Results 31 to 40 of about 93,595 (201)

Production of small-scale Alfvén waves by ionospheric depletion, nonlinear magnetosphere-ionosphere coupling and phase mixing [PDF]

, 2013
The authors acknowledge the International Space Science Institute (Switzerland) for funding the program that inspired this work. AJBR is grateful to the Royal Commission for the Exhibition of 1851 for present support and acknowledges an STFC studentship ...
Russell, A. J.B., Wright, A. N., Streltsov, A. V., Wright, A.N., A. J. B. Russell, Russell, A.J.B., A. N. Wright, Russell, A. J. B., A. V. Streltsov, Streltsov, A.V., Wright, A. N.; id_orcid, Russell, A. J.B.; id_orcid   +11 more
core   +1 more source

A Comparison Study of foF2 Derived from Oblique Sounding Network and Vertical Ionosonde in Northern China

Terrestrial, Atmospheric and Oceanic Sciences, 2016
The China Seismo-ionospheric Ground-based Monitoring Network in Northern China was established in August 2009, consisting of 5 vertical sounding stations and 20 oblique receiving stations.
Jing Liu, Wen-Yu Lou, Xue-Min Zhang, Xu-Hui Shen   +3 more
doaj   +1 more source

A new campaign for oblique-incidence ionospheric sounding over Europe and its data application

, 2008
New systematic oblique ionospheric radio sounding measurements over Central Europe, concerning the radio links between Inskip (UK, 53.5°N, 2.5°W) and Rome (Italy, 41.8°N, 12.5°E) and between Inskip and Chania (Greece, 35.7°N, 24.0°E), have been performed
Pietrella, M., Vallianatos, F., Romano, V., Angling, Matthew, Fontana, G., Angling, M. J., Zolesi, B., Kouris, S.S., Makris, J. P., Kouris, S. S., Belehaki, A., Tsagouri, I., Perrone, L., Tutone, G., Makris, J.P.   +14 more
core   +1 more source

Ionospheric E–F valley observed by a sounding rocket at the low-latitude station Hainan [PDF]

Annales Geophysicae, 2013
According to the sounding rocket experiment conducted at Hainan ionospheric observatory (19.5° N, 109.1° E), a valley between the E layer and F layer in the ionospheric electron density profile is observed and presented.
J. K. Shi, Z. Wang, K. Torkar, M. Friedrich, X. Wang, C. Liu, Y. B. Guan, G. W. Zhu   +7 more
doaj   +1 more source

Lightning electromagnetic emission location using arrival time differencing (LEELA): An introduction to the Met Office's next generation Very Low Frequency lightning location system

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This paper describes the Met Office's new lightning location system LEELA. A brief overview of the upgraded hardware and geolocation algorithms is given. LEELA has improved lightning detection capabilities, especially at night. When comparing LEELA to the previous ATDnet system against ground truths LEELA has 100% storm detection efficiency within 5 km
Graeme Marlton, Mike Protts, Stephen Prust, Edmund Keith Stone, Debbie O'Sullivan, Sue Twelves, Francesco Devoto, Claire Witham   +7 more
wiley   +1 more source

Spaceborne Distributed Array Processing for Precision Source Localization

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT Satellite‐based signals intelligence and spectrum sensing increasingly rely on low‐latency signal localization. However, operational processing chains often remain ground‐based, stressing feeder links and limiting scalability as constellations grow.
Dany Mestas, Daniel Weinzierl, Thomas Delamotte, Hervé Legay, Andreas Knopp   +4 more
wiley   +1 more source

Disturbances of ionospheric radio channel during magnetic storms in November–December 2023

Solar-Terrestrial Physics
This paper presents the results of analysis of oblique ionospheric sounding data obtained with continuous chirp signal on the subauroral paths Magadan—Irkutsk and Norilsk—Irkutsk.
Ponomarchuk S. N., Zolotukhina N. A.
doaj   +1 more source

Building a Continental‐Scale Geodetic Network: The Plate Boundary Observatory (PBO)

Perspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract The Plate Boundary Observatory (PBO) transformed the use of geodesy in North America to study crustal deformation and plate boundary processes by establishing a continental‐scale, standardized, open‐access geodetic network. Built and operated by UNAVCO between 2003 and 2018 as part of the National Science Foundation (NSF)‐funded EarthScope ...
Emily E. Zawacki, Michael E. Jackson, Glen S. Mattioli, David J. Mencin, Karl Feaux, Donna J. Charlevoix   +5 more
wiley   +1 more source

Contrasting Responses of Winter Wheat to Waterlogged and Non‐Waterlogged Coal Mining Subsidence Revealed by Integrated DInSAR and UAV Red‐Edge Remote Sensing

Food and Energy Security, Volume 15, Issue 6, November/December 2026.
ABSTRACT This study aimed to clarify the spatiotemporal differences in the growth responses of winter wheat (Triticum aestivum L.) to mining subsidence across different growth stages and hydrological conditions in high‐groundwater‐level Coal–Grain Composite Areas (CGCAs).
Duoduo Dong, Wenqing Xing, Jiaxin Liu, Yue Yang, Tingting Li, Chao Ma   +5 more
wiley   +1 more source

Ionospheric Electron Densities at Mars: Comparison of Mars Express Ionospheric Sounding and MAVEN Local Measurements

, 2017
We present the first direct comparison of Martian ionospheric electron densities measured by the Mars Advanced Radar for Subsurface and Ionospheric Sounding (MARSIS) topside radar sounder on board the Mars Express spacecraft and by the Langmuir Probe and
Andrews, David J.,, V. Truhlik, A. J. Kopf, Andersson, L.,, Fowler, C. M.,, C. M. Fowler, L. Andersson, D. D. Morgan, Morgan, D. D.,, Kopf, A. J.,, D. A. Gurnett, D. J. Andrews, Truhlik, V.,, Nemec, F.,, Gurnett, D. A.,, F. Němec   +15 more
core   +1 more source