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Browsing by Author "Gaikwad, H.P."

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Airglow imaging observations of some evolutionary aspects of equatorial plasma bubbles from Indian sector

Gurav, O.B.; Narayanan, V.L.; Sharma, A.K.; Ghodpage, R.N.; Gaikwad, H.P. (2019)

The ground-based all sky imager (ASI) is an advanced optical technique, capable of measuring the strong F-region nightglow in OI 630.0 nm emission from atomic oxygen. This emission is used to study the large-scale F-region ...
The day-to-day variability in the Mesosphere and Lower Thermosphere in low latitudes: a study using MF radar

Gaikwad, H.P.; Fadnavis, S.; Gurav, O.B.; Bhosale, J.L.; Sharma, A.K.; Patil, P.T.; Ghodpage, R.N.; Sutar, M.M.; Chavan, G.A.; Birajdar, A.T.; Shetti, D.J. (2022)

This study presents the analysis of planetary waves (PWs) using daily mean wind velocities for four years (August 2013 to July 2017) of continuous measurements using MF radar over the low latitude Indian region Kolhapur ...
Dependence of Coherence Scales of Ionospheric Scintillation Patterns on Magnetic Activity

Chavan, G.A.; Sharma, A.K.; Gurav, O.B.; Gaikwad, H.P.; Nade, D.P.; Nikte, S.S.; Ghodpage, R.N.; Patil, P.T. (2016)

The amplitude scintillation data, recorded at 251 MHz by two spaced receivers at low latitude station Kolhapur [16.42oN, 74.2oE] are used. We have considered data of magnetically disturbed days (Ap[20) to investigate the ...
Diurnal, monthly and seasonal variation of mean winds in the MLT region observed over Kolhapur using MF radar

Sharma, A.K.; Gaikwad, H.P.; Ratnam, M. Venkat; Gurav, O.B.; Ramanjaneyulu, L.; Chavan, G.A.; Sathishkumar, S. (2018)

Medium Frequency (MF) radar located at Kolhapur (16.8 N, 74.2 E) has been upgraded in August 2013. Since then continuous measurements of zonal and meridional winds are obtained covering larger altitudes from the Mesosphere ...
Dynamics of ionospheric irregularities in increasing phase of 24th solar cycle at Kolhapur [16.4 deg N, 74.2 deg E]

Sharma, A.K.; Chavan, G.A.; Gurav, O.B.; Gaikwad, H.P.; Ghodpage, R.N.; Nade, D.P. (2017)

In this paper we have focused on drift of irregularities using amplitude scintillations for period January 2011 to December 2015. The data of VHF amplitude scintillations and all sky imager at Kolhapur has been used to ...
Seasonal, annual, and interannual variability in MLT quasi-two-day waves over the low-latitude region Kolhapur (16.8°N; 74.2°E),

Gaikwad, H.P.; Sharma, A.K.; Gurav, O.B.; Chavan, G.A.; Nade, D.P.; Patil, P.T.; Nikite, S.S.; Naniwadekar, G.P. (2019)

This study presents the quasi-two-day wave (Q2DW) characteristics of the mesosphere and lower thermosphere (MLT) region obtained by taking hourly mean values of horizontal wind velocities for 4 years (August 2013–July ...
Study of equatorial plasma bubbles using all sky imager and scintillation technique from Kolhapur station: a case study

Sharma, A.K.; Gurav, O.B.; Gaikwad, H.P.; Chavan, G.A.; Nade, D.P.; Nikte, S.S.; Ghodpage, R.N.; Patil, P.T. (2018)

The nightglow observations of OI 630.0 nm emission carried out from low latitude station Kolhapur using All Sky Imager (ASI) with 140∘ field of view (FOV) for the month of April 2011 are used. The images were processed ...
Variation in occurrence of equatorial plasma bubbles (EPBs) using All Sky Imager from low latitude station Kolhapur (16.8 deg N, 74.2 deg E, 10.6 deg dip. Lat.)

Sharma, A.K.; Gurav, O.B.; Chavan, G.A.; Gaikwad, H.P.; Ghodpage, R.N.; Patil, P.T. (2017)

All Sky Imager (ASI) data of over 351 nights with OI 630.0 nm emission recorded during 2011 to 2015 (increasing phase of 24th solar cycle) are analyzed to study the percentage occurrence of EPBs. The ASI is installed at ...
Zonal Drift Velocity of Equatorial Plasma Bubbles During Ascending Phase of 24th Solar Cycle Using All-Sky Imager Over Kolhapur, India

Gurav, O.B.; Sharma, A.K.; Ghodpage, R.N.; Nade, D.P.; Chavan, G.A.; Gaikwad, H.P.; Patil, P.T. (2018)

This paper reports the statistical analysis of zonal drift velocity of equatorial plasma bubbles (EPBs) inferred from advanced optical technique (all-sky imager) with OI 630.0-nm airglow emission from January to April ...

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