Results 71 to 80 of about 184,127 (275)

Regional Three‐Dimensional Magnetotelluric Electrical Resistivity Model of the Manica Greenstone Belt, Western Mozambique

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 1, January 2026.
Abstract Magnetotelluric (MT) survey results from the Late Archean Manica greenstone belt, an extension of the Odzi‐Mutare greenstone belt of the Zimbabwe Craton, are presented. A total of 33 MT stations were acquired on an irregular grid with an average station spacing of approximately 5 km.
Joao Jr. J. Castelo, Thorkild M. Rasmussen, Maxim Smirnov, Salvador Mondlane Jr., Daud Liace Jamal   +4 more
wiley   +1 more source

Modeling of kilometer-scale ionospheric irregularities at Mars

Earth and Planetary Physics, 2022
Recently, kilometer-scale Martian ionospheric irregularities have been measured by the Mars Atmosphere and Volatile EvolutioN (MAVEN) mission (Fowler et al., 2020).
ChunHua Jiang, Rong Tian, LeHui Wei, GuoBin Yang, ZhengYu Zhao   +4 more
doaj   +1 more source

Structure of Jupiter's High‐Latitude Storms: Folded Filamentary Regions Revealed by Juno

Journal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract Sprawling, turbulent cloud formations dominate the meteorology of Jupiter's mid‐to‐high latitudes, known as Folded Filamentary Regions (FFRs). A multi‐wavelength characterization by Juno reveals the spatial distribution, vertical structure, and energetics of the FFRs.
L. N. Fletcher, Z. Zhang, S. Brown, F. A. Oyafuso, J. H. Rogers, M. H. Wong, A. Mura, G. Eichstädt, G. S. Orton, S. Brueshaber, R. Sankar, C. Li, S. M. Levin, F. Biagiotti, T. Guillot, A. P. Ingersoll, D. Grassi, C. J. Hansen, S. Bolton, J. H. Waite   +19 more
wiley   +1 more source

Mapping ionospheric backscatter measured by the SuperDARN HF radars - Part 1: A new empirical virtual height model [PDF]

, 2008
Accurately mapping the location of ionospheric backscatter targets (density irregularities) identified by the Super Dual Auroral Radar Network (SuperDARN) HF radars can be a major problem, particularly at far ranges for which the radio propagation paths ...
Chisham, G., Sofko, G. J., Yeoman, T. K.
core  

Scintillation effects in the magnetized plasma [PDF]

, 2019
Statistical characteristics of scattered electromagnetic waves in the turbulent magnetized plasma caused by electron density fluctuations are calculated using complex geometrical optics approximation taking into account both diffraction effects and ...
Ishimaru, Akira, Jandieri, George, Lesňák, Michal, Pištora, Jaromír   +3 more
core   +1 more source

Ionospheric Disturbances and Irregularities During the 25–26 August 2018 Geomagnetic Storm

Journal of Geophysical Research: Space Physics, 2021
We use ground‐based (GNSS, SuperDARN, and ionosondes) and space‐borne (Swarm, CSES, and DMSP) instruments to study ionospheric disturbances due to the 25–26 August 2018 geomagnetic storm.
E. Astafyeva, Yury V. Yasyukevich, B. Maletckii, A. Oinats, A. Vesnin, A. Yasyukevich, S. Syrovatskii, N. Guendouz   +7 more
semanticscholar   +1 more source

The First Results of Ionospheric Skywave Propagation Experiment Over Taiwan

Radio Science, Volume 61, Issue 1, January 2026.
Abstract An ionospheric over‐the‐horizon propagation experiment was carried out in Taiwan to investigate characteristics of ionospheric F layer skywave propagation at frequencies 4–12 MHz. Experimental results show that there are prominent diurnal variations in the incident angle, virtual height and plasma frequency at reflection height, which are ...
Hung‐Shi Lin, Ching‐Lun Su, Kang‐Hung Wu, Yen‐Hsyang Chu   +3 more
wiley   +1 more source

The implications of ionospheric disturbances for precise GNSS positioning in Greenland

Journal of Space Weather and Space Climate, 2022
Ionospheric irregularities impair Global Navigation Satellite System (GNSS) signals and, in turn, affect the performance of GNSS positioning. Such effects are especially evident at low and high latitudes, which are currently gaining the attention of ...
Paziewski Jacek, Høeg Per, Sieradzki Rafal, Jin Yaqi, Jarmolowski Wojciech, Hoque M. Mainul, Berdermann Jens, Hernandez-Pajares Manuel, Wielgosz Pawel, Lyu Haixia, Miloch Wojciech J., Orús-Pérez Raul   +11 more
doaj   +1 more source

Ionospheric effects during first 2 hours after the Chelyabinsk meteorite impact [PDF]

, 2013
This paper presents the analysis of ionospheric effects in the region close to the Chelyabinsk meteorite explosion at 03:20UT 2013 February 15 from the Institute of Solar-Terrestrial Physics of Siberian Branch of Russian Academy of Sciences (ISTP SB RAS)
Berngardt, O. I., Grigorieva, S. A., Kurkin, V. I., Kusonski, O. A., Zherebtsov, G. A.   +4 more
core  

Characterizing North‐South Ionospheric Gradients During Geomagnetic Storms: A Variogram Enhancement for Wide Area Ionospheric Models

Space Weather, Volume 24, Issue 1, January 2026.
Abstract The intensified solar maximum of Cycle 25 has heightened space weather risks to Global Navigation Satellite Systems (GNSS), where geomagnetic storms critically challenge Positioning, Navigation, and Timing (PNT) availability. Current wide‐area ionospheric models may fail to resolve extreme latitudinal Total Electron Content (TEC) gradients ...
Tong Liu, Yiping Jiang, Bo Chen, Jian Liu, Yufang He, Wu Chen   +5 more
wiley   +1 more source