Results 61 to 70 of about 5,979 (206)

Equatorial electrojet at African longitudes: first results from magnetic measurements [PDF]

Annales Geophysicae, 1998
In the framework of the French participation in the International Equatorial Electrojet Year (IEEY), ten magnetotelluric stations were installed between November 1992 and November 1994 along a 1200-km-long meridian profile, between Lamto (latitude 6.2°
V. Doumouya, J. Vassal, Y. Cohen, O. Fambitakoye, M. Menvielle   +4 more
doaj   +1 more source

Jupiter's polar ionospheric flows: measured intensity and velocity variations poleward of the main auroral oval [PDF]

, 2003
Recent analysis of high-resolution spectra of Doppler-shifted H3+ emission from the auroral/polar regions of Jupiter revealed a complex wind system, with a persistent auroral electrojet and strong anti-sunward flows in a region of lesser intensity ...
Bunce, E.J., Cowley, S.W.H., Miller, S., Stallard, T.S.   +3 more
core  

Enhanced Radiation Exposure of Airline Crew and Passengers During the May 2024 Geomagnetic Storm

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract Enhanced radiation at aviation altitudes is a concern for flight crew and passengers. During space weather events, solar flares and coronal mass ejection (CME) driven shocks are sources of energetic particles that can reach Earth's near‐space environment and interact with its magnetic field and atmosphere.
Homayon Aryan, Jacob Bortnik, W. Kent Tobiska, Piyush Mehta, Benjamin Hogan, Rashmi Siddalingappa, Harshitha Challa   +6 more
wiley   +1 more source

Longitudinal Variability of Pre‐Midnight Equatorial Plasma Bubbles Under Disturbed Geomagnetic Conditions

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract Equatorial plasma bubbles (EPBs) pose significant challenges to trans‐ionospheric radio communication and navigation systems. Because of their disruptive effects, evaluating and predicting them is key for the development of space systems. The influence of geomagnetic activity on EPBs remains unclear, partly due to limited low‐latitude neutral ...
Gilda de Lourdes González, Thomas J. Immel, Yen‐Jung Wu, L. Claire Gasque, Brian J. Harding, Colin Triplett, Cesar E. Valladares   +6 more
wiley   +1 more source

Electro-jet engine: a jet engine without turbine - Part 1. Presentation of electro-jet engine [PDF]

INCAS Bulletin
In accordance with efficiency criteria, the development of air transport has to the option of using large passenger airplanes, with capacities ranging from 200 to over 800 passengers and masses ranging from 100 to over 500 tons. These airplanes require a
Sorin NUTU
doaj   +1 more source

Testing the SOC hypothesis for the magnetosphere [PDF]

, 2000
As noted by Chang, the hypothesis of Self-Organised Criticality provides a theoretical framework in which the low dimensionality seen in magnetospheric indices can be combined with the scaling seen in their power spectra and the recently-observed plasma ...
Angelopoulos, Angelopoulos, Aschwanden, Bak, Bak, Bak, Bak, Baker, Baker, Baker, Bargatze, Bendat, Boffetta, Cardy, Carreras, Chang, Chang, Chapman, Chapman, Consolini, Davis, Dendy, Dendy, Einaudi, Freeman, Freeman, Grassberger, Hastings, Horbury, Horton, Horton, Huang, Hwa, Jensen, Jensen, Kamide, Katz, Klimas, Klimas, Lichtenberg, Lu, M.P Freeman, Malamud, N.W Watkins, Osborne, Palmer, Pedrosa, Pelletier, Pinho, R.O Dendy, Roberts, Rodríguez-Iturbe, Rowlands, S.C Chapman, Takalo, Takalo, Takalo, Tsurutani, Uritsky, Vassiliadis, Vörös, Vörös, Watkins, Zapperi, Zelenyi   +64 more
core   +2 more sources

Role of Large‐Scale Traveling Ionospheric Disturbances in the Positive Storm Phase Observed by the Millstone Hill Radar and GNSS TEC Measurements

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract A moderate geomagnetic storm was driven by high‐speed solar wind stream on 14 March 2016. We show that large‐scale traveling ionospheric disturbances (LSTIDs) played a significant role in producing the ionospheric storm positive phase at mid‐latitudes in the North American sector.
G. P. Geethakumari, A. T. Aikio, L. Cai, H. Vanhamäki, I. I. Virtanen, A. Coster, A. Maute, A. Marchaudon, P.‐L. Blelly   +8 more
wiley   +1 more source

Spiral structures and regularities in magnetic field variations and auroras [PDF]

History of Geo- and Space Sciences, 2012
The conception of spiral shaped precipitation regions, where solar corpuscles penetrate the upper atmosphere, was introduced into geophysics by C. Störmer and K. Birkeland at the beginning of the last century.
Y. I. Feldstein, L. I. Gromova, M. Förster, A. E. Levitin   +3 more
doaj   +1 more source

Spatial frequencies associated with the latitudinal structures of ionospheric currents seen by CHAMP satellite

, 2015
The CHAMP magnetic field variations during international quiet days of low solar activity period 2008-2009 are investigated. The present paper reports the existence of frequency-peaks < 20 mHz in the compressional component of the magnetic field in ...
Sinha, A. K., Thomas, Neethal, Vichare, Geeta   +2 more
core   +1 more source

Statistical Auroral Absorption Model Parameterized by AE Index

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract Energetic electron precipitation, often in association with enhanced geomagnetic activity, leads to increased D‐region ionization in the auroral region causing auroral absorption. A statistical auroral absorption model is presented for high‐latitudes (poleward of 50° magnetic latitude) based on data collected from 2010 to 2019 from 13 wide ...
R. A. D. Fiori, T. G. Cameron, J. Issa, A. Hupé, L. Huang   +4 more
wiley   +1 more source