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Analyzing trend and forecast of rainfall and temperature in Valmiki Tiger Reserve, India, using non-parametric test and random forest machine learning algorithm

  • Research Article - Atmospheric & Space Sciences
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Abstract

Assessment of spatiotemporal dynamics of meteorological variables and their forecast is essential in the context of climate change. Such analysis can help suggest possible solutions for flora and fauna in protected areas and adaptation strategies to make forests and communities more resilient. The present study attempts to analyze climate variability, trend and forecast of temperature and rainfall in the Valmiki Tiger Reserve, India. We utilized rainfall and temperature gridded data obtained from the Indian Meteorological Department during 1981–2020. The Mann–Kendall test and Sen’s slope estimator were employed to examine the time series trend and magnitude of change at the annual, monthly and seasonal levels. Random forest machine learning algorithm was used to estimate seasonal prediction and forecasting of rainfall and temperature trend for the next ten years (2021–2030). The predictive capacity of the model was evaluated by statistical performance assessors of coefficient of correlation, mean absolute error, mean absolute percentage error and root mean squared error. The findings revealed a significant decreasing trend in rainfall and an increasing trend in temperature. However, a declining trend for maximum temperature has been observed for winter and post-monsoon seasons. The results of seasonal forecasting exhibited a considerable decrease in rainfall and temperature across the Reserve during all the seasons. However, the temperature will increase during the summer season. The random forest machine learning algorithm has shown its effectiveness in forecasting the temperature and rainfall variables. The findings suggest that these approaches may be used at various spatial scales in different geographical locations.

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Data availability

The meteorological data used in this work were obtained from Indian Meteorological Department (available at imdpune.gov.in).

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Acknowledgements

The authors are thankful to anonymous reviewers and the editor for their constructive comments and suggestions which helped us in improving the overall quality of the manuscript.

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The authors declare that no funds, grants, or other support were received during the preparation of this manuscript.

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Contributions

All authors contributed to the study conception and design. R developed the conceptual framework and prepared the original draft. TKS and MHR collected data and performed model simulation. MM, YS and SP conducted the formal analysis. HS supervised and proof read the final draft. All authors read and approved the final manuscript.

Corresponding author

Correspondence to Haroon Sajjad.

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The authors have no relevant financial or non-financial interests to disclose.

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This article does not contain any studies with human participants or animals performed by any of the authors.

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All authors agree to the publication of the study.

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Edited by Prof. Ewa Bednorz (ASSOCIATE EDITOR) / Prof. Theodore Karacostas (CO-EDITOR-IN-CHIEF).

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Supplementary file1 (PDF 1138 kb)

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Roshani, Sajjad, H., Saha, T.K. et al. Analyzing trend and forecast of rainfall and temperature in Valmiki Tiger Reserve, India, using non-parametric test and random forest machine learning algorithm. Acta Geophys. 71, 531–552 (2023). https://doi.org/10.1007/s11600-022-00978-2

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  • DOI: https://doi.org/10.1007/s11600-022-00978-2

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