Annual Mean and Correlation of Global Vertical Total Electron Content from Various Global Data Centers
American Journal of Astronomy and Astrophysics
Volume 8, Issue 1, March 2020, Pages: 1-7
Received: Nov. 21, 2019; Accepted: Dec. 31, 2019; Published: Jan. 21, 2020
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Authors
Shambel Gizachew, Physics Department, Dire Dawa University, Dire Dawa, Ethiopia
Belay Sitotaw, Physics Department, Dire Dawa University, Dire Dawa, Ethiopia
Gizaw Mengistu, Physics Department, Addis Ababa University, Addis Ababa, Ethiopia
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Abstract
The main purpose of this work is to evaluate the annual mean correlations of vertical total electron content provided by GPS, Center for Orbit Determination in Europe (CODE), Jet Propulsion Laboratory (JPL), Polytechnical University of Catalonia (UPC) and European Space Agency (ESA) data centers. The comparisons are aimed at comparability of the different vertical total electron content (VTEC) data sets in terms of times variabilities globally. The Annual mean comparison of these global vertical total electron content are as expected results and also the agreements between the different VTECs from the given data centers also assessed from correlation maps is very good as reflected in correlation exceeding 0.98 among the different data sets with the exception of ESA VTEC. Moreover, the result shows that a distinct feature which exhibit by all data sets is presence of peak VTEC along equatorial latitude belt which fades out with increase in latitude.
Keywords
Total Electron Content, GPS, Electron Density
To cite this article
Shambel Gizachew, Belay Sitotaw, Gizaw Mengistu, Annual Mean and Correlation of Global Vertical Total Electron Content from Various Global Data Centers, American Journal of Astronomy and Astrophysics. Vol. 8, No. 1, 2020, pp. 1-7. doi: 10.11648/j.ajaa.20200801.11
Copyright
Copyright © 2020 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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