Results 81 to 90 of about 12,158 (226)

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

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

Doppler Lidar Wind Value-Added Product

, 2015
Wind speed and direction, together with pressure, temperature, and relative humidity, are the most fundamental atmospheric state parameters. Accurate measurement of these parameters is crucial for numerical weather prediction. Vertically resolved wind measurements in the atmospheric boundary layer are particularly important for modeling pollutant and ...
R. K. Newsom, C. Sivaraman, T. R. Shippert, L. D. Riihimaki   +3 more
openaire   +2 more sources

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

Data Acquisition and Processing System for Airborne Wind Profiling with a Pulsed, 2-Micron, Coherent-Detection, Doppler Lidar System [PDF]

, 2010
A data acquisition and signal processing system is being developed for a 2-micron airborne wind profiling coherent Doppler lidar system. This lidar, called the Doppler Aerosol Wind Lidar (DAWN), is based on a Ho:Tm:LuLiF laser transmitter and 15-cm ...
Beyon, J. Y., Kavaya, M. J., Koch, G. J.
core   +1 more source

Deep Convection‐Driven Downward Transport of Trace Gases and Aerosols From the Free Troposphere to the Boundary Layer

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract Deep convective clouds regulate Earth's energy and moisture budgets, yet their impact on the atmospheric boundary layer (BL) composition remains underexplored. Using long‐term observations from three mid‐latitude sites, we show that deep convection (DC) consistently enhances nighttime surface ozone and is often accompanied by modest increases ...
Manisha Mehra, Yang Wang, Chanakya Bagya Ramesh, Ruoyu Zhang, Jiaoshi Zhang, Scott E. Giangrande, Jian Wang   +6 more
wiley   +1 more source

Skillful Polar WRF Cloud Modeling of a Warm Winter Atmospheric River at the Antarctic Peninsula

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 3, 16 February 2026.
Abstract Atmospheric rivers are episodic events that can advect relatively large quantities of moisture to Antarctica, contributing to both disproportionate precipitation and melting events. The Year of Polar Prediction, an international effort to improve weather prediction over the southern polar region, presents an opportunity to study the clouds and
K. M. Hines, P. M. Rowe, I. V. Gorodetskaya, A. Chyhareva, D. H. Bromwich, M. Fontolan Litell, S.‐H. Wang, S. Krakovska, C. Duŕan‐Alarcon, R. A. Stillwell   +9 more
wiley   +1 more source

Doppler Rayleigh/Mie/Raman lidar for wind and temperature measurements in the middle atmosphere up to 80 km [PDF]

, 2010
A direct detection Doppler lidar for measuring wind speed in the middle atmosphere up to 80 km with 2 h resolution was implemented in the ALOMAR Rayleigh/Mie/Raman lidar (69° N, 16° E).
G. Baumgarten
core   +1 more source

All-Fiber Airborne Coherent Doppler Lidar to Measure Wind Profiles

EPJ Web of Conferences, 2016
An all-fiber airborne pulsed coherent Doppler lidar (CDL) prototype at 1.54μm is developed to measure wind profiles in the lower troposphere layer. The all-fiber single frequency pulsed laser is operated with pulse energy of 300μJ, pulse width of 400ns ...
Liu Jiqiao, Zhu Xiaopeng, Diao Weifeng, Zhang Xin, Liu Yuan, Bi Decang, Jiang Liyuan, Shi Wei, Zhu Xiaolei, Chen Weibiao   +9 more
doaj   +1 more source

Vertical Azimuth Display simulator for wind-Doppler lidar error assessment [PDF]

, 2017
(c) 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or ...
Gutiérrez Antuñano, Miguel Ángel, Rocadenbosch Burillo, Francisco, Tiana Alsina, Jordi   +2 more
core   +1 more source