A record of the geomagnetic field on the ground sometimes shows smooth daily variations
on the order of a few tens of nano teslas. These daily variations, commonly known as Sq, are …

Ionospheric electrodynamics depends, among other things, on the conductivity of the
ionosphere and on the strength of thermospheric winds. The theory of ionospheric …

High-precision magnetic measurements taken by LEO satellites (flying at altitudes between
300 and 800 km) allow for studying the ionospheric and magnetospheric processes and …

The atmospheric tide at ionospheric heights is composed of those locally generated and
those propagated from below. The role of the latter in producing the variability of the daytime …

The climatology of the equatorial electrojet during periods of enhanced geomagnetic activity
is examined using long‐term records of ground‐based magnetometers in the Indian and …

A quantitative comparison of the geomagnetic lunar tide and lower stratospheric parameters
(zonal mean air temperature T and zonal mean zonal wind U) is carried out for the period …

Using the equatorial electrojet (EEJ) peak current intensity as deduced from CHAMP
magnetic observations from the years 2001 through 2009, we investigated the relationship …

The ionospheric response and the associated mechanisms to geomagnetic storms are very
complex, particularly during the February 2014 multiphase geomagnetic storm. In this paper …

Based on magnetic field data sampled by the Swarm satellite constellation it is possible for
the first time to determine uniquely F region currents at low latitudes. Initial results are …

It has been known for a long time that the equatorial electrojet varies from day to day even
when solar and geomagnetic activities are very low. The quiet time day‐to‐day variation is …