Results 31 to 40 of about 1,980,581 (160)

Distributions of Ion Density Irregularities and Their Gradients Inside Low‐Latitude Ionospheric Plasma Bubbles Based on C/NOFS Planar Langmuir Probe Data

Space Weather, 2021
Data from the planar Langmuir probe onboard the Communication/Navigation Outage Forecasting System has been processed, with focus on the: (1) identification of Equatorial Plasma Bubbles located within the eclipse sections of the satellite orbits; (2 ...
Emanoel Costa, Patrick A. Roddy, John O. Ballenthin   +2 more
doaj   +1 more source

Near-threshold electron injection in the laser-plasma wakefield accelerator leading to femtosecond bunches [PDF]

, 2015
We gratefully acknowledge the support of the UK EPSRC (grant no. EP/J018171/1), the EU FP7 programmes: the Extreme Light Infrastructure (ELI) project, the Laserlab-Europe (no. 284464), and the EUCARD-2 project (no.
Jaroszynski, D.A., Jaroszynski, D A, Anania, M P, Brunetti, E, Anania, M.P., Welsh, G.H., Raj, G, Ersfeld, B, Cipiccia, S., Noble, A., Ersfeld, B., Raj, G., Cairns, R Alan, Islam, M R, Shanks, R P, Welsh, G H, Cairns, R.A., Issac, R C, Issac, R.C., Wiggins, S M, Islam, M.R., Noble, A, Cipiccia, S, Shanks, R.P., Brunetti, E., Wiggins, S.M., Cairns, R A   +26 more
core   +1 more source

Equatorial F-region plasma depletion drifts: latitudinal and seasonal variations [PDF]

Annales Geophysicae, 2003
The equatorial ionospheric irregularities have been observed in the past few years by different techniques (e.g. ground-based radar, digisonde, GPS, optical instruments, in situ satellite and rocket instrumentation), and its time evolution and ...
A. A. Pimenta, P. R. Fagundes, Y. Sahai, J. A. Bittencourt, J. R. Abalde   +4 more
doaj   +1 more source

Low-latitude scintillation occurrences around the equatorial anomaly crest over Indonesia [PDF]

Annales Geophysicae, 2014
We investigated low-latitude ionospheric scintillation in Indonesia using two GPS receivers installed at Bandung (107.6° E, 6.9° S; magnetic latitude 17.5° S) and Pontianak (109.3° E, 0.02° S; magnetic latitude 8.9° S).
P. Abadi, P. Abadi, S. Saito, W. Srigutomo   +3 more
doaj   +1 more source

Atomic Tuning of Metal‐Support Interactions for Pathway‐Selective CO2 Photoreduction on TiO2

Advanced Science, EarlyView.
Single‐atom Fe and Cu catalysts anchored on TiO2 steer photocatalytic CO2 reduction toward distinct pathways. Fe sites favor rapid *CO desorption and selective CO formation, whereas Cu sites stabilize *CHO intermediates, enabling deep reduction and C─C coupling. Combined spectroscopy and DFT calculations reveal how metal–support interactions and oxygen
Dongyun Kim, Wonjae Ko, Byoung‐Hoon Lee, Sanghoon Kim, Yun Do Kim, Hyunsoo Ahn, Yoon Jung, Chan Woo Lee, Kug‐Seung Lee, Eunhee Gong, Junho Lee, Minho Kim, Taeghwan Hyeon, Su‐Il In   +13 more
wiley   +1 more source

Automatic Equatorial Ionospheric Irregularities Detection From GOLD Images Using Deep Learning

Space Weather, Volume 24, Issue 11, November 2026.
Abstract Accurate detection of Equatorial Ionization Anomaly (EIA) and Equatorial Plasma Bubble (EPB) is critical for understanding ionospheric dynamic characteristics and mitigating their adverse impacts on satellite‐based communication and navigation systems.
Long Tang, Yumei Li, Huijian Zhao, Xueyan Chen, Qiong Ding, Fang Zou, Xiaohong Zhang   +6 more
wiley   +1 more source

Variability Of Plasma Bubble In The Equatorial Ionosphere At Midnight

, 2009
There are various types of ionospheric irregularities. Among these is the plasma bubble occurrence. They are most prominent at night time in the equatorial ionosphere.
BO Adebesin, Adebesin, BO
core   +1 more source

Impacts of the May 2024 G5 Storm on the Earth’s Upper Atmosphere: A Multi‐Instrument and Modeling Study

Space Weather, Volume 24, Issue 11, November 2026.
Abstract Understanding the coupled ionosphere‐thermosphere response to extreme geomagnetic storms is essential for improving physical understanding and space weather forecasting. We investigated the May 2024 G5 geomagnetic storm using observations from ionosondes, COSMIC‐2, Swarm, and GRACE‐FO satellites, GNSS total electron content (TEC) networks, and
V. V. Kumar, R. A. Marshall, V. Lobzin, T.‐W. Fang, R. A. D. Fiori, A. Kubaryk, R. M. Laugesen   +6 more
wiley   +1 more source

Deep Learning—Based Airglow Fusion and Forecasting for Equatorial Plasma Bubble Monitoring and GNSS Scintillation Prediction

Space Weather, Volume 24, Issue 11, November 2026.
Abstract Equatorial plasma bubbles (EPBs) are major low‐latitude ionospheric irregularities that can cause scintillation and degrade Global Navigation Satellite System (GNSS) performance. Existing amplitude‐scintillation prediction methods primarily use historical GNSS observations and ionospheric parameters, but rarely incorporate the evolving spatial
Haoyang Guo, Gang Chen, Jiyao Xu, Shaodong Zhang, Yang Qin, Yuanlin Jia, Min Zhang, Pengfei Hu, Yue Zhu, Yuanyuan Hou   +9 more
wiley   +1 more source

Midlatitude Plasma Blob‐like Structures Along With Super Equatorial Plasma Bubbles During the May 2024 Great Geomagnetic Storm

Geophysical Research Letters
Plasma blob is generally a low‐latitude phenomenon occurring at the poleward edge of equatorial plasma bubble (EPB) during post‐sunset periods. Here we report a case of midlatitude ionospheric plasma blob‐like structures occurring along with super EPBs ...
Wenjie Sun, Guozhu Li, Biqiang Zhao, Shun‐Rong Zhang, Yuichi Otsuka, Lianhuan Hu, Guofeng Dai, Xiukuan Zhao, Haiyong Xie, Yi Li, Jianfei Liu, Yu Li, Baiqi Ning, Libo Liu, Atsuki Shinbori, Michi Nishioka, Septi Perwitasari   +16 more
doaj   +1 more source