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All Journal Jurnal Geliga Sains: Jurnal Pendidikan Fisika Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Phi : Jurnal Pendidikan Fisika dan Terapan JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI Jurnal Pendidikan Fisika Edufisika: Jurnal Pendidikan Fisika JOURNAL ONLINE OF PHYSICS Berkala Ilmiah Pendidikan Fisika Jurnal Inovasi dan Pembelajaran Fisika Sriwijaya University Learning and Education International Conference Science and Technology Indonesia JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah) JPPPF (Jurnal Penelitian dan Pengembangan Pendidikan Fisika) Seminar Nasional Pendidikan IPA Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Ilmiah Pendidikan Fisika Spektra: Jurnal Fisika dan Aplikasinya Al-Madrasah: Jurnal Ilmiah Pendidikan Madrasah Ibtidaiyah Jurnal Ilmu Fisika Jurnal Dedikasi Pendidikan Indonesian Physical Review Jurnal Inovasi Pendidikan Jurnal Teori dan Aplikasi Fisika Jurnal Kumparan Fisika Kappa Journal JURNAL PENDIDIKAN MIPA Bubungan Tinggi: Jurnal Pengabdian Masyarakat Optika : Jurnal Pendidikan Fisika Djtechno: Jurnal Teknologi Informasi JagoMIPA: Jurnal Pendidikan Matematika dan IPA Magnetic: Research Journal of Physics and It’s Application Pillar of Physics Education : Jurnal Berkala Ilmiah Pendidikan Fisika Pillar of Physics: Jurnal Berkala Ilmiah Fisika JIFP (Jurnal Ilmu Fisika dan Pembelajarannya) Prisma Sains: Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Aceh International Journal of Science and Technology Indonesian Research Journal on Education Innovative: Journal Of Social Science Research Jurnal Pendidikan dan Pengabdian Masyarakat Indonesian Journal of Education Research (IJoER) Jurnal Pendidikan Fisika Jurnal Pendidikan MIPA Sriwijaya University Learning and Education International Journal JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah) Pedagogi: Jurnal Pendidikan Dasar
Hamdi Akhsan
Department Of Physics Education Faculty Of Teaching And Education, Sriwijaya University, Indralaya, 30139, Indonesia
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Journal : Indonesian Physical Review

 1 
MORLET’S WAVELET ANALYSIS ON EL NIÑO SOUTHERN OSCILLATION (ENSO) AND THE INDIAN OCEAN DIPOLE (IOD) FOR 84 YEARS: 1940-2023 Suhadi, Suhadi; Putri, Jamiatul Khairunnisa; Iskandar, Iskhaq; Supari, Supari; Irfan, Muhammad; Ariska, Melly; Akhsan, Hamdi
Indonesian Physical Review Vol. 7 No. 3 (2024)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v7i3.363

Abstract

As is known, the impact caused by El Niño Southern Oscillation (ENSO) and the Indian Ocean Dipole (IOD) can reach extreme levels, especially rainfall in Indonesia. So, updating information on events and cycles of these phenomena is essential. Using Sea Surface Temperature (SST) data spanning the previous 84 years (1940–2023) from ERA5, we examined Sea Surface Temperature Anomalies (SSTA), which serve as a predictive tool for ENSO and IOD events. Apart from that, in this research, SSTA variance analysis was also carried out using Wavelet. The analysis results show several Positive IOD-Like events (1943, 1944, 1977, 1996) and Negative IOD-Like (1985, 1992, 2016). Apart from that, the results of this research also show that El Niño in 2002/03 coincided with Negative IOD in 2002. The results of Wavelet analysis show that the SSTA DMI variance experienced increased activity in the periods 1940-1968, 1969-1991, and 1992-2023. The Wavelet analysis also shows that ENSO activity increased in 1970-2000 and decreased again in 2000-2023.
ANALYSIS OF RAINFALL PATTERNS IN THE NUSA TENGGARA REGION USING THE FAST FOURIER TRANSFORM (FFT) METHOD AND ITS RELATIONSHIP WITH EL-NIÑO AND IOD Agustina, Atika; Akhsan, Hamdi; Ariska, Melly; Suhadi, Suhadi; Andriani, Nely
Indonesian Physical Review Vol. 8 No. 1 (2025)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v8i1.397

Abstract

Changes in rainfall patterns have a significant impact on agriculture and water management in arid regions such as Nusa Tenggara. Water availability in this region is highly dependent on rainfall, which is influenced by global climate phenomena such as El-Niño and the Indian Ocean Dipole (IOD). This study aims to analyze the characteristics of rainfall patterns and analyze the relationship between rainfall and the El-Niño and IOD phenomena. Daily rainfall data from three BMKG observation stations in West Nusa Tenggara and East Nusa Tenggara during the period 1983-2022 were used in the analysis. The Fast Fourier Transform (FFT) method is used to identify periodic cycles, while the Pearson correlation test is used to determine the relationship of rainfall with El-Niño and IOD. The analysis shows that the Nusa Tenggara region is characterized by a monsoonal rainfall pattern with an annual cycle (12 months). Peak rainfall occurs in January and December, while the dry season lasts from July to September. The correlation of rainfall with El-Niño shows a weak negative relationship, while the influence of IOD is very small and varies between locations. The analysis shows that the rainfall pattern in the Nusa Tenggara region is monsoonal with an annual cycle (12 months) and semi-annual cycle (6 months). The peak of rainfall occurs from December to January, while the dry season lasts from July to September. The relationship between rainfall and El-Niño shows a weak negative correlation, so that when El-Niño increases, rainfall tends to decrease, and vice versa. The influence of IOD on rainfall is very small and varies between locations. Overall, while both El-Niño and IOD affect rainfall, their impact in the region is weak and more significant when both phenomena occur together.
Co-Authors Abidin Pasaribu Abidin Pasaribu Abidin Pasaribu, Abidin Adam Darmawan Ade Kurniawan Ade Kurniawan Agustina, Atika Aji, Dwi Purnomo Apit Fathurohman Arini Rosa Sinensis Atika Agustina Ayu Sekar Sari Azizah Putri Berimah Berimah, Azizah Putri Damayanti, Fitria Siska Dwi Purnomo Aji Dwicahyani, Rania Edray, Auliya Einsrizkianne Elsie Sulastry Fahreza, Muhammad Aditya Febrianti, Tanti Fena Siska Putriyani Fika Nurul Hidayati Fitria Siska damayanti Fitriyani Fitriyani Guruh Sukarno Putra Husna, Tsabita Iful Amri Ina Agustina Intan Purnama Sari Ishkaq Iskandar Iskhaq Iskandar Iskhaq Iskandar Iskhaq Iskandar Iskhaq Iskandar Ismet Ismet Ismet Ismet Ismet, Ismet Ismet, I. Izzah Nurhidayah, Izzah Jesi Pebralia Juwita Febrianti Kartika, Nadia Dwi Ketang Wiyono Ketang Wiyono Ketang Wiyono Kistiono Kistiono Kistiono Kistiono Komarudin Komarudin Kurnia, Mega Lara Sania Laras Sapitri, Cindy Leni Marlina Leni Marlina Lestari, Yora Inda Lira, Lira Lismayana, Pegi Putri M. FURQON Mahmudah, Indri Maliya, Fina Manurung, Nia Three Melly Ariska Melvany, Nanda Eva Miftahul Jannah Mindia Vanessa Pratiwi, Sri Muhamad Yusup Muhammad afrizal Muhammad Aufa Riyaldo Muhammad Irfan Muhammad Irfan Muhammad Irfan Muhammad Irfan Muhammad Irfan Muhammad Muslim muhammad muslim Muhammad Muslim Muhammad Muslim, Muhammad Muhammad Romadoni Muhammad Romadoni Muhammad Yusuf Muhammad Yusup Murnia Murniati Murniati . Muslimah, Resta Ulis Mutia Faradini Ramadhanty Napitupulu, Yendri Tri Hartati Nasiroh, Anisa Qoriq Atun Nazhifah, Rizqia Nely Andriani Nely Andriani, Nely Nestity, Alifia Nia Nopeliza, Nia Nia Three Manurung Nilam Cahyati Nora Herliza Noviana, RA Sania Pertiwi, Nadiar Pratiwi Ineke Anwar Putra, Gede Mudita Edi Putra, Guruh Sukarno Putri Maulida, Nabila Putri, Jamiatul Khairunnisa Putri, Mutiara Juliana Putriyani, Fena Siska Qathrunnada, Sausan Rahman, Nor Farahwahidah Abdul Rahmannisa, Amanda Ramadhani, Neysya Ditha Rara, Rara Redondo, Fernando Eric Ribkoh, Ribkoh Risa Albeta Rizki Novianti, Rizki Romadoni, Muhammad Sadly, Deni Salmah Rianti Salmah Rianti Saparini Saparini Sardianto Markos Siahaan, Sardianto Markos Sari, Dwita Kartika Sari, Mona Seprina, Iin Sholeha, Nurlita Dwi Siti Nur Azizah Sri Mindia Vanessa Pratiwi Sri Zakiyah Sudirman Sudirman Sudirman Sudirman Suhadi Suhadi Suhadi Suhadi Suhadi Suhadi Supardi Supardi Supari Supari Supari Supari Supari Supari Supari, Supari Syahputri, Selvia Mariska Syuhendri, Syuhendri Tine Aprianti Utami, Amanda Kurnia VIOLANTI ANARKY, VIOLANTI Wati, Lira Diska Winarni, Kiki Ayu Wulandari, Dwi Noviana Yuli Setianingsih Yuliana, Rahma Zulherman Zulherman Zulherman Zulherman, Zulherman