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Browsing by Author "Nade, D.P."

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Analysis of plasma bubbles observed in night airglow emission line OI 630.0 nm from Kolhapur using all sky imager

Sharma, A.K.; Nade, D.P.; Nilte, S.S.; Ghodpage, R.N.; Patil, P.T.; Rokade, M.V.; Vhatkar, R.S. (2012)

All-sky imager (ASI) located at Kolhapur (16.8º N, 74.2º E), India is used to observe OI 630.0 nm night airglow emission (at an altitude 250 km) during clear moonless nights. To study the characteristics of night airglow ...
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 ...
Development of fast image analysis technique for All-Sky images

Sharma, A.K.; Nade, D.P.; Nikte, S.S.; Ghodpage, R.N.; Patil, P.T.; Rokade, M.V.; Vhatkar, R.S.; Gurubaran, S. (2014)

This article describes the possibility of using the fast image analysis technique for qualitative and quantitative analysis of equatorial plasma bubble obtained using All-Sky imager (ASI) data. Automated image processing ...
Difficulties in the study of cosmic radio noise absorption at 30 MHz using riometer at low latitude station, Kolhapur (Lat-16.8°N, Long-74.25°E)

Nikte, S.S.; Sharma, A.K.; Nade, D.P.; Rokade, M.V.; Ghodpage, R.N.; Patil, P.T.; Bhonsle, R.V. (2014)

A dual dipole antenna has been installed at low latitude station Kolhapur (Geographic 16.8°N, 74.25°E), Maharashtra, India for the study of cosmic radio noise absorption using Solid State Riometer (which operates at 30 ...
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 ...
Field of view determination and spatial calibration of night airglow all-sky images

Patil, P.T.; Patil, R.P.; Ghodpage, R.N.; Patil, S.B.; Nade, D.P. (2015)

The various phenomenon and structures observed in night airglow all-sky imager (ASI) images (such as, drift motions of gravity waves and plasma bubbles) these are accurately measured only after the spatial calibration of ...
Geographical analysis of equatorial plasma bubbles by GPS and nightglow measurements

Nade, D.P.; Shetti, D.J.; Sharma, A.K.; Taori, A.; Chavan, G.A.; Patil, P.T.; Ghodpage, R.N.; Gurav, O.B.; Nikte, S.S. (2015)

This work about the zonal drift velocity and signature of equatorial plasma bubbles (EPBs) by measurements of global positioning system (GPS) receiver and all sky imager (ASI) operating in India, at the low latitude region. ...
Observations of plasma blobs by OI 630 nm using ASI and photometer over Kolhapur, India

Nade, D.P.; Sharma, A.K.; Nikte, S.S.; Chavan, G.A.; Ghodpage, R.N.; Patil, P.T.; Gurubaran, S. (2014)

This paper presents observations of plasma blobs by nightglow OI 630.0 nm emissions using ground-based techniques, all sky imager and photometer from Kolhapur. The nightglow observations have been made at low latitude ...
Occurrence of equatorial plasma bubbles over Kolhapur

Sharma, A.K.; Nade, D.P.; Nikte, S.S.; Patil, P.T.; Ghodpage, R.N.; Vhatkar, R.S.; Rokade, M.V.; Gurubaran, S. (2014)

This paper reports the nightglow observations of OI 630.0 nm emissions, made by using all sky imager operating at low latitude station Kolhapur (16.8°N, 74.2°E and dip lat. 10.6°N) during high sunspot number years of 24th ...
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 diurnal, seasonal and annual variations in the cosmic radio noise absorption at 30 mhz in the Australian antarctic research stations

Nikte, S.S.; Sharma, A.K.; Nade, D.P.; Chavan, G.A.; Rokade, M.V.; Ghodpage, R.N.; Patil, P.T.; Bhonsle, R.V. (2013)

Riometer is equipment used to study the cosmic noise absorption (CNA) by the ionosphere. All the observations were made using riometer with dual dipole antenna system installed at Australian Antarctic divisions. These kinds ...
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 ...
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 ...
Zonal velocity of the equatorial plasma bubbles over Kolhapur, India

Nade, D.P.; Sharma, A.K.; Nikte, S.S.; Patil, P.T.; Ghodpage, R.N.; Rokade, M.V.; Gurubaran, S.; Taori, A.; Sahai, Y. (2013)

This paper presents the observations of zonal drift velocities of equatorial ionospheric plasma bubbles and their comparison with model values. These velocities are determined by nightglow OI 630.0 nm images. The nightglow ...

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