Browsing by Author "Pallamraju, D."

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Absence of streaming plasma waves around noontime over Thumba in recent times: Is it related to the movement of the dip equator?

Sekar, R.; Gupta, S.P.; Acharya, Y.B.; Chakrabarty, D.; Pallamraju, D.; Pathan, B.M.; Tiwari, D.; Choudhary, R.K. (2013)

Systematic ground-based magnetometer measurements from Thumba (8.47°N, 76.6°E) and Tirunelveli (8.73°N, 77.8°E), India, revealed a movement of the magnetic dip equator towards the south. The magnetic dip angle measured ...
Effects of prolonged southward interplanetary magnetic field on low-latitude ionospheric electron density

Bagiya, Mala S.; Hazarika, Rumajyoti; Laskar, Fazlul I.; Sunda, Surendra; Gurubaran, S.; Chakrabarty, D.; Bhuyan, P.K.; Sridharan, R.; Veenadhari, B.; Pallamraju, D. (2014)

The present work describes the low-latitude ionospheric variability during an unusually prolonged (~33 h) geomagnetically disturbed condition that prevailed during 15–16 July 2012. The low-latitude electron density in ...
Quasi-two-day wave amplification through interhemispheric coupling during the 2010 austral summer

Singh, D.; Mitra, G.; Guharay, A.; Pallamraju, D.; Gurubaran, S. (2023)

A quasi-two-day wave (QTDW) event during January-February 2010 is investigated using the MERRA-2 reanalysis dataset. MERRA-2 data reveals the growth of the QTDW westward propagating wavenumber 3 preceded by a weak westward ...

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