Dr. Eswar Sunkara

Qualification : Ph.D. (Sri Venkateswara University)

Details of Educational Qualification:

Course Specialization Group College Name/University Year of Passing
Post-Doctoral research associate Space Physics Space Physics Chungnam University, Daejeon, Korea 2014-2015
Ph.D. Physics Physics Sri Venkateswara University, Tirupati 2012
M.Sc. Physics Physics Sri Venkateswara University, Tirupati 2000
B.Sc. Physics, Chemistry & Mathematics B.Sc. Sri Venkateswara University, Tirupati 1996

 

 

My Publications

S.No Title of the Paper Full Details of Journal Name / Conference Name, Volume number, page number, Date
1 Anthropogenic Influence on the Antarctic Mesospheric Cooling Observed during the Southern Hemisphere Minor Sudden Stratospheric Warming Atmosphere 2022, 13, 1475.https://doi.org/10.3390/atmos13091475
2 “A meteor radar network study on the polar-to-tropical mesospheric coupling during the 2018 Sudden Stratosphere Warming” J. Geophys. Res-Space Physics (Accepted for publication)
3 “Evidence of Nonlinear Interaction of Semi-Diurnal Tides with Planetary waves from MLT winds measured by King Sejong Station (62.22°S, 58.17°W) Meteor Radar” J. Geophys. Res-Space Physics., (Accepted for publication).
4 “3-D Regional Imaging of Ionosphere Over Africa through Assimilating Satellite and Ground-Based Data” J. Geophys. Res-Space Physics., (Accepted for publication).
5 “Long-term variability of Equatorial Middle Atmospheric Ozone using SABER/TIMED Satellite Observations” Journal of Atmospheric and Solar-Terrestrial Physics. Elsevier Ltd (Revised).
6 “Temperature Tele-connections between the Tropical and Polar Middle Atmosphere in the Southern Hemisphere during the 2010 Minor Sudden Stratospheric Warming” Atmospheric Science Letters., https://doi.org/10.1002/asl.1010
7 “The Observation and SD-WACCM Simulation of Planetary Wave Activity in the Middle Atmosphere During the 2019 Southern Hemispheric Sudden Stratospheric Warming” J. Geophys. Res-Space Physics., https://doi.org/10.1029/2020JA029094 2020
8 Unusual changes in the Antarctic middle atmosphere during the 2019 warming in the Southern Hemisphere Geophysical Research Letters, 47, e2020GL089199. https://doi.org/10.1029/2020GL089199
9 Low-latitude mesospheric signatures observed during the 2017 sudden stratospheric warming using the fuke meteor radar and ERA-5 Journal of Atmospheric and Solar-Terrestrial Physics. Elsevier Ltd, 207(June), p. 105352. https://doi.org/10.1016/j.jastp.2020.105352
10 “Advanced Meteor Radar observations of Mesospheric Dynamics during 2017 Minor SSW Over the Tropical Region” Advances in Space Research (ASR)., https://doi.org/10.1016/j.asr.2019.05.039
11 “Effect of Southern Hemisphere (SH) Sudden Stratospheric Warmings (SSWs) on Antarctica mesospheric tides: First observational study” J. Geophys. Res.., DOI: 10.1002/2017JA024839, 2018.
12 “A case study of convectively generated gravity waves coupling of the lower atmosphere and mesosphere-lower thermosphere (MLT) over the tropical region: An observational evidence” J. Atmos. Sol. Terr. Phys., https://doi.org/10.1016/j.jastp.2018.01.005 (2018).
13 “Stratosphere-mesosphere coupling through vertically propagating gravity waves during Mesospheric Temperature Inversion (MTI): An evidence” Int. J. Current. Res. Reve (IJCRR), DOI: 10.7324/IJCRR.2018.1011, 2018.
14 “Unusual changes in Stratospheric ozone and water vapor over Antarctica and its relation to mesosphere dynamics during a minor sudden stratosphere warming” Int. J. Current. Res. Reve (IJCRR), DOI: 10.7324/IJCRR.2018.10108.
15 “Coupling between the lower and middle atmosphere observed during a very severe cyclonic storm ‘Madi’" J. Atmos. Sol. Terr. Phys., https://doi.org/10.1016/j.jastp.2018.01.029, 2018.
16 “Do minor sudden stratospheric warmings in the Southern Hemisphere (SH) impact coupling between stratosphere and mesosphere–lower thermosphere (MLT) like major warmings Earth Planets Sp. (Express Letters)., 69:119,2017. DOI 10.1186/s40623-017-0704-5.
17 “Evidence for Dynamical Coupling of Stratosphere-Mesosphere during recent minor Stratospheric Warmings in Southern Hemisphere” J. Atmos. Sol. Terr. Phys., 140 (2016) 55–64, 2016.
18 “Advanced Meteor radar at Tirupati: System details and first results” J. Geophys. Res., DOI: 10.1002/2014JD021781,2014.
19 “Lower and middle atmospheric responses to the 22 July 2009 total solar eclipse” Indian Journal of Radio & Space Physics., Vol 43, February 2014.
20 “Short-period gravity wave momentum fluxes observed in the tropical troposphere, stratosphere and mesosphere” J. Atmos. Sol. Terr. Phys., 1-7,105-106, Dec 2013.
21 “Morphology of Tropical Mesospheric Echoes Observed by VHF Radar” Earth Planets Space., 65, 97–102, 2013, doi:10.5047/eps.2012.06.010.
22 “Water vapor Attenuation studies for Ka and V band frequencies over a Tropical region” Int. Jou. of Current Res. Rev.(IJCRR) , Vol:5, Issue:05, PP 7-16.2013.
23 “Effect of the Annual Solar Eclipse of 15 January 2010 on the Low-Latitude Mesosphere” J. Atmos. Sol. Terr. Phys.,.(2012) doi:10.1016/j.jastp.2012.02.
24 “Comparision of mesospheric mean vertical winds between MST Radar and Emperical Model over a tropical” Current Science., VOL. 102, NO. 9, 10 MAY 2012.
25 “Low-latitude Mesospheric Vertical Winds Observed Using VHF Radar” J. Geophys. Res., 116, D22117, doi: 10.1029/2011JD016385.
26 “First time observation of solar eclipse induced gravity waves over the low- latitude Station Gadanki (13.5o N, 79.2oE)” 3rd AP SCIENCE CONGRESS.12-14, November 2010, JNTU, Hyderabad, India.
27 “Response of the lower atmosphere to the annual solar eclipse of 15 January 2010” 98th Indian Science Congress, 3-7, January 2011, SRM University, Chennai, India.
28 “Effect of the annual solar eclipse 15 January 2010 on the low latitude mesosphere” National workshop: Results on solar eclipse (NaWRoSE-2011), January 27-28, 2011 Space Physics Laboratory (SPL), VSSC,Trivendrum, India.
29 “High frequency waves observed in the middle atmosphere during the annular solar eclipse of 15 January 2010 over a tropical station” National workshop: Results on solar eclipse (NaWRoSE-2011), January 27-28, 2011, Space Physics Laboratory (SPL), Vikram Sarabhai Space Centre (VSSC), TRIVANDRUM,India.
30 “Effect of the annual solar eclipse 15 January 2010 on the low latitude mesosphere” National Conference on Advances in Atmospheric Remote Sensing, Weather prediction& Climate Change (ARWPCC-2011), 10-11 March, 2011, S.V. University, Tirupati,India.
31 “Short-period Gravity Wave Momentum Fluxes observed in Tropical Mesosphere- Stratosphere-Troposphere region” 4th AP SCIENCE CONGRESS.14-16, November 2011, GITAM University, Vishakapatnam, India
32 “First Observations of Low-latitude Mesospheric Vertical Winds Observed Using VHF Radar and comparison with Empirical model” 4th AP SCIENCE CONGRESS.14-16, November 2011, GITAM University, Vishakapatnam, India.
33 “Investigations on the variability of the mesospheric echoes, winds, and waves over a tropical region” National Space Science Symposium (NSSS-12), 14-17 February 2012 S.V.University, Tirupati, India.
34 “Effect of the solar eclipse of 15b January 2010 on low-latitude mesosphere” Second international workshop on the frontiers of atmospheric physics and technology, 01-03 March 2012, Yogi Vemana University, Kadapa, India.
35 “Investigations on the variability of the mesospheric echoes, winds, waves and associated momentum fluxes over a tropical region” 13th International Workshop on Technical and Scientific Aspects of MST Radar (MST13) ,19-23 March 2012, Kühlungsborn, Germany.
36 “Variability of the gravity wave forcing from troposphere to mesosphere: By momentum flux estimation” DST Brain Storming Session at SRM University, Chennai, India on 26th & 27th April 2013.
37 “Enhanced Meteor Detection Radar (EMDR) installed at Tirupati: Comparison with different Radars” 6th AP SCIENCE CONGRESS.14-16, November 2013, University of Hyderabad, Hyderabad, India.
38 “Vertical and latitudinal wave forcing observed with a network of Radars over Indian region” 6th AP SCIENCE CONGRESS.14-16, November 2013, University of Hyderabad, Hyderabad, India.
39 “Vertical and latitudinal wave forcing observed with a network of Radars over Indian region” National Space Science Symposium (NSSS-13), 29 January-1 February 2014, Dibrugarh University, Dibrugarh, India.
40 “ Enhanced Meteor Detection Radar (EMDR) installed at Tirupati: Comparison with different Radars” National Space Science Symposium (NSSS-13), 29 January-1 February 2014, Dibrugarh University, Dibrugarh, India.
41 “Advanced Meteor Radar at Tirupati:System details and First results” 14th International Workshop on Technical and Scientific Aspects of MST Radar (MST14/iMST1) , 25-31 May 2014, São José dos Campos, Brasil
42 “Vertical and latitudinal wave forcing observed with network of Radars over Indian region” 14th International Workshop on Technical and Scientific Aspects of MST Radar (MST14/iMST1) , 25-31 May 2014, São José dos Campos, Brazil.
43 “Evidence for Dynamical Coupling of Stratosphere-Mesosphere and Lower thermosphere (MLT) during 2010 minor Stratospheric Warming in Southern Hemisphere” JpGU-AGU Joint meeting, 20-25 May 2017, Chiba, Japan.
44 “Effect of Stratosphere Sudden Warmings on the mesosphere structure and dynamics over Antarctica: An overview” 15th International Workshop on Technical and Scientific Aspects of MST Radar (MST15/iMST2), 26-31May 2017, NIPR, Japan.
45 “Signature of nonlinear interaction of semidiurnal tides and planetary waves over Antarctic mesosphere-lower thermosphere (MLT): Some new insights” KSSS Fall meeting, 25-27 October 2017, Busan, Korea.
46 “The response of Antarctica MLT region for the recent Sudden Stratospheric Warming (SSW) over Southern Hemisphere (SH): An overview” AGU-Fall meeting, 11-15 December, 2017, New Orleans, LA, USA.
47 “Teleconnections between Low and High-Latitude MLT regions during the Southern Hemisphere (SH) Sudden Stratospheric Warmings (SSWs)” AGU-Fall meeting, 11-15 December, 2017, New Orleans, LA, USA.
48 “Signatures of low latitude–high latitude coupling in the Mesosphere-Lower Thermosphere (MLT) during Sudden Stratospheric Warmings: Some new insights” KSSS (KGU)-2018 Spring meeting, 9-11 May, 2018-Hongchun Daemyung Vivaldi Park, Seoul, Korea.

 

 

Book Chapter

  • 1. Statistical Parameter Estimation for Observation Error Modelling: Application to Meteor Radars, as a Chapter in Data Assimilation for Atmospheric, Oceanic, and Hydrologic Applications, Vol. IV, August 2021.