Pre-storm behaviour of NmF2 and TEC (GPS) over equatorial and low latitude stations in the Indian sector
PL Saranya, K Venkatesh, D Prasad, PVSR Rao… - Advances in space …, 2011 - Elsevier
The pre-storm behavior of NmF 2 and TEC over an equatorial station, Trivandrum (8.47° N,
76.91° E, dip 0.6° S) and a low latitude station, Waltair (17.7° N, 83.3° E, dip 20° N) has
been studied for a total of 18 strong geomagnetic storms with DST⩽− 100 nT. The
simultaneous measurements of GPS-TEC and NmF 2 over Trivandrum and Waltair during
the period 2000–2005 have been considered for the present study. It is found that there is a
substantial increase in NmF 2 and TEC before the onset of the storm over Waltair, while the …
76.91° E, dip 0.6° S) and a low latitude station, Waltair (17.7° N, 83.3° E, dip 20° N) has
been studied for a total of 18 strong geomagnetic storms with DST⩽− 100 nT. The
simultaneous measurements of GPS-TEC and NmF 2 over Trivandrum and Waltair during
the period 2000–2005 have been considered for the present study. It is found that there is a
substantial increase in NmF 2 and TEC before the onset of the storm over Waltair, while the …
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