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All Journal Pillar of Physics: Jurnal Berkala Ilmiah Fisika Jurnal Masyarakat Madani Indonesia
Cahya, Shintia Dwi
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Humanities Computer Science & IT Earth & Planetary Sciences Education Materials Science & Nanotechnology Physics Public Health Social Sciences

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Identification of Mesoscale Convective System Phenomena in Relation to Heavy Rain in Semarang (Case Study of the Squall Line on March 13, 2024) Cahya, Shintia Dwi; Halawa, Reinal Taruna Wahyu; Alghazali, Muhammad Fathurrachman; Saifulloh, Naufaldi; Kristianto, Aries
PILLAR OF PHYSICS Vol 18, No 1 (2025)
Publisher : Department of Physics – Universitas Negeri Padang UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/17058171074

Abstract

Indonesia, located in the equatorial region, experiences complex rainfall variability influenced by various climatic and geographic factors. Mesoscale Convective Systems (MCS), including squall lines, are a significant contributor to extreme weather phenomena such as heavy rainfall and strong winds. This study investigates the mesoscale convective system (MCS) phenomenon, focusing on its formation, atmospheric dynamics, and associated rainfall distribution. This research investigates the squall line phenomenon, specifically focusing on a squall line event in Semarang, Indonesia, on March 13, 2024. Utilizing data from Himawari-8 satellite imagery, ERA5 reanalysis, and GSMaP rainfall observations, the research identifies the development, atmospheric dynamics, and rainfall intensity of the squall line. Satellite imagery analysis revealed the squall line's linear pattern with cloud top temperatures below -60°C, forming during intense convective activity. Atmospheric instability indices, including CAPE and LI, indicated favorable conditions for squall line development, based on a Skew-T Log-P diagram, shows CAPE values reaching 427 J/kg, minimal CIN, and increasing wind shear with altitude. Rainfall distribution analysis identified localized extreme precipitation exceeding 120 mm within the study period, which aligns with the squall line's trajectory. The findings highlight the significant role of squall lines in triggering heavy rainfall and hydrometeorological disasters in Indonesia, emphasizing the need for accurate monitoring and early warning systems.The findings highlight the critical role of mesoscale dynamics in triggering squall lines and their potential to induce hydrometeorological disasters. This study underscores the need for improved monitoring and forecasting of MCS events to mitigate their impacts on vulnerable regions like Semarang.
Strategi Mitigasi Non-Struktural Bencana Hidrometeorologi Berbasis Edukasi dan Teknologi Informasi bagi Masyarakat Pesisir Sanur Maheswara, I Dewa Gede Loka; Putri, Intan Bryliana; Gotama, I Made Prabawa Sandhi; Pratama, Putu Aldi Tusan; Syah, Muhammad Jouhar; Taruna, I Wayan Jyesta Jaya; Cahya, Shintia Dwi; S. A, John Pieter; Zaman, Azra Haiza; Temuju, Gede Galang; Buti, Delfiana Yoventa; Sanjaya, Kadek Valerina Kitana; Mulsandi, Adi; Mustamu, Abraham Frederik; Gunawan, Dodo
Jurnal Masyarakat Madani Indonesia Vol. 5 No. 2 (2026): Mei
Publisher : Alesha Media Digital

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59025/4ekjje90

Abstract

Kegiatan pengabdian kepada masyarakat merupakan salah satu sarana penerapan ilmu pengetahuan secara langsung untuk memberikan manfaat nyata bagi masyarakat. Dalam rangka Kuliah Kerja Nyata (KKN) STMKG Unit 13, dilaksanakan tiga kegiatan pengabdian di kawasan Pantai Kelurahan Sanur sebagai respons terhadap tingginya kerentanan wilayah pesisir Denpasar Selatan di Provinsi Bali terhadap bencana hidrometeorologi. Kegiatan yang dilaksanakan meliputi sosialisasi hidrometeorologi, pelatihan penggunaan aplikasi SICUPEL, serta pemasangan plang informasi prakiraan cuaca maritim dan tinggi gelombang di wilayah Pantai Semawang. Metode yang diterapkan mengutamakan diskusi interaktif dua arah antara tim penyuluh dan nelayan, yang memungkinkan konfirmasi silang antara informasi prakiraan resmi BMKG dengan pengetahuan empiris nelayan di lapangan. Pendekatan ini terbukti efektif dalam membangun penerimaan peserta terhadap materi yang disampaikan, sekaligus memvalidasi fenomena hidrometeorologi lokal seperti angin kencang dari awan cumulonimbus yang selama ini hanya dipahami secara empiris oleh nelayan. Ketiga kegiatan yang dirancang berkontribusi dalam memperkuat literasi kebencanaan dan kesiapsiagaan masyarakat nelayan pesisir pantai Kelurahan Sanur terhadap potensi bencana hidrometeorologi.
Co-Authors Adi Mulsandi Alghazali, Muhammad Fathurrachman Aries Kristianto Buti, Delfiana Yoventa Dodo Gunawan Gotama, I Made Prabawa Sandhi Halawa, Reinal Taruna Wahyu Maheswara, I Dewa Gede Loka Mustamu, Abraham Frederik Pratama, Putu Aldi Tusan Putri, Intan Bryliana S. A, John Pieter Saifulloh, Naufaldi Sanjaya, Kadek Valerina Kitana Syah, Muhammad Jouhar Taruna, I Wayan Jyesta Jaya Temuju, Gede Galang Zaman, Azra Haiza