Post sunset equatorial spread-F at Kwajalein and interplanetary magnetic field
Post sunset equatorial spread-F at Kwajalein and interplanetary magnetic field
- New search for: Rastogi, R.G.
- New search for: Chandra, H.
- New search for: Janardhan, P.
- New search for: Reinisch, B.W.
- New search for: Bisoi, Susanta Kumar
- New search for: Rastogi, R.G.
- New search for: Chandra, H.
- New search for: Janardhan, P.
- New search for: Reinisch, B.W.
- New search for: Bisoi, Susanta Kumar
AbstractWe connect the time sequence of changes in the IMF-Bz to the development of spread-F at an equatorial station Kwajalein on three different nights in November 2004, one during a geomagnetic quiet period and other two during geomagnetic disturbed periods. The chosen days show clear and smooth variations of IMF-Bz without any large fluctuations thereby enabling one to correlate changes in equatorial spread-F with corresponding changes in IMF-Bz. It is shown that a slow and continuous increase in the IMF-Bz over a duration of few hours has a similar effect on the equatorial ionosphere as of a sudden northward turning of the IMF-Bz in causing an electric field through the polar region and then to the equator. We conclude that the Spread-F at equatorial and low latitudes are due to echoes from ionization irregularities that arise due to the plasma instabilities generated by an eastward electric field on the large plasma density gradient in or below the base of the F-layer during any period of the night time along with the gravity driven Rayleigh-Taylor instability.
Document information
Post sunset equatorial spread-F at Kwajalein and interplanetary magnetic field
Advances in Space Research ; 60 , 8 ; 1708-1715
2017-06-11
8 pages
Article (Journal)
Electronic Resource
English
Similar titles
Kwajalein Infrastructure Prioritization Methodology
| NTIS | 2012
Vertical shear at the equatorial F-region ionosphere during post-sunset hours
| Online Contents | 2012
Pile Load Test Program: Kwajalein Drydock
| British Library Conference Proceedings | 1998