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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Spektra: Jurnal Fisika dan Aplikasinya Buletin Sumber Daya Geologi Indonesian Journal of Community Empowerment and Service Jurnal Fisika
Halauddin
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Electrical & Electronics Engineering Energy Engineering Environmental Science Materials Science & Nanotechnology Physics Social Sciences Other

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INVESTIGATION OF SUBSURFACE GROUNDWATER USING THE VES METHOD AROUND DENDAM LAKE, BENGKULU CITY, INDONESIA Maghribi, Faritz Bagda; Refrizon, Refrizon; Suhendra, Suhendra; Fadli, Darmawan Ikhlas; Halauddin; Idris, Beni Syakban; Johan, Henny; Putriani, Eli
Spektra: Jurnal Fisika dan Aplikasinya Vol. 8 No. 2 (2023): SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 8 Issue 2, August 2023
Publisher : Program Studi Fisika Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/SPEKTRA.082.04

Abstract

Concerns have been raised over the availability of water in the Dendam Lake neighborhood of Bengkulu City and the areas surrounding it. The location is characterized by a number of unsuccessful water wells. These issues are the direct and indirect results of the geological formations that are present in the region, specifically Aluvium (which consists of boulders, clasts, sand, silt, mud, and clay). A MAE X-612 EM resistivity meter was utilized in order to get a total of twenty Vertical Electric Sounding (VES) measurement points. Using the software programs Progress and Surfer, the data that was gathered was plotted on a two-log graph. The geoelectric layer and layer parameter maps that were made were prepared with the use of quantitative and qualitative interpretations. It was determined that there were between three and five geoelectric layers. It has been demonstrated that the resistivity of the subsurface shallow groundwater zone ranges from 10 to 20 Ωm at a depth of 4 to 15 meters. According to the findings of this research project, employing the VES geo-electrical exploration approach is likely capable of effectively outlining the subsurface and shallow groundwater. In addition, there is no information available regarding the precise depth of the groundwater table in the region. On the other hand, the underground groundwater at this location has a depth that is shallower than the norm.
Pemanfaatan Cocopeat dan Pasir Untuk Bertanam Sawi Pakcoy Dengan Media Tanam Box Kayu di Lahan Sempit Dilengkapi Penyiraman Model Sprinkle Sprayer Otomatis Bagi Kelompok PKK Melati Desa Talang Pauh Kelapa Bengkulu Tengah Halauddin; samdara, rida; Suhendra
Indonesian Journal of Community Empowerment and Service (ICOMES) Vol. 4 No. 2 (2024): December 2024
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/icomes.v4i2.37980

Abstract

This Community service activities have been carried out for the Science and Technology Faculty of Mathematics and Natural Sciences, Bengkulu University with the title: "Using Cocopeat and sand to plant Pakcoy mustard greens using wooden box planting media in narrow land equipped with automatic sprinkle sprayer model watering for the family welfare program Melati group, Talang Pauh Kelapa Village, Central Bengkulu". This science and technology service activity aims to provide additional knowledge to the family welfare program Melati Group to be able to cultivate Pakcoy mustard plants using Cocopeat and sand planting media in wooden boxes as well as installing and using a rotating garden model Sprinkler Sprayer watering tool to maintain the stability of the watering system so that it is even and watering system no longer conventional. From the results of the implementation of the science and technology service at the Faculty of Mathematics and Natural Sciences, Bengkulu University in 2024, the target audience, in this case the family welfare program Melati group, Talang Pauh Village, was able to cultivate Pakcoy mustard plants using Cocopeat and sand planting media in wooden boxes as well as installing and using a garden model Sprinkler Sprayer watering tool.
Penerapan Metode Geolistrik Tahanan Jenis Sebagai Upaya Mengatasi Kekeringan Di Areal Persawahan Sebagai Solusi Untuk Menentukan Posisi Dan Kedalaman Akuifer Di Desa Sumber Makmur Kecamatan Sukaraja Seluma Suhendra; Halauddin; Lidiawati, Liza; Lubis, Ashar Muda
Indonesian Journal of Community Empowerment and Service (ICOMES) Vol. 4 No. 2 (2024): December 2024
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/icomes.v4i2.39862

Abstract

Kegiatan pengabdian kepada masyarakat di Desa Suka Makmur, Kecamatan Sukaraja, Kabupaten Seluma, Provinsi Bengkulu, mengungkap keberadaan lapisan akuifer yang potensial. Akuifer di desa ini terletak pada kedalaman relatif dangkal karena berada di dataran rendah dekat pesisir. Pembuatan sumur bor dapat dilakukan pada titik antara 240 m hingga 480 m dari titik awal pengukuran dengan kedalaman sekitar 75 m. Tujuan dilaksanakan dan dipilihnya des aini karena sawah tadah hujan yang terdapat di desa ini cukup luas dan merupakan salah satu desa yang menjadi lumbung pertanian utamanya persawahan. Pada saat terjadi kemarau Panjang biasanya areal sawah yang terdapat di des aini sering gagal panen dikarenakan kekurangan akan air yang berasal dari air hujan. Untuk mengatasi hal tersebut khususnya permasalahan akan air untuk mengairi sawah tadah hujan tersebut maka akan diupayakan dengan cara membuat sumur bor yang nantinya berfungsi untuk dapat mengairi areal persawahan terutama pada saat kemarau. Struktur bawah permukaan menunjukkan adanya tanah gambut hingga kedalaman 2 - 2,5 m. Kehadiran lahan gambut ini menyebabkan air tidak tersimpan optimal di lapisan top soil selama musim kemarau, yang berdampak pada gagal panen padi dan tanaman lainnya. Ini menjadi salah satu faktor penting yang perlu diperhatikan untuk mendukung keberlanjutan pertanian di desa tersebut.
DELINEASI NILAI RESISTIVITAS DI LAPANGAN PANAS BUMI TAMBANG SAWAH MENGGUNAKAN METODE MAGNETOTELLURIK Al Ansory, Andre Rahmat; Hana Raihana; Pritama, Vinki Loverly; Saputri, Welly; Maghribi, Faritz Bagda; Muchammad Farid; Arif Ismul Hadi; Halauddin; Harlianto, Budi; Sugianto, Nanang
Buletin Sumber Daya Geologi Vol 18 No 3 (2023): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47599/bsdg.v18i3.386

Abstract

The subsurface structure of the geothermal field in Desa Tambang Sawah has been mapped. This research aims to delineate the resistivity values in the area of Tambang Sawah Village, Lebong Regency, Bengkulu Province based on magnetotelluric measurements which can later identify low, medium, and high resistivity values to interpret geothermal in the research area. The magnetotelluric (MT) method with electrical and magnetic sensors is used to collect data in the field. There are two electrical sensors in horizontal direction (Ex, Ey) and three magnetic sensors in horizontal direction. (Hx, Hy) and vertical (Hz). The results obtained from this study are that resistivity values of 20-50 ohm.m are considered as reservoirs, while resistivity of 0.26-0.8 ohm.m is considered as caprock, and resistivity greater than 300 ohm.m is considered as hot rock.
Magnetic Anomaly Model Interpretation of Geothermal Area in Air Putih Region, Lebong District, Bengkulu Province Gea, Jessica Agnes Soroinama; Refrizon; Halauddin; Purwanto, Eko Heru; Sari, Widya Kurnia; Rizki, Juni Putri
Jurnal Fisika Vol. 14 No. 2 (2024): Jurnal Fisika 14 (2) 2024
Publisher : Universitas Negeri Semarang

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

Abstract

Lebong Regency is located in the Sumatra Fault Zone, a relatively long dextral shear fault, causing unique structural and morphological changes around the fault zone. The Air Putih area, Lebong Regency, has geothermal manifestations in the form of hot springs that gush and flow from river banks and cliffs. In determining the subsurface structure model, magnetic anomalies were interpreted from direct measurements using two sets of Proton Precession Magnetometers (PPM) as the base and rover. The magnetic method was used to identify the subsurface structures displayed in a 2D model. The results of magnetic anomaly mapping in the study area show that 2D modelling can provide an overview of objects or rocks that cause anomalies at the study site. Based on subsurface modeling at the research site, four incisions were made, namely incisions A-A’ with a susceptibility contrast value of 0.516042 SI with hematite mineral type; in incisions B-B', it is suspected that is a mineral, namely gneiss with a susceptibility value of 0.164160 SI; incision C-C' has a susceptibility value of  0.172010 SI with gneiss rock type; and incision D-D' has a susceptibility value of 0.060604 SI, which is suspected to be a pyrite mineral. The rock types in the study area are mainly thought to be gneiss igneous rocks and the magnetic minerals quartz, pyrite, and calcite, which have different susceptibility values.
The Affect of Physical Parameters on Flood Potential in the Upstream River and the Musi Watershed of Kepahiang, Indonesia Supiyati; Elisa, Imania; Halauddin
Jurnal Penelitian Pendidikan IPA Vol 10 No 10 (2024): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i10.7442

Abstract

Fllod often occur if the rainfall is high, the flood-affected areas are downstream areas around the Musi Watershed of Kepahiang. The purpose of the study was to find out the characteristics of the physical parameters that affect the potential for flooding in the upstream river and the Musi Watershed. The method used are in situ measurement and laboratory analysis. The results of research, the characteristics of the river's physical parameters after the rain, the river flow discharge is 14.50 m3/s, floating sediment discharge 1.13 kg/s, bottom sediment discharge 43 x 10-4 kg/s, and total sediment discharge 113 x 10-2 kg/s. While the condition is not raining, the river flow discharge is 5.37 m3/s, the floating sediment discharge is 0.30 kg/s, the bottom sediment discharge is 32 x 10-4 kg/s, and the total sediment discharge is 30 x 10-2 kg/s. The dominant sediment texture is sand, clay and silt with a grain size of 1.4 mm - 600 µm. The river bathymetry has a lower elevation at the confluence of the Gegasan River and Lanang River which causes the river currents to reverse, if there is an increase in rainfall it will cause flooding in the area around the river.
Co-Authors Al Ansory, Andre Rahmat Arif Ismul Hadi Ashar Muda Lubis Elisa, Imania Fadli, Darmawan Ikhlas Gea, Jessica Agnes Soroinama Hana Raihana Harlianto, Budi Henny Johan Idris, Beni Syakban Lizalidiawati Lizalidiawati Maghribi, Faritz Bagda Muchammad Farid Nanang Sugianto Pritama, Vinki Loverly Purwanto, Eko Heru Putriani, Eli Refrizon Refrizon Refrizon Rida Samdara Rizki, Juni Putri Saputri, Welly Suhendra Suhendra Suhendra Supiyati . WIDYA KURNIA SARI, WIDYA KURNIA