Search Results - "KAKAD, B"

A New Method for Prediction of Peak Sunspot Number and Ascent Time of the Solar Cycle by Kakad, B.

“…The purpose of the present study is to develop an empirical model based on precursors in the preceding solar cycle that can be used to forecast the peak…”
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Evolution of Freshly Generated Equatorial Spread F (F‐ESF) Irregularities on Quiet and Disturbed Days by Gurram, P., Kakad, B., Bhattacharyya, A., Pant, T. K.

“…We examined the seasonal and solar flux dependence of the occurrence of freshly generated intermediate scale (100 m to few km) equatorial spread F (ESF)…”
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Development of intermediate‐scale structure at different altitudes within an equatorial plasma bubble: Implications for L‐band scintillations by Bhattacharyya, A., Kakad, B., Gurram, P., Sripathi, S., Sunda, S.

“…An important aspect of the development of intermediate‐scale length (approximately hundred meters to few kilometers) irregularities in an equatorial plasma…”
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Signal Frequency Dependence of Ionospheric Scintillations: An Indicator of Irregularity Spectrum Characteristics by Bhattacharyya, A., Gurram, P., Kakad, B., Sripathi, S., Sunda, S.

“…Multifrequency scintillation observations show that strong amplitude scintillations on very high frequency (VHF) signals are accompanied by weak L‐band…”
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Study of equinoctial asymmetry in the Equatorial Spread F (ESF) irregularities over Indian region using multi-instrument observations in the descending phase of solar cycle 23 by Sripathi, S., Kakad, B., Bhattacharyya, A.

“…In this paper, we present the results of a morphological study of Equatorial Spread F (ESF) irregularities over Indian region based mainly on observations of…”
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Disturbance dynamo effects over low‐latitude F region: A study by network of VHF spaced receivers by Kakad, B., Surve, G., Tiwari, P., Yadav, V., Bhattacharyya, A.

“…Generation of equatorial spread F (ESF) irregularities resulting from magnetic disturbance is known for past few decades. However, better prediction models for…”
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Active (Evolving) Phase of Equatorial Plasma Bubbles Observed Over Tirunelveli by Kakad, B., Gurram, P., Bhattacharyya, A., Prasad, D. S. V. V. D.

“…Usual post‐sunset generation of equatorial spread F (ESF) irregularities on quiet days (Q‐days) and midnight or post‐midnight generation of ESF on magnetically…”
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Quiet and Disturbed Time Characteristics of Blanketing Es (Esb) During Solar Cycle 23 by Yadav, V., Kakad, B., Bhattacharyya, A., Pant, T. K.

“…A sporadic E layer with dense ionization blocks the upper ionospheric layers in ionosonde observations and it is called, blanketing sporadic E (Esb). Although…”
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Earthquake/Tsunami‐Linked Imprints in the Equatorial F Region Zonal Plasma Drifts and Spatial Structures of Plasma Bubbles by Gurram, P., Kakad, B., Ravi Kumar, M., Bhattacharyya, A.

“…We report preseismic and postseismic distinct features observed in equatorial ionospheric F region in Indian longitude during two major earthquakes that…”
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Development of intermediate scale structure near the peak of the F region within an equatorial plasma bubble by Bhattacharyya, A., Kakad, B., Sripathi, S., Jeeva, K., Nair, K. U.

“…Scintillation observations are used to study the evolution of intermediate scale (~100 m–few kilometers) irregularities through growth of the Rayleigh‐Taylor…”
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Structuring of intermediate scale equatorial spread F irregularities during intense geomagnetic storm of solar cycle 24 by Kakad, B., Gurram, P., Tripura Sundari, P. N. B., Bhattacharyya, A.

“…Here we examine the structuring of equatorial plasma bubble (EPB) during intense geomagnetic storm of solar cycle (SC) 24 that occurred on 17 March 2015 using…”
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Effect of Magnetic Storm Related Thermospheric Changes on the Evolution of Equatorial Plasma Bubbles by Bhattacharyya, A., Fedrizzi, M., Fuller‐Rowell, T. J., Gurram, P., Kakad, B., Sripathi, S., Sunda, S.

“…Past efforts to predict scintillations on VHF and L‐band radio signals recorded at equatorial and low‐latitude stations have been mostly based on a theoretical…”
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Peculiar features of ionospheric F3 layer during prolonged solar minimum (2007-2009) by Nayak, C. K., Yadav, V., Kakad, B., Sripathi, S., Emperumal, K., Pant, T. K., Bhattacharyya, A., Jin, Shuanggen

“…We present the seasonal and local time occurrence of ionospheric F3 layer over Tirunelveli (geographic longitude 77.8°E, geographic latitude 8.7°N, dip 0.7°)…”
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Study of disturbance dynamo effects at nighttime equatorial F region in Indian longitude by Kakad, B., Tiwari, D., Pant, T. K.

“…Post sunset height of F layer may significantly increase or decrease as compared to their monthly quiet time pattern due to superimposed disturbed time…”
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Power spectral characteristics of ESF irregularities during magnetically quiet and disturbed days by Kakad, B., Nayak, C.K., Bhattacharyya, A.

“…Amplitude scintillations on 251MHz signal recorded by spaced receivers at Tirunelveli (8.7°N, 77.8°E, dip latitude 0.6°N) for eight months during 1995–2005 are…”
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Study of equatorial E region irregularities using rare daytime VHF scintillation observations by Yadav, V., Kakad, B., Pant, T. K., Bhattacharyya, A., Prasad, D. S. V. V. D.

“…Scintillations on VHF radio signal are sparsely observed during daytime due to unavailability of strong electron density irregularities in equatorial E or F…”
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Magnetic activity linked generation of nighttime equatorial spread F irregularities by Kakad, B., Jeeva, K., Nair, K. U., Bhattacharyya, A.

“…Results derived from a statistical study of the generation of equatorial spread F (ESF) irregularities as a result of magnetic activity based on spaced…”
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Occurrence of blanketing Es layer (Esb) over the equatorial region during the peculiar minimum of solar cycle 24 by V. Yadav, B. Kakad, C. K. Nayak, G. Surve, K. Emperumel

“…A thin and highly dense sporadic E layer, which can occasionally block the upper ionospheric layers, is called blanketing sporadic E (Esb). We present the…”
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Study of post sunset vertical plasma drift at equatorial F-region using long-term (1990–2003) ionosonde measurements in Indian longitude by Kakad, B., Tiwari, D., Pant, T.K.

“…Ionosonde measurements from Trivandrum (77°E, 8.5°N, dip 0.5°N) are used to investigate the seasonal and solar flux dependence of peak height, and vertical…”
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Simultaneous observations of ESF irregularities over Indian region using radar and GPS by SRIPATHI, S, BOSE, S, PATRA, A. K, PANT, T. K, KAKAD, B, BHATTACHARYYA, A

“…In this paper, we present simultaneous observations of temporal and spatial variability of total electron content (TEC) and GPS amplitude scintillations on L1…”
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