Results 71 to 80 of about 1,041 (168)

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

The equatorial counter electrojet: Part of a worldwide current system?

Geophysical Research Letters, 2002
The method of natural orthogonal components was applied to the ground geomagnetic data in the Central Asian sector (72–83°E), during the summer months of 1995, in an attempt to identify additional current systems that are superposed on the normal Sq current vortex and related to the equatorial counter electrojet (CEJ).
openaire   +1 more source

Longitudinal Difference in Magnetic Field Variations Associated with Quiet Day Counter Electrojet.

Journal of geomagnetism and geoelectricity, 1993
Significant features of a rare sequence of noon-time counter electrojet events in the Indian sector are analysed. They are compared with records from nearby electrojet stations in the east and west to show the limited longitudinal extent of the noon-time CEJ. It is also shown that quiet-time CEJ is not altogether controlled by lunar tidal oscillations.
G. K. Rangarajan, R. G. Rastogi
openaire   +2 more sources

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

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

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

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

Comparative Evaluation of Microleakage With Total-Etch, Universal (Self-Etch Mode), and Nano Adhesive Systems in Class V Composite Restorations: An In-Vitro Study. [PDF]

Cureus, 2023
Singh S, Bhadauria US, Sharma A, Verma Mathur R.   +3 more
europepmc   +1 more source