An exposition into the changing climate of Bengal Duars through the analysis of more than 100 years’ trend and climatic oscillations

  • Koyel SamEmail author
  • Namita Chakma


Duars is located along the foothills of the Eastern Himalayas with an assemblage of forest cover. It extends from the river Tista in West Bengal to the river Dhunseri in Assam. Within this broad outline, the areal extension between the rivers Tista and Sankosh covering West Bengal is now known as the Bengal Duars or Western Duars and the rest of the portion that lies in the Assam district is named as the Assam Duars or Eastern Duars. In the present study, multi-decadal variability and trends of climatic events (temperature and extreme rainfall) in the Bengal Duars region have been analysed based on long-term dataset (more than 100 years). This region has experienced an increasing trend of temperature. The results show that the average temperature increases by \(0.027{^{\circ }}\hbox {C}~\hbox {year}^{-1}\) and extreme rainfall becomes 5% higher than earlier since 1975.


Himalayan foothills climate change Bengal Duars West Bengal 



The authors would like to acknowledge the University Grants Commission, New Delhi, India, for the financial support as Junior Research Fellowship (Award Letter No. 3108/(NET-JUNE 2014)) to carry out the research work presented in this paper. We would also like to acknowledge IMD, Pune, India, for providing the climatic dataset. We are grateful to the anonymous reviewers for their valuable comments during the preparation of the present work.


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© Indian Academy of Sciences 2019

Authors and Affiliations

  1. 1.Department of GeographyThe University of BurdwanBardhamanIndia

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