the combined use of Water Vapour Raman and Wind Doppler Lidars during WaLiNeas Campaign [PDF]
EPJ Web of ConferencesMeasurements of latent heat flux profiles in the daytime convective boundary layer were carried out in the frame of the WaLiNeAs field campaign, taking advantage of the combined use of two ground-based lidars: a water vapour Raman lidar and a wind ...
Summa Donato +7 more
doaj +1 more source
Observations and numerical simulations of a valley‐exit wind in the Alpine Bolzano basin
Quarterly Journal of the Royal Meteorological Society, EarlyView.The evolution and spreading of the nocturnal valley‐exit wind flowing from the Isarco Valley into the Bolzano basin, in the Italian Alps, are found to be influenced by the basin temperature stratification. Measurements and high‐resolution simulations show that a cold‐air pool favors an upward trajectory of the flow at the exit of the valley.
Federica Gucci +4 more
wiley +1 more source
Wind measurements with 355-nm molecular Doppler lidar [PDF]
Optics Letters, 2000 A Doppler lidar system based on the molecular double-edge technique is described. The system is mounted in a modified van to permit deployment in field operations. The lidar operates with a tripled Nd:YAG laser at 355 nm, a 45-cm-aperture telescope, and a matching azimuth-over-elevation scanner to permit full sky access.
B M, Gentry, H, Chen, S X, Li
openaire +2 more sources
Minute-scale power forecast of offshore wind turbines using long-range single-Doppler lidar measurements [PDF]
Wind Energy Science, 2020 Decreasing gate closure times on the electricity stock exchange market and the rising share of renewables in today's energy system causes an increasing demand for very short-term power forecasts.
F. Theuer +3 more
doaj +1 more source
Quarterly Journal of the Royal Meteorological Society, EarlyView.A new method compares both kilometer and sub‐kilometre weather model simulations with Doppler lidar observations to assess the representation of boundary‐layer turbulence. While bulk boundary‐layer properties are well represented, vertical velocity variance is strongly underestimated in both simulations.
Natalie J. Harvey +7 more
wiley +1 more source
Quarterly Journal of the Royal Meteorological Society, EarlyView.Using S‐band dual‐polarization radar and disdrometers during PRECIP 2022 in Taiwan, we analyze a Mei‐Yu frontal event with widespread stratiform rain and embedded convection. Multiple disdrometers are used to create a novel drop size distribution model for S‐band radars resolving both the drizzle and precipitation modes. The model reveals both inferred
Ian C. Cornejo +3 more
wiley +1 more source
Frontiers of Doppler Lidar: A Review on Its Global Applications
Meteorological ApplicationsDoppler lidar is a powerful remote sensing technology capable of measuring wind profiles, turbulence, and aerosol distributions at high temporal (seconds to minutes) and spatial (10–100 m) resolution.
Sridhara Nayak, Isao Kanda
doaj +1 more source
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 +10 more
doaj +1 more source
Quarterly Journal of the Royal Meteorological Society, EarlyView.This study investigates the thermodynamic and microphysical characteristics of updrafts and downdrafts of tropical deep convective anvil clouds using in situ measurements. We found that parts of the downdrafts are in ice supersaturation in these clouds.
Sreehari Kizhuveettil +6 more
wiley +1 more source