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Indian Journal of Radio & Space Physics (IJRSP) >
IJRSP Vol.41 [2012] >
IJRSP Vol.41(2) [April 2012] >
| Title: | Planetary wave coupling of the mesosphere-lower thermosphere-ionosphere (MLTI) region during deep solar minimum 2005-2008 |
| Authors: | Dhanya, R
Gurubaran, S
Sathishkumar, S |
| Keywords: | Mesosphere-lower thermosphere-ionosphere (MLTI) coupling
Equatorial electrojet (EEJ), Planetary wave
Ultra fast Kelvin waves (UFK) |
| Issue Date: | Apr-2012 |
| Publisher: | NISCAIR-CSIR, India |
| PACS No.: | 92.60.hb; 92.60.hc |
| Abstract: | The present study investigates the role of planetary-scale waves in the
mesosphere-lower thermosphere-ionosphere (MLTI) coupling during the deep solar
minimum period of 2005-2008. In the absence of severe magnetic disturbances, it
is expected that much of the observed variations in low latitude ionospheric
current system, the equatorial electrojet (EEJ), in particular, is expected to
be driven by global scale waves propagating from below. The availability of
continuous wind data from MF radar at mesospheric heights and geomagnetic field
variations, the latter providing a measure of the strength of the ionospheric
current system provides a unique opportunity to investigate the role of
planetary-scale waves in driving the variabilities in the ionospheric current
system during this solar minimum epoch. The study presents interesting findings
on the role of planetary waves, especially the 3.5-day ultra-fast Kelvin wave
and the 6.5-day wave in the low latitude
MLTI coupling. |
| Page(s): | 271-284 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-105X (Online); 0367-8393 (Print) |
| Source: | IJRSP Vol.41(2) [April 2012]
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