Results 71 to 80 of about 20,211 (224)

Atmospheric Boundary Layer Classification With Doppler Lidar [PDF]

Journal of Geophysical Research: Atmospheres, 2018
AbstractWe present a method using Doppler lidar data for identifying the main sources of turbulent mixing within the atmospheric boundary layer. The method identifies the presence of turbulence and then assigns a turbulent source by combining several lidar quantities: attenuated backscatter coefficient, vertical velocity skewness, dissipation rate of ...
A. J. Manninen, T. Marke, M. Tuononen, E. J. O'Connor   +3 more
openaire   +2 more sources

Glacier‐Atmosphere Interactions and Feedbacks in High‐Mountain Regions ‐ A Review

Reviews of Geophysics, Volume 64, Issue 1, March 2026.
Abstract Mountain glaciers are among the natural systems most vulnerable to climate change. However, their interactions with the atmosphere are complex and not fully understood. These interactions can trigger rapid adjustments and climate feedbacks that either amplify or attenuate atmospheric signals, influencing both glacier response and large‐scale ...
T. Sauter, B. W. Brock, E. Collier, B. Goger, A. R. Groos, K. F. Haualand, R. Mott, L. Nicholson, R. Prinz, T. E. Shaw, I. Stiperski, A. Georgi, M. Haugeneder, A. Mandal, D. Reynolds, M. Saigger, J. E. Sicart, A. Voordendag   +17 more
wiley   +1 more source

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

Peering Inside Tropical Cyclones With the WIVERN Space‐Borne Doppler Radar

Earth and Space Science, Volume 13, Issue 3, March 2026.
Abstract The WIVERN (Wind Velocity Radar Nephoscope) mission significantly enhances the global tropical cyclone observing system. Operating from a 500 km near‐polar orbit, the 3 m diameter conically scanning antenna provides an 800 km swath. The radar operated at 94 GHz (3 mm wavelength) provides high‐resolution observations with a vertical resolution ...
Alessandro Battaglia, Francesco Manconi, Massimiliano Recupero, Cinzia Cambiotti, Marco Coppola, Antonio Parodi, Frederic Tridon, Simone Mantovani, Pavlos Kollias, David S. Nolan, Marcel Kleinherenbrink, Maryam Pourshamsi   +11 more
wiley   +1 more source

Analysis of airborne Doppler lidar, Doppler radar and tall tower measurements of atmospheric flows in quiescent and stormy weather [PDF]

The first experiment to combine airborne Doppler Lidar and ground-based dual Doppler Radar measurements of wind to detail the lower tropospheric flows in quiescent and stormy weather was conducted in central Oklahoma during four days in June-July 1981 ...
Bluestein, H. B., Doviak, R. J., Eilts, M. D., Mccaul, E. W., Rabin, R., Sundara-Rajan, A., Zrnic, D. S.   +6 more
core   +1 more source

First Coincident Radar and Optical Observations of a Meteor Radio Afterglow

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract It has been hypothesized that Meteor Radio Afterglows (MRAs) occur due to resonant transition radiation (RTR) where suprathermal electrons emit as they pass through electron density inhomogeneities in a turbulent plasma. Meteor trails are thought to produce suprathermal electrons through anion oxidation, which can be identified through meteor ...
K. S. Obenberger, J. L. Chau, J. Vierinen, D. Vida, L. E. Cordonnier, Z. Balint, M. Clahsen, E. Dao, J. Dowell, J. M. Holmes, R. F. Kelly, D. Kastinen, N. Pfeffer, K. Robinson, G. B. Taylor, J. M. Urco   +15 more
wiley   +1 more source

Software-Defined 1550-nm Full-Fiber Doppler Lidar for Contactless Vibration Measurement of High Voltage Power Equipment [PDF]

Radioengineering, 2023
In this work, a 1550-nm full-fiber Doppler lidar via software-defined platform is built to realize flexible and low-cost contactless vibration measurement of high-voltage power equipment.
X. Guan, C. Lv, G. Zheng, Z. Pan, K. Cai
doaj  

Monitoring Flood Inundation Dynamics From Space

Reviews of Geophysics, Volume 64, Issue 1, March 2026.
Abstract With the increasing intensity and frequency of flood events worldwide, the need for accurate and timely inundation mapping has never been more critical. Large‐scale flood extent estimations are vital for coordinating effective disaster response, facilitating recovery, and building future resilience.
C. Campo, P. Tamagnone, S. Choy, T. D. Tran, G. J.‐P. Schumann, Y. Kuleshov   +5 more
wiley   +1 more source

Mechanisms Driving Transport and Accretion of Mud From Channels to Islands in a River‐Dominated Delta

Water Resources Research, Volume 62, Issue 3, March 2026.
Abstract River deltas are important landforms because they build coasts. Primary channels divide deltaic land into islands, which must accrete sediment fast enough for deltas to keep pace with sea level rise. Field observations are critical for determining the physical mechanisms that transport sediment between primary channels and islands, but are ...
Justin A. Nghiem, Gerard Salter, Gen K. Li, Kyle Wright, Paola Passalacqua, Michael P. Lamb   +5 more
wiley   +1 more source

Augmented Reality Based Doppler Lidar Data Visualization: Promises and Challenges

EPJ Web of Conferences, 2016
Augmented reality (AR) is a technology in which the enables the user to view virtual content as if it existed in real world. We are exploring the possibility of using this technology to view radial velocities or processed wind vectors from a Doppler wind
Cherukuru N. W., Calhoun R.
doaj   +1 more source