Loading...
Please wait, while we are loading the content...
Similar Documents
Impulsive Energy Transfer from the Magnetosphere to the Ionosphere during Geomagnetic Storms
| Content Provider | Semantic Scholar |
|---|---|
| Author | Zanetti, Lawrence J. Robinson, Robert R. Anderson, Brian A. Korth, Haje |
| Copyright Year | 2018 |
| Abstract | Data from the Active Magnetosphere and Planetary Electrodynamics Response Experiment (AMPERE) have been used to study electric fields and currents for multiple magnetic storms. The calculation uses a high latitude conductivity model based on the field-aligned currents measured by AMPERE compared to measurements from the Poker Flat Incoherent Scatter Radar. The derivation of conductivities from field-aligned currents ensures spatial and temporal consistency in the calculated electrodynamic parameters. For all of the magnetic storms studied, the combined energy input from precipitating particles exhibits sharply-peaked maxima for small scale structures at the times of local minima in DsT, suggesting a close coupling between magnetospheric and/or ring current energy content and the high latitude currents driven by field-aligned currents. We speculate that these relatively rapid increases and decreases of the high latitude energy deposition may be a result of the variation of ionospheric conductance with field-aligned current strength, leading to a nonlinear relation between current and voltage, and impulsive transfer of energy from the magnetosphere to the ionosphere. © 2018 BBSCS RN SWS. All rights reserved |
| Starting Page | 169 |
| Ending Page | 169 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| DOI | 10.31401/sungeo.2018.02.08 |
| Volume Number | 13 |
| Alternate Webpage(s) | http://newserver.stil.bas.bg/SUNGEO/00SGArhiv/SG_v13_No2_2018-pp-169-172.pdf |
| Alternate Webpage(s) | https://doi.org/10.31401/sungeo.2018.02.08 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
