Exact(1)
Firstly, a combination of tidal modes, in particular the (1, −2), (2, 2), and (2, 4) modes, could generate the reverse current at the magnetic equator, causing the negative perturbation in the ground magnetic field variations (Stening 1977; Marriot et al. 1979; Singh and Cole 1987; Gurubaran 2002).
Similar(59)
Strong trade winds drive warm surface waters west along the equator, causing an upwelling of cold water in the east.
The sudden positive effects of the EIA, in terms of increasing the peak and widening the width, during storm events of 06 April 2011, 09 March 2012 and 01 October 2012 were observed dominantly due to prompt penetration electric fields to the magnetic equator, which were caused by a southward turning of the interplanetary magnetic field (Bz).
From the rate of increase in h'F at the magnetic equator, we estimated vertical drift caused by eastward electric fields during the PRE period.
The daytime E-W electric fleld in the E -region at low latitudes is communicated to the F -region over the magnetic equator via the highly conducting geomagnetic field lines, causing a vertical upward E × B force on the plasma in the F-region.
The weakened daytime eastward electric field might suppress the fountain effect, and cause a density increase at the magnetic equator.
The salient features of the CEJ are: Gouin (1962) and Gouin and Mayaud (1967) defined a CEJ as a narrow band of currents flowing westward within the latitudes of the normal eastward EEJ currents, which causes depressions in ΔH near the magnetic equator (on a quiet day).
In fact, at these local times, the zonal electric field is westward and gives rise to a reverse fountain causing an increase of electron density around the magnetic equator, according to the mechanism proposed by Balan and Bailey (1995).
Incidental deviations are most probably caused by problems in determination of the true magnetic equator, which is shown by using different magnetic field models.
Rocks formed at the magnetic equator, for example, contain a horizontal magnetization.
While Chumphon is close to the magnetic equator (Geomagnetic dip latitude +3.0°N), Chiang Mai is located at the northern anomaly crest (Geomagnetic dip latitude +12.7°N), causing higher NmF2 median values at Chiang Mai.
Write better and faster with AI suggestions while staying true to your unique style.
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com