Premium
Improvement of equatorial density distribution of the global core plasma model using GPS‐derived TEC
Author(s) -
Goto Y.,
Kasahara Y.,
Ide T.
Publication year - 2012
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 - 10.1029/2011rs004763
Subject(s) - tec , total electron content , global positioning system , electron density , ionosphere , equator , geodesy , satellite , plasmasphere , international reference ionosphere , plasma , magnetosphere , geology , geophysics , physics , latitude , computer science , astronomy , telecommunications , quantum mechanics
The global core plasma model (GCPM) is a realistic electron density model of the inner magnetosphere. By using long‐term total electron content (TEC) data obtained from several GPS tracking stations along the equator and a low Earth orbit satellite, the accuracy of the GCPM equatorial density is examined. According to the statistical analysis of the GPS TEC, we found a remarkable feature in bias errors in the GCPM‐derived TEC. Most of the errors are found to distribute in the topside ionosphere due to the simple representation of the density there.