A study on Web sharing techniques for reliable three-dimensional geological information

2018 Fiscal Year Final Research Report

• Project/Area Number: 16K21677
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Natural disaster / Disaster prevention science; Geology
• Research Institution: National Institute of Advanced Industrial Science and Technology
• Principal Investigator: NONOGAKI Susumu 国立研究開発法人産業技術総合研究所, 地質調査総合センター, 研究グループ付 (30568613)
• Research Collaborator: NAKAZAWA Tsutomu ; MASUMOTO Shinji ; RAGHAVAN Venkatesh ; YONEZAWA Go ; NEMOTO Tatsuya
• Project Period (FY): 2016-04-01 – 2019-03-31
• Keywords: 地質情報 / 柱状図 / Web / 3次元

Outline of Final Research Achievements

For web sharing of three-dimensional (3D) geological information with high reliability, we have constructed a database for stratigraphic columns and borehole logs using PostgreSQL. We also have developed a high-speed gridding system for geological surfaces, which are essential in surface-based 3D geological modeling, using OpenMP multi-threading technology and have investigated a determination method of optimal gridding parameters by mechanical process. In addition, we have developed a web sharing system of geological information. This web system allows the users (1) to search database for stratigraphic columns and borehole logs, (2) to map locations of stratigraphic columns and borehole logs with a 2D geological map, (3) to browse a surface-based 3D geological model, and (4) to generate a cross-section from 3D geological model.

Free Research Field

情報地質学

Academic Significance and Societal Importance of the Research Achievements

本研究成果は，紙媒体として保管されてきた地質情報の電子化・データベース化を推進するとともに，機械処理による3次元地質モデリングのための技術的基礎を向上するものであり，従来よりも高い信頼性・更新性・客観性をもった地質構造解析の実現に役立つ．また，地質情報の共有媒体のひとつとして3次元地質モデルを利用することにより，地下における地層の3次元分布を誰もが直感的に把握できるWeb環境を整えたものであり，地下地質に関する国民のリテラシー向上に貢献する．