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All Journal MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management POSITRON Jurnal Neutrino : jurnal fisika dan aplikasinya Physics Student Journal Proceeding International Conference on Global Resource Conservation Natural B Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Journal of Geoscience, Engineering, Environment, and Technology JOIV : International Journal on Informatics Visualization Jurnal Penelitian Pendidikan IPA (JPPIPA) Civil Engineering Journal JMM (Jurnal Masyarakat Mandiri) JURNAL TEKNIK INFORMATIKA DAN SISTEM INFORMASI Indonesian Physical Review Mitra Akademia: Jurnal Pengabdian Masyarakat Prosiding SNPBS (Seminar Nasional Pendidikan Biologi dan Saintek) Indonesian Journal of Forestry Research Jurnal Geosaintek Global Review of Tourism and Social Sciences
Adi Susilo
Jurusan Fisika Fakultas MIPA Universitas Brawijaya Malang
Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Physics Social Sciences Other

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ANALISIS SINYAL SEISMIK UNTUK MENGETAHUI PROSES INTERNAL GUNUNG IJEN JAWA TIMUR Jufriadi, Akhmad; Maryanto, Maryanto; Susilo, Adi; Purwanto, B. Heri; Hendrasto, Muhammad
Jurnal Neutrino JURNAL NEUTRINO (Vol 6, No 1
Publisher : Department of Physics, Maulana Malik Ibrahim State Islamic University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (758.143 KB) | DOI: 10.18860/neu.v0i0.2443

Abstract

Aktivitas Gunung Ijen pada bulan Desember 2011 sampai dengan Maret 2012 menarik untuk dikaji karena aktivitas selama bulan tersebut mengalami perubahan status dari kondisi normal menjadi  waspada  kemudian  meningkat  menjadi  siaga.  Tujuan  penelitian  ini  untuk  mengetahui karakteristik gempa vulkanik (tipe A dan tipe B) dan tremor harmonik serta melakukan identifikasi kantong  magma  dan  proses  internal  Gunung  Ijen  terkait  dengan  seismisitasnya.  Analisa  data dilakukan pada data rekaman sesimik dari gempa vulkanik (tipe A dan tipe B) dan tremor harmonik yang didapatkan dari 3 stasiun seismik yaitu Ijen (Ijen), Terowongan Ijen (TRWI) dan Kawah Utara Ijen (KWUI). Sinyal diseleksi berdasarkan waveform dan dianalisis spektralnya untuk mendapatkan kandungan frekuensinya. Analisis hiposenter dilakukan untuk mengetahui kedalaman gempa-gempa vulkanik yang digunakan sebagai dasar identifikasi kantong magma dan proses internal Gunung Ijen. Berdasarkan analisa terhadap data rekaman sinyal seismik didapatkan karakteristik gempa vulkanik dalam (VA) memiliki ciri sinyal dengan amplitude berkisar 5–46 mm, lama gempa berkisar 6–45 detik, kandungan frekuensi berkisar 3,4 Hz dan kedalaman sumber gempa berkisar 2.500 – 4.000 meter dibawah Kawah Ijen. Gempa Vulkanik Dangkal (VB) memiliki ciri sinyal dengan amplitude berkisar 3–46 mm,  lama  gempa  berkisar 5–25 detik,  kandungan frekuensi berkisar 2,6  Hz  dan kedalaman sumber gempa berkisar 0 - 2.500 meter dibawah Kawah Ijen. Untuk Tremor vulkanik kandungan frekuensinya berkisar 0,83 Hz, amplitude berkisar 0,5 – 45 mm dan sumber berada di bawah kawah. Aktivitas Gempa Vulkanik Gunung Ijen mengalami peningkatan tinggi ditandai dengan peningkatan gempa vulkanik dalam (VA) dan gempa vulkanik dangkal (VB) diikuti oleh tremor harmonik  serta  peningkatan  energi  gempa  vulkanik  yang  terkai  dengan  proses  internal  yang merupakan proses pergerakan magma dari dalam bumi menuju permukaan disebabkan oleh adanya kegiatan tektonik disekitar gunung yang menyebabkan adanya suplai magma dari kantong magma dalam yang diperkirakan berada pada kedalaman lebih dari 4000 meter dibawah permukaan laut.
The Future Prospect of Rattan as Food Resources in Central Kalimantan Kalima, Titi; Susilo, Adi
Proceeding International Conference on Global Resource Conservation Vol 6, No 1: Proceeding of 6th ICGRC 2015
Publisher : Proceeding International Conference on Global Resource Conservation

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (0.209 KB)

Abstract

Rattan plays an important role as food resources in the culture of the Dayak communities living near forest areas. Shoot of rattan is cooked by the Dayaks to make a dish "sayur umbut rotan". This stir-fried rattan shoot cuisine is always served in the event of Dayak traditional ceremonies. The aim of this study was to identify and inventory of rattan species that uses in the Dayak food. The study was carried out at the villages of Mantangai Hulu, Kalumpang, Katimpun, Sei Ahaz and Katunjung, in the Kapuas District, Central Kalimantan Province. The method used ware interviewing local community, making field observation and collecting voucher specimen of rattan for identification in the Herbarium of Center for Conservation and Rehabilitation Research and Development. Result of the study was revealed that six species of rattan were used in the Dayak foods which are Calamus caesius Blume, C. trachycoleus Beccari, C. ornatus Blume ex Schult. & Schult.), Daemonorops crinita Blume, D. fissa Blume, and Plectocomiopsis geminiflora (Griff.) Beccari. It is recommended that these six species of rattan should be cultivated in their garden to lessen disturbance to the natural population. Key words: Dayak; local communities; rattan; traditional food
CHARACTERIZATION OF RESERVOIR SANDSTONES USING LOG ANALYSIS TECHNICQUE EXTENDED ELASTIC IMPEDANCE IN FIELD X Widyasandy, Dhony; Susilo, Adi; Mu'in, Fatkhul
Jurnal Neutrino Vol 10, No 1 (2017): October
Publisher : Department of Physics, Maulana Malik Ibrahim State Islamic University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1276.707 KB) | DOI: 10.18860/neu.v10i1.4233

Abstract

Extended Elastic Impedance (EEI) Analysis first introduced by Whitcombe (2002) was used for the predicting lithology review and fluid in a hydrocarbon reservoir. EEI is an application of an angle that is applied in a certain range until the zone of interest (ZoI) clarified. EEI is an interesting subject to observe and very useful to be applied on seismic attributes with its ability to predict lithology and fluid where acoustic impedance of sands and shale looks almost in the same pattern. Applying this method allows the result of the sand and shale anomalies to be seen in a different way. EEI has the ability to review the estimation of elastic parameters. In this research, It used multiple parameters which analyzed directly by using an original log from well that are a /  ratio, pseudo gamma ray, pseudo NPHI, pseudo resistivity. The results of this study indicate that the use of angle optimization on EEI can interpret the intended zone of interest.
PEMODELAN BAWAH PERMUKAAN METODE PRE-STACK TIME MIGRATION (PSTM) ISOTROPY DAN METODE PSTM ANISOTROPY HIGH ORDER MOVEOUT (HOM) Luthfin, Ahmad; Susilo, Adi; Suroso, Teguh
Jurnal Neutrino Vol 8, No 2. APRIL (2016): JURNAL NEUTRINO
Publisher : Department of Physics, Maulana Malik Ibrahim State Islamic University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (613.427 KB) | DOI: 10.18860/neu.v8i2.3265

Abstract

Struktur bawah permukaan memiliki perlapisan yang sangat komplek, sehingga memungkinkan penjalaran gelombang seismik memiliki kecepatan yang berbeda tergantung arah rambatnya. Hal inilah yang mendasari perlunya proses pengolahan data dengan melibatkan parameter anisotropi (η). Umumnya data seismik memiliki nilai anisotropi dengan presentase tertentu, sehingga tidak semua data harus diproses dengan proses anisotropi. Ketepatan metode migrasi yang digunakan dapat menghasilkan gambar penampang struktur bawah permukaan dengan resolusi yang tinggi. Penelitian ini bertujuan untuk memodelkan struktur bawah permukaan dengan menggunakan metode PSTM isotopi (lapisan isotropi) sedangkan untuk lapisan anisotropi dimodelkan dengan metode PSTM anisotropi HOM. Hasil dari metode PSTM isotropi berupa citra, dimana lapisan pertama pada CMP 2073-CMP 2413 hasilnya jelek (beresolusi rendah), tetapi untuk lapisan kedua dan ketiga tampak bagus (beresolusi tinggi). Pada saat diproses dengan PSTM anisotropi, peneliti menggunakan nilai (η) sekitar 0,25 pada lapisan pertama. Berdasarkan hasil PSTM anisotropi pada CMP 2073-CMP 2413 model lapisan pertama menghasilkan citra beresolusi lebih tinggi (lebih bagus), sedangkan model lapisan kedua dan ketiga tidak mengalami kenaikan resolusi yang signifikan. Hal ini karena rasio far offset dan kedalaman lapisan pertama besar menyebabkan lapisan pertama mengalami efek anisotropi, sedangkan lapisan kedua dan ketiga tidak mengalami efek anisotropi
Determination of Wurung Crater Surface Temperature - Ijen East Java Using Landsat Image 8 as A Preliminary Study In the Geothermal Exploration Survey Surya Aji Ermanto; Sukir Maryanto; Adi Susilo
Natural B, Journal of Health and Environmental Sciences Vol 4, No 1 (2017)
Publisher : Natural B, Journal of Health and Environmental Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (715.338 KB) | DOI: 10.21776/ub.natural-b.2017.004.01.7

Abstract

Has conducted research using remote sensing methods being located in the mountain complex Ijen, Bondowoso - Banyuwangi, East Java as preliminary data to assist in the design of geothermal exploration survey. Remote sensing data used are images from Landsat 8. Landsat 8 infrared thermal image is processed as land surface temperature data. Processing land surface temperature using a single band. Methods in this study begins with finding NDVI (Normal Differential Vegetation Index), which is the value used to state how dense vegetation in an area. After it obtained the value of the fraction of vegetation and emissivity of land used for the determination of the distribution of land surface temperatures. The surface temperature of this land will be used as a guide in making the design of a geophysical survey in geothermal exploration further. Because geothermal areas associated with land surface temperatures were relatively high. Based on the results of data processing of remote sensing, land surface temperatures were relatively high in the area around the Kawah Wurung and Girimulyo that has a land surface temperature ranges between 3060ºC.
Integration of Topex Satellite Gravity and DEM SRTM Imagery for Subsurface Structure Identification at Tiris Geothermal Area, Lamongan Volcano Complex, Probolinggo, East Java Siombone, Salman Hamja; Susilo, Adi; Maryanto, Sukir
POSITRON Vol 12, No 2 (2022): Vol. 12 No. 2 Edition
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Univetsitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/positron.v12i2.56880

Abstract

Tiris area is one area that has geothermal prospects. Tiris area is located in the Tiris sub-district, Probolinggo regency, East Java. This study aims to identify the subsurface structure of the Tiris geothermal area using Topex gravity and DEM SRTM imagery data. The Topex gravity data obtained is still in Free Air Anomali (FAA) form, so it is necessary to make Bouguer and terrain corrections to get a complete Bouguer anomaly. A residual Bouguer anomaly is needed to study shallow subsurface structures. This anomaly is obtained by separating the residual and regional anomalies from the complete Bouguer anomaly using the moving average method. The study area has residual Bouguer anomaly values ranging from -0.5 to 2.9 mGal. The low residual Bouguer anomalies are seen in the body of the Lamongan volcano (LV) and the Tiris geothermal area (TGA). The study of subsurface structures is focused on the LV and the TGA through Forward 2D modeling. The A-A' cross-section illustrates the subsurface of LV, while the B-B' cross-section illustrates the subsurface of TGA. Cross-section A-A' modeling results show that the source of the low anomaly is in the second layer D2 = 1.24 g/  at a depth of 4.0 to 0.6 km below sea level and is suspected to be magma because it has a low density. Cross-section B-B' modeling obtained a low anomaly source at the second layer D2 = 2.03 g/  at a depth of 4.0 to 2.8 km below sea level and is suspected to be intrusive rock. The lineament display on the 2D of DEM SRTM map for the 45o and 135o azimuths shows that the TGA region has a high lineament density, and the orientation of the surface geological structure in the study area is dominant in a northwest-southeast direction.
IMPLEMENTASI ALAT UKUR SUHU DAN PH AIR UNTUK BUDIDAYA LOBSTER DENGAN ALGORITMA FUZZY LOGIC BERBASIS IoT Susilo, Adi; Cahyana, Yana; Lestari, Santi Arum Puspita; Rohana, Tatang
JATISI Vol 11 No 4 (2024): JATISI (Jurnal Teknik Informatika dan Sistem Informasi)
Publisher : Universitas Multi Data Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35957/jatisi.v11i4.8749

Abstract

Budidaya lobster air tawar memiliki prospek usaha yang cukup bagus, namun pertumbuhan usaha budidaya lobster yang ada belum selaras dengan permintaan, perihal ini teramati dari rendahnya tingkat produksi serta kualitas produk budidaya. Kualitas suhu dan pH air bisa mempengaruhi aktivitas dalam budidaya lobster air tawar, karena satu di antara faktor yang memberi pengaruh tingkat frekuensi molting serta kanibalisme menjadi rendahnya tingkat produksi budidaya. Agar mengatasi masalah tersebut maka dilakukan penelitian yang membuat alat dengan memanfaatkan algoritma fuzzy logic dan dipadukan teknologi Internet of Things. Berdasarkan capaian dengan melaksanakan uji sebanyak 10 kali, diketahui nilai error rata-rata pada sensor suhu yaitu 0,40% dan nilai error rerata pada sensor pH yaitu 0,22%.
Identifikasi Bidang Gelincir Dengan Menggunakan Metode Geolistrik Tahanan Jenis Sebagai Upaya Mitigasi Bencana Tanah Longsor (Studi Kasus : Dusun Payan, Desa Punten, Kota Batu) Pratiwie, Dessy Lutfiani; Susilo, Adi; Kamali, Ahmad Byan; Dwinanda, Indah Gumilang
Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Vol 10, No 2 (2024)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/gravity.v10i2.24135

Abstract

A sliding plane is a layer below the surface that is impermeable. The sliding plane becomes a place where the soil mass experiences movement so that the weathered layer above it experiences landslides following the slope. Payan Hamlet, located in Punten Village, Batu City, which is the research area, is included in a landslide-prone village as evidenced by the recapitulation of BPBD disaster data for Batu City during 2022, 6 landslides occurred. The geoelectric method used in this study is the Wenner configuration. It was used to identify the subsurface condition and interpret the slide plane and direction of the landslide. There are 5 trajectories in this study with 5 m electrode spacing. Based on the results of 2D data processing, the distribution of resistivity values in the research area is diverse. The resistivity value is divided into 3 (three) categories. The low resistivity category with a value of 13 - 51 Ωm is interpreted as a clay layer, the medium resistivity category with a value of 70 - 100 Ωm is interpreted as a tuff layer, and the high resistivity category with a value of 100 - 200 Ωm is interpreted as volcanic breccia. The interpretation of the layer that becomes the sliding field in the research area is the tuff layer with a depth of ± 3.8 - 4m. Based on the results of 2D data processing and calculation of the degree of slope, it can be analysed that the direction of the landslide leads to the southeast side of the research area. Installation of evacuation route signs around the research area is considered as a disaster mitigation effort that can be done
Deformation Of Lava Tounge at Semeru Volcano using Sentinel-1 DInSAR Chandra, Yuliana Iik Iswanti; Maryanto, Sukir; Susilo, Adi; Faridha Aprilia; Mayang Bunga Puspita
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 1 (2025): JGEET Vol 10 No 01 : March (2025)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.1.21444

Abstract

Indonesia is vulnerable to various natural disasters, especially volcanic eruptions.  Mount Semeru, located between Malang and Lumajang, is an active volcano with a history of significant eruptions.  The eruption on December 4, 2021, caused many casualties and infrastructure damage.  This research utilizes Sentinel-1 (SLC) satellite imagery to analyze deformation changes caused by the eruption, with a particular focus on DInSAR analysis to depict changes in the crater's shape.  Before the eruption, no significant volcanic activity was detected, resulting in no clear deformation changes, with a deflation range between -0.096 cm and -0.145 cm.  However, during the eruption, the outflow of lava forming lava tongues led to the formation of lava deposits that affected surface deformation.  During the eruption phase, the deformation changes indicate an inflation phase, with values ranging from 0.064 cm to 0.094 cm, reflecting surface movement due to the accumulation of volcanic material.  After the eruption, the deformation changes became more pronounced due to the perfectly and stably formed lava deposits, with an inflation value range between 0.037 cm and 0.079 cm, resulting in significant surface shifts.  Phase reading disturbances were also detected at several locations due to lahar flows that occurred during and after the eruption.  The results of this study provide beneficial information for the relevant parties in formulating disaster mitigation strategies related to Mount Semeru's activities, as well as in understanding the dynamics of surface deformation influenced by eruptions, lava flows, and the formation of lava tongues.
Sosialisasi Pemberdayaan Situs Geologi untuk Pengembangan Wisata Desa Purwodadi, Malang Susilo, Adi; Pamungkas, Mauludi Ariesto; Juwono, Alamsyah M.; Naba, Agus; Yudianto, Didik; Hasan, Muhammad Fathur Rouf
Mitra Akademia: Jurnal Pengabdian Masyarakat Vol 7 No 1 (2024): Mitra Akademia: Jurnal Pengabdian Masyarakat
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/mapnj.v7i1.6620

Abstract

Purwodadi Village is located in the southern part of Malang Regency with a karst area which presents a beautiful panorama of rock outcrops and forms a collection of geological sites, so this area has the potential to be developed as a geotourism. Optimizing the use of geological sites and digital technology in the tourism sector will bring extraordinary benefits. This service activity aims to socialize the empowerment of geological sites to support Purwodadi Tourism Village as a geotourism centre. This activity is in collaboration with the Purwodadi Village-Owned Enterprise "Dadi Mulyo" and the Purwodadi Village Government, who also participate in the activity. The socialization is carried out to provide an overview and demonstration of the empowerment of geological sites as well as efforts that can be made to introduce geological sites to the wider community, such as digitization through the website. While the geological survey aims to map the variety of geological sites owned by Purwodadi Village, which have the potential to attract visitors. The final target of this activity is to increase the number of tourist visitors in the hope of increasing income generating BUMDes and the local government.
Co-Authors Achmad Fakhrus Shomim, Achmad Fakhrus Adinegara, Aldo W. Agastya, Ida Bagus Oka Agung Teguh Wibowo Almais Agung, P. A. Maha Agus Naba Agus Pajrin Ahmad Hanif Al Fathoni, Ahmad Hanif Ahmad Luthfin Ahmad, Mustaffa A. Akhmad Jufriadi Alamsyah Muhammad Juwono ALathief Fashihullisan Andriansyah, M. Annabil, Achmad Achdan Aprilia, Faridha Asep Setiyo Budi Atok Yuliantono aunur rozaq B. Heri Purwanto Bagus Suryawan Bambang Aviantara Bambang Avianthara Barika Novanta Bunga Puspita, Mayang Chandra, Yuliana Iik Iswanti Dadan Dani Wardhana Denny Denny Yatmadi Deny Saputra Devita Fisas Riyanti Diah Ayu Chumairoh Dimas Pramudito Dipika Anggun Ardianti, Dipika Anggun Dolly Priatna dwi ajeng enggarwati Dwi Febriana Rochmah, Dwi Febriana Dwinanda, Indah Gumilang Eko Andi Suryo Fadly Usman Fajar Rakhmanto Fajrin, Rahma Annisa Fakhruddin, Fian Farid Hosni Faridha Aprilia Ganjar Sulastomo Gumelar, Dito Ibrahim Habibiy Idmi, Mohammad Halimah Halimah Hanafi, Muhammad Gusti Alif Zuhry Haniyyah, Saffanatul Hartiningtias, Diny Hermawan, Erwan Hetty Triastuty Hikhmadhan Gultaf Hisyam, Farizky Ibnu fajar sidik Idmi, Mohammad Habibiy Ilham Ilham indria restika anggraeni Intan Dewi Meutia Sari Juhari Juhari, Juhari Juwono, Alamsyah M Juwono, Alamsyah M. Kamali, Ahmad Byan Kardina, Dalendra Kevin Aulia Sandi Pratama Kukuh Suprayogi, Kukuh Kuni Azizah Lambertus Francisco Lestari, Santi Arum Puspita Maryanto - Mauludi Ariesto Pamungkas Mayang Bunga Puspita Moechammad Sarosa Monk, Kathryn A Mu'in, Fatkhul Muhajir Anshori Muhammad Fathur Rouf Hasan Muhammad Hendrasto Muhardi Muhardi Mujtaba, Mochammad Wafa Husain Muslih Udin Muslim, Teguh Musta, Baba Muwardi Sutasoma Nefrizal Nefrizal Nosevin Mangasi Onrizal Onrizal Osa, Dominggus Benyamin Pegatariana, I Ketut Ari Pratiwie, Dessy Lutfiani Putu Ayu Saraswati Razi, Mohd Adib Mohammad Rika Mayasyafa, Rika rizky gustiansyah Rofi Ridho Nurbilad, Rofi Ridho Rohana, Tatang Salman Hamja Siombone sania cahya maulida Sasmita Fidyaningrum Siti Jazimah Iswarin Sri Herwiningsih Sukir Maryanto Sunaryo - Surya Aji Ermanto Suryanto Suryanto Sutan Haji, Alexander T. SUTIKNO Teguh Suroso Titi Kalima Tri Deni Rachman Ulfah, Syarifatul Wasis M.AB, Wasis Wasis Wasis Wasis Wasis Welayaturromadhona Widyasandy, Dhony Yana Cahyana Yasa Suparman Yesika Wahyu Indrianti Yudianto, Didik Yunika, Nieske Ari Zainatul Afidah, Zainatul Zainorabidin, Adnan