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Indian Journal of Radio & Space Physics (IJRSP) >
IJRSP Vol.40 [2011] >
IJRSP Vol.40(4) [August 2011] >
| Title: | Unusual sferics observed at Agra |
| Authors: | Pandey, Uma
Bajpeyi, Anubha
Mishra, Madhurima
Sharma, Abhishek
Singh, Birbal |
| Keywords: | Banded sferics
Narrow band sferics
Lightning
Solar flares
Magnetic storm
Specular reflection |
| Issue Date: | Aug-2011 |
| Publisher: | NISCAIR-CSIR, India |
| PACS No.: | 96.60.qe; 94.30.Lr; 92.60.Pw |
| Abstract: | Employing the experimental setup intended
for whistler observations, a large number of unusual sferics have been recorded
at the low latitude ground station Agra (geomagnetic latitude 18.09°N,
longitude 152.21°E) during six months of observations between 01 November 2009
and 30 April 2010. The data include banded and narrow band sferics whose
occurrences are found to be enhanced occasionally. The results have been
examined as possible effects of lightning, solar flare, magnetic storms, and
earthquake. The unusual enhancement of all types and those of banded structures
have been found to correlate positively with X-ray events and magnetic storms,
respectively. The banded and unusual structures of sferics have been
interpreted in terms of specular reflection from a slab of enhanced ionization
existing at the base of the ionosphere. |
| Page(s): | 183-190 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-105X (Online); 0367-8393 (Print) |
| Source: | IJRSP Vol.40(4) [August 2011]
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