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All Journal Jurnal Ilmu Lingkungan Jurnal Fisika dan Terapannya Jurnal Natural Jurnal Pengabdian Papua JURNAL FISIKA PAPUA EBAMUKAI; JURNAL PENGABDIAN ILMU PENGETAHUAN DAN TEKNOLOGI
Zakaria Victor Kareth
Jurusan Fisika, Fakultas MIPA, Universitas Cenderawasih
Agriculture, Biological Sciences & Forestry Humanities Chemistry Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Environmental Science Languange, Linguistic, Communication & Media Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Other

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Journal : JURNAL FISIKA PAPUA

 1 
Analisis Struktur Lapisan Bawah Permukaan Untuk Pembangunan Dermaga Menggunakan Metode Geolistrik Di Kampung Abar, Distrik Ebungfauw, Kabupaten Jayapura Lily H Nengkey; Yusuf Bungkang; Zakaria V. Kareth
Jurnal Fisika Papua Vol. 1 No. 2 (2022): Jurnal Fisika Papua
Publisher : Universitas Cenderawasih

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31957/jfp.v1i2.11

Abstract

Kampung Abar Distrik Ebungfauw terdapat sebuah dermaga yang dibuat oleh masyarakat setempat sebagai penghubung antar kampung lainnya. namun dermaga tersebut sudah sangat tua hingga harus dibuat dermaga yang baru, oleh sebab itu perlu dilakukannya survey struktur bawah permukaan. Penelitian ini bertujuan untuk menginformasikan kepada masyarakat setempat keadaan struktur bawah permukaan tanah agar bisa dilakukannya pengeboran untuk melakukan penanaman tiang pancang baru buat dermaga. Metode penelitian yang akan digunakan adalah metode geolistrik tahanan jenis konfigurasi schlumberger untuk survey bawah permukaan secara vertikal dan akan dikorelasi dengan hasil dari data metode boring. Penelitian akan dilakukan di Kampung Abar Distrik Ebungfauw, dengan pengambilan data sebanyak 2 (dua) titik survey. Instrumen yang digunakan adalah ResistivityMeter yang dilengkapi dengan dua pasang elektroda arus dan potensial. Hasil penggolahan data akan berupa penampang struktur lapisan secara vertikal yang menunjukan keadaan sturktur bawah permukaan. Pada penelitian ini didapatkan bahwa struktur bawah permukaan Dermaga Kampung Abar didominasi oleh lapisan yang terdiri dari material lempung bercampur pasir padat dengan nilai resistivitas 1917 hingga 38494 m. Selain itu, terdapat lapisan batuan keras berupa kerikil bercampur lumpur dengan nilai resistivitas 6,1 sampai dengan 1,248 m. direkomendasikan untuk kedalaman pondasi pada titik 6 sampai 15 meter, dan hasil data metode pemboran dibor sedalam 10 meter.
Estimasi Kedalaman Batuan Dasar di Kampung Yabaso Kabupaten Jayapura Menggunakan Metode Vertical Electrical Sounding Konfigurasi Schlumberger dan Metode HVSR Asmuruf, Andy Amus Saul; Baru, Netty Y.; Kareth, Zakaria Victor
Jurnal Fisika Papua Vol. 2 No. 2 (2023): Jurnal Fisika Papua
Publisher : Universitas Cenderawasih

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31957/jfp.v2i2.49

Abstract

Research on the estimation of bedrock depth in Yabaso village, Jayapura district using the Schlumberger configuration Vertical Electrical Sounding (VES) method and the HVSR method has been carried out. The total observation points are three points where VES is one point and VHSR are two observation points. VES measurements used a set of resistivity meter model AK HV 500 with a maximum spread length of the current electrode is 100 m. HVSR measurements use a portable seismograph set and the measurement time for ambient seismic waves is 60 minutes. VES and HVSR data processing respectively using IPI2Win and Geopsy software. The model parameters resulting from the inversion of the VES data show that there are nine layers with a resistivity range between 18 – 25,260 Ωm. Layer 1 is a heap of sandy gravel with a resistivity value of 92 Ωm. Layers 2 to 7 are part of alluvium formations and coastal deposits (Qa) with resistivity values of 18 – 264 Ωm. While layers 8 and 9 are fragments of weathered ultramafic rock (um) and compact and dry ultramafic rock respectively. The source rock (bedrock) is layer 9 which is at a depth of 42 m. The results of HVSR data processing show that the natural frequencies at the two observation points are very small (<2.5 Hz), namely 0.85 Hz and 0.83 Hz. According to Kanai's classification, this frequency value is type I, class IV, namely alluvial rock. The depths of source rock based on the HVSR method at measurement points 1 and 2 are 43 m and 44 m, respectively. There is agreement in the estimation of the depth of the source rock obtained from the VES and HVSR methods even though the two methods utilize two different physical parameters. Keywords: HVSR; VES configuration Schlumberger; Resistivity; Jayapura
Penentuan Jalur Evakuasi Tsunami Dan Tempat Evakuasi Sementara (Tes) Di Kawasan Pesisir Distrik Muara Tami Kota Jayapura Handayani, Ragil Tri; Kareth, Zakaria Victor; Baru, Netty Yufita
Jurnal Fisika Papua Vol. 2 No. 2 (2023): Jurnal Fisika Papua
Publisher : Universitas Cenderawasih

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31957/jfp.v2i2.85

Abstract

Tsunami merupakan bencana yang tidak dapat diprediksi waktu kemunculannya, namun jika terjadi dapat menimbulkan kerusakan dan dampak yang besar. Oleh sebab itu diperlukan TES untuk digunakan sebagai tempat evakuasi sementara apabila terjadi bencana seperti tsunami. Penentuan jalur dan tempat evakuasi sementara dilakukan dengan menggunakan metode Kuantitafif dengan wawancara dan kuisioner terhadap responden untuk menganalisis data agar terukur. Serta menggunakan metode Kualitatif yaitu berupa data sekuder pengolahan gempabumi dan data history tsunami di Papua untuk menentukan peta ancaman tsunami di wilayah penelitian Hasil dari penelitian adalah tempat yang bisa dijadikan tempat evakuasi memiliki jarak serta waktu yang kurang efisien oleh karena itu diperlukan selter vertikal di area dekat pantai. Dan Semakin tinggi gelombang tsunaminya maka selter yang diperlukan juga semakin tinggi.
Simple Python-Based Application for Transforming Apparent Resistivity Data from Schlumberger Configuration to Wenner Configuration Using the Linear Filter Method Kareth, Zakaria Victor; Bowaire , Anike Nelce; Haselo, Linus
Jurnal Fisika Papua Vol. 3 No. 2 (2024): Jurnal Fisika Papua
Publisher : Universitas Cenderawasih

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31957/jfp.v3i2.203

Abstract

Research has been conducted regarding the design of a simple Python-based application to transform apparent resistivity values ​​from the Schlumberger configuration into apparent resistivity values ​​from the Wenner configuration using the linear filter method. The application developed was then validated using field data measurements from two different locations, namely Nendali Village in the East Sentani district and Buper Waena in the Heram Jayapura district. At each measurement point, two Vertical Electrical Sounding (VES) measurements were performed using Schlumberger and Wenner configurations. The apparent resistivity values ​​from the Schlumberger configuration were transformed using the application created, and the results were compared with observational data from the Wenner configuration. Field data were taken for as many as six samples per logarithmic cycle, with the Schlumberger AB/2 configuration electrode spacing equal to the Wenner configuration electrode spacing. The maximum stretch lengths in Nendali and Buper villages were 26 m and 40 m, respectively. The research results show a match between the apparent resistivity values ​​of the Wenner configuration obtained from field observations and the transformation results. This suitability was demonstrated qualitatively through the similarity of the apparent resistivity curve trend between the transformed and field observation data. Quantitatively, this suitability is shown by the slope value of the comparison curve of field observation data and transformed data, which in Nendali and Buper Villages is 0.75 and 0.98, respectively. The conclusion of this study is that a simple application that has been designed and created can be used to transform apparent resistivity values ​​from the Schlumberger configuration to the Wenner configuration. A comparison between the transformed data and field observation data shows that suitability is highly dependent on the quality of the field data.
Groundwater Aquifer Analysis Using the Schlumberger Configuration Vertical Electrical Sounding Resistivity Method with Dar Zarrouk Parameters in the Komplek Perkantoran Gunung Merah Sentani Kareth, Zakaria Victor; Flassy, Reinhard V.
Jurnal Fisika Papua Vol. 4 No. 1 (2025): Jurnal Fisika Papua
Publisher : Universitas Cenderawasih

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31957/jfp.v4i1.214

Abstract

A study has been conducted using the Vertical Electrical Sounding (VES) method of Schlumberger configuration and Dar Zarrouk parameters which aims to determine the range of resistivity values of the subsurface layer, the depth of the groundwater aquifer layer, the thickness of the water aquifer layer and the range of Dar Zarrouk parameter values at the research site. The research location is in the office complex of Gunung Merah Sentani, Jayapura Regency as many as four sounding points with a maximum length of 175-300 meters. The results of this research show that the VES 1 point has two aquifer layers with a depth range of 4 - 7 meters and 14-31 meters. which is a fragment of Gneiss rock containing sand, gravel and clay. The resistivity values ​​of each aquifer layer are 26-45 Ωm and 16 Ωm respectively. At VES point 2, the inversion model parameters show that there are three aquifer layers in the depth range of 2 - 4 meters, 7 - 13 meters and 30 - 91 meters. And the resistivity values ​​of each aquifer are 6, 13 and 35 Ωm. At VES point 3, the inversion model parameters show that there are two aquifer layers in the depth range of 5 - 16 meters and 25 - 66 meters with resistivity values ​​for each aquifer layer of 15 and 22 Ωm respectively. At VES point 4, the inversion model parameters show that there are two aquifer layers in the depth range of 3 - 5 meters and 7 - 20 meters with the resistivity values ​​for each aquifer layer being 24 and 7 Ωm respectively.
Co-Authors Anike N. Bowaire Asmuruf, Andy Amus Saul Asmuruf, Frans Augusthinus Baru, Netty Y. Baru, Netty Yufita Bowaire , Anike Nelce Bowaire, Anike Nelce Flassy, Reinhard V. Handayani, Ragil Tri Haselo, Linus Inriyanti Assa Kezia Noviani Anou Lily H Nengkey Mandik, Yohanis Irenius Ngaderman, Hubertus Noper Tulak Poli, Ivonne S, Ego Srivajawaty Sonia Kornelia Kwano Yusuf Bungkang