Vol.9 No.2 2016
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Research paper : Three-dimensional urban geological map (T. NAKAZAWA et al.)−85−Synthesiology - English edition Vol.9 No.2 (2016) AuthorsTsutomu NAKAZAWACompleted the master’s program at the Graduate School of Science, Chiba University in 1993. After working at a limestone mine, joined the Geological Survey of Japan, Agency of Industrial Science and Technology, Ministry of International Trade and Industry in 1996. Group Leader, Geoinformatics Research Group, Research Institute of Geology and Geoinformation, AIST from 2012. Doctor (Science). Specialties are stratigraphy, sedimentology, and paleontology. Research subjects include the wide-ranging strata of Carboniferous to Quaternary age. Participated in the geoinformatics study of the urban areas in the compilation of 1:50,000 geological maps, and engaged in research for the strata of the Kanto Plain. Currently, engages in research as the leader of 3D geological map project. In this paper, was in charge of overall supervision and the writing of geological surveys.Susumu NONOGAKICompleted the doctor’s program at the Graduate School of Science, Osaka City University in 2009. Doctor (Science). After post-doctoral fellowship at AIST, became Researcher, Geoinformatics Research Group, Research Institute of Geology and Geoinformation, AIST from 2012. Specialty is geoinformatics. Main research subject is the development of method for calculating the shape of stratum boundary from the geoinformation obtained in fieldwork. Also engages in the development of methods for constructing and visualizing the 3D model of geological structures. In this paper, was mainly in charge of the creation of 3D model and the writing on data management and display technologies.Yoshinori MIYACHICompleted the master’s program at the Graduate School of Science, Niigata University in 1991. Joined the Geological Survey of Japan, Agency of Industrial Science and Technology, Ministry of International Trade and Industry in 1992. Group Leader, Quaternary Basin Research Group, Research Institute of Geology and Geoinformation, AIST from 2014. Senior Planning Manager, General Planning Office, Planning Headquarters, AIST from 2016. Specialties are stratigraphy and sedimentology. Research subjects are stratigraphy and geological structures of the Cenozoic period, in the Osaka, Niigata and Kanto Plains engaged in the study of “Active faults and geology of the coastal region” and “1:50,000 geological maps (quadrangle series).” Acted as the subleader in the 3D geological map project, and was in charge of the survey and analysis of the alluvium and artificial ground. In this paper, was in charge of the writing on survey of the alluvium and artificial ground and cooperation with local governments (section 5.2).Discussions with Reviewers1 OverallComment (Akira Kageyama, Research Support Advisor, AIST)This paper is a summary of the results of the trial that was conducted for the purpose of supplying geoinformation not only for two-dimensional but also for three-dimensional geological maps, to use in earthquake hazard assessment and urban planning. It discusses the process by which several elemental technologies were integrated, including the data possessed by the local governments. Since the research was started with consideration of ease of use, the social usefulness is high. In terms of technology, the paper can be highly evaluated since it carefully considers the modeling technology for estimating the three dimensional geological conditions that are difficult to study directly. From these points, we conclude that this paper is appropriate for publication in Synthesiology.Comment (Chikao Kurimoto, AIST)This paper proposes 3D geological maps of urban areas where the population is concentrated, and introduces the research results useful for the creation of hazard maps while collaborating with local governments. Such perspective is meaningful for urban areas where disaster prevention and mitigation are grave concerns, and this result is expected to have major impact on society. Also, the attitude of constructing a highly precise yet easy-to-use system through the development of modeling technology matches the social demand. This paper is based on geological surveys, but also goes on to the organization of geoinformation, handling and advancing the digital information, and implementation in society through collaboration with local governments. I think it sufficiently matches the objective of Synthesiology.2 Primary and secondary usesComment (Chikao Kurimoto)The primary use and secondary use mentioned in Chapter 1 “Introduction” are very important. I think the readers will better understand if you have a section on terminology.Answer (Tsutomu Nakazawa)I added a footnote for secondary use (and primary use).3 Composition of the explanations for the scenario and elemental technologiesComment (Akira Kageyama, Chikao Kurimoto)You discuss the scenario for achieving the goal in the beginning of Chapter 3 and Fig. 3, but I think it will be easier to understand if you unify Figs. 2 and 3 (this doesn’t mean you should join the two figures into one). For example, suggestion 1: if the “landform and land use information” and “geoinformation on the surface” shown in Fig. 2 are used in 3D modeling, you should mention them also in Fig. 3. Suggestion 2: you can explain that Fig. 3 is a diagram that shows the details of how to conduct the integration of data and information for the borehole data and outcrop log of Fig. 2.Also, what about explaining that you have worked on the integration of six elemental technologies while considering the usability and reliability in the appropriate part of Chapter 3, and then explain the individual elemental technologies?Answer (Tsutomu Nakazawa)Since the information about the surface layer in Fig. 2, or the landform classification, is one of the important elemental technologies, we added the landform classification in the elemental technologies of Fig. 3, and added a section in the text for its explanation.We also added the point that we are working on the

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