Article Per Year (5 Year)
p-Index From 2020 - 2025
8.928
P-Index
This Author published in this journals
All Journal International Journal of Renewable Energy Development BERKALA FISIKA SAINS DAN MATEMATIKA Jurnal Ilmu Lingkungan Jurnal Perikanan dan Kelautan YOUNGSTER PHYSICS JOURNAL Jurnal Teknik Sipil Scientific Journal of Informatics Jurnal Manajemen Pendidikan (JMP) International Journal of Artificial Intelligence Research Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Biologi Tropis Solidaritas Jurnal Akuatiklestari Aquasains : Jurnal Ilmu Perikanan dan Sumberdaya Perairan e-Jurnal Rekayasa dan Teknologi Budidaya Perairan Journal of Physics and Its Applications JSiI (Jurnal Sistem Informasi) Jurnal Pengembangan Riset dan Observasi Teknik Informatika Dialogia: Jurnal Studi Islam dan Sosial Jurnal Sains Teknologi Akuakultur Journal of Machine Learning and Soft Computing Journal of Tropical Marine Science Jurnal Fisika Indonesia Jurnal Ners Jurnal Abdi Insani Jurnal Ilmiah Abdi Mas TPB Unram Jurnal Kesehatan Tambusai Arwana: Jurnal Ilmiah Program Studi Perairan JOURNAL LA MEDIHEALTICO Journal of Islamic Philanthropy and Disaster Journal of Community Development and Disaster Management Journal of Communication Studies Jurnal Al-Qayyimah Academic Physiotherapy Conference Proceeding Mandala of Health : A Scientific Journal Jurnal Keperawatan Jurnal Riset Rumpun Ilmu Sosial, Politik dan Humaniora (JURRISH) Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Social Science Academic Journal of Community Service and Society Empowerment Proceeding of International Conference of Islamic Education Global Forest Journal Jurnal Pengabdian Fakultas Pertanian Universitas Lampung Oftalmologi: Jurnal Kesehatan Mata Indonesia Economic, Accounting Scientific Journal (CASH) Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan Journal of Community Services and Engagement: Voice of Community (VOC) Jurnal Perikanan dan Kelautan Jurnal Perikanan JLTLL
Agus Setyawan
Department Of Physics, Faculty Of Science And Mathematics, Diponegoro University, Semarang
Religion Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Veterinary Other

Published : 122 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 122 Documents
Search

 2   3   4   5   6 
Pemodelan 2 dimensi data magnetotellurik berdasarkan analisis phase tensor dalam penentuan geoelectrical strike dan dimensionalitas data di Lapangan Panas Bumi “X” Fitra Ramdhani; Agus Setyawan; Imam B. Raharjo; Lendriadi A.
Youngster Physics Journal Vol 6, No 3 (2017): Youngster Physics Journal Juli 2017
Publisher : Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1183.353 KB)

Abstract

Magnetotelluric research has been done on the geothermal field "X" aims to indentify dimensionality of data, direction of geoelectrical strike and map resistivity distribution of subsurface structure. Before modelling 2 dimensional subsurface structure, MT data must go through stage quality control data, analysis of dimensionalitas data and analysis direction of geoelectrical strike to get 2 dimensional structure model of the subsurface are accurate. The stages of quality control data was done by eliminate the points in the curve of resistivity and phase which out of the trend that is considered as noise. Dimensionality data analysis use curve of three parameters invariant phase tensor i.e phi maximum, phi minimum and beta. Analysis of  the geolectrical strike direction was done by showing a reduction of angle  and  in rose diagram. Overall the analysis phase tensor was performed on 60 tensor magnetotelluric data in the geothermal field "X". Modeling subsurface resistivity structure use the scheme forward modelling and inverse modelling. The results of selection cross power showed that magnetotelluric data are dominated by good quality data. The results of dimensionality data analysis indicates that the dimensionality data of MT data in the geothermal field "X" consists of structure with dimensionality 1D, 2D and 3D structure. Structure with dimensionality 1D is in  frequency range 320 – 44 Hz, Structure with dimensionality 2D is in frequency range 44 – 0,3 Hz and structure with dimensionality 3D is in  frequency range 0.3 – 0.004 Hz in the geothermal field "X". Rose diagram in frequency range 320 – 0.3 Hz was combined with direction of regional structure in geothermal field "X" indicates that the direction of geoelectrical strike is N330oE. 2 dimensional modeling has been done in the frequency range 320 – 0,3 Hz. Data is rotated in the direction of geoelectrical strike before the modeling stage. 2 dimensional model consisting of five line perpendicular to the direction of the structure in the field. 2 dimensional model  show caprock layer has s resistivity range 5-20 Ohm-m that thicken to the Northwest while the reservoir layer has a resistivity range 80-120 Ohm-m are thinned to the Northwest. The heat source has a resistivity range 400-500 Ohm-m and located at depth  3.5 km below the surface.Keywords: Dimensionality, geoelectrical strike, distortion, model 2 dimensi
APLIKASI METODE BIDIMENSIONAL EMPERICAL MODE DECOMPOSITION (BEMD) UNTUK DATA GAYABERAT GUNUNG UNGARAN, INDONESIA Fuad Tarmidzi; Agus Setyawan
Youngster Physics Journal Vol 2, No 4 (2013): Youngster Physics Journal Oktober 2013
Publisher : Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1254.778 KB)

Abstract

Gravity method processing will obtained gravity anomaly which is combination between regional and local gravity anomalies that need to separate it for interpretation. Upward continuation method commonly used to separates regional and local gravity anomalies. Recently, the separation of these anomalies can be done with Bidimensional Empirical Mode Decomposition (BEMD) method which its calculation based on gravity anomaly profile. BEMD will separates gravity anomali profile based on its frequency that some sub-sinyal will obtained from it. On this research, BEMD method has been used to separate gravity anomaly of Ungaran Mountain dan the result of it compared with the result from Upward Continuation method. 5 Intrinsic Mode Function (IMF) and 1 residual were obtained from BEMD method, wherein IMF3 showed pattern of regional gravity anomali and IMF1 showed pattern of local gravity anomaly. With using these methods, obtained patterns were similar. Keywords: BEMD, Gravity anomalies, Ungaran, IMF
Monitoring perubahan massa area lumpur LAPINDO dengan metode gayaberat antar waktu: Stusi kasus Porong Jawa Timur Indah Asmoro Wulan; Agus Setyawan
Youngster Physics Journal Vol 6, No 4 (2017): Youngster Physics Journal Oktober 2017
Publisher : Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1238.452 KB)

Abstract

Sidoarjo mud occurs because of the emergence of hot mud and mudflow. Microgravity method used to monitor the mud, indicate that height change and know subsurface structure. Microgravity analysis based on microgravity data used to find out the value of microgravity changes. The result of microgravity value change indicate that the positive value is the addition of subsurface mass and land subsidence while the negative value is the reduction of subsurface mass. Three dimensional modeling based on gravity data were performed to find out the subsurface structure in the study area. The complete Bouguer anomaly is separated using an upward continuation to obtain regional and residual anomalies. 3D modeling were performed on complete Bouguer anomalies. 3D modeling results indicate of sedimentary rocks, sand, gravel, clay and indicate.Keywords: land subsidence, mudflow, microgravity method, 3D modelling
IDENTIFIKASI POTENSI AKUIFER BERDASARKAN METODE GEOLISTRIK TAHANAN JENIS PADA DAERAH KRISIS AIR BERSIH DI KOTA SEMARANG Octaviani Sarmauli; Agus Setyawan; Dwiyanto JS
Youngster Physics Journal Vol 5, No 4 (2016): Youngster Physics Journal Oktober 2016
Publisher : Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (971.026 KB)

Abstract

Semarang city has a unique geological rock formations constituent layers in each region. The uniqueness of the identification of the presence of roundwater show that is different. Groundwater reserves in fulfilling the water requipments decreasing due to population growth, industrial growth and infrastructure development. This study aims to identify potential of aquifer to know the type of lithology layers, thickness and depth. The method used in this research is a geoelectric resistivity Schlumberger configurations with measurement points are Cangkiran, Cepoko, Ngadirgo, Gunungpati, Pakintelan, Pesantren, Tandang and Rowosari. The results suggest the potential for aquifer interpretations are based on the value of resistivity 19,6 Ωm – 92,5 Ωm with lithology as a sandstone. The aquifer grouped into the deep aquifer and the shallow aquifer. Deep aquifer has range of depth between 50-100 meters on point CA-3, CA-4, CE-1, CE-2, NG-2 and TA-1. Shallow aquifer has range of depth between 10-4 meters on point of GP, NG1, PA, PE and RO.
PENENTUAN PREKURSOR GEMPA BUMI MENGGUNAKAN DATA MAGNETOTELLURIK DI DAERAH PELABUHAN RATU Noviana Fransiska; Agus Setyawan; Boko Nurdiyanto
Youngster Physics Journal Vol 2, No 3 (2013): Youngster Physics Journal Juli 2013
Publisher : Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (699.374 KB)

Abstract

The research has been done by using data of electromagnetic parameter base on the result of magnetotelluric observation which  located in geophysics observation Pelabuhan Ratu. Research of earthquake precursor in order to find out the characteristic of electromagnetic signal by applying spectral analysis ratio method on Ultra Low Frequency (ULF).             The data is electromagnetic secondary data from observation result of magnetotelluric and data of Dst index year 2011.  The data magnetotelluric is consist of electric component and magneict component. The filtering data is executed by using wavelet method. Result of  filtering  will be shown as graph ratio of magnetic field and electric field spectral intensity in a time domain.            According to the analysis by using spectral density analysis can be found out that the characteristic of ULF signal on frequency 0.01 Hz before earthquake show that there is an increase of value for magnetic polarization and occurred decrease of EM wave impedance value. From the analysis result show an appearance of magnetic polarization anomaly which expected as earthquake precursor and can be seen around 10 – 19 days before the occurrence of earthquake while for the value of EM wave impedance can be seen around 23 – 40 days before earthquake.Keywords : Precursor, Ultra-Low-Frequency, Spectral Density Ratio Analysis, Pelabuhan Ratu
IDENTIFIKASI LETAK DAN JENIS SESAR BERDASARKAN METODE GAYABERAT SECOND VERTICAL GRADIENT STUDI KASUS SESAR LEMBANG, KOTA BANDUNG, JAWA BARAT M Wildan Firdaus; Agus Setyawan; Mahmud Yusuf
Youngster Physics Journal Vol 5, No 1 (2016): Youngster Physics Journal Januari 2016
Publisher : Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (217.749 KB)

Abstract

Gravity measurement has been done in Lembang area, Bandung on 2014. Measurement were perform with relative gravity (Scintrex CG-5) with 28 measuring point around Lembang fault. The aim of this research is to observe gravity response Bouguer anomali toward Lembang fault structure along 22 kilometers from eastern to west. In this research, we use second vertical gradient to known about the location and kind of fault structure. As the result from this research shown the Bouguer anomali has a distribution value around -2 mGal – 52 mGal, this result indicated that Lembang Fault are located between high and low Bouguer anomali. While the result from second vertical gradient indicated that Lembang Fault is a normal fault.Keywords: gravity, Bouguer, SVG, fault, Lembang
IDENTIFIKASI STRUKTUR RESISTIVITAS DAERAH GEOTHERMAL “T” BERDASARKAN HASIL PEMODELAN 2D DATAMAGNETOTELURIK Nur Rachmaningtias; Agus Setyawan; Imam Baru Raharjo
Youngster Physics Journal Vol 3, No 2 (2014): Youngster Physics Journal April 2014
Publisher : Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (581.217 KB)

Abstract

Resistivity structure identification of magnetotelluric data was made at geothermal area“T”, located in southern Indonesia. This process is based on the modeling result of 2-dimention magnetotelluric data. The modeling result of magnetotelluric data shows relativity structure dissemination on a scale of 0-10 ohm.m in a thickness of 1 km (clay cap), on a scale of 10-100 ohm.m in a depth of 1-2 km (reservoir zone), and on a scale of 100-1000 ohm.m in a depth of 2-3 km (heat source zone). The result of relativity structure dissemination can be used to delineate an area with geothermal prospect around 12 km2. Keywords: magnetotelluric, 2 dimension modeling, structure resistivity
APLIKASI INVERSI-AVO UNTUK INTERPRETASI SEISMIK DIBAWAH KETEBALAN TUNING THICKNEES STUDI KASUS LAPANGAN “HD” Endriasmoro M Siagaan; Agus Setyawan; Oky Irawan Sugiri
Youngster Physics Journal Vol 3, No 4 (2014): Youngster Physics Journal Oktober 2014
Publisher : Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (222.664 KB)

Abstract

The seismic data has different character, therefore the method used for reservoir characterization of a particular area will not be the same as the other areas. If the coating has a thickness below tuning thickness of the layer, there will be a buildup of wave amplitude. If not recognized can lead to misinterpretation (pitfall). There are several methods that can still interpret the data among other things, methods of seismic inversion and AVO. Both methods are used to characterize the reservoir and determine the rock layers are believed to have potential hydrocarbon accumulation. Seismic inversion methods used to determine the distribution of rock layers below the surface, obtained through this method lithological layers of sandstone that has the potential to be a reservoir. AVO method is the initial method used to determine the gas anomalies and known in this field there is the presence of gas, but in this method can only indicate the presence of gas, by combining these two parameters will be obtained by the distribution of lithology and hydrocarbon clearly. The integration of these two methods shows that although the seismic data below the tuning thickness, can still be interpreted in order to get the reservoar lithological a sandstone layer is enough potential to be explored further. Value inversi Vp/Vs 1,75-1,82Keywords: Inversion, AVO, tuning thickness
APLIKASI METODE GEOLISTRIK UNTUK MENYELIDIKI INTRUSI AIR LAUT DI KAWASAN PANTAI KOTA SEMARANG (KALIGAWE) Dhana Hastuti; Fitra Ramdhani; Fajar Waskito; Galang Virgiawan; Ganap Yuliana Febrika; Agus Setyawan
Youngster Physics Journal Vol 4, No 4 (2015): Youngster Physics Journal Oktober 2015
Publisher : Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (384.077 KB)

Abstract

Kaligawe is a village in East Semarang, Central Java, Indonesia. Rising population lead to increased ground water extraction and land use. Excessive groundwater abstraction resulting height difference surface ground water to the surface of the sea water, causing sea water intrusion. To determine the value of the depth of seawater intrusion areas of research conducted using resistivity method. Data is collected as much as 3 lines. The field data in the form of current, potential difference, and apparent resistivity processed. Then made modeling 2D with Res2Dinvx32 software to produce the actual resistivity and depth of each layer of the earth's subsurface. The results showed seawater intrusion occurs in the northwest, east and south of the study area is shown with a small resistivity of 2.07-13.2 Ωm at a depth of 0-35 m below the earth's surface.
IDENTIFIKASI BATUPASIR SEBAGAI AKUIFER DENGAN APLIKASI GEOLISTRIK KONFIGURASI SCHLUMBERGER (STUDI KASUS DI KECAMATAN GABUS KABUPATEN GROBOGAN) Faizal Ahmad; Sugeng Widada; Agus Setyawan
Youngster Physics Journal Vol 5, No 3 (2016): Youngster Physics Journal Juli 2016
Publisher : Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (830.172 KB)

Abstract

Gabus Village at Grobogan district are areas those experiencedsevere drought in the dry season. The existence of water sources are not enough for daily needs of the family. Georesistivityis a method to discover groundwater by position of the aquifer as a water storage. The potential difference of georesistivity processed using IPI2win program to determine the value of resistivity of each layer and RockWork15 as 3D modeling. With the correlation of the results of georesistivity and geologic conditions, then we can determine the depth and thickness of groundwater aquifers. Potential aquifers discovered in the Gabus region is a sandstone free aquifer (not pressed) with a value of resistivity is 13.2 Ωm at a depth of 11 meters from the line surface georesistivity interpreted as overburden.Keywords:aquifer, geoeresistivity, schlumberger
Co-Authors A. Suhandi A.A. Ketut Agung Cahyawan W Achmad Samsudin Achmad Supriyadi, Achmad Adi Nugroho Agnis Triahadin Agnis Triahadini, Agnis Agung Prasetyo Agus Subagio Agus Susilo Agustina, Cynthia Ahwy Oktradiksa Akbar, Shofya Alfina, Ria Aliyatarrafiah Aliyatarrafiah Althafunnisa, Namyra Aisha Aman Damai, Abdullah Anik Fitrochaton Chasanah Ansori, Teguh Arif, Mas Achmad Syamsul Arlanda, Revilarita Asri Nurdiana, Asri Astuti, Andriani Mei Azis, Latif Saiful Azizah Azizah Azizi, Sandi Bambang Mujihardi Baroek, Marino Christiano Berta Putri Boko Nurdiyanto Brandan Tito Ramadhan Choirul Wahid, Imam Mustofa D Febrianty Dadan Dani Wardhana Damai, A Aman Dave Emmanuel Haning Dewi Mariyaningsih Dhana Hastuti Dimas Sidiq Baskoro Dita Aprilina Djalal Er Riyanto Dwi Purwantoro Sasongko Dwi Puspitasari Dwiki, Elba Dwiyanto JS Dzuelqarnain, Muhammad Essa eko efendi Elisdiana, Yeni Endriasmoro M Siagaan Esti Harpeni F M Arif Faizal Ahmad Fajar Waskito Fajrin, Fajrin fidhoh, kha Fidyandini, Hilma Putri Firdausi, Hilma Nahwa Fithria I D, Ni'matul Fitra Ramdhani Fitra Ramdhani Florentina Yuni Arini, Florentina Yuni Frysca Putti Muviana Fuad Tarmidzi Galang Virgiawan Ganap Y. Febrika Ganap Yuliana Febrika Ghufron Abdullah Gunawan, Riyan Habib, Farid Alif Harri Yudianto Hauzan, Noor Azmi Fachri Hauzan, Noor Azmi Fachri Hay's, Riyan Naufal Herbianto, Sheren Aurellya Hidayat, Muhammad Adil Hidayati, Ina Hilmi, Haidar Hirafiany Daruartati I Gusti Ngurah Antaryama I Nyoman Sujana Ibnu Rasid Ida Hayu Dwimawanti Ilham Nurdien Imam B. Raharjo Imam Baru Raharjo Imam Baru Raharjo Indah Asmoro Wulan Indra Gumay Febryano Irawan, Ady Isa Akhlis Isnain Gunadi Istikomah Istikomah Istiqomah Ari Kusuma Ita purnamasari, Ita Itasari, Andri Astuti Jatmiko Endro Suseno Jatmiko Endro Suseno Juliasih, Ni Luh Gede Ratna Kanthi Pamungkas Sari Kasanah, Nur Khafidhoh Khafidhoh, Khafidhoh Khairunissa, Hatifa Khasana, Devi Ardiyati Kholidin, Edy Barkat Kusno Adi Sambowo Kusumaningrum, Rahma Puspita Lendriadi A. Lestari, Kiki Indah Lestari, Sepnina Like Limin Santoso Linirin Widyastuti, Endang Listia, Octa Lutfiani, Ulfah M Wildan Firdaus Maharani, Ni Putu Diva Mahestri, Laras Mahmud Yusuf Malau, Victor Pandpotan Maya Riantini, Maya Maya Sekar Wangi Moch. Abdul Mukid Mohammed I. D. Matar, Mohammed Mualimin Mualimin Mualimin Mualimin Muchammad A Rofik Muchlis, Ibnu Mufita, Halimah Muhammad Irham Nurwidiyanto Muhammad Mualimin Muhammad Nur Muhammad Nur Handoyo Munti Sarida Murtiningtias Diah Ayu Martha Dewi Mustafid Mustafid Mutiatussholikah, Dita Muyasaroh, Evi Nafiisah, Nafiisah Naufal, Adnan Faris Ningsih, Setia Nisa Az Zuhdy, Afifah Nona Dili Maricci Noor Alis Setiyadi Noor, Huriyatul Fitriyah Noviana Fransiska Nuning Nurcahyani Nur Rachmaningtias Nurcahyo, Mugi Nurhadiyastuti, Ameilia Nuriyana Muthia Sani Nursamsiah Nursamsiah Nurul Khasanah, Nurul Nur`Ani Okta Trilia Octaviani Sarmauli Oki Hedriana Oky Irawan Sugiri Ophi Thio Rendy Parabi, Achmad Reza Parbuntian Sinaga Pitojo Budiono Prabowo, Muhammad Nur Priyo, Priyo Putra, Hisbicus Dwi Surya Qadar Hasani R. M. Tofan Sastranegara Rahayu, Wiji Rahaz, Muhammad Faiz Thoyib Rahmasari, Ikrima Rahmat Gernowo Ramadhan, Irvan Rara Diantari Ratih Rundri Utami Ratna Dewi Winesthi Redemtus Heru Tjahjana Rina Dwi Indriana Rina Hesti Utami Ririn Sulpiani Sakti, Doni Bilga Komara Sari, Azzahra Indah Satriyo Adhy Sela Ade Otaviana Setiawan, Aqshal Dwi Siti Fathonah Siti Hudaidah Siti Rohimah Sitompul, Hotlan Albert Adventus Subandoro, Agus Sudarno Sudarno Sugeng Widada Sugiharto, Sh Sumino, Sumino Supono Supono Supriyadi - Supriyadi - Susanti, Oktora Susanti, Susanto, Gregorius Nugroho Sutrisno, Ade TATI NURHAYATI Teguh Satya Bhakti Teguh Suroso Thessa Putri Aulia Tiara Qonita, Azhra Tiara Qonita Titik Haryati Tugiyono Tugiyono Udi Harmoko Wahyono, Catur Wahyu Eko Sulistiono Wardiyanto - Widiarso Dian Agus Widiastuti, Endang Linirin Winaldi, Iman Wisnu Agung Permadi Wiyatanto, M Toto Yasluh, Muhammad Sholukha Yatti Pratyas Katrinavia Yatti Pratyas Katrinavia Yayan Yuliananto Yayan Yuliananto Yeni Indriyani Yoga Aribowo Yudha T Adiputra Yudha Trinoegraha Adiputra Yundari, Yundari Yuniarti, Siti Yusup, Maulid Wahid Zainal Abidin Zaini, Syakila Zulfikar Zafeskan Ronapati