Results 71 to 80 of about 13,690 (192)
Geomagnetism : review 2009 [PDF]
, 2010 The Geomagnetism team measures, records, models and interprets variations in the Earth’s natural magnetic fields, across the world and over time. Our data and expertise help to develop scientific understanding of the evolution of the solid Earth and its ...
Thomson, Alan W.P.
core
A Neural Network Model of Equatorial Electric Field Structures in the Inner Magnetosphere
Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.Abstract Enabled by state‐of‐the‐art electric field measurements from the Van Allen Probes and careful calibration of the high‐quality data, we developed the first machine‐learning based inner‐magnetosphere electric field model, which covers L = 2.5–6.0 within 20° ${}^{\circ}$ around the magnetic equator.
M. Hua +6 more
wiley +1 more source
Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.Abstract The mesospheric semiannual oscillation (MSAO) in tropical zonal‐mean zonal winds exhibits a strong westward phase around March equinox. It has been thought that the migrating diurnal tide (DW1) plays a role in the initiation of this phase because DW1 peaks around this time and satellite observations have shown it to undergo wave breaking.
Christopher S. Krier +2 more
wiley +1 more source
Estimating the extremes in European geomagnetic activity [PDF]
, 2009 Rapidly changing geomagnetic field variations constitute a natural hazard, for example in navigation and, through geomagnetically induced currents, to power grids and pipeline networks.
Dawson, Ewan, Reay, Sarah, Thomson, Alan
core
Recurrence plot statistics and the effect of embedding
, 2005 Recurrence plots provide a graphical representation of the recurrent patterns in a timeseries, the quantification of which is a relatively new field. Here we derive analytical expressions which relate the values of key statistics, notably determinism and
Bernstein +30 more
core +2 more sources
Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.Abstract Field‐line curvature scattering (FLCS) is believed to be the primary mechanism forming electron isotropy boundaries (IB) and can rapidly scatter relativistic electrons from the outer radiation belt. However, its direct and quantitative impact on controlling outer belt electron lifetimes has never been directly assessed.
Man Hua +17 more
wiley +1 more source
, 2018 Magnetic storms are the most prominent global manifestations of out-of-equilibrium magnetospheric dynamics. Investigating the dynamical complexity exhibited by geomagnetic observables can provide valuable insights into relevant physical processes as well
Balasis, Georgios +5 more
core +1 more source
Analyzing Geomagnetic Data From the Dusheti Observatory During the Intense Magnetic Storms of 2024
Earth and Space Science, Volume 13, Issue 2, February 2026.Abstract Geomagnetic storms, intense disturbances in the Earth's magnetosphere, pose risks to both technology and human activity in space. In this study, we analyzed geomagnetic field measurements from the Dusheti Observatory in Georgia during the intense geomagnetic storms of March 3, March 24, and 11 May 2024.
Oleg Kharshiladze +6 more
wiley +1 more source
The aspects of K-index calculation at Russian Geomagnetic Observatories
Russian Journal of Earth Sciences, 2020 One of the most widely used indices of geomagnetic activity is the K" role="presentation ...
Petrov Valery G , Krasnoperov Roman I
doaj +1 more source
Applying Hpo Indices to Empirical Thermospheric Density Models During Geomagnetic Storms
Earth and Space Science, Volume 13, Issue 2, February 2026.Abstract Accurate atmospheric drag modeling is essential for precise orbit determination and prediction of Low Earth Orbit satellites. A key component is the thermospheric density, typically estimated using empirical models driven by geomagnetic activity indices such as the 3‐hr Kp or ap.
Kemin Zhu +5 more
wiley +1 more source