Ionospheric Total Electron Content (TEC)
Temporal Variation of Ionospheric Scintillation in Relation with Ionospheric Total Electron Content (TEC) over Ethiopia
... vertical total electron content (VTEC) has a maximum value during the day time after sunset the TEC value ...of ionospheric scintillation intensity index March, April, February, ...
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Monitoring the ionospheric total electron content variations over the Korean Peninsula using a GPS network during geomagnetic storms
... the ionospheric TEC using GPS data, the GPS-DCBs have to be taken into ...the TEC value, the “absolute” TEC value cannot be ...original TEC as it results in a decrease of reliability of ...
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Comparison of simultaneous variations of the ionospheric total electron content and geomagnetic field associated with strong earthquakes
... The methodology outlined in this section for tracing of a TID is simple and robust. We examine filtered time-series of ionospheric TEC obtained by different receiver- satellite pairs. We compute the ...
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Ionospheric disturbances detected by GPS total electron content observation after the 2011 off the Pacific coast of Tohoku Earthquake
... of ionospheric disturbances following the 2011 Tohoku Earthquake were first revealed by the high-resolution GPS total electron content observation in ...initial ionospheric disturbance ...
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Manifestations of the earthquake preparations in the ionosphere total electron content variations
... The ionosphere response on the vertical electric cur- rents’ parameters have been investigated using UAM. The strongest anomalies were obtained for sources acting near 30˚ mag. lat. It was also shown that “back” currents ...
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Analysis of Ionospheric Vertical Total Electron Content before the 2014 Mw8.2 Chile Earthquake
... and TEC anomalies could not be unambiguously related to the 2010 ...between ionospheric anomalies and earthquakes in response to the controversy, several studies have been undertaken to be expected to ...
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The Calculation and Analysis of the Total Electron Content Over Different Latitudes and Seasons Using the Numerical Trapezoidal and Simpson Methods
... monitor ionospheric effects which may degrade their performance ...The total electron content TEC is the number of free electrons in a column of unit area along a signal ...The ...
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Validation and application of optimal ionospheric shell height model for single site estimation of total electron content
... by ionospheric dispersive ...property, ionospheric total electron con- tent (TEC) along the path of signal can be estimated by differencing the pseudorange or carrier phase observations ...
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Global sounding of F region irregularities by COSMIC during a geomagnetic storm
... topside ionospheric irreg- ularities (above the LEO orbit) were retrieved by using in situ data of LEO satellites (Zakharenkova and Astafyeva, ...of total electron content along the GPS-LEO ...
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Observations and modeling of 630 nm airglow and total electron content associated with traveling ionospheric disturbances over Shigaraki, Japan
... measures TEC from one GPS satellite simul- taneously at many receiving ...and TEC), and the small-amplitude fluctuations in the 630 nm intensity ( ≤ 5 R) before 1430 UT are correlated with those in ...
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Modelling the main ionospheric trough using the Electron Density Assimilative Model (EDAM) with assimilated GPS TEC
... topside electron density profiles from Alouette 1 ionograms to identify the trough and its dependency on ge- omagnetic activity (Rycroft and Burnell, ...maximum electron density at the trough wall in the F ...
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Validation of Global TEC Mapping Model Based on Spherical Harmonic Expansion towards TEC Mapping over Egypt from a Regional GPS Network
... of Total Electron Content (TEC) maps made by Ionospheric Associate Analysis Centers (IAAC) over areas have no International GNSS Service (IGS) stations, A TEC mapping tool with a ...
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An experiment of predicting Total Electron Content (TEC) by fuzzy inference systems
... There are variety of techniques to estimate DCBs. For the scope of the study, we assume that the receiver DCBs are constant in a selected time period for VTEC estimation. Estimated VTEC values were used in training ...
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Modeling of GPS total electron content over the African low latitude region using empirical orthogonal functions
... the TEC along the line-of-site, slant TEC (sTEC) from the RINEX files using the GPS-TEC software of Boston College (Seemala and Valladares, ...vertical TEC (vTEC) at an assumed ...
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Investigation of the relationship between the spatial gradient of total electron content (TEC) between two nearby stations and the occurrence of ionospheric irregularities
... steep electron density gradi- ...of ionospheric plasma density irregulari- ties or plasma bubbles in the equatorial and low-latitude re- gion (Rao et ...of ionospheric scintillation and ...
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Multi instrument observations of large scale atmospheric gravity waves/traveling ionospheric disturbances associated with enhanced auroral activity over Svalbard
... waves/traveling ionospheric disturbances (AGWs/TIDs) using Global Positioning System (GPS) total electron content (TEC) and Fabry-Perot Interferometer’s (FPI) in- tensity of oxygen red ...
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STUDY OF SPACE WEATHER ON GPS PERFORMANCE AT LOW LATITUDE STATION BHOPAL AND HIGH LATITUDE STATION MAITRI, ANTARCTICA
... propagation, Total Electron Content (TEC) variation and Ionospheric scintillation based on GPS data of January 2005 to March 2005, January 2006 to March 2006, January 2007 to March 2007 ...
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Statistical analysis of ionospheric mid latitude trough over the Northern Hemisphere derived from GPS total electron content data
... nighttime TEC data were used to construct latitudinal TEC ...latitudinal TEC profile from 10 January 2003. The latitudinal TEC pro- files over the Northern Hemisphere and between 45° and 70° N ...
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Analysis and Compensation of Ionospheric Time-Variant TEC Effect on GEO SAR Focusing
... by ionospheric time-variant total electron content (TEC), which introduces a phase error into the SAR azimuth ...U.S. total electron content (USTEC) data, ...
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Analysis of the Earth Movement over the Equatorial Region by using the Ionosonde Observation Data
... of Total Electron Content (TEC), sunspot number, solar cycle, magnetic indices such as Kp and Ap indices need to be looked into and analyzed in order to get the best relationship between the ...
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