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All Journal Jurnal Sains Dasar Natural B Scientific Journal of Informatics JOURNAL ONLINE OF PHYSICS Jurnal Fisika FLUX Jurnal Inovasi dan Pembelajaran Fisika Jurnal Pendidikan Fisika dan Keilmuan (JPFK) DEVELOPMENT : Journal of Community Engagement Jurnal Pijar MIPA Jurnal Mahasiswa Dirgantara
Agus Suprianto
Jurusan Fisika FMIPA Universitas Jember
Aerospace Engineering Astronomy Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Environmental Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation

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Analysis of The Distribution of Geothermal Potential and The Manifestations in Ijen Volcanic Complex Based on Land Surface Temperature and Geomorphology Bowo Eko Cahyono; Nurfaizatul Jannah; Agus Suprianto
Natural B, Journal of Health and Environmental Sciences Vol 5, No 1 (2019)
Publisher : Natural B, Journal of Health and Environmental Sciences

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

Abstract

Indonesia's geographical conditions which are at the confluence of three tectonic plates contribute to the availability of geothermal energy. The first step that can be taken in geothermal potential exploration activities is to study the characteristics of geothermal potential areas. In this case the study of the characteristics of geothermal potential will be carried out in the Ijen Mountains complex. This study aims to analyze the distribution of geothermal potential based on land surface temperature, and geothermal manifestations based on the association of land surface temperature and geomorphology. Remote sensing data used in the study were Landsat 8 images acquired in September 2013, 2015, and 2017. The results showed that geothermal potential areas were in the interior of the Ijen Mountains caldera with a temperature anomaly of 26-50 °C which was dominated by high greenish vegetation. While some geothermal manifestations that have been recorded are known to be associated with lineament that intersects with high land surface temperatures, so that the lineament that has the potential to be a fluid discharge pathway for geothermal manifestations is lineament that consistently intersects with high land surface temperatures in September 2013, 2015, and 2017 with the Southeast-Northwest and Southwest-Northeast orientations.
Korelasi Data Gravitasi Satelit pada Daerah Panas Bumi Blawan-Ijen Novi Anivatul Karimah; Supriyadi Supriyadi; Agus Suprianto
Jurnal Sains Dasar Vol 9, No 1 (2020): April 2020
Publisher : Faculty of Mathematics and Natural Science, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jsd.v9i1.26431

Abstract

Energi panas bumi merupakan energi sumber daya alam berupa air panas atau uap panas yang terbentuk melalui pemanasan di dalam bumi. Salah satu daerah yang memiliki potensi panas bumi adalah Blawan-Ijen. Metode yang sering digunakan untuk identifikasi panas bumi adalah metode gravitasi. Data yang digunakan pada penelitian ini adalah data gravitasi satelit yaitu BGI dan GGMplus. Data Bouguer BGI merupakan data anomali bouguer yang sudah siap diolah, sedangkan untuk data GGMplus masih merupakan data gravity disturbance. Data gravitasi GGMplus tergolong data gravitasi yang masih baru, sehingga diperlukan pembandingan dengan data gravitasi lainnya. Tujuan penelitian ini adalah mengetahui korelasi antara data gravitasi BGI dengan GGMplus. Proses korelasi dilakukan untuk mengetahui seberapa besar kemiripan antara data gravitasi GGMplus dengan BGI. Korelasi dilakukan dengan membuat digitasi kontur anomali gravitasi pada software Surfer dan menghitung nilai korelasi antar titik data gravitasi BGI dan GMplus. Hasil yang diperoleh menunjukkan bahwa ABL GGMplus dengan ABL BGI memiliki kemiripan dengan nilai korelasi sebesar 0,94. Kontur ABL GGMplus dan ABL BGI menunjukkan bahwa daerah pegunungan Ijen didominasi oleh nilai ABL rendah dengan rentang nilai 70 hingga 100 mGal. Pada kedua kontur ABL tersebut juga teramati kontras anomali gravitasi yang menunjukkan keberadaan patahan.
ANALISIS DATA RESISTIVITAS DAN UJI PERMEABILITAS TANAH DI DAERAH RAWAN LONGSOR DESA KEMUNING LOR KECAMATAN ARJASA KABUPATEN JEMBER gladys ningtyas; Nurul Priyanti; Agus Suprianto
JOURNAL ONLINE OF PHYSICS Vol. 6 No. 1 (2020): JOP (Journal Online of Physics) Vol 6 No 1
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v6i1.10181

Abstract

Kecamatan Arjasa Kabupaten Jember merupakan salah satu daerah yang rawan mengalami bencana tanah longsor. Salah satu penyebab terjadinya longsor akibat dari kondisi batuan yang lemah sehingga mengakibatkan massa tanah diatasnya bergerak. Kondisi ini dapat diketahui dari nilai resistivitas yang dideteksi menggunakan metode geolistrik. Nilai resistivitas menggambarkan jenis tanah untuk setiap lapisan tanah. Tanah longsor selain dipengaruhi jenis tanah, juga dipengaruhi oleh sifat fisis tanah salah satunya yaitu permeabilitas tanah. Tujuan dari penelitian ini yaitu untuk mengetahui hubungan antara hasil metode geolistrik dan uji permeabilitas tanah. Data resistivitas awal diolah menggunakan software RES2DINV yang selanjutnya diolah dengan software Rockworks untuk mengetahui sebaran nilai resistivitas dalam bentuk 3D. Uji permeabilitas dilakukan untuk mengetahui kemampuan tanah dalam melewatkan air. Diketahui hasil dalam bentuk 3D nilai resistivitas berada pada rentang (8.29 – 149.83) Ωm dengan jenis tanah lempung lanauan dan tanah lanauan basah lembek serta tanah lanauan pasiran. Uji permeabilitas tanah menunjukkan bahwa di daerah penelitian memiliki kecepatan permeabilitas lambat hingga sedang cepat. Tanah lempung lanauan lebih lambat dalam meloloskan air daripada tanah lanauan pasiran.
Simulasi Perambatan Gelombang Georadar (GPR) pada Suatu Media Berlapis Agus Suprianto
Jurnal Fisika FLUX Vol 6, No 1 (2009): Jurnal Fisika Flux Edisi Februari 2009
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (795.5 KB) | DOI: 10.20527/flux.v6i1.3046

Abstract

The simulation of the wave propagation of the radar in the sub-surface was very important to be understood before being carried out of field acquisition,to maximize the design of the acquisition and to optimized radar gram data’s.One of the approaches in the simulation of the data was to use propagationmodeling of the electromagnetic wave by using the Finite Difference TimeDomain solution (FDTD). Modeling of electromagnetic wave propagation in theGPR requires a solution of Maxwell’s equations or present a finite-differencetime-domain (FDTD) solution of Maxwell’s that permit accurate computation ofthe radiated field from a transmitting antenna. Propagating through the air-earthinterface, scattering by subsurface targets and reception of the scattered fieldsby receiving antenna. This technique is second-order accurate in time andfourth-order accurate in space. In this paper, I demonstrate the synthetic radargram by applying this technique to two-dimensional examples from a subsurfaceof stratified media.
PEMETAAN MAAR DAN CINDER CONE WILAYAH GUNUNG LAMONGAN MENGGUNAKAN ANALISIS POWER SPECTRUMDAN UPWARD CONTINUATION Supriyadi Supriyadi; Toviatun Toviatun; Agus Suprianto
JURNAL INOVASI DAN PEMBELAJARAN FISIKA Vol 7, No 2 (2020): JURNAL INOVASI DAN PEMBELAJARAN FISIKA
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jipf.v7i2.12010

Abstract

The gravity method is a method often used in geophysical exploration. According to recent technological developments, data acquisition has evolved by utilizing satellite data and modeling, one of which is GGMplus gravity data. In this study, GGMplus gravity data will be used to map the distribution of maar and cinder cones in the Gunung Lamongan Region. To obtain the optimal local anomaly results of gravity data, a combination of power spectrum analysis and upward continuation filtering methods is carried out.ABL data contours are sliced, gravity anomaly data from each slicing path is processed using FFT so that the wave number and power spectrum values are obtained as well as the relationship graph between the two.The power spectrum analysis method provides window width data that is used as information on determining the height of the upward continuation method.The ABL contour map in the Gunung Lamongan region shows a range of gravitational field values between -20 mGal to 50 mGal. High anomaly values indicate the existence of Mount Lamongan which is dominated by intrusive rocks. The subsurface structure of the Gunung Lamongan region is thought to consist of tuff, lava, volcanic breccia, and lava. The existence of maar and cinder cones in the Gunung Lamongan area can be mapped from the contours of the local anomaly. Local anomaly contours are obtained from ABL data by connecting the two methods of filtering i.e power spectrum analysis and upward continuation. There are 10 cinder cones and 8 maar visible on the local anomaly contour map.
Analisis Keberadaan Batuan Mangan Menggunakan Metode Golistrik 1D dan Pengukuran Resistivitas Sampel di Laboratorium Afriedha Atika Tiffany; Faridatur Riskiya; Nurul Priyantari; Agus Suprianto
Jurnal Pijar Mipa Vol. 16 No. 1 (2021): Januari 2021
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (284.053 KB) | DOI: 10.29303/jpm.v16i1.1306

Abstract

Telah dilakukan penelitian menggunakan Metode Geolistrik 1 D dan pengukuran resistivitas sampel batuan mangan di laboratorium, dengan tujuan untuk mengidentifikasi keberadaan dan kedalaman batuan Mangan di Gunung Sadeng, Jember. Gunung Sadeng merupakan gunung kapur yang teridentifikasi mengandung batuan mangan. Metode yang digunakan adalah  metode geolistrik 1 Dimensi atau Vertical Elecrical Sounding (VES) dengan konfigurasi Schlumberger, sedangkan pengukuran sampel di laboratorium menggunakan metode empat titik. Data diolah menggunakan Software Ipi2win untuk memperoleh litologi bawah permukaan. Mangan memiliki nilai resistivitas rendah dengan rentang (44-160) Ωm dan termasuk dalam resistivitas limestone. Hasil dari penelitian menunjukkan bahwa litologi di kawasan Gunung Sadeng terdiri dari limestone, gamping terumbu, limestone bersisipan mangan, dan lempung kering. Limestone bersisipan mangan berada di kedalaman (14.20-23.4) m, (3.52-16.20) m dan (3.79-7.91) m. Sedangkan hasil laboratorium uji sampel batuan, memiliki resistivitas 88.85 Ωm, 100.91 Ωm dan 199.43 Ωm.
Estimasi temperatur bawah permukaan reservoir Gunung Lumpur Bledug Kuwu (GLBK) Jawa Tengah menggunakan metode Geotermometri Aryono Adhi; Wahyudi Wahyudi; Wiwit Suryanto; Sismanto Sismanto; Agus Suprianto; Ellianawati Ellianawati
Jurnal Pendidikan Fisika dan Keilmuan (JPFK) Vol 5, No 1 (2019)
Publisher : UNIVERISTAS PGRI MADIUN

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (345.873 KB) | DOI: 10.25273/jpfk.v5i1.3425

Abstract

Studi literatur untuk mengestimasi temperature reservoir Gunung Lumpur Bledug Kuwu telah dilakukan menggunakan metode geotermometri larutan. Perhitungan temperature diperoleh dari hasil perhitungan empiris kandungan unsure-unsur kimia terlarut pada air panas Gunung Lumpur Bledug Kuwu. Kandungan unsure ini diperoleh dari hasil analisis sampel air panas dengan metode Atomic Absorption Spectrophotometer (AAS) yang dilakukan oleh Rizqiya 2014, berupa konsentrasi Na, K, Ca, Mg dan SiO2. Dari hasil perhitungan ini, estimasi temperature reservoir Bledug Kuwu berkisar antara 90.411 – 148.354 0C.
Inverse Modeling Using Taylor Expansion Approach and Jacobi Matrix on Magnetic Data (Dyke/Magma Intrusion Cases) Agus Suprianto; Wahyudi Wahyudi; Wiwit Suryanto; Ari Setiawan; Aryono Adhi; Nurul Priyantari; Supriyadi Supriyadi; Agus Subekti
Scientific Journal of Informatics Vol 6, No 2 (2019): November 2019
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/sji.v6i2.19798

Abstract

The mathematical modelling of geological structures, i.e. magma intrusion or dyke, has been done,  based on magnetic data with inversion techniques using MatLab. The magnetic equation is a non-linear equation, and completion is done using a linear approach to non-linear mathematical models of magnetic data using the Taylor expansion approach and Jacobi Matrix. The first step of this research is to make synthetic data forward modelling from the magnetic equation of magma intrusion or dyke cases without errors, and the next stepping then add errors to the data. The next step is to do an inversion to get the parameters sought, i.e. depth and angle of the magma intrusion, by giving initial guesses, and then re-correct iteratively until convergent results are obtained. Finally, parameters of slope dyke or thin magma intrusion and its depth can be determined. The results obtained indicate that this technique can be used to get physical parameters sought from magnetic data for simple geological cases, i.e. dyke and magma intrusion.
Investigating The Presence Of Groundwater At Landslide Affected Areas Using The 2D Geoelectrical Method (Case Study Of Argopuro Mountain Slope At Suci Village, Jember) Nurul Priyantari; Agus Suprianto; Irdiana Faiqah
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 20, No 3 (2023): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v20i3.16078

Abstract

The presence of groundwater and landslides have a close relationship, especially in the context of the influence of groundwater on slope stability. High groundwater levels can cause an increase in hydrostatic pressure on slopes, reduce soil carrying capacity, and reduce friction between soil particles. A decrease in the carrying capacity of the soil causes a decrease in the carrying capacity of the soil on the slopes. This condition can lead to a decrease in slope stability and the potential for landslides to occur. Therefore, it is essential to map subsurface conditions in landslide-affected areas and identify the potential aquifers. One of the geophysical methods that can describe this is the resistivity geoelectric method. The working principle of the resistivity geoelectric method is to inject an electric current into the soil through a pair of current electrodes and then read the electric potential difference through a pair of potential electrodes so that the resistivity value in the medium below the soil surface can be determined. Data collection was carried out in three tracks. The resistivity value on the first track is in the range (4.09 – 0.5) Ωm and reaches a depth of 31.6 m. The resistivity value on the second track is in the range (6.91 – 105) Ωm and reaches a depth of 31.6 m. The resistivity value on the third track is in the range (13.1 – 512) Ωm and reaches a depth of 15.9 m. Finally, there are also indications of the presence of groundwater in the first and second tracks, which are characterized by low resistivity values in the resistivity cross-sectional images
Analisis Field Performance Pesawat Airbus A350-Xwb pada Beberapa Bandar Udara di Wilayah Yaman Mohammed Abdulwali; Freddy Franciscus; Agus Suprianto
Jurnal Mahasiswa Dirgantara Vol. 3 No. 1 (2024): Jurnal Mahasiswa Dirgantara
Publisher : FTK UNSURYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35894/jmd.v3i1.118

Abstract

Performa tinggal landas dan mendarat merupakan aspek penting dalam pengoperasian pesawat terbang, terutama terkait kebutuhan panjang landasan (runway requirement). Faktor-faktor seperti berat pesawat, elevasi landasan, dan kondisi permukaan runway menjadi parameter utama dalam menentukan kebutuhan panjang landasan yang optimal. Penelitian ini bertujuan untuk menganalisis performa tinggal landas dan mendarat (field performance) pesawat Airbus A350-XWB pada beberapa bandara di wilayah Yaman, yaitu Bandara Aden, Sanaa, dan Socotra, dengan mempertimbangkan perbedaan elevasi masing-masing bandara. Analisis dilakukan dengan pendekatan perhitungan kebutuhan panjang landasan berdasarkan data spesifikasi teknis pesawat dan tabel parameter International Standard Atmosphere (ISA). Hasil penelitian menunjukkan bahwa spesifikasi dan karakteristik pesawat Airbus A350-XWB serta mesin Rolls-Royce Trent-XWB telah diperoleh melalui aplikasi resmi masing-masing. Analisis performa pesawat pada tiga bandara di Yaman menunjukkan bahwa panjang landasan yang dibutuhkan saat lepas landas bervariasi, yaitu 2910,69 m di Bandara Aden, 2951,04 m di Bandara Sana’a, dan 2955,5 m di Bandara Socotra. Sementara itu, kebutuhan panjang landasan saat pendaratan relatif seragam di ketiga bandara, yaitu sekitar 2628,8 m. Perbedaan panjang landasan yang dibutuhkan terutama dipengaruhi oleh elevasi bandara yang berpengaruh terhadap densitas udara, di mana semakin tinggi elevasi suatu bandara, semakin panjang landasan yang dibutuhkan untuk proses lepas landas dan pendaratan.   Takeoff and landing performance are important aspects of aircraft operation, especially concerning runway requirements.  Factors such as aircraft weight, runway elevation, and runway surface conditions are the main parameters in determining the optimal runway length requirement.  This study aims to analyze the takeoff and landing performance (field performance) of the Airbus A350-XWB at several airports in Yemen, namely Aden Airport, Sanaa, and Socotra, taking into account the elevation differences of each airport.  The analysis was conducted using an approach to calculate the runway length requirements based on the aircraft's technical specifications and the International Standard Atmosphere (ISA) parameter table. The results of the study show that the specifications and characteristics of the Airbus A350-XWB aircraft and the Rolls-Royce Trent-XWB engine have been obtained through their respective official applications. Analysis of aircraft performance at three airports in Yemen shows that the runway length required for takeoff varies, namely 2910.69 m at Aden Airport, 2951.04 m at Sana'a Airport, and 2955.5 m at Socotra Airport. Meanwhile, the runway length requirement for landing is relatively uniform at the three airports, which is around 2628.8 m. The difference in runway length required is mainly influenced by the elevation of the airport which affects air density, where the higher the elevation of an airport, the longer the runway required for the takeoff and landing process.
Co-Authors Afriedha Atika Tiffany Agus Subekti Agustini Ari Setiawan Aryono Adhi, Aryono Assaiq, Muhammad Royhan Cahyono, Bowo Eko Ellianawati, Ellianawati Faridatur Riskiya Freddy, Franciscus gladys ningtyas Hudan Mudaris Irdiana Faiqah Khaerul Anwar Khaerul Anwar Mohammed Abdulwali Novi Anivatul Karimah Nurfaizatul Jannah Nurul Priyantari Nurul Priyanti Sismanto Sismanto Supriyadi Supriyadi Suryanto, Wiwit Toviatun Toviatun Wahyudi Wahyudi Wahyudi Wahyudi