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Found 16 entries in the Bibliography.
Showing entries from 1 through 16
2022 |
The paper observes the super-imposed effects of intense and moderate solar flares and Coronal Mass Ejection (CME) and High Speed Solar Wind (HSSW) driven geomagnetic storm events on the ionosphere and thermosphere at mid and high latitudes during low solar activity periods. The observations are conducted over a fixed longitude (∼117°W geographic) during May 27–31, 2017 (duration with intense geomagnetic storm without any significant solar flare event), September 3–6, 2017 (duration with solar flare events), September ... Sur, Dibyendu; Ray, Sarbani; Paul, Ashik; Published by: Advances in Space Research Published on: jul YEAR: 2022   DOI: 10.1016/j.asr.2022.04.024 CME driven storms; HSSW driven storms; Joule heating; O/N ratio; Plasmaspheric contributions; Solar flare |
In this study, we investigate the negative ionospheric response over the European sector during two storms that took place on 8 September 2017, primarily, by exploiting observations over ten European locations. The spatial and temporal variations of TEC, foF2 and hmF2 ionospheric characteristics are examined with the aim to explain the physical mechanisms underlying the strong negative ionospheric response. We detected very sharp electron density (in terms of foF2 and TEC) decrease during the main phases of the two storms an ... Oikonomou, Christina; Haralambous, Haris; Paul, Ashik; Ray, Sarbany; Alfonsi, Lucilla; Cesaroni, Claudio; Sur, Dibyendu; Published by: Advances in Space Research Published on: aug YEAR: 2022   DOI: 10.1016/j.asr.2022.05.035 Large-scale traveling ionospheric disturbances; Mid-latitude ionospheric trough; September 2017 geomagnetic storm; Swarm satellite |
2021 |
The present paper reports magnetospheric-thermospheric-ionospheric interactions, observed during geomagnetically disturbed periods in 2015–2016 from mid-latitude stations located in the US-Pacific longitudes (\textasciitilde120°W geographic). These interactions have been analyzed for a series of Coronal Mass Ejection (CME) and High Speed Solar Wind (HSSW) driven geomagnetic storms during the moderate solar activity periods. The geomagnetically disturbed periods under consideration in this paper have an interesting feature ... Sur, Dibyendu; Ray, Sarbani; Paul, Ashik; Published by: Advances in Space Research Published on: aug YEAR: 2021   DOI: 10.1016/j.asr.2021.03.027 CME and HSSW storms; Joule heating; Meridional and zonal wind; O/N ratio; Plasma transport; VTEC |
Carter, Jennifer; Samsonov, AA; Milan, Stephen; Branduardi-Raymont, Graziella; Ridley, Aaron; Paxton, Larry; Anderson, Brian; Waters, Colin; Edwards, Thomas; Published by: Journal of Geophysical Research: Space Physics Published on: |
Carter, Jennifer; Samsonov, Andrey; Milan, Stephen; Branduardi-Raymont, Graziella; Ridley, Aaron; Paxton, Larry; Anderson, Brian; Waters, Colin; Edwards, Thomas; Published by: Earth and Space Science Open Archive ESSOAr Published on: |
2020 |
Chakraborty, Sumanjit; Ray, Sarbani; Sur, Dibyendu; Datta, Abhirup; Paul, Ashik; Published by: Advances in Space Research Published on: |
2019 |
This paper presents the response of the ionosphere during the intense geomagnetic storms of October 12\textendash20, 2016 and May 26\textendash31, 2017 which occurred during the declining phase of the solar cycle 24. Total Electron Content (TEC) from GPS measured at Indore, Calcutta and Siliguri having geomagnetic dips varying from 32.23\textdegreeN, 32\textdegreeN and 39.49\textdegreeN respectively and at the International GNSS Service (IGS) stations at Lucknow (beyond anomaly crest), Hyderabad (between geomagnetic equat ... Chakraborty, S.; Ray, S.; Sur, D.; Datta, A.; Paul, A.; Published by: Advances in Space Research Published on: 10/2019 YEAR: 2019   DOI: 10.1016/j.asr.2019.09.047 |
It has already been established that during the main phase and recovery phase of any geomagnetic storm, thermospheric O/N2 column density ratio decreases in the high latitudes Sur, Dibyendu; Ray, Sarbani; Paul, Ashik; Published by: Published on: |
2012 |
This paper presents remotely sensed neutral temperatures obtained from ultraviolet observations and compares them with temperatures from the NRLMSISE-00 version of the Mass Spectrometer and Incoherent Scatter (MSIS) model (unconstrained and constrained to match the total densities from satellite drag). Latitudinal profiles of the temperatures in the Earth\textquoterights thermosphere are obtained by inversion of high-resolution (\~1.3\ \r A) observations of the (1,1) and (5,4) Lyman-Birge-Hopfield (LBH) bands of N Krywonos, Andrey; Murray, D.; Eastes, R.; Aksnes, A.; Budzien, S.; Daniell, R.; Published by: Journal of Geophysical Research Published on: 09/2012 YEAR: 2012   DOI: 10.1029/2011JA017226 airglow; N2; remote sensing; satellite drag; temperature; thermosphere |
2011 |
Modeled and observed N 2 Lyman-Birge-Hopfield band emissions: A comparison
Eastes, R.; Murray, D.; Aksnes, A.; Budzien, S.; Daniell, R.; Krywonos, A.; Published by: Journal of Geophysical Research Published on: Jan-01-2011 YEAR: 2011   DOI: 10.1029/2010JA016417 |
Modeled and observed N2 Lyman-Birge-Hopfield band emissions: A comparison
Eastes, RW; Murray, DJ; Aksnes, A; Budzien, SA; Daniell, RE; Krywonos, A; Published by: Journal of Geophysical Research: Space Physics Published on: |
2009 |
Basu, Su.; Basu, S.; Huba, J.; Krall, J.; McDonald, S.; Makela, J.; Miller, E.; Ray, S.; Groves, K.; Published by: Journal of Geophysical Research Published on: Jan-01-2009 YEAR: 2009   DOI: 10.1029/2008JA013899 |
2008 |
Hecht, JH; Mulligan, T; Strickland, DJ; Kochenash, AJ; Murayama, Y; Tanaka, Y-M; Evans, DS; Conde, MG; Donovan, EF; Rich, FJ; , others; Published by: Journal of Geophysical Research: Space Physics Published on: |
Ultraviolet (UV) spectra obtained from Earth s dayglow contain important information for understanding the thermosphere, and the N 2 Lyman-Birge-Hopfield (LBH) bands are possibly Published by: Published on: |
2007 |
Basu, S; Huba, J; Makela, J; Ray, S; Groves, K; Published by: Published on: |
2006 |
Basu, S; Makela, J; Miller, E; Dasgupta, AK; Ray, S; Groves, K; Rich, FJ; Published by: Published on: |
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