Výsledky vyhledávání - "D. A. Chakrabarty"

Investigation on longitudinal and decadal variations of the equatorial electrojet using a physical model

Autor: B.G. Anandarao, R. Sekar, D. K. Chakrabarty, Kuldeep Pandey

Publikováno v: Advances in Space Research. 68:182-200

A detailed investigation on longitudinal and decadal variations of general characteristics (amplitude, width, peak altitude) of the equatorial electrojet (EEJ) is carried out using a physics-based model of electrojet. A few important aspects that eme

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::da57dddc89b0591ed6169a476a2a0e94
https://doi.org/10.1016/j.asr.2021.02.040

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Signatures of substorm related overshielding electric field at equatorial latitudes under steady southward IMF Bz during main phase of magnetic storm

Autor: Sandeep Kumar, Takashi Kikuchi, S. Tulasiram, Bhaskara Veenadhari, Yusuke Ebihara, Geoffrey D. Reeves, D. K. Chakrabarty

Publikováno v: Advances in Space Research. 64:1975-1988

During the geomagnetic storm periods, the convection electric field penetrates promptly to equatorial latitudes, causing an eastward electric field in the dayside ionosphere. Occasionally, the polarity of the dayside ionospheric electric field is inv

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3ab9c6fc174fedfe199d5de8fa5b9e05
https://doi.org/10.1016/j.asr.2019.04.001

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A review on the upper atmospheric sodium observations from India: Insights

Autor: S. Mondal, D. K. Chakrabarty, R. Sekar, S. Sarkhel, S. Sridharan

Publikováno v: Advances in Space Research. 63:3568-3585

This review article briefly brings out the historical development of atmospheric sodium (Na) measurements over India and the importance of coordinated measurements with multiple techniques to address physical processes in the Earth's upper atmosphere

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::eebf708b65de1e3fcd7b285f3e5577e0
https://doi.org/10.1016/j.asr.2019.02.019

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On the Long Lasting 'C‐Type' Structures in the Sodium Lidargram: The Lifetime of Kelvin‐Helmholtz Billows in the Mesosphere and Lower Thermosphere Region

Autor: Jay Agarwal, Martin G. Mlynczak, Alan Z. Liu, James M. Russell, S. Sarkhel, Norihito Saito, Satonori Nozawa, Xuguang Cai, R. Sekar, Takuya D. Kawahara, D. K. Chakrabarty, S. Mondal, Tao Yuan

Publikováno v: All Physics Faculty Publications

In order to understand the characteristics of long‐lasting “C‐type” structure in the Sodium (Na) lidargram, six cases from different observational locations have been analyzed. The Na lidargram, collected from low‐, middle‐, and high‐la

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e72efeb1646d338f09639e925ba5969
https://doi.org/10.1029/2019ja026630

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