Variations of total electron content over Serbia during the increased solar activity period in 2013 and 2014
2016
Аутори
Blagojević, DraganTodorović-Drakul, Miljana
Odalović, Oleg
Grekulović, Sanja
Popović, Jovan
Joksimović, Danilo
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
To understand general ionosphere properties over Serbia, an analysis of temporal and spatial ionosphere Total Electron Content (TEC) over the region was performed. The present research focuses on daily, seasonal and spatial ionosphere variations, based on TEC series calculated from the GNSS ie. GPS measurements. This analysis provides for characterization of ionosphere nature and fine structure over Serbia, both locally and regionally. For the days with high solar activity changes of TEC values ranges from minimum 4 Total Electron Content Units (TECU), in night hours, up to 55 TECU around the noon. It is shown that that changes are equivalent to the to the delay of GPS signals approximately 8.8 m in in vertical direction during the (maximum) daily conditions and the delay of 0.6 m during the (minimum) night conditions. Also, it is shows that a seasonal TEC differences follows directly Son activity during the seasons, and maximal differences of TEC values between the seasons reaching va...lues of 45 TECU, again in the years of high Son's activities. For spatial changes all gained results indicate that there exist changes in all directions which cannot be recognized as constant bias or a trend.
Кључне речи:
GNSS / GPS / Ionosphere Variation / Total Electron Content (TEC)Извор:
Geodetski vestnik, 2016, 60, 4, 734-744Издавач:
- Zvava Geodetov Slovenije
Финансирање / пројекти:
DOI: 10.15292/geodetski-vestnik.2016.04.734-744
ISSN: 0351-0271