Longitudinal profile of the equatorial electrojet current and its dependence on solar activity

Nurul Shazana Abdul Hamid, Wan Nur Izzaty Ismail, Akimasa Yoshikawa

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The equatorial electrojet (EEJ) is a strong eastward ionosphere current flowing in a narrow band along dip equator. It is flowing eastward in the dayside of equatorial E region of about 600 km wide and within 90 to 130 km altitude. The objectives of this research is to study the variations Equatorial Electrojet (EEJ) current measured from ground_based magnetometer. The data were provided by magnetometer network such as Magnetic Data Acquisition System (MAGDAS)/Circum-pan Pacific Magnetometer Network (CPMN), Indian Institute of Geomagnetism (IIG), International Real-time Magnetic Observatory Network (INTERMAGNET). We also request the data from the single observation station such as Fuquene (FUQ). The analysis is carried out using the EUEL index and normalization technique is applied to yield better results with the aids of CM4 current model. This involves fourteen stations in South America, African, Indian and Southeast Asian sectors. The analysis done are including longitudinal and solar activity dependence where the years revolves are 2008 and 2011. These two years represents the minimum phases of solar activity (2008) and inclining phases of solar activity (2011). The results obtained show that EEJ varies with longitudes and solar activity. EEJ current is found to be highest at the American sector and lowest between African and Indian sector. This current is also highest in inclination phase during 2011 compared to 2008 (solar minimum).

Original languageEnglish
Pages (from-to)1357-1360
Number of pages4
JournalAdvanced Science Letters
Volume23
Issue number2
DOIs
Publication statusPublished - 1 Feb 2017

Fingerprint

Solar Activity
electrojet
Magnetometers
solar activity
magnetometer
Geomagnetism
E region
Sector
Ionosphere
Observatories
South America
Data acquisition
data acquisition
geomagnetism
Equator
normalization
Information Systems
Inclination
dip
ionosphere

Keywords

  • Equatorial electrojet (EEJ)
  • Longitudinal profile
  • Solar activity
  • Sq current

ASJC Scopus subject areas

  • Computer Science(all)
  • Health(social science)
  • Mathematics(all)
  • Education
  • Environmental Science(all)
  • Engineering(all)
  • Energy(all)

Cite this

Longitudinal profile of the equatorial electrojet current and its dependence on solar activity. / Abdul Hamid, Nurul Shazana; Ismail, Wan Nur Izzaty; Yoshikawa, Akimasa.

In: Advanced Science Letters, Vol. 23, No. 2, 01.02.2017, p. 1357-1360.

Research output: Contribution to journalArticle

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