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All Journal Jurnal Teknik ITS Jurnal Sains dan Seni ITS IPTEK The Journal of Engineering IPTEK Journal of Proceedings Series IPTEK The Journal for Technology and Science JFA (Jurnal Fisika dan Aplikasinya) Jurnal Spektra Jurnal Geosaintek Journal of Physics: Theories and Applications Jurnal Penelitian Pendidikan IPA (JPPIPA) Elipsoida : Jurnal Geodesi dan Geomatika Indonesian Physical Review Jurnal Rekayasa Infrastruktur Hexagon Publikasi Riset Orientasi Teknik Sipil (Proteksi) Darmabakti : Junal Pengabdian dan Pemberdayaan Masyarakat Sewagati Journal of Engineering and Technological Sciences Jurnal Geosaintek

Dwa Desa Warnana

Department Of Geophysical Engineering, Institut Teknologi Sepuluh Nopember, Surabaya

Author-ID : 412994

Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Social Sciences Transportation Other

Published : 96 Documents Claim Missing Document

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Identifikasi Intrusi Air Laut Pada Air Tanah Menggunakan Metode Induced Polarization Studi Kasus Daerah Surabaya Timur Bagas Aryaseta; Dwa Desa Warnana; Amien Widodo
Jurnal Geosaintek Vol 2, No 3 (2016)
Publisher : Institut Teknologi Sepuluh Nopember

Sebagian besar air tanah di wilayah kota Surabaya sudah mengalami intrusi air laut dan memiliki kadar garam yang tidak sesuai standar air minum. Permasalahan akifer air tanah yang sudah terintrusi air laut diidentifikasi menggunakan metode Induced Polarization dilengkapi dengan data sumur dan data resistivity sebagai data pelengkap. Pengukuran data sumur dilakukan di beberapa lima belas titik di Surabaya Timur yang hasilnya menunjukkan parameter-parameter air seperti salinitas, TDS, konduktivitas, dan pH. Pengukuran Induced Polarization dan Resistivity metode Wener-Schlumberger dilakukan di tiga lintasan di Surabaya Timur yang tersebar di daerah air asin, air payau rendah, dan air tawar. Penampang Chargeability dan Resistivity memiliki penetrasi kedalaman 9 m menunjukkan hasil yang cukup baik dalam mengidentifikasi akifer air tanah. Akifer dengan nilai resistivitas rendah (6.81 ohm.m) dan chargeabilitas rendah (<0.302 msec) besar kemungkinan merupakan air asin.

Karakterisasi Reservoir Karbonat Dengan Menggunakan Metode AVO Inversi Studi Kasus Lapangan “Ngawen” Putri Rida Lestari; Dwa Desa Warnana; Farid Marianto
Jurnal Geosaintek Vol 3, No 2 (2017)
Publisher : Institut Teknologi Sepuluh Nopember

Kebutuhan minyak dan gas bumi semakin meningkat, sehingga diperlukan adanya peningkatan eksplorasi hidrokarbon. Eksplorasi hidrokarbon bertujuan untuk mengetahui persebaran hidrokarbon pada reservoir. Karakteristik dari batuan reservoir sangat penting diketahui untuk mendapatkan reservoir yang bagus. Salah satu metode untuk mengetahui karakteristik batuan reservoir yaitu AVO (Amplitude Versus Offset) Inversi. Metode AVO juga bisa digunakan untuk mengetahui persebaran litologi. Dalam penelitian ini digunakan metode AVO Inversi, untuk mengetahui karakteristik reservoir pada batuan karbonat, persebaran litologi, dan persebaran hidrokarbon dengan studi kasus di lapangan Ngawen. Data yang digunakan dalam penelitian ini yaitu data seismik berupa Pre-stack gather 3D di area North East Java Basin, dan dua data sumur (sumur Ngawen 1 dan sumur Ngawen 2). Penelitian ini difokuskan pada Formasi Ngimbang Karbonat. Hasil analisis crossplot menunjukkan bahwa parameter log gamma ray, Pimpedace, S-Impedance, dan Lambda Mu-Rho (LMR) dapat mengidentifikasi litologi (porous carbonate, tight carbonate, dan shale) dan fluida (oil, gas, dan water) dengan baik. P-Impedance dan Lambda MuRho (LMR) hasil AVO Inversi menunjukkan adanya zona reservoir dan fluida hidrokarbon pada porous carbonate dengan baik. Zona reservoir karbonat ditunjukkan dengan nilai P-Impedance dan nilai Lambda Mu-Rho (LMR) yang relatif tinggi. Zona fluida hidrokarbon memiliki nilai P-Impedance dan nilai LMR yang rendah.

Landslide Analysis Using Seismic Refraction Tomography And MASW: a Case Study in Ponorogo, East Java, Indonesia Yusri Prayitna; Widya Utama; Dwa Desa Warnana
IPTEK The Journal of Engineering Vol 5, No 2 (2019)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23378557.v5i2.a5025

Ponorogo district morphology form consisting of highlands and hills make this area vulnerable to landslides. Based on the BNPB (National Disaster Management Agency) data from 2013 to 2017, 77 landslides and 35% have occurred in Ngrayun and Slahung sub-districts. One area that has the potential to experience landslides is Tugurejo village in Slahung District. This study aims to determine the physical properties of subsurface rocks using SRT (Seismic Refraction Tomography) and MASW (Multi-channel Analysis of Surface Waves). The seismic velocity distribution defined from the SRT and MASW at the study sites shows a zone with a higher porosity that is interpreted to represent the level and depth of rock mass movement. P-wave velocity and S-wave indicates very low velocity of 500 – 1200 m/s and 100 – 250 m/s at depths up to 5 m.

3D Resistivity Data Modelling to Identify Aquifer Geometry by Qualitative Analysis (Field Study: PDAM Surabaya Groundwater Conservation Area, Pasuruan) Ayi Syaeful Bahri; Amien Widodo; Widya Utama; Dwa Desa Warnana; Pegri Rohmat Aripin; Adib Banuboro; Robi Alfaq Abdillah
IPTEK Journal of Proceedings Series No 6 (2017): The 3rd International Conference on Civil Engineering Research (ICCER) 2017
Publisher : Institut Teknologi Sepuluh Nopember

The resistivity method is one of the geophysical methods used to identify the aquifer layer by utilizing the rock response to the flow of electric current. This method considered more effective and can give a good subsurface cross-section, especially the fluid response. In this research, 3D modelling for identify geometry of subsurface geological structures of this study focus in three area (Plintahan, Duren Sewu, and Karangjati) using 2D resistivity data. Data Measurement of 2D resistivity using Wenner-Schlumberger configuration with length of each line is 155 meters and the target depth is 30 meters. The purpose of this configuration is to get an inverse with a resolution that is good to the lateral and vertical. The results show that the types of rocks in the research area was clay, sand and sandy shale with resistivity value 50-150 ohm-meter where sand rocks interpreted as aquifer rocks at depths of 2-7 meters and a thickness of 2-5 meters. The result of the resulting 3D modelling showed that the aquifer layer in Plintahan area showed the geological continuity with anticline geometry, in another area the aquifer layer in Durensewu - Karang Jati area showed the aquifer geometry prediction but there is no continuity of the structure of each other.

Tsunami Risk Mapping of Lumajang District Using Geographic Information System (GIS) Amien Widodo; Dwa Desa Warnana; Juan Pandu Gya Nur Rochman; Firman Syaifuddin; Erik Sapta Perbawa; Ary Iswahyudi; Wien Lestari
IPTEK Journal of Proceedings Series No 6 (2017): The 3rd International Conference on Civil Engineering Research (ICCER) 2017
Publisher : Institut Teknologi Sepuluh Nopember

Indonesia lied among the three of world major plates so that several districts along the southern coast of Java Island were vulnerabled to the tsunami including Lumajang. South coast of Lumajang had high population density and settlements and high levels of government and economic activity. Therefore, it is necessary to know the level of insecurity and vulnerability to the tsunami in order to be utilized as input of mitigation data for the preparation of regional spatial plans (RTRW) based on tsunami risk level. The objective of this research is to arrange the regional risk map for tsunami in Lumajang Regency using Geographic Information System (GIS) through approach of insecurity and vulnerability analysis of tsunami. The insecurity rate is analyzed based on seismicity map and run-up data of tsunami event in Lumajang District. Vulnerability approach used multicriteria such as land elevation, slope, coastal morphometry, land use, distance from the coast and distance from the river. The methodology that was used included data collections of both primary and secondary data such as satellite imagery of earth map, Lumajang statistical data. Each vulnerability data variable was processed to result a weighting and scores that its become the parameters for making a regional tsunami vulnerability map. The results showed three level of risks in five subdistricts that directly adjacent to the Southern Coast such as Yosowilangun, Kunir, Tempeh, Pasirian, and Tempursari. The high tsunami risk which covered almost along the coast, the ramps morphology, without any protective vegetation and human activities at the site while the medium of tsunami risk which were in areas with elevation more higher than the coastal and the low of tsunami risk had variations of topography, quite far from the coast and less human activities.

Identification of Soil Contamination using VLF-EM and Resistivity Methods: A Case Study Rahmatun Inayah; Bagus Jaya Santosa; Dwa Desa Warnana; Firman Syaifuddin; Juan Pandu Gya Nur Rochman; Wien Lestari; Amien Widodo
IPTEK The Journal for Technology and Science Vol 30, No 1 (2019)
Publisher : IPTEK, LPPM, Institut Teknologi Sepuluh Nopember

Hazardous waste is a waste with properties which can pollute and damage the environment, human health, and other living things. Lakardowo is a village that is suspected of being contamination by hazardous waste derived from industrial activities. Measurements with the VLF-EM and Resistivity method were used in this study. In addition, ground water level mapping and soil sampling in locations around the industry were conducted for the XRF test. Groundwater mapping results show that groundwater flow lead to the Northeast-South and Southwest of the industrial site. The soil samples that have been tested by XRF show the presence of heavy metals, wherein hazardous wastes generally contain various types of heavy metals that are conductive or have low resistivity values. Quantitative interpretation of VLF-EM data shows the presence of low resistivity anomalies at several measurement sites, which are suspected to have been contaminated with soil by waste. Resistivity data processing results, showing a low resistivity anomaly (≤ 3 Ω.m) located to the north (near an industrial site) and spreading towards the southwest along the measurement path. The result of a combination of quantitative interpretations of both methods, obtained, the direction of anomalous flow of hazardous waste moves southeastward and towards deeper soil coating following the direction of rock coating.

PENDUGAAN POTENSI AIR TANAH DI DAERAH SUMBA TIMUR DENGAN MENGGUNAKAN DATA CITRA SATELIT DAN GEOLISTRIK Septa Erik Prabawa; Ary Iswahyudi; Dwa Desa Warnana
Elipsoida : Jurnal Geodesi dan Geomatika Vol 3, No 02 (2020): Volume 03 Issue 02 Year 2020
Publisher : Department of Geodesy Engineering, Faculty of Engineering, Diponegoro University,Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/elipsoida.2020.9203

Telah dilakukan kajian pendugaan potensi air tanah di daerah Sumba Timur dengan menggunakan data citra satelit SRTM dan geolistrik tahanan jenis. Citra SRTM digunakan untuk analisa morfologi bentang alam sedangkan pengukuran geolistrik bertujuan untuk mendapatkan gambaran litologi bawah permukaan tanah untuk mendapatkan potensi air tanah. Survei sebaran mata air dilakukan untuk menguatkan analisis data. Data SRTM menunjukkan morfologi bentang alam berupa dataran batugamping berundak mulai dari pantai di sisi Timur kearah Barat. Mata air ditemukan berada di kaki dataran berundak yang merupakan perpotongan topografi. Pengolahan data geolistrik menunjukkan bahwa susunan batuan bawah permukaan tanah daerah kajian terdiri dari batugamping terumbu yang merupakan anggota Formasi Kaliangga sebagai lapisan berpori pembawa air dan batupasir tufan anggota Formasi Kananggar sebagai lapisan kedap penahan air. Morfologi berupa perundakan batugamping di sebagian besar area kajian menjadikan keterdapatan mata air berada di kaki undak atau perpotongan topografi. Hal ini menguatkan dugaan bahwa air permukaan meresap kebawah menembus pori batugamping terumbu kemudian tertahan oleh batupasir tufan dan keluar sebagai mata air di perpotongan topografi. Hal ini konsisten dengan hasil pengukuran geolistrik yang menunjukkan dominasi batugamping terumbu di area kajian dan minimnya curah hujan menjadikan daerah kajian menjadi daerah kering.

Local Site Effects Evaluation Using Microtremor Measurements at North Side of Pandan Mountain Samsul Hidayat; Dwa Desa Warnana; Sorja Koesuma; C Cari
Journal of Physics: Theories and Applications Vol 1, No 2 (2017): Journal of Physics: Theories and Applications
Publisher : Universitas Sebelas Maret

Disaster mitigation has been undertaken to reduce the impact of loss or damage caused by the earthquake. For disaster mitigation purpose, it is necessary to conduct a local geological assessment. The horizontal to vertical spectral ratio (HVSR) of microtremor analysis is very popular in the context of seismic micro-zonation. Microtremor method is cheap, data acquisition is easy, and does not cause noise, so suitable for use in residential areas. This research aims to determine the distribution of the natural frequency value, the amplification factor value, and the soil vulnerability index value. This study was conducted geographically between 7°26'17.45" – 7°26'53.16" S and 111°47'14.76" – 111°48'7.06" E. Data processing using HVSR analysis method on Easy HVSR software. The results showed that the natural frequency (fo) values range 0,95 Hz to 8,3 Hz and the amplification factor values range 2,05 to 8,67. From the result data of the natural frequency and the amplification factor, the soil vulnerability index can be calculated. The vulnerability index (Kg) value ranges from 1,09 to 68,33. The northeast side of the study area is indicated as a weak zone where have high potential to damage when the earthquake occurred.

Slaughterhouse Waste Treatment Equipment to Produce Plant Fertilizer and Fish Feed Rindi Kusumawardani; Putu Dana Karningsih; Nani Kurniati; Moses Laksono Singgih; Hari Supriyanto; Sutikno Sutikno; Dwa Desa Warnana; Irene Malilung Sitanggang
IPTEK Journal of Proceedings Series No 1 (2023): The 1st International Conference on Community Services and Public Policy (ICCSP) 2022
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2023i1.16362

Chicken slaughter process waste is divided into two types, solid waste and liquid waste. Almost all of the waste generated by the chicken slaughter process can be reused. Lately, Vocational High School in Pasuruan, East Java, has Livestock Agribusiness unit that made a waste treatment program to deal with the problem of waste from the surrounding chicken slaughter process. However, some chicken slaughter process waste cannot be reprocessed and is directly dumped into the sewer due to limited technology. The type of waste that cannot reprocess is blood and chicken feather waste. This research aims to process the waste into high-quality fish food by applying the principle of automation and integrating machines with existing chicken cutting machines. The application of this appropriate technology begins with observing the existing conditions and the process of designing, manufacturing, and testing equipment carried out at Vocational High School in Pasuruan. The research resulted in designing and manufacturing machines that support waste treatment of blood and chicken feathers from Livestock Agribusiness. The machine design consists of three main components: a blood and chicken feather grinder, a vertical mixer, and a fish feed press machine. The expectations of this machine design will support productivity and concern for waste management, which can also build environmentally friendly standards in the Livestock Agribusiness unit of Vocational School in Pasuruan.

Manufacturing of Soil Coefficient Permeability Meter with Data Acquisition System Based on Internet of Things (IoT) Fahrur Aslami; Elysa Nensy Irawan; Melania Suweni Muntini; Dwa Desa Warnana; Ahmad Syahdi Al Khawarizmi
Jurnal Fisika dan Aplikasinya Vol 19, No 2 (2023)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24604682.v19i2.14045

Soil permeability coefficient and measuring instrument using a data acquisition system based on Internet of Things (IoT) has been successfully made. The measuring equipment uses the falling head permeameter concept. MPX10GP sensor is used to measure water level. The measurement range is 6-40 cm water level, to obtain + 36 permeability coefficient value of each 1 cm. The data from the subsequent measurement systems is transmitted into the internet network so that it can be accessed by smartphone. Based on the measurement results of three samples, the slopes of Mount Ngantang have a soil permeability coefficient value of 0.0016 cm/s, the Institut Teknologi Sepuluh Nopember (ITS) pond embankment is 0.0005 cm/s, and the Bengawan Solo River embankment is 0.0002 cm/s. These results match with the reference and the difference value is only 2.7%. By using this research method, it is expected to draw up a map of the area that is prone to landslides quickly and accurately.

Co-Authors Abdurahman Wafi Adhatus Solichah Ahmadiyah, Adhatus Solichah Adib Banuboro Adib Banuboro Afdhal, Ramsyi Faiz Ahmad Iqbal Hamami Ahmad Syahdi Al Khawarizmi Aisha, Fahrenzy Yona Al Viandari, Nourma Alfatih, Ismail Zaky Alpius Dwi Guntara Amien Widodo Anggi Arwin Pratama Anicetus Wihardjaka Annisa R. Varhana Arief Alihudien Arief Alihudien, Arief Arif Darmawan Arif Darmawan Ariyanti, Nita Ariyanti, Nita Arsyadi, Ahmad Qomaruddin Arsyadi, Ahmad Qomaruddin Ary Iswahyudi Arya Dwi Candra Aryaseta, Bagas Aryaseta, Bagas Asmarani, Pingky Kartika Asmaul Mufida Aviani, Nisya Bagus Jaya Santosa Bahri, Ayi Syaeful Bahri, Fuad Aulia Bayu Tambak Samudra Bayu Tambak Samudra Budiraharjo, Satrio C Cari Darmawan, Arif Darmawan Daryono, Mudrik Rahmawan Deby Nur Sanjaya Dhea Pratama Novian Putra Dhea Pratama Novian Putra Dhea Pratama Novian Putra Diana, Nur Ayu Diptya Mas Nugraha Eki Komara Elysa Nensy Irawan Erik Sapta Perbawa Fahrenzy Yona Aisha Fahrur Aslami Fajar, M. Haris Miftakhul Faqih Ulumuddin Farhan, Eta Farid Hendra Pradana Farid Marianto Farid Marianto Faza Nabeel Fikrizan Hilmy Andradit Firman Syaifudin Garini, Sherly A. Garini, Sherly Ardhya Hamami, Ahmad Iqbal Handaningtyas, Inggrid Hari Supriyanto Harsano Jayadi Herman Pratikno, Herman Heru Mirmanto Hibatullah, Muhammad Irsyad Hilyah, Anik Hutapea, Merry C. Ilham Adi Pratama Imaaduddiin, Muhammad Hafiizh Imam Gazali Indriani, Rista F. Indriani, Rista Fitri Innanda Rizqiani Putri Insani, Alif N. F. Ira M. Anjasmara, Ira M. Irene Malilung Sitanggang Irene Malilung Sitanggang Irshadibima, Raden Bagus Fauzan Irwan Setyowidodo, Bagus Jaya Santosa Ismail Zaky Al Fatih Ismail Zaky Alfatih Januarti Jaya Ekaputri Juan Pandu G.N.R. Juan Pandu Gya Nur Rochman Khairul Yadi Khairul Yadi Komara, Eki Kurniati, Nani Kusumaningrum, Ajeng Wardhani Lestari, Putri Rida Lestari, Wien Lila Yuwana Lutfi Zakariah M Haris Miftakhul Fajar M. Singgih Purwanto Marianto, Farid Mariyono, M. Meidji, Icha Untari Merry C. Hutapea Moch Lutfi Zakaria Moh Dahlan Th Musa Mohammad Singgih Purwanto Moses Laksono Singgih Muhammad Arif Budiman Muhammad Fawzy Ismullah Massinai Muhammad Irsyad Hibatullah Muhammad Noor Muhammad Reza Shalahuddin Noor Muthmainnah, Melania Suweni Muntini N R, Juan Pandu G Nabila, Debby Dea Naifah, Sonia Ratnaduhita Nurani Natassa Adi Putri Natassa Adi Putri Nefrizal Nefrizal Nefrizal Nefrizal Nila Sutra Nila Sutra Nizar Riyantiyo Noor, Muhammad Reza Shalahuddin Nourma Al Viandari Nur Jannah, Afni Nur Rochman, Juan Pandhu Gya Palgunadi, Kadek H. Palgunadi, Kadek Hendrawan Pegri Rohmat Aripin Prabawa, Septa Erik Pratama, Dandi S. Pratama, Ilham Adi Prataman, Ilham Adi Priatin Hadi Wijaya Priatin Hadi Wijaya Priatin Hadi Wijaya Priatin Hadi Wijaya Wijaya Putra P fikri Muhammad Putra P, Muhammad Fikri Putra Sukandar, Eka Cahya Putra, Dhea P. N. Putra, Dhea Pratama Novian Putra, Riyan Afnanda Putri Rida Lestari Putri Rida Lestari Putri, Innanda Rizqiani Putri, Natassa Adi Putu Dana Karningsih Rachman, Gazali Raden Bagus Fauzan Rahmaningtyas, Ivana Rahmatun Inayah Ramadhani, Annisa V. Rashida, Ailsa Dahayu Ria Asih A. Soemitro Ria Asih A. Soemitro Ria Asih Aryani Soemitro Rindi Kusumawardani Rismayanti, Hasibatul Farida Rismayanti, Hasibatul Farida Rista Fitri Indriani Riyantiyo, Nizar Dwi Rizky Rahmadi Wardhana Rizky Rahmadi Wardhana Robi Alfaq Abdillah Robi Alfaq Abdillah Ry, Rexha Verdhora Samsul Hidayat Samudra, Bayu Tambak Satrio Budiraharjo Sherly Ardhya Garini Sherly Ardhya Garini Sidi, Amor K. Simanjuntak, Andrean Vesalius Hasiholan Sirait, Anne Meylani Magdalena Sorja Koesuma Sri Widiyantoro Suef, Mokhammad Sugeng Kurniawan Sugeng Kurniawan Suhartinah, Suhartinah Suriani, Putri Dwi Suryanto, Wiwit SUTIKNO Sutikno Sutikno Sutikno Sutra, Nila Sutra, Nila Syabibah Zakiyya Zukhrufah Syaeful Bahri Syaifuddin, Firman Syaifuddin, Firman Syaifudin, Firman Taufik Fajar Nugroho Totok Wijayanto Totok Wijayanto, Totok Triahandini, Agnis Trihanyndio Rendy Satrya Ulumuddin, Faqih Varhana, Annisa R. Viandari, Nourma Al Wardhana, Rizky Rahmadi Wardhana, Rizky Rahmadi Widya Utama Widya Utama Wihardjaka , Anicetus Wihardjaka, Anicetus Wijaya, R. Aldi Kurnia Wijaya, R. Aldi Kurnia Wiscahyo, Gelar yadi, Khairul Yani, Beta Fitri Yashar, Putri Nur Fadhilah Yudha Prasetyawan Yusri Prayitna Zakaria, Moch Lutfi Zukhrufah, Syabibah Zakiyya

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