| Full text | |
| Author(s): |
Sousasantos, J.
;
Abdu, M. A.
;
de Paula, E. R.
;
Moraes, A. O.
;
Salles, L. A.
;
Affonso, B. J.
Total Authors: 6
|
| Document type: | Journal article |
| Source: | GPS SOLUTIONS; v. 26, n. 3, p. 13-pg., 2022-07-01. |
| Abstract | |
The equatorial plasma bubble evolution, its symmetric propagation away from the equator over north/south hemispheres, the vertical plasma drift asymmetry, and some implications between these phenomena are examples of the conjugate point experiment campaign results. However, the asymmetric transport of plasma may imply a distinct ionospheric background in each hemisphere. When the equatorial depletion reaches these regions, the ionospheric scintillation may present different patterns. In this work, data from scintillation monitors, ionosondes, and all-sky imagers deployed at geomagnetically antipodal stations around the equator during the campaign were evaluated along the months of October-December 2002. The results reveal asymmetries in the onset times and scintillation magnitudes. On the one hand, the scintillation onset occurred earlier in 80% of the cases over the southern hemisphere. On the other hand, 71% of the nights verified the larger scintillation values in the northern hemisphere. The distinct F region altitudes, thickness, bottomside electron density gradient scale lengths, and TEC over both stations seem to contribute to this asymmetric behavior. (AU) | |
| FAPESP's process: | 17/50115-0 - GNSS technology for supporting air navigation |
| Grantee: | Joao Francisco Galera Monico |
| Support Opportunities: | Research Grants - Research in Public Policies |
| FAPESP's process: | 18/06158-9 - Statistical Studies of the Variation of Ionospheric Parameters and Their Relationship with Space Weather Events |
| Grantee: | Jonas de Sousa dos Santos |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 16/24970-7 - The Scintillation Prediction Observation Research Task (SPORT) |
| Grantee: | Mangalathayil Ali Abdu |
| Support Opportunities: | Research Projects - Thematic Grants |