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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis ComEngApp : Computer Engineering and Applications Journal IJCCS (Indonesian Journal of Computing and Cybernetics Systems) ILMU KELAUTAN: Indonesian Journal of Marine Sciences Scientific Journal of Informatics Journal of Mechanical Engineering Science and Technology Jurnal Penelitian Pendidikan IPA (JPPIPA) Spektra: Jurnal Fisika dan Aplikasinya Journal of Physics and Its Applications Jurnal Kelautan Nasional Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam Jurnal Ilmu Fisika Jurnal Pendidikan Fisika dan Teknologi Eksakta : Berkala Ilmiah Bidang MIPA Jurnal Kumparan Fisika Kappa Journal Authentic Research of Global Fisheries Application Journal (Aurelia Journal) Indonesian Review of Physics (IRiP) MARLIN : Marine and Fisheries Science Technology Journal Journal of Environmental Science and Sustainable Development TECHNO-SOCIO EKONOMIKA Community Development Journal: Jurnal Pengabdian Masyarakat Zona Laut : Jurnal Inovasi Sains dan Teknologi Kelautan Indo-MathEdu Intellectuals Journal Geosfera: Jurnal Penelitian Geografi Jurnal Pengabdian Masyarakat dan Riset Pendidikan Wahana Fisika : Jurnal Fisika dan Terapannya Scientific Contributions Oil and Gas
Lulut Alfaris
Department Of Marine Technology, Politeknik Kelautan Dan Perikanan Pangandaran, Indonesia
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Transportation Other

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KOLABORASI BERSAMA MASYARAKAT DALAM UPAYA REVITALISASI KAWASAN MANGROVE BULAKSETRA, PANGANDARAN, JAWA BARAT Baswantara, Arif; Wibowo, Yuni Ari; Alfaris, Lulut; Kusdinar, Afriana; Firdaus, Anas Noor; Sembiring, Kennedi; Hakim, Muhammad Romdonul; Prayitno, Muhammad Riyono Edi
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 4 No. 6 (2023): Volume 4 Nomor 6 Tahun 2023
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v4i6.23568

Abstract

Kawasan mangrove bulaksetra yang berada di wilayah Desa Babakan, Kecamatan Pangandaran telah banyak mengalami alih fungsi lahan sejak tahun 2017. Alih fungsi ini mengakibatkan beberapa kerusakan, sehingga pengembalian ke kondisi semula (revitalisasi) perlu dilakukan khususnya pada pengembalian vegetasi mangrove dan vegetasi pesisir lainnya di kawasan ini. Selain melaksanakan aktivitas penanaman, kolaborasi bersama kelompok penggerak masyarakat juga dirasa penting agar proses revitalisasi ini dapat berlangsung secara berkelanjutan. Kegiatan Pengabdian Kepada Masyarakat di Desa Babakan dilaksanakan secara terprogram selama enam bulan dengan enam tahapan kegiatan. Program ini dilaksanakan untuk membantu Kelompok Penggerak dan Pengelola Kawasan Pesisir Bulaksetra (KPPKP-Bulaksetra) yang telah ada di masyarakat, dalam proses revitalisasi kawasan mangrove. Berdasarkan hasil evaluasi yang dilaksanakan disetiap tahapan kegiatan dan di akhir program, diperoleh kesimpulan bahwa masyarakat merasakan manfaat dari program pengabdian tersebut, dan program ini akan terus dilanjutkan hingga proses revitalisasi menunjukkan perkembangan.
Distribution of Temperature and Salinity on Fishing Zone in The Regional Fisheries Management of Indonesia (WPP-RI) 573 Wahyudi, Andri; Ginanjar, Martin Anjar; Alfaris, Lulut
Indo-MathEdu Intellectuals Journal Vol. 6 No. 1 (2025): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v6i1.2106

Abstract

The Fisheries Management Republik Indonesia (WPP-RI) 573 encompasses strategic waters in the southern Indian Ocean of Indonesia, playing a critical role in global ocean circulation through the Indonesian Throughflow (ITF). This study aims to examine the physical oceanographic characteristics, particularly sea surface temperature (SST), salinity, and marine ecosystem productivity in WPP 573, as well as the impacts of ITF variability on these parameters. Data utilized include SST, salinity, and current velocity obtained from satellite observations and numerical models. The analysis reveals that the ITF transports tropical water masses from the Pacific Ocean to the Indian Ocean, significantly influencing the spatial and temporal distribution of temperature and salinity in the region.
Examining The Interrelationship Among Chlorophyll-A Distribution, Sea Surface Temperature Patterns, and Fishing Ground in Southern Java Sea Ginanjar, Martin Anjar; Wahyudi, Andri; Alfaris, Lulut
Indo-MathEdu Intellectuals Journal Vol. 6 No. 1 (2025): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v6i1.2626

Abstract

The Southern Java Sea is vital for sustaining marine ecosystems and fisheries productivity, shaped by dynamic oceanographic processes. This research investigates the relationship between chlorophyll-a distribution, sea surface temperature (SST) patterns, and the spatial dynamics of fishing grounds in the area. Using satellite-based data from Aqua-MODIS and numerical model outputs, chlorophyll-a levels and SST variability were analyzed on 2024. Descriptive statistics and spatial analysis were applied to identify temporal trends and their connection to productive fishing zones. The results indicate a strong correlation between chlorophyll-a distribution and SST patterns, with seasonal changes significantly influencing fishing ground productivity. These findings provide critical insights for advancing sustainable fisheries management and resource planning in the Southern Java Sea. The study emphasizes the need to incorporate oceanographic indicators into fisheries policies to promote ecosystem health and economic resilience.  
Rancang Bangun Mini Rov dengan Penggunaan PWM Speed Controller Module sebagai Sistem Kendali: Design and Build Mini Rov Using PWM Speed Controller Module as A Control System Alfaris, Lulut; Firdaus, Anas Noor; Bramawanto, Rikha; Hareva, Batih Shendy Capri; Putri, Miranda; Baswantara, Arif
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 15 No. 2 (2023): Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitkt.v15i2.43466

Abstract

Remotely Operated Vehicle (ROV) is an underwater vehicle or robot designed to able to move in the water. The increasing need for ROV in the future will require an ROV that is easy to build and operate. This study aims to design and build an ROV that is easy to manufacturing and easy to operate, which can be used for observation purposes in the future. The ROV designed with dimensions of length was 311,89 mm, width was 240 mm and height was 180 mm. ROV had three thruster motors with Pulse Width Modulation (PWM) Speed Controller Module as a control system. The ROV test were conducted motion tests and maneuvering tests, with the results shown that the ROV had an average forward speed of 0,26 m/s with the turning time was 6,3 s for 180° to portside, 6,7 s for 180° to starboard and time for circular motion was 8,2 s. The ROV’s motion test and maneuvering test showed good results, so that further development plans for this ROV can be carried out.
IMPACT OF URBAN DEVELOPMENT ON UV EXPOSURE: A CLUSTERING AND MACHINE LEARNING ASSESSMENT Sahroni, Taufik Roni, Mr.; Yasin, Verdi; Alfaris, Lulut; Ariefka, Reza; Siagian, Ruben Cornelius; Karim, Mohammad Alfin; Rahdiana, Nana; Suhara, Ade
Journal of Environmental Science and Sustainable Development Vol. 7, No. 2
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The relocation of Indonesia's capital city is anticipated to promote inclusive economic growth while embracing cultural diversity. However, this transition may affect ultraviolet (UV) radiation exposure patterns. The study investigated variations in UV exposure in the IKN region, focusing on urban development factors such as land use and population density that affect public health, sun protection, and skin cancer prevention. The research hypothesized that UV radiation is significantly correlated with these factors. UV Index data from 2010-2023, a hierarchical clustering method, identifies complex data patterns without determining the number of clusters. XGBoost, a machine learning model, was used for handling high-dimensional data and strong non-linear interactions, outperforming Random Forest in predicting Ultraviolet A variables. Analysis of variance (ANOVA) showed significant inter-group differences, which were validated by Tukey HSD post-hoc tests. Results showed that Cluster 4 was the region with the highest UV exposure. In contrast, Cluster 5 recorded the lowest, with exposure levels ranging from 6.61 to 15.82, a considerable difference of 9.21. The findings underscore the role of geographic and environmental factors in shaping UV exposure patterns, with implications for public health. Areas with high UV exposure face higher risks, including skin cancer and premature ageing. The predictive accuracy of the XGBoost model highlights its usefulness in addressing UV-related health risks. The study advocates for improved UV protection strategies and informed health policies to mitigate climate change impacts and promote sustainable urban development. The findings suggest that the development of data-driven early warning systems for UV radiation exposure could be implemented to improve public health policy and safety.
Pemanfaatan Teknologi Monitoring Kualitas Air pada Sektor Budidaya di Desa Cintakarya, Kabupaten Pangandaran: Penelitian Wahyudi, Andri; Muhammad Romdonul Hakim; Yuni Ari Wibowo; Lulut Alfaris; Afriana Kusdinar; Anas Noor Firdaus; Arif Baswantara; Kennedi Sembiring; Suhernalis
Jurnal Pengabdian Masyarakat dan Riset Pendidikan Vol. 4 No. 2 (2025): Jurnal Pengabdian Masyarakat dan Riset Pendidikan Volume 4 Nomor 2 (October 202
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jerkin.v4i2.3916

Abstract

Desa Cintakarya telah menjadi mitra Politeknik Kelautan dan Perikanan Pangandaran sejak 2021. Penelitian pengabdian ini bertujuan untuk meningkatkan kapasitas teknis pembudidaya dalam pemantauan kualitas air melalui penerapan teknologi monitoring serta mengevaluasi efektivitas pelatihan dan distribusi alat ukur. Metode pelaksanaan terdiri dari enam tahapan terstruktur meliputi perencanaan, survei lokasi, persiapan, penyampaian materi dan demonstrasi alat (pengukuran suhu dan TDS), monitoring lapangan, serta evaluasi akhir; pendekatan melibatkan pelatihan teknis, demonstrasi, kuisioner evaluatif, dan FGD. Hasil menunjukkan adanya peningkatan pemahaman praktis peserta terhadap penggunaan alat monitoring dan penerapan parameter kualitas air; penyerahan alat kepada Kelompok Pembudidaya Ikan Tirta Kahuripan memperkuat kapasitas operasional lapangan. Analisis kuisioner mengindikasikan 74% responden menilai kegiatan berhasil, 15% sangat berhasil, dan 11% netral. Observasi juga mengidentifikasi bahwa intervensi teknologi monitoring efektif untuk meningkatkan kapabilitas pembudidaya, namun keberlanjutan dampak memerlukan penguatan materi berbasis praktik dan peningkatan sarana pelatihan untuk mendukung adopsi teknologi secara luas.
Correlation Between Seismicity Rates and Earthquake Return Periods in the Southern Offshore of West Java, Indonesia Alfaris, Lulut; Wahyudi, Andri; Ginanjar, Martin Anjar; Nyuswantoro, Ukta Indra; Laeiq, Nazish
Geosfera: Jurnal Penelitian Geografi Vol 4, No 2 (2025): Geosfera : Jurnal Penelitian Geografi
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/geojpg.v4i2.36433

Abstract

The Indian Ocean region south of Java constitutes a highly active seismic zone dominated by the subduction of the Indo-Australian plate beneath the Eurasian plate. This study investigates the seismicity parameters (a-value and b-value) using the Gutenberg-Richter law and estimates the return periods of significant earthquakes. Analyzing earthquake catalog data covering a span of 53 years, we identified the Magnitude of Completeness (Mc) and calculated frequency-magnitude distributions. The results reveal a b-value of 1.17, indicating a region characterized by high material heterogeneity and complex stress release mechanisms. Furthermore, the probabilistic return period for a magnitude 6.5 earthquake is estimated to be approximately 19.24 years. These findings suggest that while the region exhibits frequent moderate-magnitude energy release, the potential for destructive tsunamigenic events remains significant, necessitating robust hazard mitigation strategies for the southern coast of Java.
Seasonal Variability of Surface Ocean Currents in the Southern Java Offshore based on Global Reanalysis Data Rahman, Abdul; Alfaris, Lulut; Wahyudi, Andri; Firdaus, Anas Noor; Nyuswantoro, Ukta Indra; Laeiq, Nazish
Geosfera: Jurnal Penelitian Geografi Vol 4, No 2 (2025): Geosfera : Jurnal Penelitian Geografi
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/geojpg.v4i2.37281

Abstract

Surface ocean currents are a key component of marine circulation systems and play an important role in controlling physical and ecological processes in Indonesian sea. The Southern Java sea, which are directly connected to the eastern Indian Ocean, are characterized by dynamic surface circulation influenced by large-scale oceanic processes and seasonal monsoonal forcing. This study investigates the patterns and characteristics of surface ocean currents in the Southern Java sea using global ocean reanalysis data visualized through the Earth Nullschool platform. Seasonal variability was examined using representative monthly maps corresponding to the major phases of the Asian and Australian monsoon system, including January (West Monsoon), April (first transition season), July (East Monsoon), and October (second transition season). A descriptive analytical approach was applied to identify spatial and temporal variations in surface current direction and relative intensity across both coastal and offshore areas. The analysis reveals distinct seasonal differences in surface current behavior. During the East Monsoon period, surface currents exhibit stronger intensity and a more consistent alongshore orientation, reflecting enhanced wind-driven circulation and offshore transport. In contrast, the West Monsoon and transitional seasons are marked by weaker currents and greater directional variability, particularly in nearshore sea. These findings indicate that monsoonal wind forcing, combined with large-scale Indian Ocean circulation, is the primary driver of surface current variability in the study area. This study highlights the usefulness of reanalysis-based visualization for regional-scale oceanographic assessments in areas with limited in-situ observations. The results provide baseline information that supports regional oceanographic research and offers practical insights for marine resource management, fisheries, navigation, and coastal planning in the Southern Java sea
Evaluating Global Oil Data Reporting Consistency and Stability with Insights from Indonesia Taufik Roni Sahroni; Lulut Alfaris; Siagian, Ruben Cornelius; Andri Wahyudi; Anas Noor Firdaus; Ukta Indra Nyuswantoro
Scientific Contributions Oil and Gas Vol 49 No 1 (2026)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.v49i1.2010

Abstract

Transparent and consistent oil data reporting is a critical component of global energy governance and market stability. This study evaluates the consistency, stability, and overall quality of global oil data reporting from 2002 to 2025 using the dataset of the Joint Organizations Data Initiative (JODI), with Indonesia employed as a regional reference case. The principal indicators applied include the Index of Reporting Consistency (IRC), the Reporting Volatility Index (RVI), and the Oil Data Availability Index (ODAI). Countries are classified according to market role (producer or importer), economic grouping, and geographical region. The analysis further incorporates K-means clustering and structural change detection to assess temporal stability and responsiveness to major global shocks. The findings reveal substantial variation in reporting performance across countries. Nations exhibiting high IRC values and low RVI scores generally possess more mature institutional and statistical capacities, whereas those with low IRC scores tend to face governance or data management constraints. Oil-producing countries typically demonstrate higher ODAI values but display greater vulnerability to systemic crises, while importing countries show relatively more stable reporting patterns. Major global shocks in 2008, 2014, 2020, and 2022 exerted asymmetric impacts on producers and importers, highlighting structural vulnerabilities within the global energy reporting system. Indonesia demonstrates consistently strong reporting performance, with an ODAI value of 0.944, exceeding the averages of ASEAN (0.889) and OPEC (0.829). The country records a non-reporting rate of only 5.6% and a maximum non-reporting duration of ten months. This study addresses a gap in long-term, shock-sensitive analyses and introduces an integrated framework combining IRC, RVI, and ODAI as a novel approach for assessing oil data reporting quality. The findings provide a foundation for strengthening institutional capacity, enhancing regional coordination, and developing crisis-resilient reporting systems, while positioning ODAI as a practical indicator for evaluating energy governance and policy transparency.
Co-Authors Abdul Rahman Afriana Kusdinar Aldi Cahya Muhammad Andri Wahyudi ANDRI WAHYUDI, ANDRI Ariefka, Reza Arif Baswantara Arip Nurahman Arip Nurahman Arip Nurahman Arip Nurahman Aunzo, Jr., Rodulfo T. Budiman Nasution Dolfie Paulus Pandara Eko Pramesti Sumarto Eko Pramesti Sumarto Firdaus, Anas Noor Froilan Delute Mobo Gendewa Tunas Rancak Gendewa Tunas Rancak Ghulab Nabi Ahmad Godwin Latuputty Goldbert Harmuda Duva Sinaga Hakim, Muhammad Romdonul Harahap, Veryyon Hareva, Batih Shendy Capri Hassan, Rohana Indah Indah Karim, Mohammad Alfin Kennedi Sembiring Laeiq, Nazish Martin Anjar Ginanjar Ma’muri Ma’muri Mia Endang Sari Sinaga Nasution, Habibi Azka Nazish Laeiq Nazish Laeiq Nunik Wijayanti Nurahman, Arip Nyuswantoro, Ukta Indra Nyuswantoro, Ukta Indra Nyuswantoro Pandara, Dolfie Paulus Prayitno, Muhammad Riyono Edi Putri, Miranda Putriara Tresa Fitira Rahdiana, Nana Raihan Natawisastra Rancak, Gendewa Tunas Rikha Bramawanto Rikha Bramawanto Riyanto, Raditya Danu Ruben Cornelius Siagian Ruben Cornelius Siagian Ruben Cornelius Siagian Ruben Cornelius Siagian Ruben Cornelius Siagian Ruben Cornelius Siagian Sahroni, Taufik Roni, Mr. Sembiring, Kennedi Siagian , Ruben Cornelius Siagian, Ruben Cornelius Suhara, Ade Suhernalis Suhernalis Suhernalis Suhernalis Suhernalis Taufik Roni Sahroni Ukta Indra Nyuswantoro Ukta Indra Nyuswantoro Ukta Indra Nyuswantoro Ukta Indra Nyuswantoro Ukta Indra Nyuswantoro Wanri Lumbanraja Wibowo, Yuni Ari winsyahputra Ritonga Winsyahputra Ritonga Yasin, Verdi