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https://doi.org/10.17559/TV-20141117201942

A new approach to outlying data in estimation of vertical total electron content

Ramazan Cuneyt Erenoglu   ORCID icon orcid.org/0000-0002-8212-8379 ; Canakkale Onsekiz Mart University, Faculty of Engineering, Department of Geomatics Engineering, 17020 Canakkale, Turkey

Puni tekst: engleski, pdf (2 MB) str. 971-979 preuzimanja: 752* citiraj
APA 6th Edition
Erenoglu, R.C. (2015). A new approach to outlying data in estimation of vertical total electron content. Tehnički vjesnik, 22 (4), 971-979. https://doi.org/10.17559/TV-20141117201942
MLA 8th Edition
Erenoglu, Ramazan Cuneyt. "A new approach to outlying data in estimation of vertical total electron content." Tehnički vjesnik, vol. 22, br. 4, 2015, str. 971-979. https://doi.org/10.17559/TV-20141117201942. Citirano 02.03.2021.
Chicago 17th Edition
Erenoglu, Ramazan Cuneyt. "A new approach to outlying data in estimation of vertical total electron content." Tehnički vjesnik 22, br. 4 (2015): 971-979. https://doi.org/10.17559/TV-20141117201942
Harvard
Erenoglu, R.C. (2015). 'A new approach to outlying data in estimation of vertical total electron content', Tehnički vjesnik, 22(4), str. 971-979. https://doi.org/10.17559/TV-20141117201942
Vancouver
Erenoglu RC. A new approach to outlying data in estimation of vertical total electron content. Tehnički vjesnik [Internet]. 2015 [pristupljeno 02.03.2021.];22(4):971-979. https://doi.org/10.17559/TV-20141117201942
IEEE
R.C. Erenoglu, "A new approach to outlying data in estimation of vertical total electron content", Tehnički vjesnik, vol.22, br. 4, str. 971-979, 2015. [Online]. https://doi.org/10.17559/TV-20141117201942
Puni tekst: hrvatski, pdf (2 MB) str. 971-979 preuzimanja: 181* citiraj
APA 6th Edition
Erenoglu, R.C. (2015). Novi pristup vanjskim (outlying) podacima u procjeni vertikalnog ukupnog sadržaja electrona. Tehnički vjesnik, 22 (4), 971-979. https://doi.org/10.17559/TV-20141117201942
MLA 8th Edition
Erenoglu, Ramazan Cuneyt. "Novi pristup vanjskim (outlying) podacima u procjeni vertikalnog ukupnog sadržaja electrona." Tehnički vjesnik, vol. 22, br. 4, 2015, str. 971-979. https://doi.org/10.17559/TV-20141117201942. Citirano 02.03.2021.
Chicago 17th Edition
Erenoglu, Ramazan Cuneyt. "Novi pristup vanjskim (outlying) podacima u procjeni vertikalnog ukupnog sadržaja electrona." Tehnički vjesnik 22, br. 4 (2015): 971-979. https://doi.org/10.17559/TV-20141117201942
Harvard
Erenoglu, R.C. (2015). 'Novi pristup vanjskim (outlying) podacima u procjeni vertikalnog ukupnog sadržaja electrona', Tehnički vjesnik, 22(4), str. 971-979. https://doi.org/10.17559/TV-20141117201942
Vancouver
Erenoglu RC. Novi pristup vanjskim (outlying) podacima u procjeni vertikalnog ukupnog sadržaja electrona. Tehnički vjesnik [Internet]. 2015 [pristupljeno 02.03.2021.];22(4):971-979. https://doi.org/10.17559/TV-20141117201942
IEEE
R.C. Erenoglu, "Novi pristup vanjskim (outlying) podacima u procjeni vertikalnog ukupnog sadržaja electrona", Tehnički vjesnik, vol.22, br. 4, str. 971-979, 2015. [Online]. https://doi.org/10.17559/TV-20141117201942

Sažetak
For all scientific studies, for processing analytical data the subject of outliers is of critical importance. The accuracy of Total Electron Content (TEC) models obtained from ground based Global Positioning Systems (GPS) data is strongly affected by some factors such as satellite geometry, cut-off angle, ionospheric shell height, quantity of GPS data etc. Probable outliers within the observables have a significant effect on the quality of the estimated TEC modelling. These should be removed from the TEC time series in order to get more reliable results for further process. Although some analytical methods have been developed for the code-outliers, phase-slips and ionosphere disturbances, significant reduction in the number of measurement could adversely affect the quality of the generated TEC values using geometry-free combinations of those. In this study, we proposed a novel approach for outlier detection to be used at geometry-free combinations in estimation of vertical TEC without reducing the number of code observables. Here the GPS data obtained from 22 permanent stations are used to estimate the VTEC on May 14-15, 2005. The research results from the detailed processing clearly show the efficiency of the method. Our research shows that the proposed approach appears to be a fast, effective and objective method to detect outlying effects which cause improper modelling. Moreover the resulting VTEC maps from the new approach differ reliably with respect to the data including outlying observables. Consequently, the proposed method could provide an alternative to outlier rejection in estimation of VTEC, in which outlying observations are retained in geometry-free combinations.

Ključne riječi
discordant data; GPS; median; outlier; total electron content

Hrčak ID: 143150

URI
https://hrcak.srce.hr/143150

[hrvatski]

Posjeta: 1.267 *