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Journal : IPTEK The Journal for Technology and Science

Web-Based Tsunami Early Warning System Daniel Siahaan; Royke Wenas; Amien Widodo; Umi Yuhana
IPTEK The Journal for Technology and Science Vol 24, No 3 (2013)
Publisher : IPTEK, LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20882033.v24i3.552

Abstract

Tsunami is a serious threat to the island nation such as Indonesia. The tsunami disasters that were occurred in some parts of Indonesia have immerged the need for tsunami early warning system that is reliable and can be applied to the Indonesian archipelago. North Sulawesi is one of the areas prone to tsunamis since this area lies in the path called the ring of fire's. This article describes a tsunami simulation application for the north coast of North Sulawesi. Web-based applications were built so that they can be monitored online from anywhere and at anytime. This system reads the real-time seismic data that affect the North Sulawesi region from a number of sources. Dynamic and static data that are received are processed using data mining method to predict the chances of a tsunami, while flood flooding algorithm is used to visualize the map of affected areas of North Sulawesi. The resulting information is available in detail in the form of web pages and also through short message to the relevant authorities handling of the tsunami disaster in order for them to act in accordance with applicable standard operating procedures. With this application, the public can obtain information that is more accurate. Relevant authorities can conduct tsunami disaster mitigation measures more effectively.
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (652.116 KB) | DOI: 10.12962/j20882033.v30i1.5004

Abstract

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.
Co-Authors Adhitama Rachman Adib Banuboro Aditama, Ferdian Yoga Afif, Hamzah Ahmad Iqbal Hamami Alam, Kharis Aulia Ali Masduqi Andradit, Fikrizan Anik Hilyah Anindya Putri R Anindya Putri R Anwar, Nadjadji Arief Alihudien Arief Ismanto Arif, Musta'in Aripin, Pegri Rohmat Ariyanti, Nita Ary Iswahyudi Aryaseta, Bagas Aryaseta, Bagas Bahri, Ayi Syaeful Bella Esti Ajeng Syahputri Bimakurnia Septadi Chemistra, Paul Christopher Salim Daniel Oranova Siahaan Dhea Pratama Novian Dhea Pratama Novian Putra Dwa Desa Warnana Eko Puswanto Elfarabi Elfarabi Elfarabi, Elfarabi Erik Sapta Perbawa Fajar, M. Haris Miftakhul Fakhriar Naufaldi Faqih Ulumuddin Febrianty, Angeline Ferdian Yoga Aditama Fikri Abdullah Fikrizan Andradit Firman Syaifudin Fuadur K Ghazalli, Muhammad Gita Akbar Satriawangsa Gita Akbar Satriawangsa Hamami, Ahmad Iqbal Hamzah Afif Hanif Dhiyaz Ulhaq F Hardyani, Putry Vibry Hetty Triastuty Hetty Triastuty Hilyah, Anik I Putu Artama Wiguna Ira Mutiara Anjasmara Ira Mutiara Anjasmara, Ira Mutiara Irwan Setyowidodo, Bagus Jaya Santosa Ismantor, Arief Jaka Rahadiansyah Juan Pandu Gya Nur Rochman K, Fuadur Zakki Ketut Dewi Martha Erly Kharis Aulia Alam Kurniawan, Akbar Dwi Lestari, Wien Lukman Noerochim Lutfi Zakariah M Haris Miftakhul Fajar M, Mahendra A M. Singgih Purwanto Mahendra A M Mahendra Wirayudhatama Mariyanto Mariyanto Marsha Khairia Alfany Moh Singgih Purwanto Moh. Singgih Purwanto Muhammad Ghazalli Muhammad Ghazalli Muhammad Mifta Hasan Muhammad Mifta Hasan Muhammad Nurul Puji Muhammad Reza Shalahuddin Noor Muhazzib F Muthiul Padlilah N R, Juan Pandu G Naufaldi, Fakhriar Nefrizal Nefrizal Nefrizal Nefrizal Nizar Dwi Riyantiyo Nova Nevila Rodhi Novian, Dhea Pratama Nugroho, Wicaksono Dwi Nurlaili Humaidah Nurokhim, Arif Padlilah, Muthi’ul Pamungkas, Adjie Paul Chemistra Pegri Aripin Pegri Rohmat Aripin Purwanto, M Singgih Purwanto, Mohammad Singgih Putra Sukandar, Eka Cahya Putry Vibry Hardyani Rahadiansyah, Jaka Rahmaningtyas, Anindya Putri Rahmatun Inayah Ramadhanty, Aura Zahra Rizky Rahmadi Wardhana Rizky Rahmadi Wardhana Robi Alfaq Abdillah Roslee, Rodeano Royke Wenas Salim, Christopher Septadi, Bimakurnia Singgih Purwanto Siti Kamilia Aziz Sugeng Pribadi Sugeng Pribadi Syabibah Zakiyya Zukhrufah Syahputri, Bella Esti Ajeng Syaifuddin, Firman Syaifuddin, Firman Tatas, Tatas Thufeil Amr Adausy Umi Yuhana Ummi Fadlilah K Utomo, Agung M. Wardhana, Rizky Rahmadi Wardhana, Rizky Rahmadi Widya Utama Wijaya, I Putu Krishna Yoga Satria Iswandaru Iswandaru Zahrotin Jamilah Zahrotin Jamilah Zakaria, Moch Lutfi