Article Per Year (5 Year)
p-Index From 2019 - 2024
2.096
P-Index
This Author published in this journals
All Journal Jurnal Sains Materi Indonesia BULETIN FISIKA Kappa Journal
Komang Ngurah Suarbawa
Program Studi Fisika, FMIPA, Universitas Udayana, Kampus Bukit Jimbaran, Badung, Bali, Indonesia, 80361
Astronomy Earth & Planetary Sciences Electrical & Electronics Engineering Environmental Science Materials Science & Nanotechnology Physics Other

Published : 20 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 20 Documents
Search

 1   2 
Identifikasi Deformasi Pulau Bali Berdasarkan Rekaman Data GPS, Menggunakan Software GAMIT/GLOBK 10.6 Komang Ngurah Suarbawa; I Ketut Sukarasa; Elvin Riyono
BULETIN FISIKA Vol 22 No 1 (2021): BULETIN FISIKA February Edition
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/BF.2021.v22.i01.p07

Abstract

Research on the tectonic activity of the island of Bali has been carried out which aims to identify and determine the direction of the deformation movement of the island of Bali. The research was conducted using local GPS data recorded at eleven observation points on the island of Bali. Data processing was carried out using GAMIT / GLOBK 10.6 SOFTWARE and several supporting software such as teqc to test the quality of GPS and GMT recording data to plot the processed data. The results showed that there was a shift in the observation point which indicates tectonic activity on the island of Bali. The point shift pattern shows a shift that tends to be east to southeast. The deformation pattern is thought to have occurred due to tectonic plate activity in the eastern and southern parts of the island of Bali.
ANALISIS RISIKO BENCANA GEMPABUMI DI WILAYAH NUSA TENGGARA BARAT Melki Adi Kurniawan; Komang Ngurah Suarbawa; Ardhianto Septiadhi
BULETIN FISIKA Vol 18 No 1 (2017): BULETIN FISIKA
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

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

Abstract

An investigation of risk identification earthquake disaster in Nusa Tenggara Barat by three factors: the danger factor of earthquakes is Peak Ground Acceleration(PGA), vulnerability factor is population density by district, as well as the capasity factors are HDI (Human Development Index) by district in the province of West Nusa Tenggara has be done. PGA value calculation was performed using the attenuation function Fukushima and Tanaka with earthquake parameter data from 1970 - 2014 with the criteria of magnitude ? 4.5mB, depth ? 60 km and the epicenter in the range of 7.5o - 12o and 115o-120o BT and for disaster risk index calculation earthquake using AHP (Analytical Hierarchy Process). From the calculation of the obtained regions with earthquake disaster risk levels are highest are southern Dompu, Mataram, Bima, northern Bima Regency while the lowest West Sumbawa regency and southern Sumbawa regency.
Human Voice Recognition by Using Hebb Artificial Neural Network Method k krisna g; I Gusti Agung Widagda; Komang Ngurah Suarbawa
BULETIN FISIKA Vol 19 No 1 (2018): BULETIN FISIKA
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

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

Abstract

It has been created a program to recognize human voice by using artificial neural network (ANN). The ANN method used is Hebb. Hebb was chosen because it is the simplest ANN so the training and testing process is faster than other methods. Designing the program is started by designing Hebb’s architecture and design of GUI (Graphical User Interface) using Matlab R2009a. The design of Hebb's architecture consists of 4500 inputs and 3 outputs. The GUI design of the program consists of three main sections: recording panels to record sample sounds, training panels to determine the weighted value and bias of the training results according to the Hebb training algorithm, and the testing panel to test the test sounds according to the Hebb testing algorithm. After program design, proceed with the testing of the program. Testing of the program starts with the sound recording of samples from 8 different people using the record panel. Each person has 1 voice sample for training data. Then proceed with the Hebb training process using the training panel, weight and bias value displayed on the training panel. After the weight and bias values ??are obtained, proceed with the Hebb testing process using 16 test sound data consisting of 8 sound data equal to training data and 8 noise data. From the testing program process obtained a result of 100% for the level of recognition of the same voice data with training data and for noise data has a recognition rate of 87.5%.
PENDETEKSIAN INTRUSI AIR LAUT DENGAN METODE GEOLISTRIK RESISTIVITAS KONFIGURASI WENNER DI DESA CANDIKUSUMA KABUPATEN JEMBRANA BALI I Nyoman Darma Putra; Komang Ngurah Suarbawa; I Made Satriya Wibawa
BULETIN FISIKA Vol 14 No 1 (2013): BULETIN FISIKA
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

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

Abstract

Studies have been conducted to detect the intrusion of sea water in the Candikusuma village, Melaya District, Jembrana regency, Bali. Sea water intrusion is the ground water contamination in the soilto make fresh water into salt. To determine the presence of sea water below the soil surface be used geoelectric resistivity method because sea water has aresistivity 0.2 ?m. Geoelectric resistivity method based on Ohm's law, aims to find a variety of material sundera layer of soil based on the distribution of resistivity values??. By injecting current through two current electrodes the potential can be measured by the electro depotential. Variations of resistivity will be obtained If the distance of each electro demodified, according to Wenner configuration. Smallest space used for all tracksis 5 m. The experiment data analyzed with the Software Res2 dinv. From the Software Res2 dinv obtained cross-section2-D, which indicates the presence of sea water on track1 which has a length 80 m with a resistivity 0.291 ?m, the length of track2 is 150 m with a resistivity 0.257 ?m, the length of track 3 is 150 m with a resistivity 0.203 ?m and track 4 with alength of 150 m has a resistivity of 0.287 ?m. From the analysis of the Software Res2 dinv sea water intrusionin the village Can dikusuma ± 470 m from the beach. Starting from the coordinates to coordinate .
Penentuan Jenis Sesar pada Gempabumi Lombok Tanggal 1 Juli sampai 31 Desember 2018 Menggunakan Metode Mekanisme Fokus Ni Nyoman Susi Kesuma Wardani; Komang Ngurah Suarbawa; Ridwan Kusnandar
BULETIN FISIKA Vol 22 No 2 (2021): BULETIN FISIKA August Edition
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/BF.2021.v22.i02.p06

Abstract

Research has been conducted on determining the type of fault in Lombok earthquake on July 1 to December 31 2018 using the focal mechanism method. The focal mechanism is a method of reviewing fault parameters that include strike, dip and rake based on the initial movement direction of P wave recorded by the station, which then projected into a focal ball. There are 246 stations are used in several countries. There were 139 earthquakes with M?4.0 on July 1 to December 31 2018, at coordinates 7.0? S-9.0? S and 115.5? E-117.5? E. The result of fault field parameters is at nodal 1 strike=52?-149?, dip=6?-75?, rake=39?-143? and at nodal 2, strike=233?-313?, dip=18?-84?, rake=58?-119?, then projected into focus ball. Based on these results shows that earthquakes occur as a result of thrust fault movement.
Effect of Tropical Cyclones on High Waves in the Southern Regions of Java, Bali, and Nusa Tenggara (Case Study of Tropical Cyclones Claudia) Kholidatul Islamiyah; Komang Ngurah Suarbawa; Kadek Sumaja
BULETIN FISIKA Vol 24 No 1 (2023): BULETIN FISIKA February Edition
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/BF.2023.v24.i01.p08

Abstract

Geographically, Indonesia is located in areas below latitude 20° (both north and south) and has little chance for tropical cyclones to grow. Tropical cyclones are storms with great strength that can affect the atmosphere and water conditions in the territory of Indonesia. This study aims to analyze the characteristics of tropical cyclone Claudia and the effect of the cyclone on sea wave conditions in the southern regions of Java, Bali and Nusa Tenggara. The analysis carried out includes data from the Himawari-8 satellite IR channel used to monitor the intensity of wind speed and air pressure at the center of the cyclone using the Dvorak T-number technique. Sea wave data to describe the condition of sea waves. The results of data processing showed that tropical cyclone Claudia had a life span of 16 days with a maximum T-number of 4.5. The impact of tropical cyclone Claudia on sea wave conditions occurs when the tropical cyclone enters the mature stage, namely in the southern waters of Central Java to East Nusa Tenggara. Abstrak Secara geografis wilayah Indonesia berada pada daerah di bawah lintang 20° (baik Utara maupun Selatan) memiliki kemungkinan yang kecil untuk tumbuhnya siklon tropis. Siklon tropis merupakan badai dengan kekuatan yang besar yang dapat mempengaruhi kondisi atmosfer dan perairan di wilayah Indonesia. Penelitian ini bertujuan untuk menganalisis karakteristik siklon tropis Claudia dan pengaruh siklon tersebut terhadap kondisi gelombang laut di wilayah Selatan Jawa, Bali dan Nusa Tenggara. Analisis yang dilakukan yaitu meliputi data satelit Himawari-8 kanal IR digunakan untuk memantau intensitas kecepatan angin dan tekanan udara di pusat siklon dengan teknik Dvorak T-number. Data gelombang air laut untuk menggambarkan kondisi gelombang air laut. Hasil pengolahan data menunjukkan siklon tropis Claudia memliki masa hidup selama 16 hari dengan nilai maksimum T-number sebesar 4,5. Dampak siklon tropis Claudia pada kondisi gelombang air laut terjadi pada saat siklon tropis memasuki tahap matang yaitu pada perairan Selatan Jawa Tengah hingga Nusa Tenggara Timur.
Analysis of Changes in Area of Mangrove Density at Ngurah Rai Bali Grand Forest Park Using Image of Landsat 8 Satellite Kadek Darmo; Komang Ngurah Suarbawa; I Gusti Agung Widagda
BULETIN FISIKA Vol 19 No 2 (2018): BULETIN FISIKA
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

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

Abstract

The study is report about to estimate the change of mangrove density level of Ngurah Rai Bali Forest Park from 2014 until 2017 using image of Landsat satellite 8 which was processed with ArcGis software. The density level was determined by using the NDVI method and grouped according to the NDVI range according to the Ministry of Forestry’s rules of 2005. The result shows that in the rare area, the change in the area of density reduced by 23.67 ha, in medium area decreased by 16.74 ha, in the tight area increased by 24.3 ha, and in the total area of mangrove reduced by 16.11 ha. Those results obtained with accuracy of 100 %, 67 %, 93% and 90 % in rare area, medium area, tight area and total area, respectively.
ANALISIS TINGKAT KERAWANAN BAHAYA SAMBARAN PETIR DENGAN METODE SIMPLE ADDITIVE WEIGHTING DI PROVINSI BALI Tomy Gunawan; Komang Ngurah Suarbawa; Lestari Naomi L. Pandiangan
BULETIN FISIKA Vol 15 No 2 (2014): BULETIN FISIKA
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

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

Abstract

Bali is a potential area prone to lightning strikes because it has a tropical climate with thepossibility of rain accompanied by lightning quite high and also vulnerable because of thepopulation density is very high. These conditions threaten the safety of lives and property of thepopulation, so it is necessary to study the vulnerability of lightning strikes in Bali. For identify thelevel of vulnerability to lightning strikes used two factors, the threat factors using CG(Cloud toGround) lightning incidence data (2009-2013) and vulnerability factors using data of populationdensity and land use for homes and buildings. Two factors were analyzed using the method of SAW(Simple Additive Weighting) to obtain level of vulnerability to lightning strikes each district. Theresults of the calculations show Selemadeg Barat, Denpasar, Kuta, Pupuan, Klungkung andSelemadeg have a high level of vulnerability to lightning strikes, 27 districts are in the middlecategory and the remaining 21 districts are in the low category.
Analisis Analisis Sebaran Asap Di Kepulauan Nusa Tenggara Akibat Kebakaran Hutan Dan Lahan Ryan Juliston Pangihutan Simanjuntak; Komang Ngurah Suarbawa; I Ketut Putra
BULETIN FISIKA Vol 24 No 2 (2023): BULETIN FISIKA August Edition
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/BF.2023.V24.i02.p07

Abstract

This study analyzes the distribution of smoke in the Nusa Tenggara Islands due to forest and land fires. This study uses secondary data in September 2020, such as satellite image data and meteorological condition data, because in 2020, the Nusa Tenggara Islands have the largest forest fires, NTT reaches 114,719.00 Ha, and NTB reaches 29,157.00 Ha. In this study, to detect smoke caused by forest and land fires, the Himawari-8 satellite and the Terra Aqua satellite will produce images to detect smoke. The image data will be processed using Satellite Animation and Interactive Diagnosis (SATAID) software for the Himawari-8 satellite and Hypersectral Data Viewer for Development of Research Applications (HYDRA) for the Terra Aqua satellite. The image results from the satellite will detect and show the distribution of smoke with the red, green, blue (RGB) technique, where the RGB technique will provide color contrast to the image object to be detected. Then the image results analyzed, and linked to the meteorological conditions that occurred during forest and land fires in the Nusa Tenggara Islands in September 2020.
Analisis Sebaran Debu Vulkanik Erupsi Gunung Kelud Berdasarkan Pergerakan Angin di Wilayah Jawa (Studi Kasus Erupsi Gunung Kelud 13 Februari 2014) Romadhon Ilham Imani; I Ketut Sukarasa; Kadek Sumaja; Komang Ngurah Suarbawa; Ida Bagus Alit Paramartha; Ngurah Sutapa
BULETIN FISIKA Vol 24 No 2 (2023): BULETIN FISIKA August Edition
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

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

Abstract

The distribution of volcanic ash from the eruption of Mount Kelud on 13 February 2014 had a significant impact on atmospheric conditions in the Java Island region. This research was conducted to identify the trajectory of volcanic dust, the mass value of the particles, and the range of distribution in the atmosphere which is affected by wind conditions. The influence of the wind is based on wind direction and speed by doing wind streamline modelling. Furthermore, the assistance of volcanic ash distribution was carried out using the Red, Green, Blue (RGB) composite image method, and the particle mass and distribution range of volcanic dust was carried out using hysplit modelling. The atmospheric layer analysed at the flight level area at 16 altitudes, namely at an altitude of 1.5-16.1 km. From the results of the analysis, it was found that the maximum wind speed is 38 m/s, which is at an altitude of 16.1 km. The trajectory of the distribution of volcanic ash heads to the Northeast and then most of it turns to the Southwest due to wind direction and speed. The highest maximum particle mass value is at an altitude of 16.1 km, which is 580,000 mg/m2 with a particle distribution range of 2,600 km from the position of Mount Kelud.
Co-Authors Adityo Mursitantyo Adityo Mursitantyo Adnyana, I Gusti Agung Putra Amalia Dwi Lestari Ardhianto Septiadhi Ardhianto Septiadhi Audrey Vellicia Decky Irmawan Elvin Riyono Febi Niswatul Auliyah Gusti Ngurah Sutapa I G. A. Widagda I Ketut Putra I Ketut Putra I Putu Agum Suriajaya Maha Putra I Putu Dedy Pratama I Wayan Supardi I Wayan Wisnawa Saputra Ida Bagus Alit Paramartha Indira Indira Ivan Bachtiar Pandapotan Jalut, Laura Laudensia Senly k krisna g Kadek Darmo Kadek Sumaja Kadek Sumaja Kadek Sumaja Kholidatul Islamiyah Laura Laudensia Senly Jalut Lestari Naomi L. Pandiangan Made Padmika Mahayani, Ni Wayan Dewi Melki Adi Kurniawan Nandaru Diaz Ni Luh Desi Purnami Ni Nyoman Susi Kesuma Wardani Ni Nyoman Susi Kesuma Wardani Ni Putu Juliyant Ananda Rika Pangastuti Ni Wayan Dewi Mahayani Padmika, Made Ridwan Kusnandar Romadhon Ilham Imani Rudy Darsono Ryan Juliston Pangihutan Simanjuntak Saputra, I Wayan Wisnawa Satriya Wibawa, I Made Sukarasa, I Ketut Tomy Gunawan Wardani, Ni Nyoman Susi Kesuma Wisnu Ari Adi Wisnu Ari Adi