Sunil Gurrapu

Scientist 'D' , OIC Computer Center, OIC Vehicle Section

Centre for Cryosphere and Climate Change Studies, National Institute of Hydrology, Roorkee

gurrapus.nihr@gov.in 9182107194

About

Dr. Sunil Gurrapu is a Scientist in the Climate Hydrology Division at National Institute of Hydrology (NIH), Roorkee. He obtained his bachelor’s degree (B.E.) in Civil Engineering from Maulana Azad National Institute of Technology, Bhopal and Master’s degree (M.Tech) in Hydraulics and Water Resources Engineering from National Institute of Technology Karnataka, Surathkal. He obtained his PhD from University of Regina, Canada. His research interests include hydroclimatology, climate change impact assessment, impact of teleconnections on regional hydrology and hydrological extremes, etc. He has published his research work in these areas in reputed international journals and presented his work on various platforms including national and international conferences. He has experience in teaching several engineering subjects including Engineering Hydrology, Fluid Mechanics and Hydraulic Machinery, etc. He has organised several training courses and workshops including Climate Change and Hydrological Impact Assessment, Climate Impact Indicators for Water Security, etc.

Academic Qualifications

DegreeSubjectUniversityYear
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

Administrative Roles

Research Interest

Publications

International Journal

  1. 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 )
  2. 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 )
  3. 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 )
  4. 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 )
  5. 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 )
  6. 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. 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 )
  2. 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 )
  3. 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 )
  4. 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

Evaluation of the Influence of Low-Frequency Atmosphere-Ocean Oscillations on Annual Floods in Godavari and Narmada River Basins
Agency: NIH | Duration: Nov 2018 - Oct 2021 | Role: PI
Climate Change Scenarios for Andhra Pradesh and its Impact on Streamflow and Ground Water Levels in Pennar River Basin
Agency: NIH | Duration: Apr 2022 - Mar 2024 | Role: PI
Assessment of Climate Change Impact on Water Availability and Agriculture in part of Banas Basin, Rajasthan
Agency: NIH | Duration: Nov 2018 - Oct 2021 | Role: Co-PI
Probabilistic dam break flood wave simulation and flood risk assessment for preparation of EAP for Mahi Bajaj Sagar Dam in Rajasthan
Agency: NIH | Duration: Aug 2020 - Jul 2022 | Role: Co-PI
Uncertainty in Rating Curves and Discharge Estimation
Agency: NIH | Duration: Apr 2021 - Mar 2023 | Role: Co-PI
Estimation of Confidence Intervals of Index Flow duration Curves
Agency: NIH | Duration: Apr 2023 - Mar 2025 | Role: Co-PI
Glacier Recurrence Survey, Instrumentation and Modelling to study the Khatling Glacier in part of Western Himalayas
Agency: NIH | Duration: Apr 2023 - Mar 2028 | Role: Co-PI
Monitoring and Modelling of Gangotri (Bhojwasa) watershed under difference climatic scenarios
Agency: NIH | Duration: Apr 2023 - MAr 2026 | Role: Co-PI
Investigation on Occurrences of Extreme Rain Eents across Northwest Himalaya in relaation to global thermal and circulation changes
Agency: NIH | Duration: Apr 2022 - Mar 2025 | Role: Co-PI
Flood Forecasting under Changing Climate Conditions - Role of Machine Learning and Conceptual/Physical based Model
Agency: NIH | Duration: Jul 2022 - Jun 2025 | Role: Co-PI
Enhancement and Application of NIH_Wisdom
Agency: NIH | Duration: Oct 2023 - Sept 2025 | Role: Co-PI

Consultancy Projects 1

Hydrological Studies for Kishau Multi-Purpose Project
Agency: Kishau Corporation Ltd. | Duration: 2022 | Role: Co-PI

Conference & Training

Seminar / Conference / Symposia

Climate Impact Indicators for Water Security
National Duration: 01 March 2022 Location: Virtual (Online)
A seminar on "Application of Climate Change Science in Water Resource Management in Western Canada"
National Duration: 24 February 2020 Location: NIH Roorkee

Training / Workshop / Brainstorming

Hydroclimatic Indices and Extreme Analysis for Climate Change Assessment using Python and R
National Duration: 12 - 17 August 2024 Location: NIH Roorkee
Hydro-Meteorological Data Analysis for Climate Change Studies
National Duration: 20 - 24 November, 2023 Location: NIH Roorkee
Climate Change and Hydrological Impact Assessment
National Duration: 12 - 17 December 2022 Location: NIH Roorkee
Climate Change and Hydrological Impact Assessment
International Duration: 06 - 10 December 2021 Location: Virtual (Online)
Advanced Hydrology and Modelling Tools
National Duration: 16 - 20 August 2021 Location: Virtual (Online)
Climate Change and Hydrological Impact Assessment
International Duration: 25 - 29 January 2021 Location: Virtual (Online)
Climate Change and Hydrological Impact Assessment
National Duration: 02 - 13 December, 2019 Location: NIH Roorkee

Achievements

Professional Memberships

Student Guidance

Miscellaneous