Fusion of hydrologic and geophysical tomographic surveys

Tian-Chyi J Yeh, Cheng Haw Lee, Kuo Chin Hsu, Jet Chau Wen

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

In this paper, we argue the need for high-resolution characterization of the subsurface and discuss difficulties of traditional characterization approaches to meet this need. Necessary and sufficient conditions are then presented for well-posedness of groundwater inverse problems associated with identifying spatially distributed parameters. Non-uniqueness and large uncertainty in model calibration are subsequently attributed to difficulties in collecting information to meet these conditions. Using an example, we show that a tomographic survey can make problems of identification of spatially distributed parameters better posed. We subsequently present some recent advances in hydrologic/geophysical characterization of the subsurface using information fusion based on tomographic survey concepts. This paper includes hydraulic and electrical resistivity tomographic surveys as well as fusion of hydraulic and resistivity tomography and fusion of hydraulic and tracer tomography.

Original languageEnglish (US)
Pages (from-to)159-167
Number of pages9
JournalGeosciences Journal
Volume12
Issue number2
DOIs
StatePublished - Jun 30 2008

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geophysical survey
hydraulics
tomography
electrical resistivity
inverse problem
tracer
calibration
groundwater
parameter
need

Keywords

  • Data fusion
  • Hydraulic/geophysical tomographic surveys
  • Inverse modeling
  • Well-posedness

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

Cite this

Fusion of hydrologic and geophysical tomographic surveys. / Yeh, Tian-Chyi J; Lee, Cheng Haw; Hsu, Kuo Chin; Wen, Jet Chau.

In: Geosciences Journal, Vol. 12, No. 2, 30.06.2008, p. 159-167.

Research output: Contribution to journalArticle

Yeh, Tian-Chyi J ; Lee, Cheng Haw ; Hsu, Kuo Chin ; Wen, Jet Chau. / Fusion of hydrologic and geophysical tomographic surveys. In: Geosciences Journal. 2008 ; Vol. 12, No. 2. pp. 159-167.
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