A Trend Analysis of Climatic Variables in the Karimganj District of Assam, India

Mashud Ahmed; Ariful Hoque; MD Kamrul Islam

doi:10.17485/IJST/v15i10.109

Article

A Trend Analysis of Climatic Variables in the Karimganj District of Assam, India

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Indian Journal of Science and Technology

DOI: 10.17485/IJST/v15i10.109

Year: 2022, Volume: 15, Issue: 10, Pages: 442-450

Original Article

A Trend Analysis of Climatic Variables in the Karimganj District of Assam, India

Mashud Ahmed^1*, Ariful Hoque¹, MD Kamrul Islam¹

¹Research Scholar, Department of Economics, Tripura University, Tripura, India

*Corresponding Author
Email: [email protected]

Received Date:14 January 2022, Accepted Date:05 February 2022, Published Date:11 March 2022

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

Objectives: The main goal of this research is to analyse the trends of climatic variables in the Karimganj district of Assam. The study examines the trend of seasonal and annual temperature maximum, temperature minimum, rainfall and relative humidity for the period 1981-2020. Methods: A non-parametric Mann-Kendall (MK) technique has been employed to establish statistically significant trend in the series. The magnitude of a time series trend has been evaluated by Sen’s slope test. Trend lines and time series graphs are used for better understanding of trends. Findings: It has been found that annual and seasonal temperature maximum (Tmax) have a significant negative trend over the period except post monsoon season. There is no significant trend in the annual temperature minimum (Tmin) series but seasonal mean temperature minimum is showing a significant positive trend at different levels of significance during all four seasons. Except winter season, annual rainfall series and all other seasonal average rainfall series are showing significant positive trends. The seasonal averages and annual relative humidity are showing statistically significant positive trends over the period. Novelty: The study is unique and innovative for Karimganj district of Assam to best of our knowledge. From the analysis, the study claims that climate change is occurring in the district. To combat the impact of climate change, participation of people in adaptations practices and government intervention in the form of mitigation policies are necessary. JEL Classification: Q50, Q54

Keywords: Karimgani; climate change; rainfall; temperature; relative humidity; Assam

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Copyright

© 2022 Ahmed et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Published By Indian Society for Education and Environment (iSee)