Results 61 to 70 of about 12,158 (226)

Expected Characteristics of Global Wind Profile Measurements with a Scanning, Hybrid, Doppler Lidar System [PDF]

, 2008
Over 20 years of investigation by NASA and NOAA scientists and Doppler lidar technologists into a global wind profiling mission from earth orbit have led to the current favored concept of an instrument with both coherent- and direct-detection pulsed ...
Kavaya, Michael J.
core   +1 more source

Convective Organization in African Easterly Waves Observed During the NAMMA and CPEX‐CV Field Campaigns

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 6, 28 March 2026.
Abstract Fundamental questions remain about where and when convection will occur within African easterly waves. In this study, we aim to better understand the dynamical processes that govern moist convective organization at the meso‐alpha scale in tropical easterly waves using NASA airborne field campaigns and satellite observations.
D. Colón‐Burgos, M. M. Bell
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

Listening to the Atmosphere: Using Infrasound Observations to Infer Atmospheric Conditions

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 5, 16 March 2026.
Abstract The stratosphere and mesosphere are important regions for the prediction of weather at the Earth's surface for medium‐ and long‐range forecasts. The availability of observations in these layers is lower than that of the troposphere, especially for the dynamics. While seeking new observational sources is important, there are existing infrasound
Javier Amezcua, Gil Averbuch, Sven Peter Näsholm, Stephen Arrowsmith   +3 more
wiley   +1 more source

Latent Heat Flux Profiles from Collocated Airborne Water Vapor and Wind Lidars during IHOP_2002 [PDF]

, 2007
Latent heat flux profiles in the convective boundary layer (CBL) are obtained for the first time with the combination of the DLR water vapor differential absorption lidar (DIAL) and the NOAA high resolution Doppler wind lidar (HRDL).
Brewer, Alan, Ehret, Gerhard, Fix, Andreas, Hardesty, Michael, Kiemle, Christoph, LeMone, Margaret, Poberaj, Gorazd, Senff, Christoph, Wirth, Martin   +8 more
core   +1 more source

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

Morphological instability in restored intertidal flats: How anthropogenic structures drive early‐stage evolution

Earth Surface Processes and Landforms, Volume 51, Issue 3, March 2026.
The study focusses on the morphological evolution of worldwide restored intertidal flats. These intertidal flats initially experience high sedimentation rates after the opening of the connection with open waters. The anthropogenic structures cause high morphological instability and are eroded, leading to a self‐cannibalisation of the system.
Riccardo Brunetta, Samantha Crowell, Megan Elliott, Danika van Proosdij, Paolo Ciavola   +4 more
wiley   +1 more source

Floodplain Conservation Versus Landscape Development—How to Tackle the Multifunctional Management Issue

WIREs Water, Volume 13, Issue 2, March/April 2026.
The ability to perform a number of ecosystem functions is degraded by the inappropriate damming of agricultural floodplains (by levee construction) or by the continuous urban expansion, where flood protection is justified but at the cost of affecting the environmental stability of the wider landscape.
Jiří Jakubínský, Marcela Prokopová, Barbara Stammel, Ján Babej, Nejc Bezak, Florian Borgwardt, Martina Bussettini, Carlo Camporeale, Pavel Cudlín, Sabine Fink, Anna Kidová, Guillermo Palau‐Salvador, Vilém Pechanec, Kristina Potočki, Carles Sanchis‐Ibor, Lenka Štěrbová, Renata Včeláková, Paolo Vezza   +17 more
wiley   +1 more source

On Wind Directions Estimated by Nacelle Lidar Under Different Reconstruction Methods

Wind Energy, Volume 29, Issue 3, March 2026.
ABSTRACT The wind direction is closely linked to the power performance and structural loads of wind turbines. Conventional nacelle‐mounted vanes or sonic anemometers face errors associated with airflow distortions caused by turbine blades. Nacelle‐mounted lidar systems offer line‐of‐sight speed measurements from multiple positions ahead of the rotor ...
Feng Guo, Wenhao Xu, Zhaoyu Zhang, David Schlipf, Paolo Schito, Alberto Zasso, Zhen Gao, Yujin Dong   +7 more
wiley   +1 more source