cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Muh. Altin Massinai
Contact Email
geocelebes@sci.unhas.ac.id
Phone
-
Journal Mail Official
geocelebes@sci.unhas.ac.id
Editorial Address
Departemen Geofisika, Fakultas Matematika dan Ilmu Pengetahuan Alam - Universitas Hasanuddin, Gedung MIPA, Kampus Unhas Tamalanrea - Jalan Perintis Kemerdekaan, Makassar - Sulawesi Selatan 90245
Location
Kota makassar,
Sulawesi selatan
INDONESIA
Jurnal Geocelebes
Published by Universitas Hasanuddin
ISSN : 25795821     EISSN : 25795546     DOI : https://doi.org/10.20956/geocelebes.vxix.xxxxx
Core Subject : Science,
Earth & Planetary Sciences
Jurnal Geocelebes adalah jurnal peer-review yang dipublikasikan oleh Departemen Geofisika Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Hasanuddin. Jurnal ini terbit dua kali dalam setahun pada bulan April dan Oktober. Jurnal ini diperuntukkan sebagai sarana publikasi ilmiah di bidang geofisika baik teoritik maupun terapan. Artikel yang dimuat merupakan hasil penelitian yang orisinal, tinjauan (review) tentang kemajuan terkini dari suatu topik tertentu, studi kasus aplikasi geofisika atau pun resensi tentang perangkat lunak yang berkaitan dengan geofisika. Fokus dan cakupan topik yang dimuat dalam Jurnal Geocelebes: Geofisika eksplorasi Seismologi Vulkanologi Geofisika lingkungan Hidrometeorologi Oseanografi Dinamika pantai dan lautan Geoinformatika Mitigasi bencana geologi
Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Geofisika
Articles 143 Documents
 11   12   13   14   15 
Analysis of Flood Vulnerability and Rainfall Changes in the Angke-Pesanggrahan Watershed using Spatial Mapping Fitria, Ratu Kenanga; Ruhiat, Yayat; Oktarisa, Yuvita
JURNAL GEOCELEBES Vol. 10 No. 1: April 2026
Publisher : Departemen Geofisika, FMIPA - Universitas Hasanuddin, Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70561/geocelebes.v10i1.48347

Abstract

This study analyzes flood vulnerability in the Angke-Pesanggrahan Watershed, Jakarta, which faces increased risks due to land-use changes. The study aims to calculate the 50-year return period flood discharge, map flood-prone zones, and formulate mitigation recommendations using spatial mapping. A quantitative approach was employed, analyzing 15 years of rainfall data from five stations. Methodology included data consistency testing, Spearman’s correlation, stationarity, and outlier identification, followed by regional rainfall analysis using Thiessen Polygons. The Log Pearson Type III distribution was applied for frequency analysis, and the Nakayasu Synthetic Unit Hydrograph method estimated flood discharge. Flood-prone zones were mapped using scoring and overlay techniques in a Geographic Information System (GIS). Results show that the 50-year flood discharge reaches 1.128 m3/s, exceeding existing river capacity. Mapping simulations identified flood depths of 3–6 meters in downstream areas, with high-risk zones concentrated in Northern Kembangan, Kedaung Kali Angke, Kapuk Muara, Kamal Muara, Eastern Cengkareng, and Northern Kedoya, where surface runoff contributes up to 90%. Spatial analysis categorized 257.18 km2 as non-prone, 92.14 km2 as moderately prone, 75.75 km2 as prone, and 58.57 km2 as highly prone. This study concludes that the Angke-Pesanggrahan Watershed, particularly the Cengkareng Drain section, requires urgent technical intervention, including river normalization and catchment area optimization. These findings provide a crucial spatial database for sustainable flood mitigation and risk-based decision-making in urban planning.
Identification of Magma Intrusion Distribution in the Sekincau Mountain Area Based on the Euler Deconvolution Method of Gravity Data: Application of Gravity-Based Euler Deconvolution for Intrusive Mapping Amanda, Anisa; Agustian, Rizki Buana; Fista, Aksela Dian; Dani, Ilham
JURNAL GEOCELEBES Vol. 10 No. 1: April 2026
Publisher : Departemen Geofisika, FMIPA - Universitas Hasanuddin, Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70561/geocelebes.v10i1.49005

Abstract

Mount Sekincau, West Lampung, is located within the active Bukit Barisan tectonic zone and exhibits geothermal potential controlled by magmatic activity and geological structures. This study aims to identify the distribution and depth of magmatic intrusions using gravity data analysis and Euler deconvolution. GGMPlus satellite gravity data were processed to generate Complete Bouguer Anomaly, regional and residual anomalies, analytical signal, Euler solutions, and three-dimensional models. The Complete Bouguer Anomaly values range from 38.05 to 58.32 mGal, with high anomalies concentrated in the central part of the study area. Positive residual anomalies ranging from 0.88 to 2.78 mGal indicate the presence of shallow high-density bodies interpreted as magmatic intrusions. Analytical signal and Euler deconvolution results with a structural index of 0 reveal clusters of shallow sources associated with fault zones. Three-dimensional modeling confirms a southeastward-oriented intrusive body. These results indicate that shallow magmatic intrusions act as the primary heat source of the Sekincau geothermal system.
Surface Ocean Current Variability Near Selayar Island During the Three El Niño-Southern Oscillation (ENSO) Phases Andika, Andika; Warouw, Gladiva
JURNAL GEOCELEBES Vol. 10 No. 1: April 2026
Publisher : Departemen Geofisika, FMIPA - Universitas Hasanuddin, Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70561/geocelebes.v10i1.49626

Abstract

This study investigates the seasonal and interannual variability of surface ocean currents around Selayar Island, Indonesia, with a focus on differences among the three phases of the El Niño–Southern Oscillation (ENSO). Monthly surface current data from 1993 to 2020 were analyzed using climatological, composite, and anomaly approaches. The results reveal a spatially heterogeneous current structure that is dominated by seasonal variability, with domain-averaged current magnitudes ranging from approximately 0.085–0.305 ms-1. Interannual variability related to ENSO is evident mainly in the magnitude of surface current anomalies, which range approximately 0.03–0.05 ms-1 during El Niño and increase to about 0.07–0.09 ms-1 during La Niña, with peak values reaching ~0.10–0.12 ms-1. This indicates that ENSO primarily modulates current intensity rather than flow direction. Differences in anomaly direction are more pronounced under Neutral conditions, where anomaly patterns differ from those observed during both El Niño and La Niña phases. Overall, the results indicate that ENSO acts as an interannual modulation of surface currents, while monsoonal forcing remains the primary control on surface current dynamics in the study region.

Page 15 of 15 | Total Record : 143

 11   12   13   14   15 

Filter by Year

2017 2026


Reset
Filter By Issues
All Issue Vol. 10 No. 1: April 2026 Vol. 9 No. 2: October 2025 Vol. 9 No. 1: April 2025 Vol. 8 No. 2: October 2024 Vol. 8 No. 1: April 2024 Vol. 7 No. 2: October 2023 Vol. 7 No. 1: April 2023 Vol. 6 No. 2: October 2022 Vol. 6 No. 1: April 2022 Vol. 5 No. 2: October 2021 Vol. 5 No. 1: April 2021 Vol. 4 No. 2: October 2020 Vol. 4 No. 1: April 2020 Vol. 3 No. 2: October 2019 Vol. 3 No. 1: April 2019 Vol. 2 No. 2: Oktober 2018 Vol. 2 No. 1: April 2018 Vol. 1 No. 2: Oktober 2017 Vol. 1 No. 1: April 2017 More Issue