Results 71 to 80 of about 118,766 (238)
Numerical modeling of the equatorial electrojet UT-variation on the basis of the model GSM TIP [PDF]
Advances in Radio Science, 2007 In the presented work the results of numerical modeling of the UT-variation of the equatorial electrojet, executed on the basis of the model GSM TIP are presented, taking into account the dynamo electric fields generated by thermospheric winds in a ...
M. V. Klimenko +2 more
doaj
Earth, Planets and Space, 2022 The occurrence characteristics of 150-km echoes in low-latitude regions are studied using the Equatorial Atmosphere Radar (EAR) in Indonesia. The long-term observation of the 150-km echoes by the EAR enables us to study the occurrence characteristics of ...
Tatsuhiro Yokoyama +2 more
doaj +1 more source
Interplanetary magnetic field and the equatorial ionosphere
, 1974 With the increase of the southward component of the interplanetary magnetic field, the magnitude of the east-west drift speed in the F-region of the ionosphere at Thumba, close to the magnetic equator, decreases for the daytime as well as for the ...
Chandraa, H., Rastogi, R. G.
core +1 more source
Quantifying Non‐Maxwellian Properties of Ion Populations During Reconnection at Earth's Magnetopause
Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.Abstract We investigate ion velocity‐space features within the exhaust of magnetopause reconnection using a global hybrid‐Vlasov simulation. The Hermite transform and Gaussian Mixture Model (GMM) are applied to quantify the complexity of velocity‐space structures that arise during the mixing of magnetospheric and magnetosheath ion populations.
I. Zaitsev +7 more
wiley +1 more source
Appraisal of electromagnetic induction effects on magnetic pulsation studies [PDF]
Annales Geophysicae, 2001 The quantification of wave polarization characteristics of ULF waves from the geomagnetic field variations is done under ‘a priori’ assumption that fields of internal induced currents are in-phase with the external inducing fields.
B. R. Arora +5 more
doaj +1 more source
An equatorial ionospheric current system.
Journal of geomagnetism and geoelectricity, 1985 From the analysis of the external components of the equinoctial geomagnetic daily variation in Peru it follows that they are generated by a complex current system. In this work it is found that in addition to the global current system and the main electrojet, with I0=0.124Amp/m, it is necessary to include two secondary lateral currents parallel to the ...
ROMANELLI, L., HIRSCH, F. A.
openaire +2 more sources
Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.Abstract Ultra‐low‐frequency waves in the magnetosphere often produce field line resonances with strong spatial gradients in wave amplitude. We analyze a form of drift resonance driven by these gradients near the resonant field line. This mechanism differs fundamentally from conventional gradient‐ and curvature‐driven drift resonance and predicts an ...
J. Liu +4 more
wiley +1 more source
Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.Abstract Along the flank magnetopause, magnetosheath flow interfaced with the relatively stationary magnetosphere produces strong flow shears, and the Kelvin‐Helmholtz instability (KHI) occurs. When the interplanetary magnetic field (IMF) is southward, anti‐parallel day‐side reconnection and KHI can interact, which may enhance the reconnection rate as ...
Brandon L. Burkholder +7 more
wiley +1 more source
Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.Abstract Quantifying energetic electron precipitation is essential for understanding ring current and radiation belt loss, as well as magnetosphere‐ionosphere‐atmosphere coupling. The count rate ratio between the 90° and 0° telescopes (CR90/CR0) on POES/MetOp satellites is a commonly used proxy for precipitation and pitch‐angle diffusion rates (DW ${D ...
Weichao Tu, Zhi‐Gu Li
wiley +1 more source
Automatic GNSS Coordinate Time Series Analysis for Very Large Networks
Earth and Space Science, Volume 13, Issue 10, October 2026.Abstract We present a new algorithm, AutoCF, for automatically constructing coordinate functions (CFs) for continuously operating GNSS reference stations (CORSs). The iterative algorithm alternates between application of LASSO and Ridge Regression methods, with hyperparameters successively tightened with each iteration to more judiciously scrutinize ...
Richard A. Bennett +3 more
wiley +1 more source