Results 301 to 310 of about 1,149,119 (338)

Total electron content of the equatorial ionosphere

Planetary and Space Science, 1973
Total electron content (Nt) variations in the ionosphere above the magnetic equator (Thumba dip 0.6°S) obtained by the Faraday rotation measurements of beacon signals from S66 satellites are described for the period December 1965–August 1968. The Nt value reaches a minimum around 05 hr and a broad maximum between 14–18 hr, the diurnal ratio being more ...
R.G. Rastogi, R.P. Sharma, V. Shodhan
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TOTAL IONOSPHERIC ELECTRON CONTENT AT HOUGHTON, MICHIGAN

Canadian Journal of Physics, 1967
Omicron I satellite measurements of total ionospheric electron content, comparing values at Houghton, Michigan, with others for different ...
K. C. Yeh, N. Narayana Rao
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Total electron content measurements during visible auroras

Journal of Atmospheric and Terrestrial Physics, 1973
Abstract The ionospheric total electron content was measured continuously from Macquarie Island (54.5°S, 150.0°E geographic) by monitoring the Faraday rotation of the polarization angle of the radio beacon from the geostationary satellite INTELSAT 2F-2.
B.J Watkins, E.A Essex
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Total Electron Content measurements with uncertainty estimate

2012 6th ESA Workshop on Satellite Navigation Technologies (Navitec 2012) & European Workshop on GNSS Signals and Signal Processing, 2012
High-accuracy Total Electron Content (TEC) measurements are important for several applications, including GNSS time transfer with accuracies better than 10 ns. In addition, it is important to provide uncertainty estimates to algorithms that use the TEC measurements.
UGAZIO, SABRINA, Frank van Graas, Wouter Pelgrum   +2 more
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Seasonal variations in ionospheric total electron content

Journal of Atmospheric and Terrestrial Physics, 1967
Abstract Total ionospheric electron content has been measured continuously since September 1964 by observing the Faraday rotation of a linearly-polarized wave received from the geostationary satellite Syncom III. Results of one year's observation at the University of Hawaii (20° N) are presented in the form of monthly mean curves.
P.C. Yuen, T.H. Roelofs
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Estimation of Total Electron Content using NavIC Signals

2020 URSI Regional Conference on Radio Science ( URSI-RCRS), 2020
Navigation with Indian Constellation (NavIC) formerly known as Indian Regional Navigation Satellite System (IRNSS) provides geo-spatial positioning with regional coverage over Indian landmass extended upto 1500 km. In general, NavIC have three main segments, namely the space segment, the ground segment and the user segment.
Anu Arora, Suresh Dakkumalla, T Subramanya Ganesh, Sharda Vashisth, Amitava Sen Gupta   +4 more
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Total Electron Content Studies in Equatorial Regions

Radio Science, 1970
This paper reviews current knowledge of the diurnal variation and spatial distribution of total electron content in the equatorial ionosphere. The problems of data reduction peculiar to stations near the equator are considered. There is a large diurnal variation up to 40∶1 that is greatest at the equinoxes and least in local winter.
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Plasmaspheric Total Electron Content Variations obtained from GPS Total Electron Content Data

Proceedings of the XXXVth URSI General Assembly and Scientific Symposium – GASS 2023, 2023
Yuichi Otsuka, Zhiyu Chen, Atsuki Shinbori, Takuya Sori, Kazuo Shiokawa, Septi Perwitasari, Michi Nishioka, Fuminori Tsuchiya, Atsushi Kumamoto, Yoshiya Kasahara, Yoshizumi Miyoshi, Masahiro Kitahara, Satoko Nakamura, Ayako Matsuoka, Iku Shinohara   +14 more
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Total electron content obtained from ionogram data alone

Radio Science, 1992
A method to obtain the total electron content (TEC) of the ionosphere over Tucumán (26.9° S; 65.4° W), from ionogram data alone, is reported. To accomplish this, two Chapman profile expressions for the electron density (n) distribution in the F region are assumed, and a characteristic point of the n profile, called F region base point, is required ...
R. G. Ezquer, N. O. Adler, S. M. Radicella, M. M. Gonzalez, J. R. Manzano   +4 more
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Correlation analysis of vertical total electron content

Acta Geophysica, 2010
It is necessary to model and analyze the ionospheric effects due to a direct relationship between Global Positioning System (GPS) applications and changes in the ionosphere. In order to monitor these changes, the ionosphere can be represented by the vertical total electron content (VTEC) which can be used to analyze ionospheric conditions from a ...
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