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Comparisons of ionospheric total electron contents made at Boulder, Colorado, using the Global Positioning System
Author(s) -
Conkright Raymond O.,
Davies Kenneth,
Musman Steven
Publication year - 1997
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/97rs00579
Subject(s) - tec , total electron content , ionosphere , faraday effect , global positioning system , consistency (knowledge bases) , geodesy , international reference ionosphere , meteorology , remote sensing , environmental science , physics , geography , computer science , telecommunications , geophysics , magnetic field , quantum mechanics , artificial intelligence
We discuss two different methods of deriving ionosphere total electron content (TEC) from observations of Global Positioning Satellites (GPS) at Boulder, Colorado. In the first method, data from the National Institute of Standards and Technology Ionospheric Monitoring System (NIMS) are examined for the period of January 1994 to January 1995. In the second method, carrier phase models are constructed for four days in January 1995 and at two stations near Boulder. Both methods are compared with Faraday rotation values. Smoothed NIMS observations are an adequate representation for smoothed TEC variation during the day. Carrier phase models show good agreement with Faraday rotation and consistency between nearby receivers.