Oberved trend of precipitation extreme in Kalimantan

PUTRI, JAMIATUL KHAIRUNNISA and Irfannuddin, Irfannuddin and Akhsan, Hamdi and Suhadi, Suhadi and Iskandar, Iskhaq (2024) Oberved trend of precipitation extreme in Kalimantan. Global NEST Journal, 26 (9). pp. 1-10. ISSN 11084006

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Abstract

It has been suggested that the global warming due to an increase in green house gas concentrations could lead to extreme climate events, such as precipitation extreme and droughts. This study is designed to analyze trend in the long-term time series of preciptation extreme in Kalimantan, focusing on observed data obtained from eight meteorological stations spanning from January 1985 to December 2022. Statistical analyses were employed to discern patterns and trends in extreme precipitation events. The findings reveal a discernible long-term trend characterized by fluctuations in precipitation extremes over the study period. The trend of total annual precipitation (PRCPTOT) has increased at all observation stations. Especially at SM. Nangapinoh and Supadio, the PRCPTOT trend increased significantly at the 99% and 90% levels. Meanwhile, the increase in consecutive wet days (CWD) trends only occurred at SM. Nangapinoh and Rahadi Oesman (West Kalimantan), and SM. Iskandar (South Kalimantan). A significant trend was found in SM. Nangapinoh (90%) and Iskandar (95%). In addition to experiencing an increase in the R20mm trend, there was a decrease in the trend. Significant trend increases at the 99% and 90% levels occurred in SM. Nangapinoh and Supadio. In addition, an increase in CDD trend occurred only in SM. Rahadi Oesman and Tjilik Riwut, although not significant. Meanwhile, the majority of extreme precipitation indices have a greater correlation with ENSO than the IOD.

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 00:16
Last Modified:	17 May 2025 00:16
URI:	http://repository.unsri.ac.id/id/eprint/171399

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