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Comparison of ionospheric total electron content from the Navy Navigation Satellite System and the GPS
Author(s) -
Ciraolo Luigi,
Spalla Paolo
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 - 10.1029/97rs00425
Subject(s) - tec , total electron content , global positioning system , ionosphere , satellite , geodesy , environmental science , remote sensing , quartile , meteorology , geography , mathematics , computer science , statistics , physics , telecommunications , astronomy , confidence interval
About 25,000 total electron content (TEC) values obtained in 2 years from Navy Navigation Satellite System (NNSS) differential Doppler were compared with the corresponding TECs obtained from the Global Positioning System (GPS). The method by which the comparison is effected is also described. The resulting statistics are very effective in showing a good agreement between the two techniques. The GPS TEC results are statistically larger than NNSS TEC, namely, 3±1 TEC units; the lower quartile of the differences is always greater than zero.