ROTI and scintillation index correlation under quiet and disturbed periods over an Indian low latitude station, Waltair

Lissa, D.; Seemala, Gopi K.; Venkatesh, K.; Prasad, D.S.V.V.D.; Niranjan, K.

doi:10.1016/j.asr.2023.09.060

Advances in Space Research

2024

DOI: 10.1016/j.asr.2023.09.060

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ROTI and scintillation index correlation under quiet and disturbed periods over an Indian low latitude station, Waltair

D. Lissa,

Gopi K. Seemala,

K. Venkatesh

et al.

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2024

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Cited by 3 publications

References 32 publications

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Multi-instrument analysis of L-band amplitude scintillation observed over the Eastern Arabian Peninsula

Darya,

Shaikh,

Nykiel

et al. 2024

Advances in Space Research

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Multi-instrument analysis of L-band amplitude scintillation observed over the Eastern Arabian Peninsula

Darya,

Shaikh,

Nykiel

et al. 2024

Advances in Space Research

View full text Add to dashboard Cite

Morphology of equatorial F-region irregularities over the Indian longitude sector using GPS-derived ROTI observations

Rajana,

Panda,

Jade

et al. 2024

Advances in Space Research

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Geomagnetic storm effect on equatorial ionosphere over Sri Lanka through total electron content observations from continuously operating reference stations network during Mar–Apr 2022

Thiruvarangan,

Rajavarathan,

Panda

et al. 2024

Journal of Applied Geodesy

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The technological advancements in the current era have highlighted the increasing significance of satellite-based positioning, navigation, and timing services in a wide range of dynamic and critical applications. This has led to significant efforts towards enhancing the performance of global navigation satellite systems (GNSS) operating under challenging ionospheric conditions. The Sri Lankan ionosphere region is a focal point of equatorial aeronomy scientists, being situated in the southernmost landmass of the Indian longitude sector within the vicinity of the magnetic equator where a combination of electric, wind, and temperature dynamics exerts a substantial influence on the ionosphere but was relatively unexplored in the past. In the present work, we employed a Kriging interpolation technique on the total electron content (TEC) variables from ten GNSS receivers operating under the Continuously Operating Reference Stations (CORS) network in Sri Lanka first ever of its kind to deliver two-dimensional regional ionospheric TEC maps at hourly intervals, both during quiet and disturbed ionospheric conditions in the equinoctial March and April months of 2022. The latitudinal variation patterns are discernable from the hourly TEC maps. Furthermore, a comparative analysis of the performance of GNSS-derived TEC with that of the routinely published Global Ionospheric Maps (GIMs) confirms overestimation characteristics of the latter irrespective of the local time of observation. The generated regional ionospheric maps are fairly responsive to the onset of the storm and the recovery phase thereafter. The extent of nighttime ionospheric irregularity is also probed through the rate of TEC index (ROTI) variations, demonstrating that the irregularities were insignificant during the selected storm event.

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ROTI and scintillation index correlation under quiet and disturbed periods over an Indian low latitude station, Waltair

Cited by 3 publications

References 32 publications

Multi-instrument analysis of L-band amplitude scintillation observed over the Eastern Arabian Peninsula

Multi-instrument analysis of L-band amplitude scintillation observed over the Eastern Arabian Peninsula

Morphology of equatorial F-region irregularities over the Indian longitude sector using GPS-derived ROTI observations

Geomagnetic storm effect on equatorial ionosphere over Sri Lanka through total electron content observations from continuously operating reference stations network during Mar–Apr 2022

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