Sunil Gurrapu

Academic Qualifications

Degree	Subject	University	Year
PhD	Assessment of the Influence of Nonstationary Climate on Extreme Hydrology of Southwestern Canada	University of Regina, Canada	2020
M.Tech	Hydraulics and Water Resources Engineering	National Institute of Technology Karnataka, Surathkal	2005
B.E.	Civil Engineering	Maulana Azad National Institute of Technology, Bhopal	2002

Experience

• 06/01/2023 - Present | Scientist D (National Institute of Hydrology, Roorkee)
• 17/09/2018 - 05/01/2023 | Scientist C (National Institute of Hydrology, Roorkee)
• 17/07/2017 - 31/05/2018 | Adhoc Faculty (National Institute of Technology, Tadepalligudem)
• 01/05/2012 - 31/03/2014 | Agro-Climate Analyst (Agriculture Agri-Food Canada)
• 01/12/2006 - 31/03/2007 | Research Scholar (Engineering Staff College of India, Hyderabad)
• 01/06/2006 - 30/11/2006 | Lecturer (SECAB Institute of Engineering and Technology, Karnataka)
• 01/10/2005 - 31/05/2006 | Project Associate (Indian Institute of Technology Kanpur)

Administrative Roles

• OIC Computer Center (NIH Roorkee)
  01 December 2022 - Present
• OIC Meteorological Observatory Centre (NIH Roorkee)
  27 February 2019 - 26 October 2022
• Coordinator, Department of Civil Engineering (NIT Tadepalligudem)
  01 January 2018 - 31 May 2018

Research Interest

• Teleconnections and Hydrological Extremes
• Climate Change Impact Assessment
• Hydrological Modelling

Publications

International Journal

1. Projected 21st century increased water stress in the Athabasca River Basin: the center of Canada’s oil sands industry
   Brault M-O, St. Jacques J-M, Andreichuk Y, Gurrapu S, Pace A V, Sauchyn D
   Climate (2025 )
2. Long-term rainfall variability of Indian River basins in context of global warming and climatic Indices
   Ranade A, Gurrapu S
   Journal of Water and Climate Change (2024 )
3. Influence of large-scale teleconnections on annual and seasonal floods in Godavari and Narmada River basins
   Gurrapu S, Ranade A, Patra J P
   Journal of Water and Climate Change (2023 )
4. Assessment of the hydrological drought risk in Calgary, Canada using weekly river flows of the past millennium
   Gurrapu S, Sauchyn D, Hodder K
   Journal of Water and Climate Change (2022 )
5. Assessment of the ability of the standardized precipitation evapotranspiration index (SPEI) to model historical streamflow in watersheds of Western Canada
   Gurrapu S, Hodder K, Sauchyn D J, St. Jacques J-M
   Canadian Water Resources Journal (2021 )
6. A Review of Case Studies on Climate Change Impact on Hydrologic Cycle: An Indian Perspective
   Bhunya P K, Kumar S, Gurrapu S, Bhuyan M K
   International Journal of Scientific Research in Science, Engineering and Technology (2020 )
7. The Influence of the Pacific Decadal Oscillation on Annual Floods in the Rivers of Western Canada
   Gurrapu S, St. Jacques J-M, Sauchyn d J, Hodder K
   Journal of American Water Resources Association (2016 )

Book Chapter

1. Estimation of Groundwater Levels using Machine Learning Techniques
   Gurrapu S
   Srivastav R K, Nayak P C (eds.) Applications of Machine Learning in Hydroclimatology (2025 )
2. Extreme Rainfall Trends and their Statistical Significance
   Kumar S, Thakural L N, Gurrapu S, Patra J P
   Climate Change and Environmental Impacts: Past, Present and Future Perspective (2023 )
3. Extreme rainfall analysis using Extreme Value (EV-I) Distribution based on L-moment approach
   Kumar S, Thakural L N, Patra J P, Gurrapu S
   Smart Technologies for Energy, Environment and Sustainable Development (2022 )
4. Chapter 13: Uncertainty in Climate Change Studies
   Chapter 13: Uncertainty in Climate Change Studies
   Climate Change and its Impacts on Water Resources with Focus on India (2019 )
5. Chapter 4: Climate Change and Precipitation
   Arora M, Gurrapu S
   Climate Change and its Impacts on Water Resources with Focus on India (2019 )

Technical Report

1. Evaluation of the Influence of Low-Frequency Atmosphere-Ocean Oscillations on Annual Floods in Godavari and Narmada River Basins
   Gurrapu S, Ranade A, Patra J P
   National Institute of Hydrology (2022 )
2. Assessment of Climate Change Impact on Water Availability and Agriculture in Part of Banas Basin
   Sarkar A, Gurrapu S, Singh S, Gurjar S
   National Institute of Hydrology (2022 )
3. Training Manual for training on “Climate Change and Hydrological Impact Assessment" (CCHIA)
   Gurrapu S
   National Institute of Hydrology (2022 )

International Conference

1. The Effects of Pacific Decadal Oscillation and El Niño-Southern Oscillation on Annual Floods in Godavari River Basin, India
   Gurrapu S, Ranade A, Patra J
   AGU Fall Meeting 2022 (2022 )
2. The effects of the Atlantic Multidecadal Oscillation, Pacific Decadal Oscillation, North Atlantic Oscillation, and the El Niño-Southern Oscillation on discharge variability in the Canadian Maritimes
   Noel D, St. Jacques J M, Gurrapu S
   AGU Fall Meeting 2022 (2022 )
3. Trends in annual maximum flow series and their relationship with El Niño-Southern Oscillation
   Kumar S, Gurrapu S, Thakural L N, Patra J P
   Roorkee Water Conclave 2022 (2022 )
4. Regionalization of Flow Duration Curves
   Kumar S, Patra J P, Thakural L N, Gurrapu S
   Roorkee Water Conclave 2022 (2022 )
5. Assessing the influence of the Pacific Decadal Oscillation and the Atlantic Multidecadal Oscillation on discharge variability in western North America
   Noel D, St. Jacques J M, Gurrapu S
   AGU Fall Meeting 2021 (2021 )
6. Assessment of Historic versus Prehistoric hydrological drought characteristics
   Gurrapu S, Sauchyn D J, Hodder K R
   Roorkee Water Conclave 2020 (2020 )
7. Challenges and Recent developments in flood forecasting in India
   Kumar S, Jain S K, Gurrapu S
   Roorkee Water Conclave 2020 (2020 )
8. Comparison of the SPI and SPEI on predicting drought conditions and streamflow in the Canadian prairies
   Gurrapu S, Chipanshi A, Sauchyn D, Howard A
   Proceedings of the 28th Conference on Hydrology, American Meteorological Society (2014 )
9. Multi-decadal variability of flood risk in southwestern Canadian Prairie Rivers as characterised by the PDO and ENSO
   Gurrapu S, St. Jacques J M, Sauchyn D J, Hodder K
   AGU Fall Meetnig 2014 (2014 )

Projects

Internal Studies 11

Consultancy Projects 1

Conference & Training

Seminar / Conference / Symposia

Training / Workshop / Brainstorming

Achievements

Professional Memberships

• Indian Association of Hydrologists (Membership No: 1898 )
• Indian Water Resources Association (Membership No: LM-21-7905 )

Student Guidance

Miscellaneous