Results 81 to 90 of about 7,002 (201)

An alternative representation of Synthetic Aperture Radar images as an aid to the interpretation of englacial observations [PDF]

The Cryosphere
Ground-penetrating radar reveals subsurface geometry and ice stratigraphy that contains information about past and present dynamics of the cryosphere. Synthetic Aperture Radar (SAR) is a processing technique based on averaging the radar echoes received ...
Á. Arenas-Pingarrón, A. M. Brisbourne, C. Martín, H. F. J. Corr, C. Robinson, T. A. Jordan, P. V. Brennan   +6 more
doaj   +1 more source

TRACERS Small‐Scale Field‐Aligned Currents and Intense GPS Amplitude and Phase Scintillations in the Nightside Auroral Region

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract We present conjugate observations of ionospheric small‐scale magnetic perturbations (dB) $(dB)$ and GPS scintillations from the Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites (TRACERS) and the Canadian High Arctic Ionospheric Network (CHAIN) during a storm‐time substorm on 9 August 2025 in the nightside auroral region ...
Yangyang Shen, Robert J. Strangeway, Hao Cao, James M. Weygand, Jiashu Wu, Anthony McCaffrey, P. T. Jayachandran, Daniel Billett, Magnus F. Ivarsen, Christopher Watson, Sheng Tian, Marit Oieroset, David Miles   +12 more
wiley   +1 more source

The Synoptic, Microphysical, and Radar Characteristics of Upper Great Lakes Snow Events

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 14, 28 July 2026.
Abstract The upper Great Lakes region is well‐known for significant snowfall during the winter months. The microphysical characteristics of the snow depend to a great degree on snow particle formation and growth processes that are linked to regime‐dependent environmental conditions.
Timothy J. Wagner, Jack Richter, Marian Mateling, Claire Pettersen, Mark Kulie   +4 more
wiley   +1 more source

Reliability and validity of motion sensor and radar for measuring shuttlecock velocity in badminton

International Journal of Racket Sports Science
Radar doppler and inertial measurement unit are often used to analyze the projectile velocity. The aim of the present study was to analyse the reliability and validity of a specifically motion sensor (named: Zepp Tennis) and a radar (Doppler-radar gun ...
Michael Phomsoupha, Florie Bonneau, Guillaume Laffaye   +2 more
doaj  

Estimating Uncertainty of PMW‐Based Convective Fraction Product

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 14, 28 July 2026.
Abstract Convective precipitation plays a crucial role in the Earth's hydrological cycle, vertical thermodynamic transport, and natural weather hazards. While satellite passive microwave (PMW) observations offer broad spatial coverage essential for global precipitation monitoring, uncertainties in PMW‐derived precipitation class (i.e., regime) remain ...
Lei Ji, Veljko Petković, Marko Orescanin   +2 more
wiley   +1 more source

Evaluation of Radar Observation Contribution to CMA-MESO Assimilation System

应用气象学报
Radar wind observations, such as Doppler weather radar radial velocity and wind profiler data, are critical for initializing numerical weather prediction (NWP) models due to their high spatiotemporal resolution.
Jing Yujie, Zhang Lin, Jiang Yuan, Wang Ruichun, Wang Dan, Liu Jingwei   +5 more
doaj   +1 more source

Space‐Time‐Coding Metasurfaces Enabling Programmable Range‐Angle‐Dependent Energy Auto‐Scanning

Nanophotonics, Volume 15, Issue 14, 27 July 2026.
This paper presents a novel energy auto‐scanning system based on a space‐time‐coding metasurface. By applying progressive time‐delayed, time‐varying phase modulation, the system generates non‐uniform, temporally evolving electromagnetic field distributions across both angle and range.
Yuzhen Chen, Xiaoyi Wang, Guo‐Min Yang, Ya‐Qiu Jin   +3 more
wiley   +1 more source

Observations and Analysis of a Tornadic Quasi‐Linear Convective System (QLCS) With Bistatic Weather Radar

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract The deployment of a multistatic radar network in the Oklahoma City metropolitan area in Spring 2024 has allowed for unique observations of several severe weather events. This passive multistatic network operates in conjunction with the operational KTLX WSR‐88D, allowing for synchronous multi‐Doppler analyses. This work presents a case study of
Samuel Emmerson, David Bodine, Patrick Skinner, Robert Palmer, David Schvartzman, Pierre Kirstetter   +5 more
wiley   +1 more source

Doppler radar remote sensing of respiratory function. [PDF]

Front Physiol, 2023
Ishrak MS, Cai F, Islam SMM, Borić-Lubecke O, Wu T, Lubecke VM.   +5 more
europepmc   +1 more source

Observations of Offshore Low‐Level Jets Off the U.S. East Coast Reveal Systematic Biases in ERA5 and HRRR

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Low‐level jets (LLJs)—wind speed maxima typically occurring a few hundred meters above the surface—are common off the U.S. East Coast and influence many atmospheric processes with societal importance, including cloud formation, aviation safety, and search‐and‐rescue.
N. Bodini, S. Letizia, B. Adler, D. D. Turner, R. Krishnamurthy, A. Scholbrock, D. Jager, E. Cinquino, A. Kirincich   +8 more
wiley   +1 more source