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All Journal Jurnal Kelautan : Indonesian Journal of Marine Science and Technology Jurnal Kelautan Tropis Jambura Journal of Mathematics Jurnal Pendidikan Fisika dan Teknologi Maritime Park: Journal Of Maritime Technology and Socienty Geosains Kutai Basin
Norfahmi, Siti Hairunnisa
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Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Earth & Planetary Sciences Education Environmental Science Industrial & Manufacturing Engineering Mathematics Mechanical Engineering Physics

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Wind Pattern Analysis and Its Impact on Flight Safety at Fatmawati Soekarno Airport Using Wind Rose Method (2019-2023) Agustina, Tari; Rosyid, Muhammad Ilham; Johan, Septi; Norfahmi, Siti Hairunnisa; Lizalidiawati, Lizalidiawati
Jurnal Pendidikan Fisika dan Teknologi (JPFT) Vol 11 No 1 (2025): January-June
Publisher : Department of Physics Education, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpft.v11i1.8465

Abstract

A study of wind patterns was conducted to minimize aircraft accidents at Fatmawati Soekarno Airport, Bengkulu City. The data was then processed using the Wrplot application to show the direction and difference in wind speed and create a wind pattern image in the form of a wind rose diagram. This study aims to analyze wind patterns and speeds at Fatmawati Soekarno Airport, Bengkulu City for a period of 5 years (2019-2023) using the Wind Rose method. Data obtained from the Meteorology, Climatology, and Geophysics Agency, Fatmawati Bengkulu Meteorology Station shows that the dominant wind direction comes from the Southeast, Northeast, and North which are influenced by seasonal changes. The results of the analysis show extreme wind speeds ranging from 2.50 - 4.70 m / s which are classified as light winds and are still safe for flight operations. With a deep understanding of this wind pattern, it is hoped that airport managers can optimize the use of runways and improve flight safety by accommodating weather conditions. The results of this study also emphasize the importance of consistent wind pattern monitoring to support risk management related to extreme weather.
Analisis Pengaruh Tekanan Udara, Kelembaban, dan Suhu Udara terhadap Curah Hujan di Kota Bengkulu selama El Niño 2023 Wahyuni, Ani Sri; Edkayasa, Mardho Tillah; Johan, Septi; Norfahmi, Siti Hairunnisa; Lizalidiawati, Lizalidiawati
Jurnal Kelautan Vol 18, No 2: Agustus (2025)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v18i2.29965

Abstract

ABSTRAKFenomena El Niño sangat memengaruhi dinamika atmosfer, meliputi variabel seperti tekanan udara, kelembaban, dan suhu, sehingga memengaruhi pola presipitasi di Kota Bengkulu. Penelitian ini bertujuan untuk mengetahui hubungan antara tekanan udara, kelembaban udara, dan suhu udara terhadap pola curah hujan dari tahun 2019 hingga 2023, dengan fokus pada fenomena El Niño yang terjadi pada tahun 2023. Data diperoleh dari Stasiun Klimatologi Bengkulu dan Stasiun Meteorologi Fatmawati Soekarno, serta data Oceanic Niño Index (ONI) dari NOAA. Penelitian ini menggunakan metodologi deskriptif dan analisis regresi linier berganda, yang dilakukan dengan menggunakan Microsoft Excel. Hasil penelitian menunjukkan bahwa terdapat korelasi yang signifikan antara suhu udara, tekanan udara, dan kelembaban udara di Stasiun Klimatologi, dengan koefisien korelasi sebesar 0,54. Sebaliknya, parameter cuaca di Stasiun Meteorologi memiliki koefisien korelasi yang lebih rendah, yaitu 0,42. Hasil ini menyatakan bahwa adanya varians dalam hubungan antara variabel meteorologi tersebut di berbagai lokasi pengamatan. Hal ini mengonfirmasi bahwa El Niño menyebabkan penurunan curah hujan akibat meningkatnya suhu dan tekanan udara, serta berkurangnya kelembaban. Penelitian ini berpotensi menyediakan kerangka dasar untuk mengurangi dampak buruk kekeringan akibat perubahan iklim di wilayah Kota Bengkulu.Kata Kunci : Suhu Udara, Kelembaban, Tekanan, Curah Hujan, El Nino.ABSTRACTThe El Niño phenomenon significantly influences atmospheric dynamics, including factors like as air pressure, humidity, and temperature, hence impacting precipitation patterns in Bengkulu City. This study seeks to ascertain the correlation between air pressure, humidity, and temperature concerning rainfall patterns from 2019 to 2023, emphasising the El Niño phenomena of 2023. Data were acquired from the Bengkulu Climatology Station, the Fatmawati Soekarno Meteorology Station, and the Oceanic Niño Index (ONI) data provided by NOAA. This research employed a descriptive methodology and multiple linear regression analysis conducted via Microsoft Excel. The findings indicated a substantial association among air temperature, air pressure, and air humidity at the Climatology Station, with a correlation coefficient of 0.54. The Meteorology Station exhibited a lower correlation coefficient of 0.42 for the identical parameters. The results demonstrate variability in the correlation among these meteorological variables across different observation sites. The results indicate that El Niño leads to less precipitation owing to elevated temperature and air pressure, together with diminished humidity. This research may establish a foundational paradigm for alleviating the detrimental effects of climate change-induced droughts in coastal regions.Keywords: Air Temperature, Humidity, Pressure, Rainfall, El Nino.
Investigasi Deformasi Permukaan Tanah Pasca Gempabumi Myanmar 7.7 Mw 2025 Menggunakan Metode Differential Interferometry Syntetic Aperture Radar Azhari, M. Fikri; Harlianto, Budi; Norfahmi, Siti Hairunnisa
GEOSAINS KUTAI BASIN Vol. 8 No. 2 (2025)
Publisher : Geophysics Study Program, Faculty of Mathematics and Natural Sciences, Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/52yjec35

Abstract

Penelitian ini bertujuan untuk menginvestigasi deformasi permukaan tanah yang terjadi pasca gempa bumi Myanmar berkekuatan 7.7 Mw pada 28 Maret 2025. Sepasang data citra Sentinel 1A dan 1B digunakan dalam mengamati perubahan tanah sebelum dan setelah terjadinya gempa utama. Metode yang digunakan dalam penelitian ini yaitu Differential Interferometric Synthetic Aperture Radar (DInSAR), yang mampu mendeteksi perubahan kecil pada permukaan bumi dengan resolusi spasial tinggi. Data citra satelit Sentinel-1 diolah untuk menghasilkan interferogram yang menunjukkan pola deformasi. Hasil analisis menunjukkan adanya pergeseran permukaan tanah signifikan di sepanjang zona sesar aktif Sagaing dengan arah dominan pergeseran horizontal dan vertikal yang bervariasi. Deformasi maksimum terdeteksi di sekitar lokasi gempa utama mencapai -25 cm relatif mengalami penurunan muka tanah (subsidence) terhadap line of sight. Disisi lain terjadi kenaikan muka tanah (uplift) maksimum sebesar +2.3 cm terhadap line of sight di bagian barat daya Sesar Sagaing dan pusat gempa 7.7 Mw. Distribusi nilai deformasi menunjukkan orientasi yang sesuai dengan model mekanisme sumber gempa sesar geser menganan. Hasil uji model juga menunjukan kesesuaian citra yang akurat dengan nilai koherensi sebesar 0.6 hingga 0.9.
Microclimatic Temperature Variability and Trends in Bengkulu Province: ANOVA and Regression-Based Analysis Norfahmi, Siti Hairunnisa; Samdara, Rida; Supiyati, Supiyati; Lestari, Wina Ayu
Jambura Journal of Mathematics Vol 7, No 2: August 2025
Publisher : Department of Mathematics, Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jjom.v7i2.33376

Abstract

This study investigates the microclimatic variability and trends of air temperature across three meteorological stations—Fatmawati, Bengkulu, and Kepahiang—in Bengkulu Province, Indonesia. Using five years of daily data (June 2020 to May 2025), minimum (Tmin), maximum (Tmax), and average (Tavg) temperatures were analyzed to understand both spatial patterns and temporal changes in surface air temperature. One-way ANOVA was conducted to assess whether mean temperatures differed significantly across stations, followed by Tukey  post hoc test for pairwise comparisons. The analysis revealed a consistent and statistically significant difference in all temperature variables (p 0.05), particularly between the inland highland station (Kepahiang) and the two coastal stations. In addition, monthly averages of Tavg were analyzed using simple linear regression, with significance tested via regression-based ANOVA. All three stations exhibited statistically significant warming trends (p 0.005), with slopes ranging from +0.0152 to +0.0213 °C/month (~0.18–0.26 °C/year), despite relatively modest coefficients of determination (R² = 0.14–0.24). These results highlight a dual climatic dynamic in the region: strong seasonal and spatial variability, overlaid with emerging baseline warming. The study underscores the importance of localized climate analysis for adaptation planning, particularly in topographically diverse tropical regions facing increased exposure to climate variability and change.
Relationship Between Seasonal Oceanographic Parameter Fluctuations And Migration Of Mackerel Fish In Bengkulu Waters 2013-2023 Nasya, Angel Pauline; Norfahmi, Siti Hairunnisa; Supiyati; Erwina, Yuyun
Maritime Park: Journal of Maritime Technology and Society Volume 4, Issue 3, 2025
Publisher : Department of Ocean Engineering, Faculty of Engineering, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62012/mp.vi.45034

Abstract

Mackerel fish are a high-value fishery commodity whose migration patterns are influenced by several oceanographic factors. This study aimed to identify the influence of seasonal fluctuations in oceanographic parameters on the migration of tenggiri fish during 2013-2023 in seven waters of Bengkulu. Oceanographic data were obtained from the Marine Copernicus. The data were obtained from the Multi-Observation Global Ocean 3D Temperature Salinity Height Geostrophic Current and MLD product for the period from 2013 to 2023, with a spatial resolution of 0.125°, while the catch data were obtained from the Bengkulu Province Marine and Fisheries Department. The data were processed spatially and temporally using GrADS, Panoply, and ArcGIS. The results of the study show that temperature, salinity, and currents tend to be stable throughout the year, whereas chlorophyll-a and wind experience significant seasonal fluctuations. In Kaur, Bengkulu City, and North Bengkulu regions, spikes in chlorophyll-a and wind intensity during the Australian Monsoon and Transition II were positively correlated with increased mackerel catch yields. Conversely, areas such as Seluma and Central Bengkulu did not show a clear relationship between oceanographic parameters and catch yield. These findings confirm that chlorophyll-a and wind play a greater role in mackerel migration than do temperature or salinity.
Seasonal Variation of Ekman Transport in the Southern Waters of West Sumatra Siregar, Agustina; Anjasman, Anjasman; Johan, Septi; Norfahmi, Siti Hairunnisa; Lizalidiawati, Lizalidiawati
Jurnal Kelautan Tropis Vol 29, No 1 (2026): JURNAL KELAUTAN TROPIS
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkt.v29i1.30594

Abstract

This study examines seasonal variations in Ekman transport in the southern waters of western Sumatra using wind, ocean current, and sea level data from the Copernicus Marine Service for the period 2023–2024.  Data analysis was conducted spatially and temporally using Panoply, Python, and ArcGIS software. The results show that Ekman transport dynamics are significantly influenced by changes in the direction and intensity of the Asian–Australian monsoon winds. Maximum transport values were identified in the East Season at 4-5 m3/s due to strengthening southeasterly winds, while minimum values occurred in the West Season at 1-2 m3/s when westerly winds dominated the region. These seasonal variations show a close relationship with changes in surface currents and sea level, reflecting the dynamic response of the oceanographic system to the influence of wind friction. These results reinforce the understanding that Ekman transport plays an essential role in controlling regional ocean circulation patterns and provides an important scientific basis for marine resource management in the waters west of Sumatra.
Pengaruh Hidrodinamika Pantai Padang Betuah Terhadap Parameter Fisis Danau Gedang Bengkulu Tengah Supiyati, Supiyati; Johan, Septi; Norfahmi, Siti Hairunnisa; Irkhos, Irkhos
Jurnal Kelautan Tropis Vol 29, No 1 (2026): JURNAL KELAUTAN TROPIS
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkt.v29i1.30424

Abstract

Danau Gedang diduga sangat dipengaruhi oleh interaksi hirdodinamika dari laut akan tetapi hal ini belum ada kajian ilmiahnya. Dalam upaya mengoptimalkan potensi pemanfaatan Danau Gedang, dan pesisir pantai Padang Betuah maka penelitian ini bertujuan untuk menidentifikasi karakteristik hidrodinamika Pantai Padang Betuah dan parameter fisis Danau Gedang, serta pemetaan hidrodinamika Pantai Padang Betuah dan parameter Fisis Danau Gedang. Metode yang digunakan dalam penelitian ini adalah pengukuran in situ parameter hidrodinamika Pantai Padang Betuah dan parameter fisis Danau Gedang yang didukung dengan data citra satelit marine copernicus. Data diolah menggunakan software surfer, Arcgis, grad, dan WRPLOT yang selanjutnya dianalisis secara deskriptif dan kuantitatif. Hasil penelitian diperoleh karakteristik oseanografi Pantai Padang Betuah  diperoleh tipe pasang surut yang terjadi merupakan  tipe pasang surut campuran condong ke harian tunggal (Mixed Tide Prevailing Diurnal), yaitu dalam satu hari terjadi dua kali pasang dan dua kali surut, tetapi kadang – kadang untuk sementara waktu terjadi satu kali pasang dan satu kali surut dengan tinggi dan periode yang berbeda secara signifikan dengan bilangan formzal 0,63 dan tinggi muka laut rata-rata (MSL) sesaat yaitu 26,2 cm. Kecepatan arus rata-rata didapat sebesar 0,29 m/s  dan ketinggian gelombang rata-rata sebesar 0,23 m. Secara umum hidrodinamika pantai Padang Betuah sangat mempengaruhi karakteristik parameter fisis Danau Gedang, karena memiliki kecendrungan karakteristik yang hampir sama, dan sedimen yang terdapat di Pantai Padang Betuah dan Danau Gedang sama yaitu dominan pasir, diduga saat kondisi pasang pasir terbawa arus ke danau, hal ini ditunjukan dengan tekstur presentase nilai pasir yang lebih dominan di Danau Gedang yaitu 92,14%.
Co-Authors Agustina, Tari anjasman, anjasman Azhari, M. Fikri Edkayasa, Mardho Tillah Erwina, Yuyun Harlianto, Budi Irkhos Irkhos Johan, Septi Lestari, Wina Ayu Lizalidiawati Lizalidiawati Nasya, Angel Pauline Rida Samdara Rosyid, Muhammad Ilham Siregar, Agustina Supiyati . Wahyuni, Ani Sri