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Pillar of Physics: Jurnal Berkala Ilmiah Fisika

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Published by Universitas Negeri Padang

ISSN : 23379030 EISSN : 26852608 DOI : http://dx.doi.org/10.24036/10741171074

Core Subject : Science,

Earth & Planetary Sciences Materials Science & Nanotechnology Physics

This journal publishes original articles on the latest issues and trends occurring internationally in: 1 Geophysics, 2 Electronics and Instrumentation, 3 Material Physics, (4) Computational Physics. Other topics are related to physics are most welcome.

Arjuna Subject : Fisika dan Astronomi - Fisika dan Astronomi (Lain-Lain)

Articles 8 Documents

Search results for , issue "Vol 11, No 1 (2018)" : 8 Documents clear

Struktur batuan pascalongsor menggunakan metoda geolistrik tahanan jenis konfigurasi Wenner (The post-landslide rock structure uses the Wenner configuration resistivity geoelectric method ) - Nizamullah; - Akmam; - Syafriani
PILLAR OF PHYSICS Vol 11, No 1 (2018)
Publisher : Department of Physics – Universitas Negeri Padang UNP

Malalak was located in Sumatra active fault segment that Sianok Segment. This condition caused Malalak prone to landslide hazard. Landslides a natural disasters which can lead to loss of either life or property. Based on local conditions, it need to do research the geological rock types making up Malalak. The objective this research was to find resistivity and structure of rock. The research that used was basic research descriptively. Measurements were made using the Geoelectrical resistivity method Wenner configuration. The interpretation of the data was used Software Res2dinv to get resistivity and depth of rocks in 2D model cross section below the earth surface. Result of this research indicated the type of rocks in Malalak were Clay, Porphyrite, Limestone, Andesite, and Granite. Resistivity approach was derived from the five tracks were, Clay haved resistivity 9,93 Ωm – 77,3 Ωm, Porphyrite 77,4 Ωm – 216 Ωm, Limestone 216,1 Ωm – 1050 Ωm, Andesite 1050,1 Ωm – 3533 Ωm and Granite 3533,1 Ωm – 5217 Ωm.

Estimasi bidang gelincir menggunakan metode geolistrik di Kelurahan Balai Gadang Kecamatan Koto Tangah (The estimation of the slip area uses the geoelectric method in the Balai Gadang Village, Koto Tangah District ) Desi Anriani; - Akmam; Harman Amir
PILLAR OF PHYSICS Vol 11, No 1 (2018)
Publisher : Department of Physics – Universitas Negeri Padang UNP

Landslides have the potential to occur in the Kelurahan Balai Gadang of padang. The landslide should be minimized by knowing slip surface. For this reason, the aims of this research was to find the location of the area which the potential for landslide occurs. The research is descriptive using method Geolistrik Resistivity Schlumberger configuration. Data were collected by Automatic Resistivity multielectrode in 4 lines. The interpretion of the data used Smothness-Constarint Least Square inversion with the help of Res2dinv software. Based on the structure of the obtained rocks, it is estimated of slip surface and depth of slip surface. The results showed that the slip surface found at coordinates one, two, and four with resistivity from 59.9-170 Ωm, 78.5-225 Ωm and 91.0-236 Ωm... Keywords: slip surface, Schlumberger, Geolistrik

Identifikasi prekursor tanah longsor berdasarkan perubahan nilai tahanan jenis batuan menggunakan metode geolistrik time-lapse konfigurasi dipole-dipole di Bukik Lantiak Kecamatan Padang Selatan (Identification of landslide precursors based on changes in the value of rock resistivity using the geoelectric time-lapse method of dipole-dipole configuration in Bukik Lantiak, Padang Selatan District ) Rifa Kurnia; - Akmam; - Mahrizal
PILLAR OF PHYSICS Vol 11, No 1 (2018)
Publisher : Department of Physics – Universitas Negeri Padang UNP

Landslides are a serious hazard for mankind causing fatality and material loss. Losses generated from landslide events can be minimized by investigating early symptoms or precursors of a landslide event. The research is conducted in Bukik Lantiak, South Padang sub-district by using Geolistrik method of time-lapse Dipole-dipole configuration as effort of early symptoms detection or precursor that can cause the occurrence of landslide disaster. The results shows that there is a change of rock resistivity value in each measurement path. The percentage change of resistivity are -12.25% of path 1, -8.73% of path 2, 3.07% of path 3, and -37.42% of path 4. The landslide precursor can be known from change of resistivity value, when measurements are made on each path at two different times so that the measured resistivity will be different. This difference is caused by the absorption of rainwater by the surface which then migrates into the inner layer

Cover, Dewan Redaksi, Daftar Isi Pendahuluan Jurnal
PILLAR OF PHYSICS Vol 11, No 1 (2018)
Publisher : Department of Physics – Universitas Negeri Padang UNP

CoverDewan RedaksiDaftar isi

Studi instrumen ceilometer allweather 8339 dan data hasil pengukuran di Stasiun Meteorologi Minangkabau Padang (Study of the allweather 8339 ceilometer instrument and measurement data at the Minangkabau Meteorological Station, Padang ) Serly Samarantika; - Asrizal; Zulhendri Kamus
PILLAR OF PHYSICS Vol 11, No 1 (2018)
Publisher : Department of Physics – Universitas Negeri Padang UNP

The cloud height measurement has important role in aviation field. One of instruments that is used to measure the cloud height is ceilometer. The existence of ceilometer isn’t so common in daily life unlike other weather elements measuring device such as thermometer, barometer and so on. This cause lack of learning source and knowledge over the cloud parameters for students or observers. For this reason, the research about ceilometer instrument is important. The aim of this research is to describe the operation principle of ceilometer and to determine the data results interpretation of the instrument to give support for instrument’s future development. This research can be classified into the descriptive research category. The object of the research is Ceilometer Allweather 8339 in Minangkabau International Airport and its data results during 14 days. The data was analyzed using analysis descriptive technique. This was executed by collecting any kinds of information from field and literatures. Based on the data analysis can be stated two of research results. First, ceilometer works based on Lidar Principle and using NWS ASOS Sky Condition Algorithm as programming algorithm. The transmitter is InGaAs Laser diode and Avalanche Photo Diode is used as receiver. Second, the measurement result data from 1st July 2017 until 14 July 2017 shows variative pattern in height, sky condition and amount of layers every hours. For example the date that consist of the most low clouds is 7th July 2017 and cloud rarely formed on 3rd July 2017

Analisa komparatif percepatan tanah maksimum akibat gempabumi M6.3 di Selat Mentawai berdasarkan rumusan empiris Ground Motion Prediction Equation (GMPE) (Comparative analysis of the maximum ground acceleration due to the M6.3 earthquake in the Mentawai Strait based on the empirical formula of Ground Motion Prediction Equation (GMPE) ) Fitri Anggriani; - Akmam; - Syafriani
PILLAR OF PHYSICS Vol 11, No 1 (2018)
Publisher : Department of Physics – Universitas Negeri Padang UNP

The ground motion intensity caused by an M 6.3 earthquake that struck Mentawai Strait on September 1st, 2017 with epicenter -1.24 N and 99.75 E and depth 58 km were recorded on BMKG’s seismic and intensity network, the intensity was about III - IV intensity scale (MMI) and the acceleration was 2.8 g. The earthquake intensity calculation in Indonesia can also be calculate by using Ground Motion Prediction Equation (GMPE) such as Si and Midorikawa (1999), Mc Guire (1963), Donovan (1973) and Wu et al (2003) empirical equations. We conducted a research to compare the peak ground acceleration calculation between using empirical equation and by using data observed on BMKG’s intensity networks. The PGA result on every district of Sumatera Barat Province that shown on BMKG’s shakemap has a significant different comparing with the calculation using the equations. The PGA values by using the empirial equations were decayed through the hipocenter distance of the earthquake in every district of Sumatera Barat Province. Meanwhile base on the observed one, we found some anomalies of PGA value on some BMKG’s accelerograph station networks i.e. PDSI in Padang and PAPA in Padang Panjang with 14.35 g and 5.07 g respectively. But these anomalies were not impacted to the result of the intensity, because they have some filters that can elimunate these kind of anomalies to conduct an accurate result.

Identifikasi jenis batuan mengunakan metode geolistrik tahanan jenis konfigurasi wenner (Identification of rock types using the geoelectric resistivity method of the Wenner configuration ) Sendi Mutia; - Akmam; Harman Amir
PILLAR OF PHYSICS Vol 11, No 1 (2018)
Publisher : Department of Physics – Universitas Negeri Padang UNP

The government of Padang has done the planning the development region construction . The region construction planning will be done in Kelurahan Balai Gadang. The construction is focused to the society residence. Hence, it is needed the knowledge about the various rocks under the surface for the design construction. The purpose of this research is to know the resistivity and kinds of rock arrangement under the surface. The research is a basic descriptive research. Measurement were made using the Geolistrik resistivity method of the wenner configuration.The wenner configuration has good vertical resolution so it is good to use for knowing rock types. The interpretation of the data was used Software Res2dinv to get resistivity and depth of rocks in 2D model cross section below the earth surface.The result of this research shows the kinds of resistivity in kelurahan balai gadang Kecamatan KotoTangah is line1 1,79 Ωm - 6020 Ωm ,line2 3,03 Ωm – 14.810 Ωm, line3 1,8 Ωm – 6747 Ωm, and line4 8,85 Ωm – 2490 Ωm. There are 5 kinds of arrangementrocks in Kelurahan Balai Gadang suck as Alluvium, Sandstone, Clay, Limestone and Andisite.

Analisis nilai percepatan tanah maksimum di wilayah Sumatera Barat menggunakan persamaan empiris Mc Guire, Si and Midorikawa dan Donovan (The analysis of the value of the maximum ground acceleration in the West Sumatra region uses the empirical equation of Mc Guire, Si and Midorikawa and Donovan) Romadiana Dwi; - Syafriani; Andiyansyah Sabarani
PILLAR OF PHYSICS Vol 11, No 1 (2018)
Publisher : Department of Physics – Universitas Negeri Padang UNP

We counducted peak ground acceleration analysis caused by the earthquakes that occurred on West Sumatera on February 2008 until September 2016. We compared the acceleration calculation between some empirical attenuation equation i.e. McGuirre (1963), Si and Midorikawa (1999) and Donovan (1973) with the observed data using ETNA Accelerograph at BMKG Padang Panjang Geophysical Station. We clustered the magnitude with M 1.5 to 3.0 SR, 3.1 to 5.0 SR, 5.1 to 7.0 SR and M 7.1 to 8.1 SR to gain the result of PGA differences between empirical equation with the observed data. The first cluster with M 1.5 to 3.0 SR found that the value of PGA Si and Midorikawa approach PGA Accelerograph value at a distance of hiposenter <30 km. The second cluster with M 3.1 to 5.0 SR found that the PGA values obtained using empirical formulas approximate the PGA values recorded by the Accelerograph tool. There was a significant change in the PGA Accelerograph value with a distance of ± 20 km hyposenter. Because there is damage to the Accelerograph tool when recording the earthquake. M 5.1 to 7.0 SR cluster explained that the value of PGA obtained from the calculation approach PGA Accelerograph value at a distance of hiposenter> 350 km. The value of PGA Si and Midorikawa in cluster with M 7.1 to 8.1 SR approaches PGA Accelerograph value at hyposenter distance <600 km.

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Syafriani

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+6281267996692

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Kota padang,

Sumatera barat

INDONESIA

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Syafriani

Contact Email syafri@fmipa.unp.ac.id

Phone +6281267996692

Journal Mail Official fisikasains@fmipa.unp.ac.id

Editorial Address Department of Physics Universitas Negeri Padang UNP Prof. Dr. Hamka Street, Air Tawar, Padang 25131

Location Kota padang, Sumatera barat INDONESIA

Abstract

Abstract

Abstract

Abstract

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Abstract

Abstract

Abstract

Contact Name
Syafriani

Contact Email
syafri@fmipa.unp.ac.id

Phone
+6281267996692

Journal Mail Official
fisikasains@fmipa.unp.ac.id

Editorial Address
Department of Physics Universitas Negeri Padang UNP Prof. Dr. Hamka Street, Air Tawar, Padang 25131

Location
Kota padang,

Sumatera barat

INDONESIA