dc.contributor.author |
Thiemann, H. |
|
dc.contributor.author |
Sojka, J.J. |
|
dc.contributor.author |
Eccles, J.J. |
|
dc.contributor.author |
Rao, P.B. |
|
dc.contributor.author |
Rao, P.V.S. Rama |
|
dc.contributor.author |
Sridharan, R. |
|
dc.contributor.author |
Lakhina, G.S. |
|
dc.date.accessioned |
2015-08-24T07:01:50Z |
|
dc.date.accessioned |
2021-02-12T09:27:28Z |
|
dc.date.available |
2015-08-24T07:01:50Z |
|
dc.date.available |
2021-02-12T09:27:28Z |
|
dc.date.issued |
2001 |
|
dc.identifier.citation |
Advances in Space Research, v.27/6-7, p.1065-1069, 2001, doi: 10.1016/S0273-1177(01)00139-9 |
en_US |
dc.identifier.uri |
http://localhost:8080/xmlui/handle/123456789/260 |
|
dc.description.abstract |
Two spread-F flights were performed under equinox conditions in April and September 1998 from the Indian low-latitude station SHAR. Both flights detected plasma bubbles confined to a narrow longitudinal extent. Plasma parameters are measured under two different conditions in the post-sunset ionosphere; when the F-layer is moving upward (19:21 IST launch) and when the F-layer is stationary (20:41 IST launch). Low altitude bubbles during upwelling of the F-region in the prereversal current enhancement phase are characterized by turbulent, non Maxwellian regions. Transitional scale waves with k=−3.6 are observed in the bubbles. This flight also detects strong sharp E-layers during downleg and an intermediate layer at 170km. Nighttime bubbles during almost stationary F-layer conditions show turbulent, Maxwellian features with moderate cooling compared to the undisturbed environment. Transitional scale waves in the bubble region show a spectral index k=−3.1. The spectral power is reduced by around 20dB compared to the sunset flight. |
en_US |
dc.language.iso |
en |
en_US |
dc.subject |
Plasma bubbles |
en_US |
dc.subject |
F-region |
en_US |
dc.subject |
F-layer |
en_US |
dc.subject |
Post sunset |
en_US |
dc.subject |
Equatorial F-region |
en_US |
dc.title |
Indo-German low-latitude project deos: plasma bubbles in the post sunset and nighttime sector |
en_US |
dc.type |
Article |
en_US |
dc.identifier.accession |
090747 |
|