Dr. Rahul Mahanta

Dr. Rahul Mahanta

Associate Professor

Ph.D. : Gauhati University

Research Interests:

Climate science relevant to climate forecast and application; Regional climate downscaling and prediction; Understanding and prediction of water cycle by observation and modelling; Paleoclimate and climate change
Date of Joining : Jul 20, 1995

Phone: 9854076819
Email: rahul.mahanta@cottonuniversity.ac.in

Vidwan Profile



B. Sc. Physics,  Cotton College, Gauhati University, 1991

M. Sc. Physics (CMP)  Gauhati University, 1994

Ph.D. Atmospheric Physics, Gauhati University, 2013


Present Position:

Associate Professor in Physics, Cotton University, Assam

Additional Position:

Director, Interdisciplinary Climate Research Center, Cotton University.

Research paper publications till 2021

Journal Publications:

  1. Multiscale interaction with topography and extreme rainfall events in the northeast Indian region; June 2010; Journal of Geophysical Research Atmospheres 115(D12); DOI: 10.1029/2009JD012275

  2. Heavy rainfall occurrences in northeast India; May 2013, International Journal of Climatology, DOI: 10.1002/joc.3526

  3. Climatology of Local Severe Convective Storms (LSCS) in Assam, India; July 2019; International Journal of Climatology 40(1)DOI: 10.1002/joc.6250

  4. Impact of climate change on North-East India (NEI) summer monsoon rainfall, April  2021; Climatic Change, 10.1007/s10584-021-02994-5.

  5. Direct Validation of TRMM/PR Near Surface Rain over the Northeastern Indian Subcontinent Using a Tipping Bucket Raingauge Network; September 2017, Scientific online letters on the atmosphere: SOLA 13:157-162

  6. Even and odd nonautonomous NLSE hierarchy and reversible transformations; Optik; Volume 247, December 2021, 167928

  7. Reconstruction of a Long Reliable Daily Rainfall dataset for the Northeast India (NEI) for Extreme rainfall studies. Journal of J Earth Science & Climatic Change, Volume 12  Issue 9, 1000580

  8. Large scale and regional convection patterns accompanying extreme rainfall events over Northeast India; Research Journal of Contemporary Concerns, ISSN: 0972-7922

  9. Norwesters and Convective Instability over Northeast India; Research Journal of Contemporary Concerns, ISSN: 0972-7922


 Presentation in Symposium: 

  1. Session Chair at International Conference on Climate Change Mitigation and Technologies for Adaptation (IC3MTA 2016), Organised by: University of Technology and Management, Shillong

  2. Spatio-Temporal distribution and Hazard Characteristics of Severe Local Convective Storms(SLCS) in Assam, India

  3. TROPMET-2020: National Virtual Symposium on Weather and Climate Services over Mountainous Regions, 14th - 17th December 2020. Organised by North East Space Application Center (NESAC), Meghalaya and India Meteorological Society(IMS), Delhi.

  4. Persistent Rainfall Events and Local Severe Convection over Northeast India. Brainstorming on “Study of Ocean-Land-Atmosphere Coupling and Extreme events (SOLACE). Jointly organised by Cotton College State University and Department of Science and Technology, Government of India, Cotton College State University, Assam


Invited lectures:

  1. “Rainfall variability and extremes in northeast India” International workshop for climate variability and related studies over North East Indian subcontinentInstitute for Space-Earth Environmental Research, Nagoya University 21-22 February 2007

  1.  “Intense Rainfall over Northeast India” Tokyo Polytechnic University Wind Engineering - Joint Usage Research Center (WE-JURC) Open Seminar: Current research on atmospheric phenomena and climate associated with disasters in South Asia20 February 2017

  2. “Multiscale interaction and intense rainfall events over Northeast India” Indo-Japan Joint Workshop: Cooperating Atmospheric scientists, Geographers and Social scientists for disaster and Human Activities in South Asia Disaster Prevention Research Institute, DPRI, Kyoto University and Dept. Of Geography,  North Eastern Hill University Shillong, India, March 2, 2015,

  3. “Climatology of Local Severe Convective Storms (LSCS) in Assam, India”: International Workshop/ Brainstorming Session on “Extreme Severe Storms and Disaster Mitigation Strategy”,  Department of Atmospheric Science, Central University of Rajasthan, 24-26 Dec 2018 

  4. Severe Thunderstorms and Intense Rainfall Events over Northeast India Department of Civil Engineering, IIT Guwahati, India, 18 June 2013




Book publication relating subject/research concerned

Present Tense and Future Expensive’, published by Cotton University. Catalogued at Ministry of Earth Sciences (link): MoES Library catalog › Details for: Present tense, future expensive

Research Scholars

Sl.No Name Research Topic Roll No
1 Arundhati Kundu Atmospheric Physics
2 Krishna Nath Atmospheric Physics
3 Simanta Das (DST Inspire Fellow) Atmospheric Physics

Other Informations



23rd Silver Jublee award for the year 2010 for the best research contribution in the form of publications in standard research journal by the institute's scientists " Multiscale interaction with topography and extreme rainfall events in the northeast Indian region; Journal of Geophysical Research Atmospheres 115 (D12) June 2010;  

Databases created:

1. Daily Rainfall Database: 1920-2019, First of its kind, we created a database of 24(will increase to 32) stations scattered uniformly over          Northeast  India for a period of 100 years.

2. Severe Convective storms (Thunderstorm, Lightning, Hail, Extreme rainfall events) 1930-2016, With funding from Tokoha University Japan, we developed a severe thunderstorm database for Assam, for the period 1930-2016 

Workshop/Seminars Organised:

  1. 1st International Conference on Climate Science.(in collaboration with CSEAS, Kyoto university and ICEDS, Kagawa University, Japan)Conference Theme: Frontiers of Climate Research to Enhance Cooperation of Climate Information and Services for Sustainable Development Planning in North East India, 7-8 March 2016; Venue: Sudmerson Hall, Cotton University

  2. Workshop on Hydro-Meteorological Modelling for Flood Prediction in Northeast India 7th March 2018; Venue: Conference Hall, Cotton University

  3. Interdisciplinary Climate Research Center(ICRC) –CSIR National institute for Science Technology and Development Studies (NISTADS) Northeast India Energy Conclave 2018; 6th and 7th June 2018; Venue: Sudmersan Hall Cotton University

  4. Day long workshop on “National Information System for Climate and Environmental Studies and its applications”, in collaboration with the National Remote Sensing Centre (NRSC), ISRO and the North Eastern Space Application Centre (NESAC); 29th January 2018, Venue: Sudmerson Hall, Cotton University

  5. Inter-Institutional Symposium on Meteorological Research for Improved Water Resources Management 3rd march 2019; Venue: Conference Hall, Physics, Cotton University


Observational Facilities initiated and maintaining:

  1. In collaboration with a consortium of 5 Japan Universities ICRC is managing 16 ground observation nodes for high resolution rainfall measurement in Assam and 8 stations in Meghalaya and 10 stations in Bangladesh adjoining Meghalaya Plateau, since 2006.

  2. Continuous Ambient Air Quality Monitoring Station (CAAQMS):  Funded by Ministry of Environment Forests and Climate Change (MoEF&CC), Govt. of India

  3. RPG standard single polarization Radiometer: A Scientific collaboration in studies on  “Lightning, Thunderstorm and Related Phenomena,” with IITM Pune, funded by Ministry of earth Sciences, govt. of India

  4. ICRC  Automatic Weather Station : Wireless Vantage Pro2™ Plus Stations: Installed in 2015 to provide reliable meteorological information for the Cotton University and local communities, and to involve undergraduates in high quality scientific research.

  5. Blitzortung Lightning Detection system: In collaboration with Tokyo University. This system is a node for a global lightning detecting system