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Journal articles on the topic 'Equatorial electrojetc'

Author: Grafiati

Published: 6 September 2023

Last updated: 31 July 2025

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1

Rastogi, R. G. "Meridional equatorial electrojet current in the American sector." Annales Geophysicae 17, no. 2 (1999): 220–30. http://dx.doi.org/10.1007/s00585-999-0220-4.

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Abstract. Huancayo is the only equatorial electrojet station where the daytime increase of horizontal geomagnetic field (H) is associated with a simultaneous increase of eastward geomagnetic field (Y). It is shown that during the counter electrojet period when ∆H is negative, ∆Y also becomes negative. Thus, the diurnal variation of ∆Y at equatorial latitudes is suggested to be a constituent part of the equatorial electrojet current system. Solar flares are known to increase the H field at an equatorial station during normal electrojet conditions (nej). At Huancayo, situated north of the magnet

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2

Reddy, C. A. "The equatorial electrojet." Pure and Applied Geophysics PAGEOPH 131, no. 3 (1989): 485–508. http://dx.doi.org/10.1007/bf00876841.

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3

Klimenko, M. V., V. V. Klimenko, and V. V. Bryukhanov. "Numerical modeling of the equatorial electrojet UT-variation on the basis of the model GSM TIP." Advances in Radio Science 5 (June 13, 2007): 385–92. http://dx.doi.org/10.5194/ars-5-385-2007.

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Abstract. 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 current-carrying layer of the ionosphere at heights 80–175 km above a surface of the Earth. To the Global Self-consistent Model of the Thermosphere, Ionosphere and Protonosphere (GSM TIP), developed in WD IZMIRAN, a new block for the calculation of electric fields in the ionosphere has been added. In this block the solution of the three-di

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4

Ugwu, Ernest Benjamin Ikechukwu, and Christopher Ekene Okeke. "On the Variation of Geomagnetic H-Component during Solar Quiet Days." European Journal of Applied Physics 3, no. 2 (2021): 11–15. http://dx.doi.org/10.24018/ejphysics.2021.3.2.35.

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The hourly variation of the H-component of the geometric field from two equatorial electrojet stations, Huancayo and Addis Ababa, and one non-equatorial electrojet station, Alibag, were studied to find out the trend of solar quiet variation of H for the year 2008. The dH amplitudes of the electrojet stations showed enhancement in H, while there was no enhancement in the non-electrojet station which was located far away from the dip equator. The day-to-day monthly diurnal variation was, however, observed in all the three stations. Also, at nighttime, the dH amplitudes of all the stations were n

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5

Stening, Robert J. "Modeling the equatorial electrojet." Journal of Geophysical Research 90, A2 (1985): 1705. http://dx.doi.org/10.1029/ja090ia02p01705.

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6

Akiyama, T., A. Yoshikawa, A. Fujimoto, and T. Uozumi. "Relationship between plasma bubble and ionospheric current, equatorial electrojet, and equatorial counter electrojet." Journal of Physics: Conference Series 1152 (January 2019): 012022. http://dx.doi.org/10.1088/1742-6596/1152/1/012022.

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7

Abdu, M. A. "The international equatorial electrojet year." Eos, Transactions American Geophysical Union 73, no. 5 (1992): 49. http://dx.doi.org/10.1029/91eo00044.

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8

Rastogi, R. G. "Critical problems of equatorial electrojet." Advances in Space Research 12, no. 6 (1992): 13–21. http://dx.doi.org/10.1016/0273-1177(92)90035-v.

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9

Stening, R. J. "What drives the equatorial electrojet?" Journal of Atmospheric and Terrestrial Physics 57, no. 10 (1995): 1117–28. http://dx.doi.org/10.1016/0021-9169(94)00127-a.

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10

Kobea, A. T., C. Amory-Mazaudier, J. M. Do, et al. "Equatorial electrojet as part of the global circuit: a case-study from the IEEY." Annales Geophysicae 16, no. 6 (1998): 698–710. http://dx.doi.org/10.1007/s00585-998-0698-1.

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Abstract. Geomagnetic storm-time variations often occur coherently at high latitude and the day-side dip equator where they affect the normal eastward Sq field. This paper presents an analysis of ground magnetic field and ionospheric electrodynamic data related to the geomagnetic storm which occured on 27 May 1993 during the International Equatorial Electrojet Year (IEEY) experiment. This storm-signature analysis on the auroral, mid-latitude and equatorial ground field and ionospheric electrodynamic data leads to the identification of a sensitive response of the equatorial electrojet (EEJ) to

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11

Bolaji, Olawale, Oluwafisayo Owolabi, Elijah Falayi, et al. "Observations of equatorial ionization anomaly over Africa and Middle East during a year of deep minimum." Annales Geophysicae 35, no. 1 (2017): 123–32. http://dx.doi.org/10.5194/angeo-35-123-2017.

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Abstract. In this work, we investigated the veracity of an ion continuity equation in controlling equatorial ionization anomaly (EIA) morphology using total electron content (TEC) of 22 GPS receivers and three ground-based magnetometers (Magnetic Data Acquisition System, MAGDAS) over Africa and the Middle East (Africa–Middle East) during the quietest periods. Apart from further confirmation of the roles of equatorial electrojet (EEJ) and integrated equatorial electrojet (IEEJ) in determining hemispheric extent of EIA crest over higher latitudes, we found some additional roles played by thermos

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12

Rastogi, R. G. "Morphological aspects of a new type of counter electrojet event." Annales Geophysicae 17, no. 2 (1999): 210–19. http://dx.doi.org/10.1007/s00585-999-0210-6.

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Abstract. The study describes the time and space morphologies of a rather new type of counter electrojet event on the basis of data from the excellent chain of magnetic and ionospheric observatories along the Indo-Russian longitude sector. Abnormally large westward currents are observed during almost the whole of the daytime hours on a series of days. These events do not form any vortices in the current system and do not apparently seem to be associated with tidal effects or any solar magnetosphere events or geomagnetic disturbances. The existence of a westward electric field over the equatori

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13

Manju, G., T. K. Pant, C. V. Devasia, S. Ravindran, and R. Sridharan. "Electrodynamical response of the Indian low-mid latitude ionosphere to the very large solar flare of 28 October 2003 – a case study." Annales Geophysicae 27, no. 10 (2009): 3853–60. http://dx.doi.org/10.5194/angeo-27-3853-2009.

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Abstract. The electrodynamic effects on the low-mid latitude ionospheric region have been investigated using GPS (global positioning system) data, ionosonde data and ΔH values, during the very large solar flare (X17.2/4B) of 28 October 2003. The results bring out the flare induced unusual behaviour of the equatorial ionosphere on this day just prior to sunset. The important observations are i) Large and prolonged Ne enhancements observed from ionosonde data just after the flare-related peak enhancement in EUV flux. The observed enhancement in Ne is due to the increase in ionization production

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14

Doumouya, V., and Y. Cohen. "Improving and testing the empirical equatorial electrojet model with CHAMP satellite data." Annales Geophysicae 22, no. 9 (2004): 3323–33. http://dx.doi.org/10.5194/angeo-22-3323-2004.

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Abstract. The longitudinal variation of the Equatorial Electrojet (EEJ) intensity has been revised including data from the equatorial station of Baclieu (Vietnam), where an unexpected enhancement of the EEJ magnetic effects is observed. The features of this longitudinal variation were also obtained with the CHAMP satellite, except in the Pacific and Atlantic Oceans, where no ground level data points were available.The EEJ magnetic signatures recorded on board the CHAMP satellite have been isolated for 325 passes in different longitude sectors around local noon. The results have been compared w

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15

Rastogi, R. G., and N. B. Trivedi. "Asymmetries in the equatorial electrojet around N-E Brazil sector." Annales Geophysicae 27, no. 3 (2009): 1233–49. http://dx.doi.org/10.5194/angeo-27-1233-2009.

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Abstract. The paper examines the data of geographic northward (X), eastward (Y) and vertical (Z) components of the magnetic field from a dense array of 26 vector magnetometers operated in N-NE Brazil from November 1990 to March 1991. As expected, the daily variation of X showed a minor maximum around 03:00–04:00 LT and a major maximum around 12:00 LT. The daily range of ΔY showed a strong minimum around noon at all stations. The combined ΔY and ΔX indicated the direction of the equatorial electrojet currents to be flowing along 25° north of east at the centre and 20° north of east at the edges

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16

Muniz Barreto, L. "The Equatorial Electrojet: A brief review." Geofísica Internacional 31, no. 2 (1992): 115–20. http://dx.doi.org/10.22201/igeof.00167169p.1992.31.2.576.

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Se presenta un breve resumen del descubrimiento del electrochorro ecuatorial (EEJ) y la importancia de América del Sur en la investigación del EEJ. Se discuten algunas cuestiones resueltas y no resueltas sobre el EEJ y el "contraelectrochorro" (CEJ) basado en una descripción de posibles peculiaridades del EEJ en Sudamérica. Se resume el trabajo observacional en Brasil y se incluye una versión breve de los programas de investigación del EEJ en Brasil y Perú. También se dan los lineamientos de un posible programa de cooperación latinoamericana sobre los efectos del EEJ durante el eclipse total d

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17

BHARGAVA, B. N. "A note on the equatorial electrojet." MAUSAM 15, no. 1 (2022): 98–100. http://dx.doi.org/10.54302/mausam.v15i1.5526.

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18

ONWUMECHILI, C. A. "Satellite measurements of the equatorial electrojet." Journal of geomagnetism and geoelectricity 37, no. 1 (1985): 11–36. http://dx.doi.org/10.5636/jgg.37.11.

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19

ONWUMECHILI, C. A., and P. C. OZOEMENA. "Latitudinal extent of the equatorial electrojet." Journal of geomagnetism and geoelectricity 37, no. 2 (1985): 193–204. http://dx.doi.org/10.5636/jgg.37.193.

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20

Sastry, T. S., and S. V. S. Sarma. "Equatorial Counter-Electrojet and Magnetic Pulsations." Journal of geomagnetism and geoelectricity 49, no. 10 (1997): 1247–51. http://dx.doi.org/10.5636/jgg.49.1247.

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21

Rastogi, R. G. "Electromagnetic induction by the equatorial electrojet." Geophysical Journal International 158, no. 1 (2004): 16–31. http://dx.doi.org/10.1111/j.1365-246x.2004.02128.x.

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22

Onwumechili, C. A., and P. C. Ozoemena. "Contours of equatorial electrojet current density." Journal of Atmospheric and Terrestrial Physics 51, no. 3 (1989): 163–68. http://dx.doi.org/10.1016/0021-9169(89)90098-6.

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23

Onwumechili, C. A., and P. C. Ozoemena. "Subsolar elevation of the equatorial electrojet." Pure and Applied Geophysics PAGEOPH 131, no. 3 (1989): 509–25. http://dx.doi.org/10.1007/bf00876842.

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24

Rastogi, R. G., H. Chandra, and K. Yumuto. "Equatorial electrojet in east Brazil longitudes." Journal of Earth System Science 119, no. 4 (2010): 497–505. http://dx.doi.org/10.1007/s12040-010-0035-4.

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25

Denardini, C. M., M. A. Abdu, H. C. Aveiro, et al. "Counter electrojet features in the Brazilian sector: simultaneous observation by radar, digital sounder and magnetometers." Annales Geophysicae 27, no. 4 (2009): 1593–603. http://dx.doi.org/10.5194/angeo-27-1593-2009.

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Abstract. In the present work we show new results regarding equatorial counter electrojet (CEJ) events in the Brazilian sector, based on the RESCO radar, two set of fluxgate magnetometer systems and a digital sounder. RESCO radar is a 50 MHz backscatter coherent radar installed in 1998 at São Luís (SLZ, 2.33° S, 44.60° W), an equatorial site. The Digital sounder routinely monitors the electron density profile at the radar site. The magnetometer systems are fluxgate-type installed at SLZ and Eusébio (EUS, 03.89° S, 38.44° W). From the difference between the horizontal component of magnetic fiel

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26

YACOB, A. "The Indian equatorial electrojet in IGY and IQSY." MAUSAM 18, no. 2 (2022): 285–88. http://dx.doi.org/10.54302/mausam.v18i2.4453.

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The parameters of the Indian equatorial electrojet are obtained for the months April to August of the solar maximum year, 1958 and the solar minimum year, 1964. The half-width for the two epochs are found to be 297 km and 276 km respectively, showing only a small (change with solar activity. The total peak current intensity for 1958 is 186 A/km and for 1964 it is 97 A/km. The factor by which the normal current intensity is augmented in the electrojet is, however, found to be a little more for 1964 than for 1958.

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27

Le Mouël, J. L., P. Shebalin, and A. Chulliat. "The field of the equatorial electrojet from CHAMP data." Annales Geophysicae 24, no. 2 (2006): 515–27. http://dx.doi.org/10.5194/angeo-24-515-2006.

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Abstract. We apply a simple linear transform, the along-track second derivative, to four years of scalar and vectorial data from the CHAMP satellite. This transform, reminiscent of techniques used in the interpretation of aeromagnetic surveys, is applied either to the geocentric spherical components of the field or to its intensity. After averaging in time and space, we first produce a map of the crustal field, then maps of the equatorial electrojet field at all local times and all universal times. The seasonal variation of the electrojet, its evolution with the solar cycle, and the effect of

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28

Feldstein, Y. I., V. A. Popov, J. A. Cumnock, et al. "Auroral electrojets and boundaries of plasma domains in the magnetosphere during magnetically disturbed intervals." Annales Geophysicae 24, no. 8 (2006): 2243–76. http://dx.doi.org/10.5194/angeo-24-2243-2006.

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Abstract. We investigate variations in the location and intensity of the auroral electrojets during magnetic storms and substorms using a numerical method for estimating the equivalent ionospheric currents based on data from meridian chains of magnetic observatories. Special attention was paid to the complex structure of the electrojets and their interrelationship with diffuse and discrete particle precipitation and field-aligned currents in the dusk sector. During magnetospheric substorms the eastward electrojet (EE) location in the evening sector changes with local time from cusp latitudes (

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29

Vassal, J., M. Menvielle, Y. Cohen, et al. "A study of transient variations in the Earth's electromagnetic field at equatorial electrojet latitudes in western Africa (Mali and the Ivory Coast)." Annales Geophysicae 16, no. 6 (1998): 677–97. http://dx.doi.org/10.1007/s00585-998-0677-6.

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Abstract. In the framework of the French-Ivorian participation to the IEEY, a network of 10 electromagnetic stations were installed at African longitudes. The aim of this experiment was twofold: firstly, to study the magnetic signature of the equatorial electrojet on the one hand, and secondly, to characterize the induced electric field variations on the other hand. The first results of the magnetic field investigations were presented by Doumouya and coworkers. Those of the electric field experiment will be discussed in this study. The electromagnetic experiment will be described. The analysis

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30

Oppenheim, M. "Evidence and effects of a wave-driven nonlinear current in the equatorial electrojet." Annales Geophysicae 15, no. 7 (1997): 899–907. http://dx.doi.org/10.1007/s00585-997-0899-z.

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Abstract. Ionospheric two-stream waves and gradient-drift waves nonlinearly drive a large-scale (D.C.) current in the E-region ionosphere. This current flows parallel to, and with a comparable magnitude to, the fundamental Pedersen current. Evidence for the existence and magnitude of wave-driven currents derives from a theoretical understanding of E-region waves, supported by a series of nonlinear 2D simulations of two-stream waves and by data collected by rocket instruments in the equatorial electrojet. Wave-driven currents will modify the large-scale dynamics of the equatorial electrojet dur

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31

Rao, D. R. K., and R. L. Asinkar. "On Ps6 and longer period geomagnetic pulsations in the Indian equatorial region." Annales Geophysicae 12, no. 7 (1994): 655–63. http://dx.doi.org/10.1007/s00585-994-0655-6.

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Abstract. Adopting an appropriate procedure suitable for processing the amplitude-time records based on the two-component spectral analysis technique, the statistical information on Ps6 and other longer periods are worked out on the geomagnetic field registrations in the Indian longitudinal regions at and away from the equatorial electrojet influence. The storm interval during 21 and 22 September 1982 has been chosen for the analysis, as violent and regular cyclic variations of the geomagnetic field were recorded in all the three components of the field at the Indian observatories. The procedu

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32

Rastogi, R. G., D. R. K. Rao, S. Alex, B. M. Pathan, and T. S. Sastry. "An intense SFE and SSC event in geomagnetic <i>H</i>, <i>Y</i> and <i>Z</i> fields at the Indian chain of observatories." Annales Geophysicae 15, no. 10 (1997): 1301–8. http://dx.doi.org/10.1007/s00585-997-1301-x.

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Abstract. Changes in the three components of geomagnetic field are reported at the chain of ten geomagnetic observatories in India during an intense solar crochet that occurred at 1311 h 75° EMT on 15 June 1991 and the subsequent sudden commencement (SSC) of geomagnetic storm at 1518 h on 17 June 1991. The solar flare effects (SFE) registered on the magnetograms appear to be an augmentation of the ionospheric current system existing at the start time of the flare. An equatorial enhancement in ΔH due to SFE is observed to be similar in nature to the latitudinal variation of SQ (H) at low latitu

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33

Pallam Raju, D., and R. Sridharan. "High resolution 2-D maps of OI 630.0 nm thermospheric dayglow from equatorial latitudes." Annales Geophysicae 16, no. 8 (1998): 997–1006. http://dx.doi.org/10.1007/s00585-998-0997-6.

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Abstract. The first-ever high resolution 2-D maps of OI 630.0 nm dayglow obtained from equatorial latitudes clearly reveal the movement as a large-scale feature of the equatorial ionization anomaly (EIA). These also show the presence of wave-like features classified as gravity waves presumably originating at the crest of the EIA, similar to the equatorial electrojet acting as a source of these waves. These results are presented and discussed.Key words. Atmospheric composition and structure (Airglow and aurora) · Ionosphere (Equatorial ionosphere; Instruments and techniques).

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34

Chakrabarty, D., R. Sekar, H. Chandra, R. Narayanan, B. M. Pathan, and K. S. V. Subbarao. "Characterizations of the diurnal shapes of OI 630.0 nm dayglow intensity variations: inferences." Annales Geophysicae 20, no. 11 (2002): 1851–55. http://dx.doi.org/10.5194/angeo-20-1851-2002.

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Abstract. Measurements of OI 630.0 nm thermospheric dayglow emission by means of the Dayglow Photometer (DGP) at Mt. Abu (24.6° N, 73.7° E, dip lat 19.09° N), a station under the crest of Equatorial Ionization Anomaly (EIA), reveal day-to-day changes in the shapes of the diurnal profiles of dayglow intensity variations. These shapes have been characterized using the magnetometer data from equatorial and low-latitude stations. Substantial changes have been noticed in the shapes of the dayglow intensity variations between 10:00–15:00 IST (Indian Standard Time) during the days when normal and cou

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35

RASTOGI, R. G. "Geomagnetic Disturbance Effects on Equatorial Electrojet Current." Journal of geomagnetism and geoelectricity 44, no. 5 (1992): 317–24. http://dx.doi.org/10.5636/jgg.44.317.

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36

Wang, X. H., and A. Bhattacharjee. "Gradient drift eigenmodes in the equatorial electrojet." Journal of Geophysical Research 99, A7 (1994): 13219. http://dx.doi.org/10.1029/94ja00600.

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37

Rastogi, R. G. "Magnetic storm effects at equatorial electrojet stations." Earth, Planets and Space 58, no. 5 (2006): 645–57. http://dx.doi.org/10.1186/bf03351962.

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38

Kudeki, Erhan, Bela G. Fejer, Donald T. Farley, and Christian Hanuise. "The Condor Equatorial Electrojet Campaign: Radar results." Journal of Geophysical Research 92, A12 (1987): 13561. http://dx.doi.org/10.1029/ja092ia12p13561.

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39

Singh, A., and K. D. Cole. "Ion-neutral collisions and the equatorial electrojet." Journal of Atmospheric and Terrestrial Physics 51, no. 11-12 (1989): 947–51. http://dx.doi.org/10.1016/0021-9169(89)90010-x.

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40

Bhattacharyya, A. "Electrojet irregularity parameters from daytime equatorial scintillations." Journal of Atmospheric and Terrestrial Physics 57, no. 2 (1995): 151–61. http://dx.doi.org/10.1016/0021-9169(93)e0039-c.

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41

Gasperini, F., and J. M. Forbes. "Lunar-solar interactions in the equatorial electrojet." Geophysical Research Letters 41, no. 9 (2014): 3026–31. http://dx.doi.org/10.1002/2014gl059294.

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42

Hassan, Ehab, W. Horton, A. I. Smolyakov, D. R. Hatch, and S. K. Litt. "Multiscale equatorial electrojet turbulence:Baseline 2-D model." Journal of Geophysical Research: Space Physics 120, no. 2 (2015): 1460–77. http://dx.doi.org/10.1002/2014ja020387.

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43

Rabiu, A. Babatunde, Olanike Olufunmilayo Folarin, Teiji Uozumi, Nurul Shazana Abdul Hamid, and Akimasa Yoshikawa. "Longitudinal variation of equatorial electrojet and the occurrence of its counter electrojet." Annales Geophysicae 35, no. 3 (2017): 535–45. http://dx.doi.org/10.5194/angeo-35-535-2017.

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Abstract. We examined the longitudinal variability of the equatorial electrojet (EEJ) and the occurrence of its counter electrojet (CEJ) using the available records of the horizontal component H of the geomagnetic field simultaneously recorded in the year 2009 (mean annual sunspot number Rz = 3.1) along the magnetic equator in the South American, African, and Philippine sectors. Our results indicate that the EEJ undergoes variability from one longitudinal representative station to another, with the strongest EEJ of about 192.5 nT at the South American axis at Huancayo and a minimum peak of 40.

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44

Mengistu, Endalkachew, and Tsegaye Kassa. "Temporal characteristics of the Equatorial Electrojet and Counter Electrojet over Ethiopian sector." Advances in Space Research 55, no. 2 (2015): 566–75. http://dx.doi.org/10.1016/j.asr.2014.10.031.

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45

GUPTA, BRD. "Night-time 5Cs, 515 and Bays in H at equatorial electrojet stations in India." MAUSAM 18, no. 4 (2022): 531–34. http://dx.doi.org/10.54302/mausam.v18i4.4710.

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It is shown that while at Indian electrojet station Annamalainagar some night-time enhancement is seen, at Trivandrum also an electrojet station on the contrary some night-time diminution is seen for all the three phenomena SC, SI and Bay. It is also shown that in Indian zone the mean ratio decreases from north to south while in American zone the mean ratio increases from north to south.

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46

Manju, G., K. S. Viswanathan, and S. Ravindran. "Spatial and temporal variations of small-scale plasma turbulence parameters in the equatorial electrojet: HF and VHF radar observational results." Annales Geophysicae 23, no. 4 (2005): 1165–73. http://dx.doi.org/10.5194/angeo-23-1165-2005.

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Abstract. The spatial and temporal variations of various parameters associated with plasma wave turbulence in the equatorial electrojet (EEJ) at the magnetic equatorial location of Trivandrum (8.5° N, 77° E; dip 0.5° N) are studied for the first time, using co-located HF (18MHz) and VHF (54.95MHz) coherent backscatter radar observations (daytime) in the altitude region of 95-110km, mostly on magnetically quiet days. The derived turbulence parameters are the mean electron density irregularity strength (δn/n), anomalous electron collision frequency (νe*) and the corrected east-west electron drif

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47

Yizengaw, Endawoke, and Brett A. Carter. "Longitudinal, seasonal and solar cycle variation in lunar tide influence on the equatorial electrojet." Annales Geophysicae 35, no. 3 (2017): 525–33. http://dx.doi.org/10.5194/angeo-35-525-2017.

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Abstract. It has been well documented that the lunar tidal waves can modulate the ionospheric electrodynamics and create a visible influence on the equatorial electrojet (EEJ). The lunar tide influence gets intensified around noon, primarily during new and full Moon periods. However, the longitudinal, seasonal and solar cycle variability in the lunar tide influence on ionospheric current systems is not well understood yet. In order to investigate this, 17 years (1998–2014) of extensive magnetometer observations at four longitudinal sectors (western American, western and eastern African, and As

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48

Doumouya, V., J. Vassal, Y. Cohen, O. Fambitakoye, and M. Menvielle. "Equatorial electrojet at African longitudes: first results from magnetic measurements." Annales Geophysicae 16, no. 6 (1998): 658–66. http://dx.doi.org/10.1007/s00585-998-0658-9.

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Abstract. In the framework of the French participation in the International Equatorial Electrojet Year (IEEY), ten magnetotelluric stations were installed between November 1992 and November 1994 along a 1200-km-long meridian profile, between Lamto (latitude 6.2°N, Côte d'Ivoire) to the south and Tombouctou (latitude 16.7°N, Mali) to the north. These stations measured digitally the three components of the magnetic field and the two components of the telluric electric field, and operated over a period of 20 months. The magnetic data is used to study the features of the equatorial electrojet (EEJ

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Somayajulu, V. V., K. S. Viswanathan, K. S. V. Subbarao, and L. Cherian. "Distortions in the height structure of the equatorial electrojet during counter electrojet events." Journal of Atmospheric and Terrestrial Physics 56, no. 1 (1994): 51–58. http://dx.doi.org/10.1016/0021-9169(94)90175-9.

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Olatunbosun, LG, A. O. Olabode, and EA Ariyibi. "Variability of Equatorial Electrojet (EEJ) at EIA regions." Physics & Astronomy International Journal 6, no. 1 (2022): 1–4. http://dx.doi.org/10.15406/paij.2022.06.00241.

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The EEJ is a worldwide solar-driven wind that results in the solar quiet (Sq) current system in the E region of the earth’s ionosphere. The variability of some features such as EEJ, are very important in understanding the complex nature of the ionosphere, especially the low-latitude ionosphere. The magnetometer data from stations located near the equator and outside the edge of the electrojet strip for Africa and India stations were used to estimate and investigate the variability of EEJ in African and Indian Low-Latitudes. The stations are Addis Ababa, Ethiopia (geographic lat/long: 9.03oN/38

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