Dynamics of rainfall and temperature in North Sumatra Province: Comprehensive analysis of temporal trends

Lubis, Riri Syafitri ORCID: https://orcid.org/0000-0002-8278-7091, Suzana, Yenny ORCID: https://orcid.org/0000-0002-2728-0036, Syarah, Fatmah ORCID: https://orcid.org/0009-0008-7292-2836, Fajriana, Fajriana ORCID: https://orcid.org/0000-0003-2517-5678, Rozi, Fachrur ORCID: https://orcid.org/0000-0002-6380-0297 and Nusantara, Badai Charamsar ORCID: https://orcid.org/0009-0009-7616-0514 (2025) Dynamics of rainfall and temperature in North Sumatra Province: Comprehensive analysis of temporal trends. BAREKENG: Journal of Mathematics and Its Applications, 19 (1). pp. 215-226. ISSN 1978-7227

Text (2025) - Lubis dkk - Dynamics of Rainfall and Temperature in North Sumatera Province .pdf Download (531kB)

Abstract

This research aims to analyze the temporal trends of rainfall and temperature in North Sumatra Province, focusing on the Medan and Deli Serdang regions. The data used in this study was obtained from the Central Statistics Agency of North Sumatra (BPS Sumut) and spans the period from January 2000 to December 2022. The Mann-Kendall test was applied to identify trends, Sen's Slope Estimator measured the trend slope, and Pearson correlation analysis assessed the relationship between rainfall and temperature. Key findings indicate that Medan has a higher monthly rainfall average than Deli Serdang, with both regions showing a significant increasing trend in rainfall, although the rise is gradual. Additionally, a positive trend in temperature was identified, reflecting broader climate change patterns. However, the correlation between rainfall and temperature was weak, indicating minimal direct interaction between these variables in the study areas. These results contribute valuable insights into climate dynamics and are critical for the development of climate change adaptation strategies in North Sumatra Province.

Item Type:	Journal Article
Keywords:	Trend Analysis; Rainfall; Temperature; North Sumatra.
Subjects:	01 MATHEMATICAL SCIENCES > 0104 Statistics > 010401 Applied Statistics
Divisions:	Faculty of Mathematics and Sciences > Department of Mathematics
Depositing User:	Fachrur Rozi
Date Deposited:	05 Dec 2025 08:41

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