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Reconstruction of shallow subsurface structure from geophysical data is a central problem for many environmental and engineering applications. We observe that for shallow soil distributions, seismic data alone or electrical data alone may provide a good reconstruction of the subsurface. We show that using joint seismic and electrical data will improve the reconstruction of shallow structure. Our results emphasize that the availability of techniques for making laboratory measurements of ultrasonic velocities at low pressures in unconsolidated materials and the ability to measure complex impedance in similar samples are key elements of this approach.
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| Authors: |
Bertete-Aguirre, H;
Berge, P A;
Roberts, J J
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| Publication Date: | 2001 Nov 30 |
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| OSTI Identifier: | 15002006 |
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| Report Number(s): | UCRL-JC-144947 |
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| DOE Contract Number: | W-7405-ENG-48 |
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| Resource Type: | Conference/Event |
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| Resource Relation: | Symposium on the Application of Geophysics to Engineering and Environmental Problems, Denver, CO (US), 03/04/2002--03/07/2002; Other Information: PBD: 30 Nov 2001 |
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| Research Org: | Lawrence Livermore National Lab., CA (US) |
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| Sponsoring Org: | US Department of Energy (US) |
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| Country of Publication: | United States |
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| Language: | English |
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| Format: | Size: PDF-FILE: 11 ; SIZE: 0.3 MBYTES pages |
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| Other Number(s): | TRN: US200408%%26 |
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| Subject: | 54 ENVIRONMENTAL SCIENCES; 58 GEOSCIENCES; AVAILABILITY; GEOPHYSICS; IMPEDANCE; MECHANICAL PROPERTIES; SOILS; SUBSURFACE STRUCTURES; ULTRASONIC WAVES |
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| Update Date: | 2008 Feb 12 |
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