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Shallow S-wave Velocity Profile Estimation using Surface Velocity and Microtremor HVSR with a Linear Velocity Increase Approach

Journal of Mathematical and Fundamental Sciences · Vol. 54 No. 3 (2023) · hlm. 330–358

DOI
10.5614/j.math.fund.sci.2023.54.3.4
ISSN
2338-5510, 2337-5760
Terbit
2023-07-26
Penerbit
Directorate for Research and Innovation (DRI) ITB
Bahasa
eng

Abstrak

We propose a simple method for 1D S-wave velocity (Vs) profile estimation using a measured surface S-wave velocity (V1) and peak frequency of the observed microtremor horizontal-to-vertical spectral ratio (HVSR). In this method, the S-wave velocity profile is presented as linear velocity increase with depth in sediments over a bedrock layer that has a given constant S-wave velocity. Thus, the profile can be parameterized with the measured surface S-wave velocity and the velocity gradient. The gradient can be estimated based on the agreement of the peak frequencies of the observed microtremor HVSR and the theoretical ellipticity of the fundamental mode of the Rayleigh wave. We examined the applicability of the proposed method using numerical tests as well as application to actual data at five sites in the Bandung Basin, Indonesia, where observed Rayleigh wave phase velocities from microtremor array surveys were available. The applicability was confirmed in numerical tests using sample models of soil profiles in the basin. Actual application indicated the appropriateness of the estimated S-wave velocity profiles due to the similarity of their theoretical Rayleigh wave phase velocities with the observed Rayleigh wave phase velocities. Since the proposed method needs prior confirmation of the linear increase of the S-wave velocity, it is suitable for use in spatial interpolation of shallow S-wave velocity profiles with simple data acquisition.

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15 penulis · 29 tautan kepenulisan bersama · 12 lintas organisasi

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  • Bandung Institute of Technology
  • Hasanuddin University
  • Tokyo Institute of Technology
  • Meteorological, Climatological, And Geophysical Agency
  • Kagoshima University
  • Indonesian Institute of Sciences
  • Organisasi berbeda
  • Organisasi sama
  • Afiliasi tidak diketahui
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Rekan penulisOrganisasiArtikel bersama
Masyhur IrsyamBandung Institute of Technology2
Sri WidiyantoroBandung Institute of Technology2
Mohamad RidwanBandung Institute of Technology2
Muhammad Altin MassinaiHasanuddin University1
Dwi Nurfajriana SamHasanuddin University1
Andri Dian NugrahaBandung Institute of Technology1
Ahmad SyahputraBandung Institute of Technology1
Nanang T. PuspitoBandung Institute of Technology1
Sugeng PribadiMeteorological, Climatological, And Geophysical Agency1
Gunawan IbrahimBandung Institute of Technology1
Reiji KobayashiKagoshima University1
D. H. NatawidjajaIndonesian Institute of Sciences1

Afiliasi berasal dari OpenAlex; metadata OAI-PMH jurnal tidak memuatnya. Penulis tanpa ID OpenAlex dicocokkan berdasarkan nama, sehingga dua orang bisa tergabung atau satu orang bisa terpisah.

Sumber metadata: OAI-PMH (metadata jurnal) https://journals.itb.ac.id/index.php/jmfs/oai, pertama di-harvest 9 Nov 2026, terakhir terlihat 9 Nov 2026.
Metadata asli (oai_dc) 
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	<dc:title xml:lang="en-US">Shallow S-wave Velocity Profile Estimation using Surface Velocity and Microtremor HVSR with a Linear Velocity Increase Approach</dc:title>
	<dc:creator>Pramatadie, Andi Muhamad</dc:creator>
	<dc:creator>Yamanaka, Hiroaki</dc:creator>
	<dc:creator>Afnimar, Afnimar</dc:creator>
	<dc:subject xml:lang="en-US">microtremors</dc:subject>
	<dc:subject xml:lang="en-US">horizontal-to-vertical spectral ratio</dc:subject>
	<dc:subject xml:lang="en-US">Rayleigh wave</dc:subject>
	<dc:subject xml:lang="en-US">velocity-depth function</dc:subject>
	<dc:subject xml:lang="en-US">soil amplification</dc:subject>
	<dc:subject xml:lang="en-US">Geophysics</dc:subject>
	<dc:description xml:lang="en-US">We propose a simple method for 1D S-wave velocity (Vs) profile estimation using a measured surface S-wave velocity (V1) and peak frequency of the observed microtremor horizontal-to-vertical spectral ratio (HVSR). In this method, the S-wave velocity profile is presented as linear velocity increase with depth in sediments over a bedrock layer that has a given constant S-wave velocity. Thus, the profile can be parameterized with the measured surface S-wave velocity and the velocity gradient. The gradient can be estimated based on the agreement of the peak frequencies of the observed microtremor HVSR and the theoretical ellipticity of the fundamental mode of the Rayleigh wave. We examined the applicability of the proposed method using numerical tests as well as application to actual data at five sites in the Bandung Basin, Indonesia, where observed Rayleigh wave phase velocities from microtremor array surveys were available. The applicability was confirmed in numerical tests using sample models of soil profiles in the basin. Actual application indicated the appropriateness of the estimated S-wave velocity profiles due to the similarity of their theoretical Rayleigh wave phase velocities with the observed Rayleigh wave phase velocities. Since the proposed method needs prior confirmation of the linear increase of the S-wave velocity, it is suitable for use in spatial interpolation of shallow S-wave velocity profiles with simple data acquisition.</dc:description>
	<dc:publisher xml:lang="en-US">Directorate for Research and Innovation (DRI) ITB</dc:publisher>
	<dc:date>2023-07-26</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journals.itb.ac.id/index.php/jmfs/article/view/19317</dc:identifier>
	<dc:identifier>10.5614/j.math.fund.sci.2023.54.3.4</dc:identifier>
	<dc:source xml:lang="en-US">Journal of Mathematical and Fundamental Sciences; Vol. 54 No. 3 (2023); 330-358</dc:source>
	<dc:source>2338-5510</dc:source>
	<dc:source>2337-5760</dc:source>
	<dc:source>10.5614/j.math.fund.sci.2023.54.3</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://journals.itb.ac.id/index.php/jmfs/article/view/19317/6241</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2023 Journal of Mathematical and Fundamental Sciences</dc:rights>
</oai_dc:dc>