On the mutual relationship of the equatorial electrojet, TEC and scintillation in the Peruvian sector

Sovit M. Khadka, Cesar Valladares, Rezy Pradipta, Edgardo Pacheco, Percy Condor

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

This paper presents the interrelationship between the equatorial electrojet (EEJ) strength, Global Positioning System (GPS)-derived total electron content (TEC), and postsunset scintillation from ground observations with the aim of finding reliable precursors of the occurrence of ionospheric irregularities. Mutual relationship studies provide a possible route to predict the occurrence of TEC fluctuation and scintillation in the ionosphere during the late afternoon and night respectively based on daytime measurement of the equatorial ionosphere. Data from ground based observations in the low latitudes of the west American longitude sector were examined during the 2008 solar minimum. We find a strong relationship exists between the noontime equatorial electrojet and GPS-derived TEC distributions during the afternoon mediated by vertical E × B drift via the fountain effect, but there is little or no relationship with postsunset ionospheric scintillation.

Original languageEnglish (US)
Pages (from-to)742-751
Number of pages10
JournalRadio Science
Volume51
Issue number6
DOIs
StatePublished - Jun 1 2016
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Earth and Planetary Sciences(all)
  • Electrical and Electronic Engineering

Keywords

  • GPS S index
  • equatorial and low-latitude ionosphere
  • nNeural network
  • relationship of EEJ, TEC, and S

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