Physics
Scientific paper
May 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agusmsa43c..04a&link_type=abstract
American Geophysical Union, Fall Meeting 2007, abstract #SA43C-04
Physics
6929 Ionospheric Physics (1240, 2400), 2415 Equatorial Ionosphere, 2435 Ionospheric Disturbances, 2439 Ionospheric Irregularities, 2441 Ionospheric Storms (7949)
Scientific paper
Equatorial spread F (ESF) and associated plasma bubble irregularity development can be initiated or inhibited under disturbance electric fields associated with magnetic storms. Case studies of ESF intensification/inhibition under intense storm conditions are rare, however. We have addressed this question using the data collected from the Brazilian network of Digisondes, a VHF radar and GPS scintillation receivers, complemented by Digisonde data from Jicamarca and satellite born measurements. Dawn-dusk electric fields penetrating to equatorial latitude in the early phase of a storm event cause disruption of ESF development under a nightside westward electric field, that causes a rapid descent of the F layer. Large intensity prompt penetration electric fields occurring on the evening/post sunset ionosphere cause rapid uplifts of the F layer, and existing ESF patch structures seen by the radar to move to higher altitudes often exceeding the limits of the instruments (>1300 km) so that possible generation of irregularities by disturbance electric fields can only be detected by scintillation receivers. Disturbance dynamo electric fields are found to strongly influence the ESF development, which is inhibited during post sunset hours while subject to intensification during post midnight hours. The possible role of a disturbance trans-equatorial wind in suppressing the ESF generation is also examined
Abdu Mangalathayil Ali
Batista Inez S.
Denardini Clezio M.
Paula E. R.
Reinisch Bodo. W.
No associations
LandOfFree
Equatorial Spread F Development/Disruption under Disturbance Electric Fields during Some Recent Intense Magnetic Storms. 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 Equatorial Spread F Development/Disruption under Disturbance Electric Fields during Some Recent Intense Magnetic Storms., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Equatorial Spread F Development/Disruption under Disturbance Electric Fields during Some Recent Intense Magnetic Storms. will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1026326