Active team lead, plan and execute field investigations in the Indian Himalayas.
Co-planned and executed field investigations as a part of the IIT Bombay team in the Antarctica Scientific Expedition from India
Carried out, a) GPR and GNSS survey on glaciers and, b) GNSS survey and field measurements on snow parameters (depth, density, and reflectance measurements)
Snow: Sissu and Dhundi regions, Himachal pradesh
Glaciers: Gepang Gath and Panchinala-A
Antarctica: Maitri station
Carried out UAV survey (flight planning to data processing) and extraction of maps (ortho images, digital elevation models) for below locations.
Snow: Manali and Sissu regions, Himachal Pradesh
Glacier: Panchinala-A, Hamtah
Antarctica: Maitri station
Part of 3-member team under the umbrella of National Centre for Polar and Ocean Research (NCPOR), 43rd Indian Scientific Expedition to Antarctica (43-ISEA).
Research Base: Maitri station
Period of stay: Summer (November 2023-February 2024)
Research on UAV-based Geodetic Mass Balance and frontal dynamics of Ice Sheet near Maitri station
Ramsankaran, RAAJ., Navinkumar, P.J., Dashora, A. and Kulkarni, A.V., 2021. UAV-based survey of glaciers in Himalayas: Challenges and recommendations. Journal of the Indian Society of Remote Sensing, 49(5), pp.1171-1187. DOI: 10.1007/s12524-020-01300-7
Vishwakarma, B.D., Ramsankaran, RAAJ., Azam, M., Bolch, T., Mandal, A., Srivastava, S., Kumar, P., Sahu, R., Navinkumar, P.J., Tanniru, S.R. and Javed, A., 2022. Challenges in understanding the variability of the cryosphere in the Himalaya and its impact on the regional water resources. Frontiers in Water, 102. DOI:10.3389/frwa.2022.909246
Siddhi Garg, Navinkumar Perumal Jayaraman, Ajay Godara, Rakesh Sahu, Dhiraj Kumar Singh, RAAJ Ramsankaran (2023). Remote sensing the evolution of debris-covered Panchi Nala-A glacier, India (1971-2021) from satellites and Unmanned Aerial Vehicles. Regional Environmental Change, 23, 103. DOI:10.1007/s10113-023-02096-1
Navinkumar Perumal Jayaraman, RAAJ Ramsankaran, AutoICE: An Automated Tool for Estimating Ice Thickness and Volume of Glaciers in Mountain Regions. Environmental Modelling and Software (manuscript submitted)
Preprint available at SSRN: https://ssrn.com/abstract=5623519 or http://dx.doi.org/10.2139/ssrn.5623519
Navinkumar Perumal Jayaraman and RAAJ Ramsankaran (2023). Early 21st century glacier ice volume changes in the Teesta basin, Eastern Himalayas. XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG), 11-21 July, 2023, Berlin, Germany. DOI: doi.org/10.57757/IUGG23-3305
Navinkumar Perumal Jayaraman, Ajay Godara, Sayantan Mandal and RAAJ Ramsankaran (2024). UAV based Annual Geodetic Mass Balance Estimation- A Pilot Study in Panchinala-A Glacier, Western Himalayas, India. Asia Oceania Geoscience Society, 23-28 June, 2024, Pyeongchang, Gangwon-do, South Korea.
Upcoming Conference(s):
Navinkumar Perumal Jayaraman, RAAJ Ramsankaran (2025), AutoICE: A Stand-Alone Automated Tool for Glacier Ice-Thickness, Bed Topography, and Volume Estimation, organised by FOSS4G-ASIA 2026, 22 - 25 January 2026, Nashik, Maharashtra, India