Solar flux effects on equatorial ionization anomaly and total electron content over Brazil: Observational results versus IRI representations

Details Solar flux effects on equatorial ionization anomaly and total electron content over Brazil: Observational results versus IRI representations Solar flux effects on equatorial ionization anomaly and total electron content over Brazil: Observational results versus IRI representations

Aug 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008adspr..42..617a&link_type=abstract

Advances in Space Research, Volume 42, Issue 4, p. 617-625.

Computer Science

2

Scientific paper

The F layer critical frequency (foF2) as measured by Digisondes in the equatorial and low latitude locations in Brazil is analyzed to investigate the seasonal and solar flux controls of the intensity of the equatorial ionization anomaly (EIA) in the equinoctial month of March. The analysis also included the total electron content (TEC) as measured by a GPS receiver operated at the EIA crest location. The foF2 data set covered a period of large solar flux variation from 1996 to 2003, while the GPS TEC data was for a period in 2002 2003 when the solar flux parameter F10.7 underwent large variations, permitting in both cases an examination of the solar flux effects on these parameters. The seasonal variation pattern in TEC shows a maximum in equinoctial months and a minimum in June solstice, with similar variations for foF2. The solar flux dependence of the TEC is a maximum during equinoxes, especially for post-sunset TEC values at times when the latitudinal distribution is controlled by the equatorial evening plasma fountain processes. Significant variations with local time are found in the degree of solar flux dependence for both the TEC and EIA. The EIA intensity shows large dependence on F10.7 during post-sunset to midnight hours. These results are discussed in comparison with their corresponding IRI representations.

Affiliated with

Also associated with

No associations

Rating

Solar flux effects on equatorial ionization anomaly and total electron content over Brazil: Observational results versus IRI representations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Solar flux effects on equatorial ionization anomaly and total electron content over Brazil: Observational results versus IRI representations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Solar flux effects on equatorial ionization anomaly and total electron content over Brazil: Observational results versus IRI representations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1170596