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Journal Geological Processes, Risks, and Integrated Spatial Modeling
Published by Universitas Prisma
ISSN : -     EISSN : 30464935     DOI : -
Core Subject : Science, Social, Engineering,
Energy Engineering Environmental Science
"Journal Geological Processes, Risks, and Integrated Spatial Modeling" (Jurnal Proses Geologi, Risiko, dan Pemodelan Spasial Terintegrasi) E-ISSN 3046-4935. Topik ini melibatkan pemahaman tentang berbagai proses geologi, risiko yang terkait dengan proses geologi, serta penerapan teknik pemodelan spasial untuk memahami dan mengelola risiko sebagai upaya pembangunan berkelanjutan. Proses geologi mencakup berbagai fenomena dan peristiwa yang terjadi di dalam maupun permukaan Bumi, seperti pergerakan lempeng tektonik, erosi, sedimentasi, aktivitas vulkanik, dan sebagainya. Proses geologi dapat menjadi pertimbangan terhadap risiko geologis dan dapat menjadi rujukan data untuk mengetahui pengaruh geologi terhadap lingkungan, dan infrastruktur. Seperti gempa bumi, letusan gunung api, longsor, erosi pantai, banjir, dan pencemaran tanah dan air oleh bahan kimia. Perkembangan ilmu dan data mengenai berbagai jenis proses geologis, faktor-faktor yang mempengaruhinya, serta konsekuensi sosial, ekonomi, dan lingkungan yang terkait. Jurnal ini juga membahas mengenai Pemodelan spasial terintegrasi melibatkan penggunaan teknologi untuk memvisualisasikan dan menganalisis data geologi secara spasial. Identifikasi pola dan tren, pemodelan risiko, serta pengambilan keputusan dalam pengelolaan risiko geologis.
Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Geologi
Articles 28 Documents
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KAJIAN TOPOGRAPHIC WETNESS INDEX (TWI) UNTUK MENGETAHUI POTENSI BAHAYA BANJIR DI KOTA MANADO Budiharso, Agus Santoso; Momongan, Andrew J.
Journal Geological Processes, Risks, and Integrated Spatial Modeling Vol 1 No 01 (2023): Journal Geological Processes, Risks, and Integrated Spatial Modeling
Publisher : LPPM Universitas PRISMA

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Abstract

ABSTRACT Floods in Manado City from 2000 to 2023 have continued to expand, in line with the increasing population and infrastructure development. To address future flood occurrences, it is necessary to conduct research on various flood causes, including rainfall, topographical factors, urban hydrological/drainage conditions, and others. This study employs the Topographic Wetness Index (TWI) approach, aided by Geographic Information System (GIS) analysis. The research results in the distribution of TWI, where high TWI values indicate areas with high soil moisture and a greater potential for surface water flow during rainfall, making them vulnerable to flooding. The overlay results of TWI in the high category with all flood-affected areas from 2011 to 2023 indicate that approximately 64.51% of them have high TWI values. Similarly, the overlay between buildings and TWI shows that 70,414 buildings are located in high TWI areas. Therefore, the research findings indicate a strong correlation between high TWI values and areas susceptible to flooding. High TWI values indicate high soil moisture and a greater potential for surface water flow during rainfall. Keywords: Manado City Flood, Topographic Wetness Index, Geographic Information System.
POTENSI GEOWISATA DAERAH KECAMATAN RATATOTOK DAN SEKITARNYA MELALUI ANALISIS GEOSITE DAN GEOMORPHOSITE Momongan, Andrew
Journal Geological Processes, Risks, and Integrated Spatial Modeling Vol 1 No 01 (2023): Journal Geological Processes, Risks, and Integrated Spatial Modeling
Publisher : LPPM Universitas PRISMA

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Abstract

The Ratatotok area and its surroundings have attractive geotourism potential which includes plains and coastal elements. Morphologically, this area has varied landscapes ranging from lava flowing hills, karst hills, alluvial plains, headlands and bays, geological structure control areas to coral reef exposure in shallow seas. Researchers assessed the feasibility of development using the initial approach of geosite and geomorphosite analysis. Five geosite and geomorphosite locations were found in the study area including Tanjung Mangkit, Gamping Ratatotok Cave, Megawati Soekarno Putri Botanical Garden area, Tanjung Buyat–Lakban, and Lake Buyat. The feasibility assessment results show the value of the five geotourism prospect locations sequentially, namely 59.5%, 50%, 70.3%, 60% and 58%. From the research results, the reclamation area for the Megawati Soekarno Putri Botanical Garden is very feasible to be developed into a geotourism object, as well as Tanjung Buyat–Lakban which is categorized as feasible for development, while the other three locations still need to develop main and supporting infrastructure. The development of an integrated geotourism area can help develop geotourism potential and increase people's welfare through the ecotourism sector.
TINGKAT PERGERAKAN TANAH DI KELURAHAN TINOOR 1 DAN TINOOR 2, KECAMATAN TOMOHON UTARA, KOTA TOMOHON Zwingly Rivaldo Paat
Journal Geological Processes, Risks, and Integrated Spatial Modeling Vol 1 No 01 (2023): Journal Geological Processes, Risks, and Integrated Spatial Modeling
Publisher : LPPM Universitas PRISMA

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Penelitian ini bertujuan untuk mengetahui kondisi geologi, tingkat kerawanan pergerakan tanah serta upaya mitigasi bencana. Penelitian ini dilakukan di Kelurahan Tinoor 1 dan Tinoor 2 atas dasar pertimbangan bahwa di daerah tersebut sering terjadi bencana alam seperti pergerakan tanah. Metode pengumpulan data yang dilakukan pada daerah penelitian ini adalah analisis spasial scoring dan analisis deskripsi yang dihitung berdasarkan acuan permen PU No. 22/PRT/M/2007. Dengan parameter aspek fisik alami berupa kemiringan lereng, kondisi tanah, batuan penyusun lereng, curah hujan, tata air lereng, kegempaan dan vegetasi, yang digunakan untuk perhitungan indeks scoring. Kondisi geologi pada daerah penelitian terusun dari batuan dengan litologi batuan gunung api muda dengan sebaran batuan basalt dan andesit, geomorfologi daerah penelitian ini masuk pada satuan bentuk lahan Pegunungan Vulkanik. Tingkat kerawanan pergerakan tanah pada daerah penelitian berada pada zona tipe B dengan tingkat kerawanan sedang.
PENILAIAN KERENTANAN AIR TANAH TERHADAP PENCEMARAN MENGGUNAKAN METODE AVI PADA CEKUNGAN AIR TANAH KARANGANYAR-BOYOLALI Kurnia Dewi Mulyani
Journal Geological Processes, Risks, and Integrated Spatial Modeling Vol 1 No 01 (2023): Journal Geological Processes, Risks, and Integrated Spatial Modeling
Publisher : LPPM Universitas PRISMA

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Tingginya jumlah industri merupakan salah satu penyebab terjadinya pencemaran air tanah. Oleh karena itu perlu dilakukan perlindungan air tanah, salah satu upaya perlindungan air tanah adalah melakukan penilaian kerentanan air tanah. Lokasi penelitian berada pada Cekungan Air Tanah (CAT) Karanganyar-Boyolali merupakan cekungan air tanah yang mencakup 7 Kabupaten 1 Kota yang terdiri dari Kabupaten Boyolali, Klaten, Sukoharjo, Wonogiri, Semarang, Sragen, Karanganyar, dan Kota Surakarta. Data yang digunakan dalam penelitian adalah data data bor, data geolistrik, dan data konduktivitas hidraulis. Metode AVI (Aquifer Vulnerability Index) merupakan salah satu metode yang dapat dilakukan untuk penilaian kerentanan dengan mempertimbangkan kondisi geologi berupa tebal jenis batuan dan nilai konduktivitas atau kemampuan batuan dalam mengalirkan air tanah dari batuan penutup akuifer. Hasil penelitian menunjukkan bahwa tingkat kerentanan air tanah terhadap pencemaran memiliki rentang sangat rendah, rendah, menengah, tinggi, dan sangat tinggi
GEOMORFOLOGI DAERAH ERPAK DAN SEKITARNYA KECAMATAN RATATOTOK Novprisca A. Tewu
Journal Geological Processes, Risks, and Integrated Spatial Modeling Vol 1 No 01 (2023): Journal Geological Processes, Risks, and Integrated Spatial Modeling
Publisher : LPPM Universitas PRISMA

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Daerah penelitian berada di Kecamatan Ratatotok, Kabupaten Minahasa Tenggara, Provinsi Sulawesi Utara. Secara geografis berada pada 51 N 688060 E 96783 N. Geomorfologi daerah penelitian sebagian besar terdiri dari perbukitan. Pemetaan geomorfologi ini bertujuan untuk memetakan keadaan geomorfologi daerah penelitian dengan interpretasi peta topografi dan pendekatan langsung lapangan. Beberapa metode yang dilakukan meliputi aspek geomorfologi, berupa morfografi, morfometri dan morfogenetik, interpretasi pola pengeliran. Hasil penelitian berupa peta geomorfologi. Pola pengaliran sungai pada daerah penelitian adalah dendritik, stadia sungai u dan stadia geomorfik tahapan dewasa. Secara umum, daerah penelitian terdiri dari beberapa satuan geomorfologi berupa: satuan geomorfologi perbukitan intrusi, satuan geomorfologi perbukitan denunasional dan satuan geomorfologi dataran aluvial.
SEBARAN MUKA AIR TANAH DAERAH GAMPONG REULEUT, KECAMATAN MUARA BATU, KABUPATEN ACEH UTARA, PROVINSI NANGGROE ACEH DARUSALAM Aditya Priyo Utomo
Journal Geological Processes, Risks, and Integrated Spatial Modeling Vol 1 No 01 (2023): Journal Geological Processes, Risks, and Integrated Spatial Modeling
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Gampong Reuleut merupakan salah satu wilayah di Kabupaten Aceh Utara yang sedang mengalami pertumbuhan. Belum tercukupinya pasokan air dari PDAM membuat air tanah menjadi sumber pasokan utama warga dalam memenuhi kebutuhan air bersih. Pemanfaatan air tanah dalam jangka waktu panjang akan mempengaruhi terhadap keberadaan air tanah, karena itu perlu adanya kajian mengenai kondisi geologi dan sebaran air tanah pada daerah Gampong Reuleut. Metode yang digunakan dalam penentuan kondisi geologi pada daerah penelitian dengan pemetaan dan pengukuran langsung di lapangan, sedangkan untuk mengetahui sebaran muka air tanah padalokasi penelitian metode pengumpulan data berupa pengukuran kedalaman muka air tanah yang diukur pada sumur gali masyarakat. Jenis lithologi yang dijumpai pada Gampong Reuleut adalah pasir lempungan hingga lempung yang merupakan lapisan akitar bersifat sukar meloloskan air, Ketinggian muka air tanah daerah Gampong Reuleut berkisar 3 hingga 11.5 mdpl dengan arah aliran air tanah selatan menuju utara.
STUDI GEOLOGI DENGAN KAJIAN KONDISI HIDROGEOLOGI DI KECAMATAN AIRMADIDI, KABUPATEN MINAHASA UTARA, PROVINSI SULAWESI UTARA Kaunang, J. J.; Momongan, A. J.; Budiharso, A. S.
Journal Geological Processes, Risks, and Integrated Spatial Modeling Vol 1 No 2 (2023): JGPRISM: Journal Geological Processes, Risks and Integrated Spatial Modeling
Publisher : LPPM Universitas PRISMA

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Groundwater is water content that accumulates in rock strata below the surface. Ground water is stored in the gaps between rock grains and cracks in the rock layer which will then be called an aquifer. The water contentstored and transported by spaces between grains, rock cavities, and cracks in rock. Groundwater can flow either vertically or lateral depending on the morphological, hydrological and geological conditions. The aim of this research is to determine the condition geology in Airmadidi District, North Minahasa Regency, North Sulawesi Province, and knowing the hydrogeological conditions. This research was carried out using qualitative analysis methods to determine geological and hydrogeological conditions. Using data from literature studies, analysis of each aspect, and observations in the field. From this research, 3 units were found lithology, namely the Tondano Pyroclastic unit, the Mount Klabat Pyroclastic unit, and the Mount Klabat Lava Flow unit, based on data It was concluded that the hydrogeological conditions in Airmadidi District, North Minahasa Regency, North Sulawesi Province using a tentative model to visualize subsurface conditions that have high groundwater productivity.
TEKTONIK GEOMORFOLOGI SESAR-SESAR YANG DIDUGA AKTIF DI DAERAH HILIR SUNGAI BONE, GORONTALO Masulili, F.; Djaya, A. E. P.; Walukow, J. L.; Bolung, R. Y.; Gafur, N. A.
Journal Geological Processes, Risks, and Integrated Spatial Modeling Vol 1 No 2 (2023): JGPRISM: Journal Geological Processes, Risks and Integrated Spatial Modeling
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The downstream area of ​​the Bone River is the center of government, economy and settlement in Gorontalo Province. This area is located in the North Arm of Sulawesi which is tectonically and seismically active and is directly influenced by the Sangihe Tunjaman in the eastern partand Tunjaman Sulawesi in the north. However, information regarding active faults in disaster mitigation efforts is still very minimal. For the first time, we have mapped active faults around the lower reaches of the Bone River based on morphometric interpretation protection index red relief image map (MPI-RRIM). The Pancuran normal fault and the Bondawuna normal fault on the south side show this evidence of Quaternary activity, compared to the normal Lombongo fault on the north side. Based on the empirical relationship between moment magnitude and length of surface cracks, these faults have the potential to produce earthquakes of 6.3 ~ 6.7 Mw. Besides Therefore, our research found that the flood disasters that often hit this area are not only influenced by climate and urbanization, but also controlled by tectonic activity. Understanding active cesarean delivery is very important in improving education community related to disasters, and also as basic information in regional development planning.
ANALISIS TINGKAT KERAWANAN LONGSOR MENGGUNAKAN SISTEM INFORMASI GEOGRAFIS (SIG) PADA KECAMATAN TOMOHON BARAT DAN UTARA KOTA TOMOHON PROVINSI SULAWESI UTARA Luntungan, P. B. G.; Rachmadhan, H.D.; Tandipajung, J.
Journal Geological Processes, Risks, and Integrated Spatial Modeling Vol 1 No 2 (2023): JGPRISM: Journal Geological Processes, Risks and Integrated Spatial Modeling
Publisher : LPPM Universitas PRISMA

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Natural disasters are natural events that can occur anywhere and at any time, causing material and material losses immaterial to people's lives. Landslides are one of the natural disasters that generally occur in mountainous areas, especially in the rainy season. West and North Tomohon sub-districts are areas that have the potential to experience landslides because the morphology of North and West Tomohon District varies, such as highlands, mountains and hills. One of The way that can be applied to estimate landslide disasters is to use an application that is able to take inventory affected locations, namely geographic information systems that have the ability to store, process, analyze andpresents geographically referenced data. In this research, soil vulnerability analysis was carried out using the weighting method and Scoring. The creation of this landslide susceptibility map is the result of overlaying secondary data such as DEM, cover maps land, rainfall data, regional geological maps, and soil type maps. Determining the level of landslide vulnerability is carried out by: multiplying the score by the weight for each parameter and then adding up the results for age. The value is classified into 4 landslide-prone zones, namely low, medium, high and very high. This research produces a landslide prone zoning map divided into 3 classes of vulnerability, namely medium class in Woloan Village, high class in Kaskakasen and Kayawu Village and Very high class in Taratara and Kinilow Villages. Based on five factors that influence landslide disasters, bulk factors Rain has the highest score which is the most dominant factor in influencing the occurrence of landslides. ResultsIt is hoped that the research carried out can be used as basic information for disaster mitigation, andregional development
KONDISI HIDROGEOLOGI DAERAH BUMBUNGON, KECAMATAN DUMOGA, KABUPATEN BOLAANG MONGONDOW, PROVINSI SULAWESI UTARA Jufri, S. F. T.; Utomo, A. P.
Journal Geological Processes, Risks, and Integrated Spatial Modeling Vol 1 No 2 (2023): JGPRISM: Journal Geological Processes, Risks and Integrated Spatial Modeling
Publisher : LPPM Universitas PRISMA

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Abstract

Water is a transparent substance in the form of a liquid that forms rivers, lakes, seas and rain and is the main element in human life. Without water, various life processes for animals, plants and humans would not be possible taking place. This research aims to determine the geological and hydrogeological conditions in the Bumbungon area, District Dumoga, Bolaang Mongondow Regency, North Sulawesi Province. Next, researchers observed the well distribution points forused in making well distribution maps. The well distribution points are made into a map of the distribution of ground water levels (MAT) with the Inverse Distance Weighted (IDW) method. In this research, subsurface data analysis was also used to determine subsurface geology. The groundwater level is calculated based on the land surface elevation minus the value with the depth of the ground water table. The direction of groundwater flow can be determined from the groundwater level contour. Result of MAT measurements at 25 well points in the research area were 0.9 - 6.8 meters. Therefore, groundwater flows in regional areas research flows southwest, east, and southeast. From the results of correlation of subsurface data in the research area has 2 types of groundwater aquifer systems, namely free groundwater with a depth of up to (0-6) meters and groundwater aquifer systems depressed, with a depth of up to (20-30) meters below the surface. The recharge area in the research area is located at the northwest and southeast areas of the research area and the discharge area or discharge area is in the middle of the research area, namely on (Dumoga River), and has a local groundwater flow system.

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