| Issue |
BIO Web Conf.
Volume 131, 2024
6th International Conference on Tropical Resources and Sustainable Sciences (CTReSS 6.0)
|
|
|---|---|---|
| Article Number | 05018 | |
| Number of page(s) | 7 | |
| Section | Environmental Sustainability, Analytics and Technology | |
| DOI | https://doi.org/10.1051/bioconf/202413105018 | |
| Published online | 15 October 2024 | |
Rainfall trend analysis using the Mann-Kendall test with pyMannKendall: A case study of Jeli, Kelantan
1 Faculty of Earth Science, Universiti Malaysia Kelantan, Jeli Campus, 17600, Jeli, Kelantan, Malaysia
2 Centre for Foundation Studies, Universiti Malaysia Kelantan, Jeli Campus, 17600, Jeli, Kelantan, Malaysia
3 Tropical Climate Resilience Research Group, Universiti Malaysia Kelantan
4 Faculty of Agro Based Industry, Universiti Malaysia Kelantan, Jeli Campus, 17600, Jeli, Kelantan, Malaysia
* Corresponding author: akmal.mz@umk.edu.my
Trend analysis was widely used as a tool to detect changes in climatic and hydrological time series data such as rainfall. Therefore, this study aims to analyse the rainfall trends in Jeli, Kelantan from 2009 to 2020 Simple linear regression was used to impute missing data in all rainfall stations. The rainfall trends in time series were tested using the Mann- Kendall test and Sens’ slope methods. This analysis was analysed using Python with pyMannKendall package. Kg. Jeli exhibited a statistically significant decreasing trend in rainfall, with a Kendall’s Tau of -0.1412 and a Sen’s slope of -0.0272 (p-value = 0.0121). However, no statistically significant rainfall trends were observed in the other three rainfall stations: Ldg. Kuala Balah, Kg. Gemang Bahru, and Kg. Ayer Lanas during the study period. Generally, this study concludes that the flood event was caused by high rainfall intensity.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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