Presentation 2017-10-04
Application for GPR Survey to Faults in Mogod Earthquake in Central Mongolia
Tsogtbaatar Amarsaikhan, Motoyuki Sato,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) The 1967 Mogod earthquake (M=7.1) occurred in central Mongolia, which was the largest earthquake after the installation of the World Wide Standardized Seismograph Network (WWSSN) in Mongolia. In August 2016, we conducted field survey in Mogod river basin. The main objective of this survey was to demonstrate near range subsurface accurate imaging by GPR and to understand underground properties of layers. The radar system was operated at 100 MHz with unshielded antenna, moved along a section to give high resolution 2D sections different two lines. The distance between two survey lines was about 2 km. The length of Line 1 is 300m and Line 2 is 500m. We conducted five CMP (Common Mid Point) and VES (Vertical Electric Sounding) measurements on Line 1 and two CMP and VES measurements on Line 2. From these survey, we determined location of reflection layers and the velocity of EM waves. The some interesting structure and some reflection layers which were defined by CMP method and reflection profiling method. In cross section Line 1 and Line 2, we could clearly observe the near surface geological structure, horizontal layers and faults. The velocities of reflected waves were estimated by CMP processing. We compared the results obtained by CMP processing and resistivity by VES and could find some relations.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) GPR / CMP / VES / Air couple wave / Lateral wave / Reflected wave
Paper # SANE2017-45
Date of Issue 2017-09-27 (SANE)

Conference Information
Committee SANE
Conference Date 2017/10/4(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Maison franco - japonaise (Tokyo)
Topics (in Japanese) (See Japanese page)
Topics (in English) The 14th workshop on subsurface electromagnetic measurement
Chair Sonosuke Fukushima(ENRI)
Vice Chair Toshifumi Moriyama(Nagasaki Univ.) / Akitsugu Nadai(NICT)
Secretary Toshifumi Moriyama(Mitsubishi Electric) / Akitsugu Nadai(ENRI)
Assistant Manabu Akita(Univ. of Electro-Comm.) / Ryo Natsuaki(Univ. of Tokyo)

Paper Information
Registration To Technical Committee on Space, Aeronautical and Navigational Electronics
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Application for GPR Survey to Faults in Mogod Earthquake in Central Mongolia
Sub Title (in English)
Keyword(1) GPR
Keyword(2) CMP
Keyword(3) VES
Keyword(4) Air couple wave
Keyword(5) Lateral wave
Keyword(6) Reflected wave
1st Author's Name Tsogtbaatar Amarsaikhan
1st Author's Affiliation Tohoku University(Tohoku Univ.)
2nd Author's Name Motoyuki Sato
2nd Author's Affiliation Tohoku University(Tohoku Univ.)
Date 2017-10-04
Paper # SANE2017-45
Volume (vol) vol.117
Number (no) SANE-222
Page pp.pp.11-16(SANE),
#Pages 6
Date of Issue 2017-09-27 (SANE)