Results 71 to 80 of about 12,338 (223)

Wind Measurements up to 25km based on Aerosol Backscatter with a Novel, Multi Field of View Lidar [PDF]

EPJ Web of Conferences
We present the first set of simultaneous horizontal and vertical wind measurements obtained from aerosol backscatter, covering altitudes between 3 and 25 km.
Mense Thorben H., Höffner Josef, Froh Jan, Eixmann Ronald, Mauer Alsu, Baumgarten Gerd, Wing Robin, Lübken Franz-Josef, Munk Alexander   +8 more
doaj   +1 more source

Enhancing Great Plains Nocturnal Precipitation and Low‐Level Jets in AM4 With an Extended CLUBB Closure

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 5, May 2026.
Abstract In this study, we extend the Cloud Layers Unified by Binormals (CLUBB) turbulence scheme within the GFDL atmospheric model (AM4) by implementing direct momentum‐flux prognosis and a multiscale turbulent lengthscale, to improve the simulation of nocturnal precipitation and associated Low‐Level Jets (LLJs) over the Great Plains (GP). Toward this
Emanuele Silvio Gentile, Vincent E. Larson, Ming Zhao, Colin Zarzicky, Gunilla Svensson, Leo Donner   +5 more
wiley   +1 more source

Turbulence Measurements with Dual-Doppler Scanning Lidars

Remote Sensing, 2019
Velocity-component variances can be directly computed from lidar measurements using information of the second-order statistics within the lidar probe volume.
Alfredo Peña, Jakob Mann
doaj   +1 more source

Compact, High Energy 2-micron Coherent Doppler Wind Lidar Development for NASA's Future 3-D Winds Measurement from Space [PDF]

, 2010
This paper presents an overview of 2-micron laser transmitter development at NASA Langley Research Center for coherent-detection lidar profiling of winds.
Bai, Yingxin, Barnes, Bruce W., Beyon, Jeffrey, Chen, Songsheng, Demoz, Belay B., Kavaya, Michael J., Koch, Grady, Modlin, Edward A., Petros, Mulugeta, Petzar, paul, Singh, Upendra N., Trieu, Bo, Yu, Jirong   +12 more
core   +1 more source

Hydraulic Effects of Channel Realignment and Floodplain Reconnection in a Headwater Stream

Water Resources Research, Volume 62, Issue 5, May 2026.
Abstract Channel realignment and floodplain reconnection are increasingly used as nature‐based solutions for flood management, yet their hydraulic effects remain poorly quantified in field settings of moderate‐gradient, small order channels. This study examines the impact of such interventions on hydraulic response in a headwater catchment, Goldrill ...
M. T. Perks, N. Barber, G. L. Heritage, J. Knaggs, S. M. Reaney, H. Runeckles, N. D. Williams, D. Wishart, R. Powell   +8 more
wiley   +1 more source

Flight Testing of the TWiLiTE Airborne Molecular Doppler Lidar [PDF]

, 2010
In September, 2009 the TWiLiTE (Tropospheric Wind Lidar Technology Experiment) direct detection Doppler lidar was integrated for engineering flight testing on the NASA ER-2 high altitude aircraft.
Brewer, Alan, Cargo, Ryan, Gentry, Bruce, Hardesty, Michael, Hart, William, Machan, Roman, McGill, Matthew, Reed, Daniel, Scott, Stan, Wake, Shane, Wilkens, David J., Yorks, John   +11 more
core   +1 more source

Coherent Focused Lidars for Doppler Sensing of Aerosols and Wind [PDF]

Remote Sensing, 2018
Many coherent lidars are used today with aerosol targets for detailed studies of e.g., local wind speed and turbulence. Fibre-optic lidars operating near 1.5 μm dominate the wind energy market, with hundreds now installed worldwide. Here, we review some of the beam/target physics for these lidars and discuss practical problems.
openaire   +2 more sources

Doppler Winds Lidar Technology Development and Demonstration [PDF]

Space 2005, 2005
High resolution (both spatial and temporal) and accurate tropospheric wind profiling from spaceborne platforms has been one of the most wanted capability by both DOD and civilian user communities to support weather forecasting, national defense and homeland security applications.
Wang, Jinxue, Dehring, Michael, Hovis, Floyd, Moore, Berrien   +3 more
openaire   +1 more source

Comparison of ICON/MIGHTI and TIMED/SABER Neutral Temperature Measurements at Conjunctions in the Lower Thermosphere

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract This study presents a cross‐comparison of mesosphere and lower thermosphere (MLT) neutral temperatures between 88 and 110 km measured by ICON/Michelson Interferometer for Global High‐resolution Thermospheric Imaging (MIGHTI) and Thermosphere Ionosphere Mesosphere Energetics and Dynamics/Sounding of the Atmosphere using Broadband Emission ...
Manbharat Dhadly, Michael Stevens, John Emmert, Martin Mlynczak, McArthur Jones Jr.   +4 more
wiley   +1 more source

Process‐Oriented Calibration of a Turbulence Scheme in the DOE's Global Storm‐Resolving Model Using Machine Learning

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract A process‐oriented calibration framework is developed for the Simplified Higher‐Order Closure (SHOC) turbulence scheme in DOE's Simple Cloud Resolving E3SM Atmospheric Model (SCREAM). This framework leverages machine learning surrogates and observational constraints to efficiently calibrate SHOC adjustable parameters across two convective ...
Yunyan Zhang, Tianning Su, Hewei Tang, Peter Bogenschutz, Stephen A. Klein, Charles Jackson, Peter Caldwell   +6 more
wiley   +1 more source