Skip to content
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
Variations of f
o
F
2
and GPS total electron content over the Antarctic sector
Earth, Planets and Space, Volume 63, No. 4, Year 2011
Notification
URL copied to clipboard!
Description
This paper presents a preliminary analysis of the variations of the critical frequency of the F2 region (foF2) and the total electron content (TEC) derived from Global Positioning System (GPS) data. Hourly foF2 values were scaled from ionograms recorded at San Martin (68.1°S, 293.0°E) and the TEC values were derived from GPS observations at O'Higgins (63.3°S, 302.5 °E). The database includes measurements obtained under different seasonal and solar activity conditions. The study shows that the daily peak of foF2 occurs around local noon in winter and fall, and in spring a secondary peak is observed around midnight. In summer (January) f oF2 reaches its minimum value around the noon sector while the maximum in the diurnal variation of foF2 is located in a time sector close to midnight. This behaviour is observed at low and high solar activity. The semiannual anomaly appears around noon at high and low solar activity and the winter anomaly is not observed. The effect of the solar activity is generally observed in every season. The analysis of the GPS TEC measurements in the same region indicates that the diurnal, seasonal and solar activity variations are similar to those observed in the foF 2 values. An analysis of the performance of the IRI model to predict foF2 is also shown using the two IRI options (URSI and CCIR). The comparisons between the experimental values and the IRI predictions show some discrepancies. Copyright © The Society of Geomagnetism and Earth.
Authors & Co-Authors
Mosert, M.
Argentina, Buenos Aires
Consejo Nacional de Investigaciones Científicas y Técnicas
McKinnell, Lee Anne
South Africa, Hermanus
Hermanus Magnetic Observatory
South Africa, Grahamstown
Rhodes University
Gende, Maurício Alfredo
Argentina, La Plata
Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de la Plata
Brunini, Claudio Antonio
Argentina, La Plata
Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de la Plata
Araujo, J.
Argentina, San Martin
Instituto Antartico Argentino
Ezquer, R. G.
Argentina, Buenos Aires
Universidad Tecnologica Nacional
Argentina, San Miguel de Tucuman
Universidad Nacional de Tucuman Unt
Argentina, Buenos Aires
Consejo Nacional de Investigaciones Científicas y Técnicas
Cabrera, M.
Argentina, Buenos Aires
Universidad Tecnologica Nacional
Statistics
Citations: 7
Authors: 7
Affiliations: 7
Identifiers
Doi:
10.5047/eps.2011.01.006
ISSN:
13438832
e-ISSN:
18805981