Pemetaan Bawah Permukaan Pada Daerah Tanggulangin, Sidoarjo Dengan Menggunakan Metoda Ground Penetrating Radar (GPR)

Elfarabi, Elfarabi; Widodo, Amien; Syaifudin, Firman

doi:10.12962/j25023659.v3i1.2955

Cited by 4 publications

(6 citation statements)

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“…2. Adjust Signal Position, merupakan proses pengembalian sinyal pada posisi sebenarnya dengan menghilangkan jeda sinyal saat akuisisi data sebelum alat menyentuh permukaan (Elfaraby & Syaifudin, 2017). 3.…”

Section: Metode Gprunclassified

“…5. Median Filter atau filter mean, berfungsi untuk menghilangkan noise dengan frekuensi tinggi dan tidak beraturan (Elfaraby & Syaifudin, 2017). 6.…”

Section: Metode Gprunclassified

“…6. Inverse Amplitude Decay, berfungsi untuk menguatkan amplitudo yang sebelumnya hilang hingga seolah-olah setiap titik memiliki energi yang sama (Elfaraby & Syaifudin, 2017). 7.…”

Section: Metode Gprunclassified

“…7. Removal Global Background, bertujuan menghilangkan noise yang muncul di profil sehingga menutupi sinyal yang awalnya berarah mendatar (Elfaraby & Syaifudin, 2017). 8.…”

Section: Metode Gprunclassified

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Identifikasi Kemenerusan Pipa Air Bawah Permukaan Menggunakan Metode Ground Penetrating Radar (Gpr)

Jannah,

Faqih,

Dita

et al. 2024

jurgeo

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Metode Ground Penetrating Radar (GPR) merupakan metode geofisika non destruktif yang menghasilkan resolusi tinggi terhadap kontras dielektrik bawah permukaan. Dengan menggunakan metode GPR, penelitian ini dilakukan untuk mengidentifikasi kemenerusan pipa air dan kepadatan lapisan pada daerah "AYE". Frekuensi alat yang digunakan dalam pengambilan data adalah 270 MHz dengan jumlah lintasan sebanyak dua lintasan dan panjang tiap lintasan 20 m. Pengolahan dilakukan dengan program MATGPR dalam software Matlab 2015a. Tahap yang dilakukan dalam pengolahan antara lain input data, adjust signal position, remove DC component, dewow filter, median filter, inverse amplitude decay, removal global background, karhunen-loeve filter, bandpass filter, resample scan axis, 1-D velocity model, phaseshifting migration, 1D time to depth conversion, dan picking anomaly. Hasil pengolahan diperoleh penampang radargram dengan kedalaman ±7 meter. Dalam penampang radargram tersebut, diketahui dua anomali hiperbola yang sama diduga sebagai kemenerusan pipa air dengan bahan PVC pada meter 11.1 dan 18.1 dengan kedalaman 0,3 meter pada lintasan 1, dan ditemukan pada meter 10.7 dan 18.3 dengan kedalaman 0.9 meter pada lintasan 2. Anomali yang diduga pipa tersebut memiliki rentang kecepatan 0.0171 m/ns hingga 0.138 m/ns. Lapisan yang padat diindikasikan berada di kedalaman >4 meter yang ditunjukkan oleh reflektor dengan horizon yang kurang tajam, sedangkan lapisan bagian atas yang kurang padat diduga sebagai lapisan timbunan.

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Section: Metode Gprunclassified

“…5. Median Filter atau filter mean, berfungsi untuk menghilangkan noise dengan frekuensi tinggi dan tidak beraturan (Elfaraby & Syaifudin, 2017). 6.…”

Section: Metode Gprunclassified

“…6. Inverse Amplitude Decay, berfungsi untuk menguatkan amplitudo yang sebelumnya hilang hingga seolah-olah setiap titik memiliki energi yang sama (Elfaraby & Syaifudin, 2017). 7.…”

Section: Metode Gprunclassified

“…7. Removal Global Background, bertujuan menghilangkan noise yang muncul di profil sehingga menutupi sinyal yang awalnya berarah mendatar (Elfaraby & Syaifudin, 2017). 8.…”

Section: Metode Gprunclassified

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Identifikasi Kemenerusan Pipa Air Bawah Permukaan Menggunakan Metode Ground Penetrating Radar (Gpr)

Jannah,

Faqih,

Dita

et al. 2024

jurgeo

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“…Ground penetrating radar (GPR) is one of geophysical methods which able to describe the shallow subsurface geology. It has been developed as a tool for shallow subsurface geological survey at high resolution (van Heteren et al, 1998, Moysey et al, 2006 and has been used extensively in geological research, including to identify lithology and subsurface sediment (Budiono and Latuputty, 2008;Budiono, 2013a;2013b;Noviadi, 2014;Jatmiko et al, 2016;Elfarabi et al, 2017), geological structure (Somantri et al, Shofyan et al, 2016;Budiono et al, 2010), and land subsidence (Budiono et al, 2012;Raharjo dan Yosi, 2017).…”

Section: Introductionmentioning

confidence: 99%

Characteristic of Shallow Subsurface Quaternary Sediment in Nongsa Isle, Part of Putri Islands, Batam, Based on Georadar Data Interpretation

Hernawan

Geurhaneu

Zulfikar

2019

BoMG

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Nongsa Isle belongs to Putri Islands in Batam, is the outermost island that need to be protected either from natural hazards and anthropogenic factor. Therefore, this study was conducted by performing Ground Penetrating Radar analysis, in order to understand the geological condition particularly sedimentology and its process. We used Sirveyor 20 GPR equipment type with MLF antenna frequency 40 Mhz and Radan 5 as processing software, which include time zero correction, spatial filter, deconvolution, migration and adjustment of amplitude and signal gain. Data interpretation was conducted based on radar facies methodology that describes georadar image/radargram. The study result showed differences of sedimentary facies based on three differences of radar facies units, with the first layer (unit 1) is the youngest unit has thicknesses ranging from 3.5 – 5 m that characterized by parallel, strong reflector, high amplitude and continuous reflector configurations, unit 2 from 5 – 11 meter of depth, indicates parallel reflector pattern with medium-high amplitude and continuous, and unit 3 which is the oldest unit with thickness until penetration limit (11 – 20 m), characterized by a configuration of sub parallel – hummocky reflectors that are undulating, low-medium amplitude reflectors. Based on radar facies characteristics such as reflector configuration, reflection amplitude, and reflection continuity, the differencies of depositional facies are changes from fluvial – coastal plain.

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Georadar method for detecting underground septic tank

Pramudhita

Yusroni

Wafi

et al. 2021

J. Phys.: Conf. Ser.

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The Ground Penetrating Radar (GPR) method commonly known as Georadar, a nondestructive geophysical method that uses electromagnetic waves. This method is widely used to determine conditions under the surface such as mapping structures and subsurface lithology or buried objects. In this study, the GPR measurement using Geoscanners AKULA A9000 + Antenna GCB3070 is conducted to detect the presence or capacity of a septic tank. The GPR data were initially processed using matGPR based on MATLAB. GPR data on each measuring line is processed first, a series of filters and gaining have been conducted such as Adjust Signal Position, Remove DC, Dewow, Inverse Amplitude Decay, Remove Global Background, Karhunen-Loeve Filter, then time to depth conversion with adjusted parameters. From the result of parameter analysis in processing data, found that the GPR data can be interpreted which show the underground septic tank in the study area with the presence of diffraction signatures.

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Pemetaan Bawah Permukaan Pada Daerah Tanggulangin, Sidoarjo Dengan Menggunakan Metoda Ground Penetrating Radar (GPR)

Cited by 4 publications

References 0 publications

Identifikasi Kemenerusan Pipa Air Bawah Permukaan Menggunakan Metode Ground Penetrating Radar (Gpr)

Identifikasi Kemenerusan Pipa Air Bawah Permukaan Menggunakan Metode Ground Penetrating Radar (Gpr)

Characteristic of Shallow Subsurface Quaternary Sediment in Nongsa Isle, Part of Putri Islands, Batam, Based on Georadar Data Interpretation

Georadar method for detecting underground septic tank

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