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Paper Abstract and Keywords
Presentation 2007-10-25 16:20
[Invited Talk] Electromagnetic fields and geophysical properties of earth materials
Ki Ha Lee (LBNL) SANE2007-71
Abstract (in Japanese) (See Japanese page) 
(in English) Application of electromagnetic (EM) methods for geophysical investigations depends, in large part, on our understanding of the response of earth materials to EM fields. Useful frequency of EM fields ranges from nine to ten orders of magnitudes, with the scale of target varying from hundreds of kilometers down to a few millimeters. This presentation will be limited to data acquisition and analysis of EM fields for environmental investigations, and intermediate scale reservoir characterizations with some highlights on the role of fluids. The first subject deals with the apparent relationship between geo-hydrological and geophysical properties. It has been well known that fluids in pore space play major roles in controlling the bulk electrical properties of earth materials. Next, a high-frequency (<100 MHz) impedance EM system will be discussed. The system is designed to detect and characterize near-surface resistivity and dielectric properties simultaneously for environmental applications. Finally, a novel next-generation active EM system for detecting and characterizing unexploded ordnance (UXO) will be introduced. All three topics have been part of the research at Berkeley funded by various U.S. government agencies.
Keyword (in Japanese) (See Japanese page) 
(in English) Electromagnetic / property / UXO / impedance / / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 277, SANE2007-71, pp. 53-57, Oct. 2007.
Paper # SANE2007-71 
Date of Issue 2007-10-18 (SANE) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee SANE  
Conference Date 2007-10-25 - 2007-10-26 
Place (in Japanese) (See Japanese page) 
Place (in English) KIST(Seoul) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) The 9th workshop on subsurface electromagnetic measurement 
Paper Information
Registration To SANE 
Conference Code 2007-10-SANE 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Electromagnetic fields and geophysical properties of earth materials 
Sub Title (in English)  
Keyword(1) Electromagnetic  
Keyword(2) property  
Keyword(3) UXO  
Keyword(4) impedance  
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1st Author's Name Ki Ha Lee  
1st Author's Affiliation Lawrence Berkeley National Laboratory (LBNL)
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Speaker Author-1 
Date Time 2007-10-25 16:20:00 
Presentation Time 60 minutes 
Registration for SANE 
Paper # SANE2007-71 
Volume (vol) vol.107 
Number (no) no.277 
Page pp.53-57 
#Pages
Date of Issue 2007-10-18 (SANE) 


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