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Total electron content and scintillation studies of ionosphere

Total electron content and scintillation studies of ionosphere

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Published by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development in Neuilly-sur-Seine .
Written in English


Edition Notes

Statementprepared for the Electromagnetic Wave Propagation Panel of AGARD ; edited by J. Aarons.
SeriesAGARDograph -- 166
ContributionsAarons, Jules., Advisory Group for Aerospace Research and Development. Electromagnetic Wave Propagation Panel.
ID Numbers
Open LibraryOL21085220M

[1] The characteristics of the ionospheric response to the solar flare on Apr. 15, were studied using the total electron content (TEC) obtained at GPS observational stations in the whole sunlit hemisphere under International GPS Service for Geodynamics. It was found that the largest enhancement of the sudden increase of total electron content during this flare is ∼ TECU (1 TECU = 10 Cited by:   This report embodies a study of Ionospheric Scintillations as considered from the following aspects: 1) Overall view of scintillations using a large data base, and also the detailed, individual magnetic storm picture. Solar flux level, seasonal variation, invariant latitude, and irregularity region are discussed. 2) Total Electron Content measurements through Faraday Rotation and Group Delay Author: S. Basu, C. J. Cantor, J. Johanson, E. MacKenzie, M. P. Hagan.

1 Introduction. The Earth's ionosphere is a region of the upper atmosphere that is located above approximately 50‐km altitude. It is characterized by a relatively high density of free ions and electrons, which are created, in most part, by solar photoionization of neutral atmospheric species (Kelley, ).The ionosphere can also be described as a weakly ionized, magnetized by: 1. At LT, IRI overestimates the observed TEC for low solar flux but underestimates it for high solar flux values. INTRODUCTION Total electron content (TEC) of the ionosphere is an important parameter for geophysical studies; it is helpful in applications such as radio astronomy, space geodesy, satellite and space probe by:

  The amplitude scintillation index S4 and the phase scintillation index σ φ acquired by the ionospheric scintillation and TEC (Total Electron Content) monitor are the most commonly used indices for the ionospheric scintillation study. The correlation between the change rate of TEC index ROTI, which is obtained from the dual frequency GNSS (Global Navigation Satellite System) receiver, Author: L. L. Shao, S. L. Song. Ionospheric scintillation analyses have been conducted on several fronts, and are discussed here in the light of: (1) recent observations, current theories, and coordinated studies of equatorial scintillations; (2) morphology and analytical formulas at high latitudes; (3) measurements associated with ionospheric heating.


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Total electron content and scintillation studies of ionosphere Download PDF EPUB FB2

Total Electron Content Studies of the Ionosphere. Paperback – January 1, by John A. Klobuchar (Author) See all formats and editions Hide other formats and editions.

Price New from Used from Paperback "Please retry" $ $ $ Paperback $ Author: John A. Klobuchar. The behavior of the ionosphere is also known to be directly related with solar activity as well as localized phenomena, such as solar eclipses.

This study aims to measure the impact of the solar eclipse of July 2, on local ionospheric properties in terms of total electron content (TEC) and scintillation indices S4 and : Lucas Eduardo Tijerina, Daniel Nigro, Jose Nicolas Gachancipa, Julian Andres Herrera, Chintan Thakra.

Radio waves which traverse the ionosphere undergo several effects from the medium through which they must pass. Two of these effects are of major importance to modern communications and ranging systems; these are amplitude and phase scintillation of the received signal and time delay or group path delay of the modulation on the radio-wave.

The scintillation effects are important in three major Author: J. Aarons, J. Klobuchar. the study and monitoring activity on Total Electron Content (TEC) and ionospheric scintillation in Malaysia using GPS measurements. Approach: One dual-frequency GPS receiver was positioned at the main station in Parit Raja, West Malaysia (° N, ° E) and Sipitang, East Malaysia (° N, ° E) respectively.

Study of GPS Derived Total Electron Content and Scintillation Index Variations over Indian Arctic and Antarctic Stations Article (PDF Available) in Journal of Scientific Research 5(2) This paper presents a study of ionospheric scintillation and the Total Electron Content (TEC) characteristics at low solar activity using GPS data from a West African data used are the scintillation index (S4) and the vertical TEC (vTEC) recorded at the GPS - SCINDA station of Abidjan (Latitude = N, Longitude = W).

This work covers the period from January to Cited by: 4. An analysis of combined data sets should prove to be a profitable avenue for research. In this study, we present the occurrence of scintillation using GPS Ionospheric Scintillation and Total Electron Content Monitor (GISTM) systems from two equatorial stations UKM (°N, °E), and Langkawi (°N, °E) in Malaysia.

ionospheric scintillations and the total electron content (TEC) changes. Taking advantage of the archive of continuous and systematic observa- tions of the ionosphere on L-band by means of signals. A study on the variability of ionospheric total electron content over the East African low‐latitude region and storm time ionospheric variations O.

Olwendo Corresponding AuthorCited by: 4. The dual frequency signals from the GPS satellites recorded at an Indian low latitude station Surat ((°) N, (°) E), situated near the northern crest of the equatorial anomaly have been analysed to study the ionospheric scintillation in terms of amplitude scintillation S_{4} index and Total Electron Content (TEC) for the rising phase of solar activity period from the year to [1] In this paper we present the first results from measurements of scintillation and total electron content (TEC) from an equatorial station, Lagos (Latitude °N, Longitude °E, magnetic latitude °S), Nigeria, using a Novatel GSVB GPS ionospheric scintillation and TEC monitor.

Details are presented for data collected between February and August Cited by: The ionospheric scintillation and TEC (Total Electron Content) variations are studied using GPS (Global Positioning System) measurements at an Indian low latitude station Surat ( N, E. Total electron content and scintillation studies of the ionosphere.

[Neuilly-sur-Seine, France] North Atlantic Treaty Organization, Advisory Group for Aerospace Research and Development [] (OCoLC)   Ionospheric scintillation has a great impact on radio propagation and electronic system performance, thus is extensively studied currently.

The influence of ionospheric scintillation on Global Navigation Satellite System (GNSS) is particularly evident, making GNSS an effective method to study characteristics of by: 5. MONITOR Ionospheric Network: Two case studies on scintillation and electron content variability Article (PDF Available) in Annales Geophysicae 35(3) March with Reads.

The measurement and recorded data of scintillation (S4) and Total Electron Content (TEC) was done by GPS Ionosphere Scintillation and TEC Monitoring (GISTM), installed at UKM, Malaysia (°N °E).

Strong Scintillation (S4) was obtained from PRN. This paper presents a study of ionospheric scintillation and the Total Electron Content (TEC) characteristics at low solar activity using GPS data from a West African location.

The data used are the scintillation index (S4) and the vertical TEC (vTEC) recorded at the GPS - SCINDA station of Abidjan (Latitude = N, Longitude = W).

Total electron content data have been utilized to derive the statistics of the variability of ionospheric time delay in the Mediterranean region for the current solar maximum period. The implications of the results on modern satellite ranging systems are discussed.

The objective of this research is to investigate Ionosphere Scintillation and Total Electron Content (TEC) Characteristic at Equatorial region.

This research also will evaluate the value of Ionosphere Scintillation and Total Electron Content (TEC) at Equatorial region. From this evaluation, it will. Moreover year is the year of high solar activity which implies higher ionosphere activity.

Being susceptible to such adverse effects, GNSS which is free and continuously available can be used as ionospheric scintillation monitoring tool. This thesis presents the analysis and studies of ionospheric scintillation in : Dhimas Sentanu Murti.

Total Electron Content. The speed and propagation path of the GNSS signals in the ionosphere depend upon the number and distribution of free electrons in the path, or Total Electron Content (TEC). Changes in the TEC result in variable time delays in the signal propagation due to by: 1.[Show full abstract] °E) for the purpose of monitoring ionospheric scintillation and Total Electron Content (TEC) variations.

In this study, Global Positioning System (GPS) ionospheric.Total electron content (or TEC) is an important descriptive quantity for the ionosphere of the Earth. TEC is the total number of electrons integrated between two points, along a tube of one meter squared cross section, i.e., the electron columnar number is often reported in multiples of the so-called TEC unit, defined as TECU=10 16 el/m TEC is significant in determining the.