Dataset Information

Propagation of tropical squall line-induced storm coastal inundation episodes in Java-Bali, Indonesia.

ABSTRACT: The short-lived tropical squall lines could trigger weather-related hazards to the northern part of the Indonesia Maritime Continent (IMC), such as Sumatra and Kalimantan. Herein, we investigated the rare propagation event of the long-lived Sumatra squall line associated with a severe storm surge that induced coastal inundation in Java-Bali with devastating impacts from 22 May-2 June 2020. With a comprehensive approach combining observational, numerical, and analytical studies, for the first time, we proposed the possible mechanism related to the long-lived squall line over the IMC, which represents the largest equatorial tropical region with the most complicated air-sea interaction area in the world. Our findings suggest that the long-lived squall line related to the supercell-like thunderstorm initiated from multicell over central Sumatra on May 20, 2020, continuously propagated southeastward until several days later reached Bali. The near-quasi steady convective line has 6 hours of time travel from central Sumatra to west Java. The supercell-like rapidly develops from multicell with a deep convective updraft under the strong and fast cold pool (∼13.8 m s^-1). The further southeastward propagation of squall line with broken line type seems reinforced by low-level moist transport from the Java Sea. This study also suggested that this unusual event of a long-lived squall line might occur more frequently in the warming upper ocean in the IMC.

SUBMITTER: Yulihastin E

PROVIDER: S-EPMC10559172 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature

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Propagation of tropical squall line-induced storm coastal inundation episodes in Java-Bali, Indonesia.

Yulihastin Erma E Fathrio Ibnu I Sulaiman Albertus A Hatmaja Rahaden Bagas RB Suaydhi Satyawardhana Haries H Nauval Fadli F Nugroho Dwiyoga D Djamaluddin Thomas T Pranowo Widodo Setiyo WS Bramawanto Rikha R Basit Abdul A Mujiasih Subekti S Ismail Mochamad Furqon Azis MFA Lestari Sopia S Ratnawati Herlina Ika HI Nugroho Jalu Tejo JT Nuryanto Danang Eko DE

Heliyon 20230902 9

The short-lived tropical squall lines could trigger weather-related hazards to the northern part of the Indonesia Maritime Continent (IMC), such as Sumatra and Kalimantan. Herein, we investigated the rare propagation event of the long-lived Sumatra squall line associated with a severe storm surge that induced coastal inundation in Java-Bali with devastating impacts from 22 May-2 June 2020. With a comprehensive approach combining observational, numerical, and analytical studies, for the first tim ...[more]

PMID: 37809739

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Dataset Information

Propagation of tropical squall line-induced storm coastal inundation episodes in Java-Bali, Indonesia.

Publications

Propagation of tropical squall line-induced storm coastal inundation episodes in Java-Bali, Indonesia.

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