Variability of Temperature Extreme Observes in Kalimantan

Iskandar, Iskhaq and Akhsan, Hamdi (2024) Variability of Temperature Extreme Observes in Kalimantan. Jurnal Penelitian Pendidikan IPA (JPPIPA), 10 (11). pp. 8734-8744. ISSN P-ISSN : 24602582 E-ISSN : 2407795X

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Abstract

This study aims to analyze the trend of extreme temperatures in Kalimantan over the past few decades. The data used are daily temperatures from meteorological stations in West Kalimantan, Central Kalimantan, and South Kalimantan, with an observation period of January 1985 to December 2022. The research methodology involves four main stages: data collection, extreme temperature index calculation, trend detection, and correlation analysis with ENSO and IOD. The results showed an increasing trend in extreme temperatures (warming). The increase in mean annual maximum temperature (TXmean) ranged from 0.03°C to 2°C per century, while the mean annual minimum temperature increased from 0.2°C to 0.5°C per century. Monthly maximum value of daily max temperature (TXx) the increasing trend ranged from 0.19°C to 1.7°C, monthly maximum value of daily min temperature (TNx) increased from 0.1°C to 0.5°C. The monthly mean difference between daily max and min temperature (DTR) also shows an increase of 0.5°C to 1.7°C. This trend indicates that daytime (TXmean, TXx) and nighttime (TNmean, TNx) conditions in Kalimantan, especially in West, Central, and South Kalimantan, are getting hotter, with the daytime experiencing a more significant increase in temperature. The correlation between the extreme temperature index and ENSO and IOD is negative and positive, indicating that ENSO and IOD do not fully influence the increase in extreme temperatures. These findings have important implications for disaster mitigation planning and adaptation to climate change in the Kalimantan region.

Item Type: Article
Subjects: Q Science > QC Physics > QC1-999 Physics
Q Science > QC Physics > QC980-999 Climatology and weather
#3 Repository of Lecturer Academic Credit Systems (TPAK) > Articles Access for TPAK (Not Open Sources)
Divisions: 06-Faculty of Education and Educational Science > 84203-Physics Education (S1)
Depositing User: Hamdi Akhsan
Date Deposited: 17 May 2025 00:20
Last Modified: 17 May 2025 00:20
URI: http://repository.unsri.ac.id/id/eprint/171401

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