Title: Impact of climate change on extreme precipitation events over Sumatera Island and the Malay Peninsula
Authors: Amalia Nurlatifah; Rahaden Bagas Hatmaja; Fildzah Adany; Aulia Darojatun
Addresses: Research Center for Climate and Atmosphere, National Research and Innovation Agency of Indonesia, Bandung, 40173, West Java, Indonesia ' Research Center for Climate and Atmosphere, National Research and Innovation Agency of Indonesia, Bandung, 40173, West Java, Indonesia ' Research Center for Chemistry, National Research and Innovation Agency of Indonesia, South Tangerang, 15314, Banten, Indonesia ' Research Center of Smart Mechatronics, National Research and Innovation Agency of Indonesia, Bandung, 40135, West Java, Indonesia
Abstract: Increasing the frequency and intensity of extreme climate events due to climate change is something that must be mitigated. This study aims to describe the impact of climate change on extreme rainfall in the island of Sumatra and the Malay Peninsula. The method used in this research is dynamical downscaling of Coupled Model Intercomparison Project Phase 5 (CMIP5) with conformal cubic atmospheric model (CCAM) and climate change data projection using recent concentration pathway (RCP) 4.5 scenario. The Malay Peninsula is predicted to experience shorter consecutive dry days (CDD) in 2021-2050 when compared to 1991-2020. The southern part of Sumatra is predicted to experience longer CDD in 2021-2050. The West Coast of Sumatra and the inland Malay Peninsula are predicted to experience less heavy rain days (R20mm) in 2021-2050. The West Coast of Sumatera has maximum amount of rainfall in 1 day (RX1day) exceeding 100 mm in 2021-2050.
Keywords: climate change; extreme rainfall; consecutive dry days; CDD; R20mm; RX1day.
International Journal of Global Warming, 2024 Vol.32 No.4, pp.374 - 398
Received: 04 Mar 2023
Accepted: 01 Jun 2023
Published online: 04 Mar 2024 *