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Andi Baso Sofyan A. P
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Program Studi Teknologi Geomatika Gedung G, Politeknik Pertanian Negeri Samarinda Jl. Samratulangi Samarinda
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Kota samarinda,
Kalimantan timur
INDONESIA
Journal of Geomatics Engineering, Technology, and Science
Published by Politeknik Pertanian Negeri Samarinda
ISSN : 28301811     EISSN : 2988523X     DOI : -
Core Subject : Science, Social, Engineering,
Aerospace Engineering Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Engineering Environmental Science
GETS: Journal of Geomatics, Technology, and Science published by Geomatics Technology Study Program, Department of Engineering and Informatics, Samarinda State Agricultural Polytechnic. The publication of the first edition in 2022, apart from being evidence of the increasing appreciation for self-development and contribution to the development of studies in geodesy and geomatics, also informs that this GETS Journal will be published regularly twice in a year, namely in March and September. We as managers also always make improvements and improvements so that this GETS Journal can be recognized nationally and internationally. In Volume 01 Number 01 September 2022, the GETS Journal presents a number of articles containing research articles related to the fields of Mapping, Geospatial Information, and also applications to website or mobile-based Geographic Information Systems. This first journal contains 5 (five) articles related to geodesy/geomatics engineering disciplines. Some of the articles that we have published in this edition are expected to contribute to the development of geodetic/geomatic engineering disciplines in Indonesia and in East Kalimantan in particular. The editors would like to thank the contributors and partners in this edition of the GETS Journal, some of whom have waited a long time for their articles to be published in the first edition in 2022. Once again, I hope that this journal will be useful for readers and will generate fresh and new ideas for developments in the field of surveying and mapping. The editors also expect input and submission of academic manuscripts and scientific writings that will enrich the repertoire of geodesy and geomatics studies
Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Ilmu Bumi dan Planet (Lain-Lain)
Articles 92 Documents
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Pemetaan Batimetri di Sungai Karang Mumus Kecamatan Samarinda Ilir Kota Samarinda Toni Surya Prayetno; Feri Fadlin; Suparjo Suparjo; Radik Khairil Insanu
Journal of Geomatics Engineering, Technology, and Science Vol. 5 No. 1 (2026): September 2026
Publisher : Geomatics Technology Study Program, Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/gets.v5i1.71

Abstract

The Karang Mumus River is a tributary of the Mahakam River flowing through Samarinda City, East Kalimantan, and plays an important role in the city's hydrological system as a waterway, a water source, and a floodway during the rainy season. Reliable information on the river's underwater topography is required to support navigation safety and flood-risk mitigation. This study aimed to map the topography and depth of the Karang Mumus riverbed, from Bridge 3 to the river mouth, and to present its longitudinal and cross-sectional profiles. Bathymetric sounding was carried out using a Garmin Map Sounder 585 Plus, arranged in five longitudinal survey lines at 10-m spacing and 66 cross-sectional lines at 25-m intervals, combined with a Comnav T300 geodetic GNSS receiver for riparian topographic measurement. Depth data were corrected against Mean Sea Level derived from 29 days of tidal observation using the Admiralty method, together with instantaneous tidal readings taken every 5 minutes during sounding, then processed in Microsoft Excel, AutoCAD Civil 3D, and ArcGIS. A total of 7,655 depth points were recorded over a survey area of 9.59 ha. The Mean Sea Level from the Admiralty analysis was 0.82 m, with a mixed, predominantly semidiurnal tidal type. Measured riverbed depths below Mean Sea Level ranged from 2.44 m at the shallowest reach (STA 0+150 - STA 0+175) to 32.92 m at the fish-auction port near the estuary, while the interpolated riverbed elevation model ranged from -2.15 m to -31.88 m. The resulting bathymetric, contour, longitudinal-section, and cross-section maps indicate the river remains navigable for small to medium vessels requiring a draft of 1.5-2 m, while highlighting shallow and narrow segments that warrant attention for safe navigation.
Analisis Sistem Cekungan Airtanah untuk Keperluan Irigasi Berdasarkan Data Geolistrik 1D di Desa Parbulu, Provinsi Maluku Stephany Franklyn Sihasale; Micky Kololu; Resti Limehuwey; Deny Juanda Puradimaja
Journal of Geomatics Engineering, Technology, and Science Vol. 5 No. 1 (2026): September 2026
Publisher : Geomatics Technology Study Program, Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/gets.v5i1.76

Abstract

Parbulu Village, Buru Regency, Maluku Province, is located within the Waepo Groundwater Basin and is underlain by Quaternary deposits developed in an alluvial environment. This geological setting includes sand and gravel that may serve as media for groundwater storage and movement, as well as clay with relatively low permeability that may act as a confining layer. This study aims to interpret the resistivity characteristics, lithology, depth, and thickness of subsurface layers and to identify indications of layers that may act as groundwater-bearing units based on Vertical Electrical Sounding (VES) using the Schlumberger configuration. Measurements were conducted at five sounding points, namely GL-01 to GL-05, with a maximum electrode spread of 400 m. The data were processed using IPI2WIN and PROGRESS v3.0, integrated with regional geological and hydrogeological conditions, and visualized using RockWorks 17 and Surfer. The interpretation results show resistivity values ranging from 1.08 to 8,969 Ωm, with interpreted materials consisting of clay, sandy clay, sand, sandy material, and gravel. Intervals interpreted as indications of groundwater-bearing layers are generally composed of sand and gravel, whereas clay layers are interpreted as relatively low-permeability confining layers. At GL-04, a sand interval at a depth of 5.56–15.70 m has a thickness of 10.14 m, while GL-05 contains a permeable-material interval at a depth of 54.65–97.64 m separated by a relatively thick clay layer. The three-dimensional model provides an interpretative visualization of subsurface variations based on interpolation between the five VES points and is not considered direct evidence of lateral continuity between sounding points. The results provide preliminary information on subsurface characteristics and indications of groundwater-bearing intervals that may support further hydrogeological investigations related to groundwater utilization for irrigation. Determination of groundwater discharge, quality, productivity, and sustainability requires further hydrogeological investigation.

Page 10 of 10 | Total Record : 92

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