Ph.D (2019) in Physics, University of Kerala
Institute: Space Physics Laboratory, VSSC, ISRO

Thesis title: Investigations on the dynamics of the equatorial and low-latitude ionosphere-thermosphere system and its association with equatorial spread F
Thesis work: The characteristics and climatology of ionospheric gravity wave induced plasma perturbations and quantitative estimation of their role in modulating the day to day variability of nocturnal plasma irregularities at the magnetic equatorial ionosphere (ASR, 2016; JASTP, 2017) Development of empirical models for hind casting Equatorial spread F events (JGR, 2017; JGR 2018 (a))

The physical basis for the role of gravity wave induced plasma perturbations in modulating Equatorial spread F day-to-day variability in is experimentally established using satellite based neutral density profiles (JGR 2018 (b))

Modulation of the day-to-day variability of the onset time of Equatorial spread F in the neural dynamical domain, by neutral wind effects (JGR 2018 (c))

MSc. (2013, 90% marks, University of Kerala), with second rank
Subject: Physics

BSc. (2011, 96% marks, University of Kerala) Subject: main - Physics; Subsidiary: Mathematics and Chemistry

Plus two (2008, 95 % marks)

Secondary school (2006, 94 % marks)

ISRO Junior Research Fellowship (2014)

CSIR UGC-NET (2012)

GATE (2014)

1. Aswathy, R.P., Manju, G. (2017). Gravity wave control on ESF day-to-day variability: an empirical approach. Journal of Geophysical Research: Space Physics., 122 (6), 6791-6798, doi: 10.1002/2017JA023983. ISSN no: 2169-9402

2. Aswathy R. P. and G. Manju. (2018). Hind-casting of Equatorial Spread F (ESF) using seasonal empirical models, Journal of Geophysical Research: Space Physics. 123 (2). 1515–1524, doi.org/10.1002/2017JA025036. . ISSN no: 2169-9402

3. Aswathy, R. P., Manju, G., & Sunda, S. (2018). The Response Time of Equatorial Ionization Anomaly Crest:A Unique Precursor to the Time of Equatorial Spread F Initiation . Journal of Geophysical Research: Space Physics,123 (7). 5949 -5959. doi.org/10.1029/2018JA025469. ISSN no: 2169-9402

4. Aswathy R. P. and G. Manju. (2020). Time of evening zonal drift reversal in F- region and its implications for post sunset ionosphere, Journal of Atmospheric and Solar Terrestrial Physics, 200, 105210, doi.org/10.1016/j.jastp.2020.105210 . ISSN no: 1364-6826

5. Aswathy R. P. and G. Manju. (2020). The post sunset equatorial F- region zonal drift variability and its linkage with equatorial spread F onset and duration over Indian longitudes. Advances in Space Research. https://doi.org/10.1016/j.asr.2020.11.024. ISSN no: 0273-1177

6. Manju G., Aswathy R.P. (2017). Climatology of GW-TIDs in the magnetic equatorial upper thermosphere over India’, Journal of Atmospheric and Solar-Terrestrial Physics, 164, 142–148, doi.org/10.1016/j.jastp.2017.08.015. ISSN no: 1364-6826

7. Manju G and Aswathy R P. (2018), ‘First time estimation of thermospheric neutral densities from seed prturbations of ESF triggering: A novel evidence for ionosphere-thermosphere coupling’, Journal of Geophysical Research: Space Physics, 123 (12). 10,254-10,265, doi:10.1029/2018JA025967 ISSN no: 2169-9402

8. Manju, G., & Aswathy, R. P. (2020).Ionospheric planetary wave activity and its role in equatorial spread F day‐to‐day variability. Journal of Geophysical Research: Space Physics, 125, e2020JA027960. https://doi.org/10.1029/2020JA027960 ISSN no: 2169-9402

9. G. Manju, M.K. MadhavHaridas, Aswathy R.P. (2016). Role of gravity wave seed perturbations in ESF day-to-day variability: A quantitative approach. Advances in Space Research, 57, 1021– 1028, doi.org/10.1016/j.asr.2015.12.019. ISSN no: 0273-1177

10. Manju, G., Tarun K. Pant, Mridula N., Aswathy R. P., P. Sreelatha, Rosmy John, Satheesh Thampi R., Aneesh. N. and Abhishek J. K. In-situ observations of rocket burn induced modulations of the top side ionosphere using the IDEA payload on-board the unique orbiting experimental platform (PS4) of the Indian Polar orbiting Satellite Launch Vehicle mission, Journal of Atmospheric and Solar Terrestrial Physics, 199 (2019) 105203, doi.org/10.1016/j.jastp.2020.105203 ISSN no: 1364- 6826

11. G. Manju , Tarun K. Pant, P. Sreelatha, Santhosh J. Nalluveettil, P. Pradeep Kumar, Nirbhay Kumar Upadhyay, Md. Mosarraf Hossain, Neha Naik, Vipin Kumar Yadav, Rosmy John, Sajeev R., Jothi Ramalingam, Philip George, Amarnath Nandi, N. Mridula, Aswathy R. P. Janmejay Jaiswal Rana, Snehil Srivastava and Satheesh Thampi, New outlook on lunar near surface plasma environment from Chandrayaan-2 lunar lander platform: RAMBHA_LP Payload perspective, Current Science (2020), VOL. 118, NO. 3 ISSN 0011-3891

12. Aswathy, R.P & Manju, G.. (2021). Equatorial Ionization Anomaly crest magnitude and its implications on the nocturnal equatorial ionospheric plasma irregularity characteristics. Advances in Space Research., 10.1016/j.asr.2021.07.019.