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Umam, Choirul Umam
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Analysis of Influence of Cyclone Seroja on Wave Height and Tide in the Indian Ocean Umam, Choirul Umam; Pranowo, Widodo Setiyo; Azhari, Ferian Azhari; Hendra, Hendra; Setiyadi, Johar
Journal Omni-Akuatika Vol 20, No 1 (2024): Omni-Akuatika May
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.oa.2024.20.1.1114

Abstract

Tropical Cyclone Seroja, which occurred in the Indian Ocean, was characterized by maximum wind speeds of 70 knots. As part of the impact assessment associated with the cyclone, wave height observations were conducted along its track and tidal examinations were carried out at Cape Cuvier and Kupang tidal stations. Therefore, this research aims to analyze the relationship between wind speed and wave height, as well as the impact of Cyclone Seroja on waves and tide. The results showed that Cyclone Seroja reached a very high intensity with maximum wind speeds of 70 knots and maximum wave height of 14.24 meters on April 11, 2021, at 06:00 UTC. Regression analysis showed an R-squared value of 0.716, indicating that 71.6% of the variation in wave height can be explained by wind speed. The correlation value of 0.846 indicated a strong relationship between wind speed and wave height. This research also analyzed the changes in residual tide height at Cape Cuvier tidal station on April 11, 2021, with a maximum residual height of 0.57 meters. Wave height propagation from wave station 1487 significantly influenced the residual tide value at Cape Cuvier, with wave height of 11.790 meters and a propagation speed of 40.42 km/h. At Kupang tidal station, there was a residual height change of up to 0.27 meters, caused by influence of low pressure around wave station 239, with an average pressure of 1001 pHa and an average wave height of 3.89 meters, propagating towards the Kupang tidal station during the formation phase of Tropical Cyclone Seroja. Keywords: Cyclone; Seroja; Wave; Tide; Indian Ocean.
IMPLEMENTASI MEDIA PEMBELAJARAN BERBASIS SMART BOX SEBAGAI INOVASI PEMBELAJARAN KEBUDAYAAN DI SDN JUNGANYAR 01, BANGKALAN Nataliya, Indah; Mukti, Puan Pramesti Sayidina; Hidayati, Maudy Fitria; Wahyudi, Ahmad Dani Nur; Sari, Indah Puspita; Umam, Choirul Umam
Jurnal Abdimas Gorontalo (JAG) Vol 8 No 2 (2025): Jurnal Abdimas Gorontalo (JAG), November 2025
Publisher : UPPM Politeknik Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30869/jag.v8i2.1529

Abstract

Arus modernisasi menjadi tantangan serius terhadap pelestarian budaya Nusantara di kalangan generasi muda, dimana metode pembelajaran tradisional sering dianggap monoton dan kurang menarik. Kondisi ini mendesak dilakukannya revitalisasi pembelajaran budaya sejak dini di tingkat Sekolah Dasar (SD) untuk menanamkan rasa nasionalisme dan mempertahankan identitas bangsa. Pengabdian ini bertujuan untuk mengimplementasikan efektivitas media pembelajaran inovatif Smart Box (Kotak Pintar) berbasis Augmented Reality (AR). Program PKM-PM ini dilaksanakan melalui serangkaian tahapan yang sistematis, meliputi koordinasi dengan mitra (guru dan kepala sekolah), perancangan dan pembuatan prototipe media Smart Box yang menampilkan visualisasi budaya 3D, sosialisasi, dan penyampaian materi interaktif. Hasil program ditandai dengan peningkatan hasil kuesioner Sesudah Program jawaban “YA” mencapai angka 37-39 dari 41 responden di setiap pertanyaan. Sedangkan hasil Sebelum Program mayoritas memilih “NETRAL/RAGU-RAGU” pada pertanyaan H (31 siswa), I (30 siswa), F (29 siswa), dan G (27 siswa). Model pembelajaran kombinasi media digital interaktif dan aktivitas terbukti efektif dalam memicu minat belajar dan membentuk sikap positif siswa terhadap warisan budaya Nusantara.
Co-Authors Azhari, Ferian Azhari Hendra Hendra Hidayati, Maudy Fitria Indah Puspita Sari, Indah Puspita Mukti, Puan Pramesti Sayidina Nataliya, Indah Setiyadi, Johar Wahyudi, Ahmad Dani Nur Widodo S Pranowo