DOLOČEVANJE REGIONALNEGA MODELA IONOSFERE TER PRIMERJAVA Z GLOBALNIM MODELOM

According to the signal propagation, the atmosphere is divided into two regions, the troposphere and the ionosphere. The troposphere has refraction effect and causes similar effects on both code and phase modulation and results in a delay of up to 30 meters for a horizontal path. [...]the effect of...

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Bibliographic Details
Published in:Geodetski vestnik 2017-09, Vol.61 (3), p.427-440
Main Authors: Basciftci, Fuat, Inal, Cevat, Yildirim, Omer, Bulbul, Sercan
Format: Article
Language:English
Subjects:
Atmosphere
Earthquakes
Global positioning systems
GPS
Ionosphere
Laboratories
Software
Solar cycle
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Summary:According to the signal propagation, the atmosphere is divided into two regions, the troposphere and the ionosphere. The troposphere has refraction effect and causes similar effects on both code and phase modulation and results in a delay of up to 30 meters for a horizontal path. [...]the effect of the troposphere is considered one of the major sources of errors imposed on the satellite signals. Before big volcanic eruptions, the rate of occurrence of TEC anomalies are related to volcanic type and geographical location (Li et al., 2016). [...]the effects of earthquakes and volcanic eruptions may be monitored. 2 THE STRUCTURE OF THEINOSPHERE 2.1 The regions of the ionosphere The ionosphere is divided into three major regions, geographically, the high latitude region, the middle latitude region and the equatorial region, and scientific studies are based on these regions (Figure 2). [...]of evaluations, the mean of TEC values from 2009 to 2015 was calculated and compared with IRI and GIM (JPL, ESA, CODE) mean TEC values.
ISSN:0351-0271
1581-1328
DOI:10.15292//geodetski-vestnik.2017.03.427-440