ROSES ID: NNH07ZDA001N Selection Year: 2008
Program Element: Focused Science Topic
Principal Investigator: Michael J. Keskinen
Affiliation(s): Naval Research Laboratory
Summary:
An outstanding problem in ionospheric-thermospheric physics, which has a major impact on human technology, is the day-to-day variability of equatorial ionospheric spread-F bubbles. The objective of the proposed research is the development of a predictive model for the day-to-day variability of equatorial spread-F bubble structures. The approach will be to use our recently developed 3D time-dependent first-principles nonlinear plasma fluid simulation model in combination with different seeding mechanisms. The effects of different seeding mechanisms, both separately and in combination, will be studied and assessed. The proposed research is significant in that it will lead to a much improved understanding of the mechanism(s) for the triggering and subsequent growth of equatorial ionospheric spread-F bubbles and a predictive model for the day-to-day variability of these bubble structures.| Performance Year | Reference | Investigation Type | Actions |
|---|---|---|---|
| 1 | Keskinen, M. J.; Vadas, Sharon L.; (2009), Three-dimens... | not set | |
| 1 | Vadas, Sharon L.; Keskinen, M. J.; (2010), Correction t... | not set | |
| 1 | Keskinen, M. J.; (2010), Equatorial ionospheric bubble pre... | not set |
| Performance Year | Reference | Actions |
|---|---|---|
| 1 | Keskinen, M. J.; Vadas, S.; (2008), Excitation of Equato... | |
| 1 | Keskinen, M. J.; Vadas, S.; (2009), Generation of equato... |