Abstract

Noon ionograms obtained at three Argentine stations (Tucuman, San Juan and Buenos Aires) are used to compare the critical frequency of the E region with the corresponding values predicted by the International Reference Ionosphere. The database includes summer, winter and equinox periods for years of different level of solar activity. For San Juan electron density profiles derived from midday ionograms recorded for different conditions, are used to check the validity of the E peak height assumed by the two versions of the model: 1990 and 1995. In general, the comparisons show: (i) that the constant value of the E peak height of 110 km assumed by the 1995 version seems more reasonable than the value of 105 km used in the 1990 version, (ii) that the situation for the E peak height requires more work and it would be useful an extension of this study using a more complete database.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.