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Ion Temperature in the Outer Ionosphere – First Version of a Global Empirical Model by L. Třísková; V. Truhlík; J. Šmilauer; N.F. Smirnova is a Physics and Astronomy article available to read on EtoBox.

What is Ion Temperature in the Outer Ionosphere – First Version of a Global Empirical Model about?

The data set of the ion temperature (T i ) recently derived from the retarding potential analyzer (RPA) volt-ampere characteristics measured during the ACTIVE mission (Intercosmos 24, perigee 500 km, apogee 2500 km, inclination 83°, time period 1989-1993) was used to study the global distribution of T i at solar maximum. The first version of a global empirical model has been constructed for altitude levels of 550, 900, and 1500 km, local time and ±90°latitude. At these fixed altitudes T i was represented by a system of associated Legendre polynomials (up to the 6th order) in terms of magnetic local time and latitude coordinates. Comparison of the model values with IRI (International Reference Ionosphere) shows a good agreement at the altitude of 550 km. Above 1000 km IRI shows higher T i values during the day and lower T i during the night. Behavior of model ion and electron temperatures is discussed.

Who reads Ion Temperature in the Outer Ionosphere – First Version of a Global Empirical Model?

Author

L. Třísková; V. Truhlík; J. Šmilauer; N.F. Smirnova

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0273-1177)

Published

2004

Language

EN

Field

Physics and Astronomy (Physical Sciences)