Results 81 to 90 of about 777,782 (300)

In Situ Observations of Ice Crystal Chain Aggregates in Winter Storms

Geophysical Research Letters, Volume 53, Issue 1, 16 January 2026.
Abstract Ice crystal chain aggregates—linear structures of conjoined monomer crystals—have previously been observed in strongly electrified deep convection, likely forming via electric‐field‐enhanced aggregation. The NASA Investigation of Microphysics and Precipitation for Atlantic Coast‐Threatening Snowstorms field campaign conducted aircraft‐based ...
Christian M. Nairy, David J. Delene, Joseph A. Finlon, John E. Yorks, Emma Järvinen, Martin Schnaiter, Matthew L. Walker McLinden, Andrew J. Heymsfield, Andrew G. Detwiler, Lynn A. McMurdie   +9 more
wiley   +1 more source

Measuring River Surface Velocity Using UAS‐Borne Doppler Radar

Water Resources Research
Using Unoccupied Aerial Systems (UAS) equipped with optical RGB cameras and Doppler radar, surface velocity can be efficiently measured at high spatial resolution.
Zhen Zhou, Laura Riis‐Klinkvort, Emilie Ahrnkiel Jørgensen, Christine Lindenhoff, Monica Coppo Frías, Alexander Rietz Vesterhauge, Daniel Haugård Olesen, Makar Lavish, Alexey Dobrovolskiy, Alexey Kadek, Niksa Orlic, Tomislav Grubesa, Luka Drmić, Henrik Grosen, Sune Nielsen, Daniel Wennerberg, Viktor Fagerström, Jenny Axén, David Gustafsson, Peter Bauer‐Gottwein   +19 more
doaj   +1 more source

Water Storage Changes of Lakes and Reservoirs Across Asia (2018–2023) and Their Effects in Flood Control

Geophysical Research Letters, Volume 53, Issue 1, 16 January 2026.
Abstract Monitoring lake and reservoir water levels is critical for water resource management and flood risk mitigation. We integrate Sentinel‐3A/B and ICESat‐2 altimetry to reconstruct monthly water levels (2018–2023) for 7,433 lakes and reservoirs (>5 km2) across Asia and estimate their storage variations.
Zhiyuan An, Zhao Li, Taoyong Jin, Weiping Jiang, Peng Yuan, Kai Liu, Jian Wang, Peng Chen   +7 more
wiley   +1 more source

The Incidence and Cross Methods for Efficient Radar Detection

, 2013
The designation of the radar system is to detect the position and velocity of targets around us. The radar transmits a waveform, which is reflected back from the targets, and echo waveform is received.
Fish, Alexander, Gurevich, Shamgar
core   +1 more source

Climatology of Cloud‐Land‐Surface Coupling Across Different ARM Sites

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 1, 16 January 2026.
Abstract Land‐atmosphere interactions play a critical role in the evolution and formation of low‐level clouds. The different states of coupling between low‐level clouds and the surface are uncertain, primarily over continental regions, where complex thermodynamics complicates their investigation.
Natalia Roldán‐Henao, Tianning Su, Zhanqing Li, Youtong Zheng, John Yorks   +4 more
wiley   +1 more source

Application of S-Transform Random Consistency in Inverse Synthetic Aperture Imaging Laser Radar Imaging

Applied Sciences, 2019
Under the same principle, laser radar could be more sensitive to the micro-Doppler (m-D) effect due to its wave length, as the characteristic of multi-resolution, S transform could reduce the influence of the micro-Doppler component and enhance the ...
Bo Zang, Mingzhe Zhu, Xianda Zhou, Lu Zhong, Zijiao Tian   +4 more
doaj   +1 more source

Engineered Multifunctional Hydrogel Delivering Novel CBX7 Inhibitor Modulates Cuproptosis Via Liquid–Liquid Phase Separation to Restore Cardiac Function in Aged Myocardial Infarction

Advanced Science, Volume 13, Issue 1, 5 January 2026.
An age‐adapted therapy pairs δ‐Amyrenone, a CBX7 inhibitor, with an alginate hydrogel (CSAδ) to rescue infarcted elderly hearts. CSAδ disrupts CBX7–ATP7A liquid–liquid phase separation, restores ATP7A trafficking and copper efflux, suppresses cuproptosis, supplies oxygen, scavenges ROS, promotes M2 polarization, supports angiogenesis, and enhances ...
Jun Liu, Peng Qu, Jiao Shi, Tingting Liang, Yao Gu, Xue Li, Cui Ma, Danyang Zhao, Feila Liu, Qi Liang, Panke Cheng, Qian Lei   +11 more
wiley   +1 more source

Radar detectability of light aircraft micro‐Doppler modulation

IET Radar, Sonar & Navigation
The critical role of specifying micro‐Doppler mode performance in the modelling and development of modern radar systems is investigated. The authors focus on the detection of micro‐Doppler modulation from light aircraft, analysing data from eight ...
Robert John Berndt, Mohammed Yunus Abdul Gaffar, Willem Andries Jacobus Nel, Daniel W. O’Hagan   +3 more
doaj   +1 more source

Target separation detection and motion parameter estimation method based on time-varying autoregressive model

The Journal of Engineering, 2019
The authors report a target separation detection and motion parameter estimation method based on the time-varying autoregressive (TVAR) model. The TVAR model is used to extract the instantaneous Doppler frequencies of multiple targets or scattering ...
Yaolin Zhang, Yuhao Yang, Qiang Cheng, Yanjun Hao   +3 more
doaj   +1 more source

Summary of flight tests of an airborne lighting locator system and comparison with ground-based measurements of precipitation and turbulence [PDF]

Data from an airborne lightning locator system and data relating to storm intensity obtained by ground-based Doppler radars and the S-band research radar are presented.
Crabill, N. L., Fisher, B. D.
core   +1 more source