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Changes in Extremes Rainfall Events in Present and Future Climate Scenarios over the Teesta River Basin, India

Author

Listed:
  • Pawan Kumar Chaubey

    (DST-Mahamana Centre of Excellence in Climate Change Research, Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi 221005, India)

  • Rajesh Kumar Mall

    (DST-Mahamana Centre of Excellence in Climate Change Research, Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi 221005, India)

  • Prashant K. Srivastava

    (DST-Mahamana Centre of Excellence in Climate Change Research, Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi 221005, India)

Abstract

Globally, changes in hydroclimate extremes such as extreme precipitation events influence water resources, natural environments, and human health and safety. During recent decades, India has observed an enormous increase in rainfall extremes during the summer monsoon (June to September) seasons. However, future extreme rainfall events have significant uncertainty at the regional scale. Consequently, a comprehensive study is needed to evaluate the extreme rainfall events at a regional river basin level in order to understand the geomorphological characteristics and pattern of rainfall events. In the above purview, the current research focuses on changes in extreme rainfall events obtained through observed gridded datasets and future scenarios of climate models derived through the Coupled Model Intercomparison Project (CMIP). The results highlight a significant rise in the extremes of precipitation events during the first half of the 21st century. In addition, our study concludes that accumulated precipitation will increase by five days in the future, while the precipitation maxima will increase from 200 to 300 mm/day at the 2-year, 50-year, and 100-year return periods. Finally, it is found that during the middle of the 21st century the 23.37% number of events will increase over the TRB at the 90th percentile.

Suggested Citation

  • Pawan Kumar Chaubey & Rajesh Kumar Mall & Prashant K. Srivastava, 2023. "Changes in Extremes Rainfall Events in Present and Future Climate Scenarios over the Teesta River Basin, India," Sustainability, MDPI, vol. 15(5), pages 1-19, March.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:5:p:4668-:d:1089024
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    References listed on IDEAS

    as
    1. Pawan K. Chaubey & Prashant K. Srivastava & Akhilesh Gupta & R. K. Mall, 2021. "Integrated assessment of extreme events and hydrological responses of Indo-Nepal Gandak River Basin," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 23(6), pages 8643-8668, June.
    2. Akshay Omprakash Jain & Tejaskumar Prakashchandra Thaker & Anil Kumar Misra & Anupam Kumar Singh & Priyanka Kumari, 2021. "Determination of sensitivity of drainage morphometry towards hydrological response interactions for various datasets," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 23(2), pages 1799-1822, February.
    3. Kamal Ahmed & Zafar Iqbal & Najeebullah Khan & Balach Rasheed & Nadeem Nawaz & Irfan Malik & Mohammad Noor, 2020. "Quantitative assessment of precipitation changes under CMIP5 RCP scenarios over the northern sub-Himalayan region of Pakistan," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 22(8), pages 7831-7845, December.
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