BUTSURI-TANSA(Geophysical Exploration)
Online ISSN : 1881-4824
Print ISSN : 0912-7984
ISSN-L : 0912-7984
Review Article
Contribution of geophysical surveys to management of social system
Toshifumi Matsuoka
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JOURNAL FREE ACCESS

2013 Volume 66 Issue 4 Pages 221-242

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Abstract

 The Ministry of Land, Infrastructure, and Transport has been adopted “knowledge” and “imagination and applied force” as the bidding evaluation criteria for bidding scoring. Based on these criteria, we will consider the history the exploration geophysics and we try to predict the future technological development. Technical ingenuity and innovation at the core of “imagination and applied force” can be recognized to be stylized, popularization, obsolescence through the field applications. In addition, hints of innovation are obtained through historical study. The science is becoming fragmented individually, however, the technology involved in the Earth system must be necessary considering the whole human life and activities in the Earth. Attaches great importance to this not only “knowledge” expansion, it should strive to create customers of a wide range of fields that require technology innovations.
 Consider as an example the expansion and progress of Geological Survey of Japan, and the creation of civil engineering exploration geophysics by Dr. Toru Watanabe, the history of (elastic wave exploration in particular) exploration geophysical methods in Japan is investigated with the comparison to the world. As a result, the history of ideas and the spread of civil engineering exploration geophysics of technology have been revealed as the oriented practice with purpose, the import of foreign technology, and the technical progresses have achieved Dr. Watanabe. Some differences in deep and shallow exploration targets but, for comparison, studying the history of exploration geophysics in resource development the technology revolution occurs at 30 year each. (1) In the early years of the 1930s, technology development field-oriented (2) In the 1960s, innovation in processing and recording technology by the development of digital equipment. And by improving the quality of that artifact information, “seismic stratigraphy” has been developed for the interpretation and evaluation of the data. (3) In the 1990s, the three-dimensional seismic survey including visualization techniques by improving electronic devices had realized. Also the realization of geological formation properties such as representation by inversion processing was achieved. On the other hand, in civil engineering exploration geophysics, technical development during this period was great, however, it is a loss to the realization of the excess demand items to technical provider and the difficulty of new customer acquisitions. The expected 2020 innovation of the next, in that realization, technological development that reflects (1) directly the purpose of the analysis and evaluation of artifacts, (2) positive attitude to innovation of technology themselves, and (3) the overcoming “travel time” and “body waves” and breaking down the narrow frame of exploration geophysics are required.

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© 2013 The Society of Exploration Geophysicists of Japan
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