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All Journal ILMU KELAUTAN: Indonesian Journal of Marine Sciences BULETIN OSEANOGRAFI MARINA CAUCHY: Jurnal Matematika Murni dan Aplikasi Jurnal Kelautan Tropis Jurnal Pendidikan Geografi: Kajian, Teori, dan Praktik dalam Bidang Pendidikan dan Ilmu Geografi Journal of Geoscience, Engineering, Environment, and Technology Journal of Applied Geospatial Information MAJALAH ILMIAH GLOBE JURNAL INTEGRASI BULLETIN OF THE MARINE GEOLOGY Dinamika Maritim Majalah Ilmiah Pengkajian Industri International Journal of Renewable Energy Development
Hanah Khoirunnisa
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Aerospace Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Mathematics Physics Transportation Other

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Assessment of Sensitivity and Validity Hydrodynamic Model in Cisadane Using Delft3d Flow Model Pasma, Gumilang Ramadhan; Suharyanto, Hamzah Haru Radityo; Khoirunnisa, Hanah; Wijayanti, Reni; Gumbira, Gugum; Rachman, Reno Arief
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 29, No 1 (2024): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ik.ijms.29.1.133-146

Abstract

The National Capital Integrated Coastal Development (NCICD) program was prioritized as a disaster reduction technology within the annual target of BRIN in 2022. It is a part of the North Java Coastal Integrated Development Program project. A coastal reservoir development plan at the Cisadane River estuary is one of the outcomes. In this case, hydrodynamic modelling is needed to acquire hydrodynamic properties under the existing condition of Cisadane downstream, and it applied the Delft3D-FLOW model. The bathymetric data used in this simulation was obtained from the assimilation of national bathymetric data with a grid spacing of 180 m and field survey data with a horizontal resolution of 10 m and transect spacing of 200 m seaward of the Cisadane estuary. It has interpolated in a regular structured grid with 100 m and 50 m grid spacing. In addition, other data used are three hourly wind data downloaded from the European Centre for Medium-Range Weather Forecasts (ECMWF) and the daily discharge of the Cisadane River in 2021. Astronomical water level data generated from TPXO 7.2 and TPXO 8 were used in the boundary conditions. These data are simulated using the two and three-dimensional flow model Delft3D-FLOW during November 1 – 15, 2021, using four manning coefficients (n) values, which are 0.03; 0.035; 0.04; and 0.045. The validation formulation used Normalization Root Mean Square Error (NRMSE), resulting in 5.3 - 9.6% for all the manning values and domains. The highest correlation coefficient of current velocity (u-v components) is acquired in the 10 km2 domain with 0.797 for the L3 (bottom layer).
Kajian Karakteristik dan Run-Up Gelombang Tsunami Berdasarkan Pemodelan Hidrodinamika 2D di Perairan Selatan Bali Tagore, Rafa Fahrezi; Helmi, Muhammad; Satriadi, Alfi; Khoirunnisa, Hanah; Ismanto, Aris
Buletin Oseanografi Marina Vol 14, No 1 (2025): Buletin Oseanografi Marina
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/buloma.v14i1.62777

Abstract

Pulau Bali merupakan wilayah yang memiliki potensi bencana alam seperti gempa bumi dan tsunami karena terletak di zona subduksi pertemuan lempeng Indo-Australia dengan lempeng Eurasia dan zona sesar belakang Flores. Kejadian tsunami telah terjadi di wilayah selatan Bali akibat dari bencana gempa Sumbawa (1977) dan gempa Banyuwangi (1994). Kajian terkait karakteristik dan run-up gelombang tsunami masih jarang dilakukan. Penelitian ini dilakukan dengan tujuan untuk mengetahui karakteristik dan run-up gelombang tsunami menggunakan pemodelan hidrodinamika 2D. Simulasi dilakukan menggunakan skenario gempa terburuk dengan kekuatan magnitudo 9,0 melalui model TUNAMI F1 dan TUNAMI N3. Hasil dari penelitian ini menunjukkan bahwa gelombang tsunami yang menjalar dari episenter menuju pesisir selatan Bali memiliki karakteristik waktu tempuh berkisar antara 16 menit 5 detik hingga 30 menit 35 detik dengan tinggi gelombang maksimum berkisar antara 11,113 – 34,446 m. Waktu tempuh penjalaran tercepat dengan tinggi gelombang tertinggi terdapat pada titik observasi Uluwatu dan Pandawa karena jarak yang dekat dengan episenter. Limpasan gelombang yang masuk ke daratan pesisir selatan Pulau Bali mampu menjangkau daratan hingga kisaran 257 – 3140 m dengan limpasan terjauh pada titik observasi Kuta karena morfologi pantai berpasir yang landai, sedangkan Uluwatu dan Pandawa menerima limpasan yang paling sedikit karena morfologi pantai yang berbatu dan tebing curam.
Studi Karakteristik Sedimen Menggunakan Metode Statistik Gradistat Untuk Mendukung Pengembangan Pelabuhan Patimban Rachman, Reno Arief; Firmansyah, Raka; Aziiz, Shafan Abdul; Catur Istiyanto, Dinar; Suharyanto, Hamzah Haru Radityo; Rahili, Nurkhalis; Widagdo, Aloysius Bagyo; Wibowo, Mardi; Khoirunnisa, Hanah
Buletin Oseanografi Marina Vol 14, No 1 (2025): Buletin Oseanografi Marina
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/buloma.v14i1.60085

Abstract

Pengembangan Pelabuhan Patimban di Subang diharapkan sebagai penyokong pelabuhan Tanjung Priok di Jakarta yang sudah tidak mampu memenuhi kebutuhan bongkar muat dari para pelaku usaha khususnya di Jawa Barat. Dalam melakukan perencanaan dan pengembangan pelabuhan, salah satu hal utama yang perlu dipertimbangkan adalah masalah sedimentasi. Proses sedimentasi di perairan sangat terkait dengan karakteristik sedimen. Tujuan penelitian ini adalah untuk mengetahui pola sebaran karakteristik sedimen dasar seperti kadar air, berat jenis, gradasi, tekstur sedimen, ukuran d50 butir sedimen dan analisis statistik sedimen dasar sehingga dapat mendukung rencana pengembangan pelabuhan. Metode yang dipakai adalah pengambilan sampel sedimen di lapangan, pengujian sampel sedimen di laboratorium, analisis sedimen secara statistik dan analisis deskriptif karakteristik sedimen dasar menggunakan metode Gradistat. Berdasarkan hasil kajian diketahui nilai kadar air 59,06-210,046 %, berat jenis 1,951–2,494 g/cm3, nilai d50 0,07–0,16 mm, ukuran rerata butir 64,0-86,5 µm, sortasi sedimen moderately sorted (terpilah cukup), analisis statistik sedimen tipe platykurtic, jenis lithologi didominasi oleh lanau dan pasir. Diharapkan hasil penelitian ini dapat membantu pengelolaan sedimentasi, merancang pondasi bangunan pantai dan struktur lainnya secara tepat dan efisien. 
SEDIMENT CHARACTERISTICS TO SUPPORT THE REVITALIZATION OF TPPI TUBAN PORT, EAST JAVA, INDONESIA Rachman, Reno Arief; Wibowo, Mardi; Widagdo, Aloysius Bagyo; Rahili, Nurkhalis; Yuniardi, Rizaldi Caesar; Suharyanto, Hamzah Haru Radityo; Hamid, Affandy; Subarkah, Aris; Suranto, Suranto; Khoirunnisa, Hanah
BULLETIN OF THE MARINE GEOLOGY Vol 39, No 1 (2024)
Publisher : Marine Geological Institute of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32693/bomg.39.1.2024.874

Abstract

TPPI Tuban Port is located in Tuban Regency, East Java. Geologically, the rocks are composed of reef limestone in the Paciran Formation, which is Pliocene–Early Pleistocene. The importance of complying with jetty capacity standards and water conditions in commercial ports is emphasized as the key to maintaining smooth port operations, making port revitalization a necessity. One of the main aspects to consider is the sedimentation problem, closely related to sediment characteristics. A deep understanding of sediment dynamics is essential for designing effective solutions to ensure the sustainability of port operations. This research aims to determine the distribution pattern of bed load characteristics such as water content, specific gravity, gradation, sediment texture, d50 size of sediment grains, and statistical analysis of bed load sediment in the west and rainy seasons, where the influence of sediment from land is very large. so it is hoped that it can support the port revitalization plan. The methods used include taking sediment samples in the field, testing sediment samples in the laboratory, statistical sediment analysis, and descriptive analysis of bed load characteristics using the Gradistat method. Based on the study results, the water content value ranges from 22.446% to 218.289%, and the specific gravity ranges from 2,100 g/m³ to 2.690 g/cm³. Additionally, the grain size varies from 0.080 mm to 0.900 mm, and the average grain size ranges from 261.1 μm to 2657.5 μm. Sediment sorting is dominated by very poorly sorted materials, with statistical analysis indicating a dominance of the very platykurtic type. The lithological type is predominantly sand.
Development of a Fuzzy Logic Model for Tsunami Early Detection Using Tunami F1 on the Southern Coast of Yogyakarta International Airport, Jogja Naqiya, Sadiyana Yaqutna; Khoirunnisa, Hanah; Pradananta, Galih
CAUCHY: Jurnal Matematika Murni dan Aplikasi Vol 10, No 2 (2025): CAUCHY: JURNAL MATEMATIKA MURNI DAN APLIKASI
Publisher : Mathematics Department, Universitas Islam Negeri Maulana Malik Ibrahim Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/cauchy.v10i2.35416

Abstract

Tsunami disaster mitigation requires a reliable early warning system to reduce traumatic impacts and material losses. This study develops a fuzzy logic model for early tsunami detection by integrating wave height (SSH) and estimated tsunami arrival time (ETATSU) parameters. The model is combined with the TUNAMI F1 simulation, which considers seabed topography and fluid dynamics. Simulations were conducted on 36 earthquake scenarios on the southern coast near Yogyakarta International Airport (YIA). The results show that the model successfully classifies tsunami risks into three categories: alert, standby, and emergency, with an overall accuracy of 83.3%. Some scenarios showed invalid results at high magnitudes (Mw ≥ 8.5). This research improves the accuracy of tsunami early warning systems, potentially saving more lives and minimizing the impact of disasters.
Co-Authors Aditya Hanafi Aditya Hanafi, Aditya Alfi Satriadi Aloysius Bagyo Widagdo Arif Roziqin Arif Roziqin Arif Roziqin, Arif Arini Dewi Lestari Situmorang Aris Ismanto Aziiz, Shafan Abdul Catur Agus Lukitasari Catur Istiyanto, Dinar Daniel Sutopo Pamungkas, Daniel Sutopo Dinar Catur Istiyanto Dinar Catur istiyanto Dirgan Timbang Dirgan Timbang, Dirgan Fadli Syamsudin Fajar Rizki Firmansyah, Raka Ganda Surya Ganda Surya, Ganda Gumbira, Gugum Guspriyanto, Deny Guspriyanto, Deny Hamid, Affandy Haryo Dwito Armono Khusnul Setia Wardani Khusnul Setia Wardani khusnul Setia Wardani Khusnul Setia Wardhani Mandala, Gio Fitra Tirta Mandala, Gio Fitra Tirta Mardi Wibowo Mardi Wibowo Mardi Wibowo Mardi Wibowo Mardi Wibowo Muhammad Helmi Muhammad Zainuddin Lubis Naqiya, Sadiyana Yaqutna Nining Sari Ningsih Novita Ayu Dewanti Oktavianto Gustin Pasma, Gumilang Ramadhan Perdi Novanto Sihombing Pradananta, Galih Rachman, Reno Arief Rahili, Nurkhalis Ramadhan, Wahyu Rizky Ramadhan, Wahyu Rizky Reni Wijayanti Reni Wijayanti Reni Wijayanti Reno Arief Rachman Reno Arif Rachman Riza Fahmi Rizky, Fajar Rizky, Fajar Satriya Bayu Aji Shofia Karima Situmorang, Arini Dewi Situmorang, Arini Dewi Subarkah, Aris Sudra Irawan Suharyanto, Hamzah Haru Radityo Suranto Suranto Tagore, Rafa Fahrezi Ulung Jantama Wisha Ulung Jantama Wisha Wahyu Hendriyono Wahyu Hendriyono Wenang Anurogo Widagdo, Aloysius Bagyo Yuniardi, Rizaldi Caesar