Results 81 to 90 of about 501,910 (164)

Multiple‐Event Study of Substorm Electric Field Penetration Into Middle Latitudes Based on Simultaneous Observation of 630‐nm Airglow Enhancements at Three Stations

Journal of Geophysical Research: Space Physics, Volume 130, Issue 10, October 2025.
Abstract It is known that convection electric fields develop in the polar region associated with substorm onset, and a westward electric field penetrates to lower latitudes on the night side. Two‐dimensional observations of 630‐nm airglow enhancements associated with the westward electric field can be conducted using all‐sky cameras at middle latitudes.
S. Morita, K. Shiokawa, Y. Otsuka, N. Nshitani, A. Shinbori, A. Fujimoto, A. Yoshikawa, M. Nishioka, S. Perwitasari, M. Yamamoto, T. Sori   +10 more
wiley   +1 more source

Daytime Thermospheric Wind Transients and Circulation in May 2021

Journal of Geophysical Research: Space Physics, Volume 130, Issue 10, October 2025.
Abstract Changes in the thermospheric wind originating in storm‐time transients in high‐latitude Joule heating and ion circulation are effective in modifying conditions throughout Earth's upper atmosphere and ionosphere. Among the effects these drivers can produce are large‐scale gravity waves (GWs), characterized by significant wind transients that ...
Thomas J. Immel, Lily Oglesby, Brian J. Harding, Astrid Maute, Yen‐Jung Wu, Romina Nikoukar, Colin Triplett   +6 more
wiley   +1 more source

2‐Day Ionospheric Oscillations at Low Latitudes Due To an Ultra‐Fast Kelvin Wave

Earth and Space Science
This study establishes an observational connection between an ultra‐fast Kelvin wave (UFKW) and the occurrence of counter electrojet (CEJ) in the equatorial E region and planetary wave‐like oscillations in low‐latitude total electron content (TEC), based
Ashish P. Jadhav, Yosuke Yamazaki, S. Gurubaran, Kaoru Sato, Dai Koshin   +4 more
doaj   +1 more source

Scaling in the space climatology of the auroral indices: Is SOC the only possible explanation ? [PDF]

, 2002
The study of the robust features of the magnetosphere is motivated both by new "whole system" approaches, and by the idea of "space climate" as opposed to "space weather".
Watkins, Nicholas
core   +2 more sources

On the Behavior of Thermospheric O1D 630.0 nm Dayglow Emission during Counter Electrojet Events

Advances in Space Research, 2022
C. Vineeth, K.M. Ambili, T. Pant
semanticscholar   +1 more source

The Day‐To‐Day Variability of the Dayside Equatorial Ionospheric Plasma Drifts and Neutral Winds Observed by ICON

Geophysical Research Letters
In this study, we utilize ICON observations from 2019 to 2022 to analyze the variability of vertical plasma drift and its relationship with the neutral winds. The results reveal that there are 19% of downward plasma drifts at 13–17 LT, which changes with
Ruilong Zhang, Libo Liu, Yiding Chen, Huijun Le   +3 more
doaj   +1 more source

Investigating the auroral electrojets with low altitude polar orbiting satellites [PDF]

, 2002
International audienceThree geomagnetic satellite missions currently provide high precision magnetic field measurements from low altitude polar orbiting spacecraft.
Lu, G., Moretto, T., Olsen, N., Ritter, P.   +3 more
core   +2 more sources

A Method to Retrieve Aeronomic Parameters From Noontime Bottom‐Side Equatorial Ne(h) and Satellite Neutral Density Observations

Space Weather
A new method has been proposed to retrieve neutral composition ([O] [O2], [N2]), exospheric temperature (Tex), vertical ExB plasma drift, and total solar EUV flux (λ ≤ 1050Å) using Digisonde DPS‐4 daytime bottom‐side (≥200 km) Ne(h) profiles and ...
L. Perrone, A. V. Mikhailov
doaj   +1 more source

The impact of the Hunga Tonga–Hunga Ha’apai volcanic eruption on the Peruvian atmosphere: from the sea surface to the ionosphere

Earth, Planets and Space
The eruption of the Hunga Tonga Hunga Ha’apai volcano on 15 January 2022 significantly impacted the lower and upper atmosphere globally. Using multi-instrument observations, we described disturbances from the sea surface to the ionosphere associated with
E. E. Pacheco, J. P. Velasquez, R. Flores, L. Condori, G. Fajardo, K. Kuyeng, D. E. Scipion, M. Milla, J. F. Conte, F. L. Poblet, J. L. Chau, J. Suclupe, R. Rojas, E. Manay   +13 more
doaj   +1 more source

The Ionospheric Connection Explorer - Prime Mission Review. [PDF]

Space Sci Rev, 2023
Immel TJ, England SL, Harding BJ, Wu YJ, Maute A, Cullens C, Englert CR, Mende SB, Heelis RA, Frey HU, Korpela EJ, Stephan AW, Frey S, Stevens MH, Makela JJ, Kamalabadi F, Triplett CC, Forbes JM, McGinness E, Gasque LC, Harlander JM, Gérard JC, Hubert B, Huba JD, Meier RR, Roberts B.   +25 more
europepmc   +1 more source