1977
DOI: 10.1016/0021-9169(77)90059-9
|View full text |Cite
|
Sign up to set email alerts
|

Sporadic E-layer phenomena in the Brazilian geomagnetic anomaly: evidence for a regular particle ionization source

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
1
1

Citation Types

3
29
0

Year Published

1982
1982
2014
2014

Publication Types

Select...
9

Relationship

0
9

Authors

Journals

citations
Cited by 48 publications
(32 citation statements)
references
References 30 publications
3
29
0
Order By: Relevance
“…This tells us that maximum electron precipitation is concentrated around the position of F minimum and falls off away from it. This is in agreement with the finding from ionosonde results by Abdu and Batista (1977) that particle precipitation is a regular source of ionization in the E-region over SAMA even under quiet conditions. Abel and Thorne (1999) also have shown from numerical simulation study that precipitating electrons should be a prominent ionization source near the SAMA but relatively insignificant elsewhere.…”
Section: Article In Presssupporting
confidence: 94%
See 1 more Smart Citation
“…This tells us that maximum electron precipitation is concentrated around the position of F minimum and falls off away from it. This is in agreement with the finding from ionosonde results by Abdu and Batista (1977) that particle precipitation is a regular source of ionization in the E-region over SAMA even under quiet conditions. Abel and Thorne (1999) also have shown from numerical simulation study that precipitating electrons should be a prominent ionization source near the SAMA but relatively insignificant elsewhere.…”
Section: Article In Presssupporting
confidence: 94%
“…Abdu et al (1981) have observed significant lowering of VLF reflection height in the SAMA region during magnetic storms which was consistent with enhanced ionization of the D-region due to particle precipitation. Abdu and Batista (1977), and Batista and Abdu (1977) have reported sporadic E-layer enhancements that indicated energetic particle precipitation as a regular night time ionization source in the SAMA region. Also Gledhill and Hoffman (1981) have reported 0.2 to 26 keV electron flux precipitating in the SAMA region capable of producing detectable effects in the D-and E-regions of the ionosphere during night time.…”
Section: Introductionmentioning
confidence: 95%
“…Phase advances of the 13.6 kHz Argentina VLF signals were linearly proportional to a logarithmic function of the intensity of the geomagnetic storm, given by the peak D st (Pinto et al, 1990). Abdu and Batista (1977) revealed from the ionosonde measurements that sporadic E-layer enhancements over Cachoeira Paulista…”
Section: Introductionmentioning
confidence: 98%
“…It is well known that the SSA region has the lowest geomagnetic field intensity around the globe and several investigators (e.g., Pinto and Gonzalez, 1989;Pinto et al, 1992) have observed charged particle precipitation in this region. Also, Abdu and Batista (1977) pointed out that during day-time, the solar EUV flux does not seem to be sufficient to produce the observed fbEs values at Cachoeira Paulista and an additional source must therefore be considered. Precipitating electron flux in the SAA region is the most probable candidate for the additional ionization source.…”
Section: Resultsmentioning
confidence: 97%