[P-EM15] 太陽地球系結合過程の研究基盤形成

[PEM15-06] 分野横断型太陽地球物理学研究推進のためのIUGONETデータ解析システム

*新堀 淳樹¹、田中 良昌²、阿部 修司⁵、能勢 正仁¹、今城 峻³、上野 悟⁴ (1.名古屋大学宇宙地球環境研究所、2.国立極地研究所、3.京都大学大学院理学研究科附属地磁気世界資料解析センター、4.京都大学大学院理学研究科附属天文台、5.九州大学国際宇宙惑星環境研究センター)

キーワード：超高層大気長期変動の全球地上ネットワーク観測・研究、太陽地球系物理学、メタデータデータベース、解析ソフト、分野横断型研究

The Inter-university Upper atmosphere Global Observation NETwork (IUGONET) project [Hayashi et al., 2013], participating in five institutes (Tohoku University, National Institute of Polar Research, Nagoya University, Kyoto University, and Kyushu University), started in 2009 for users to effectively find and analyze various kinds of solar and earth’s atmospheric observational data for promotion of interdisciplinary studies of solar-terrestrial physics. In this project, we have collected information of wide range of ground-based observation data in the solar-terrestrial physics and built a practical metadata database (IUGONET Type-A) [Tanaka et al., 2023] to share them on the Internet. We have also developed several integrated data analysis tools (IUGONET Data Analysis Software: UDAS and UDAS egg: UDAS Easy Guide to Generate your load routines) as one of the extensions of Space Physics Environment Data Analysis System (SPEDAS) [Angelopoulos et al., 2019] to analyze visualize various kinds of ground-based and satellite observation data. In the IUGONET Type-A, users can easily learn characteristics of observational data from quick look images/plots and how to use several basic UDAS commands to visualize the data. Although the IUGONET metadata have been created in Space Physics Archive Search and Extract (SPASE) metadata schema, we updated them from SPASE 2.2.6 to 2.4.0 in 2022 so that we can describe a Digital Object Identifier (DOI) and a persistent digital identifier (ORCID iD) in the IUGONET metadata. Further, we have also discussed some modifications of the SPASE metadata schema to deal with the SpaticalCoverage item used in the IUGONET extension schema 2.4.0.1 with the SPASE developer team. As a result, this content was added in SPASE 2.5.0, which has been released on 29 September 2022 from the SPASE webpage. Further, the SPASE developer team has a plan to release the SPASE 3.0.0 metadata schema to deal with several types of simulation data in near future. Therefore, we also consider updating the latest version of the SPASE metadata because we intend to include several simulation data into IUGONET, for example, GAIA (Ground-to-topside model of Atmosphere and Ionosphere for Aeronomy) simulation data. On the other hand, we have developed the UDAS s5.0.1 including several new load pressures for the GAIA model data, Iitate Planetary Ratio Telescope (IPRT) high-resolution data, and 400 Hz induction magnetometer data at Syowa Station. In addition, new function for loading user's own NetCDF files was added to the GUI. Further, we continue to develop MATLAB and python software to handle several IUGONET data so as to enhance an international use of the IUGONET data. To promote interdisciplinary studies of solar-terrestrial physics using the IUGONET data analysis system, we have held several online tutorial seminars of how to use the IUGONET products and opened several movies and textbooks of previous workshops on the IUGONET website so that users can learn how to deal with the IUGONET data anytime and anywhere. As a result, such our comprehensive activities led to an agreement of the IUGONET project from many institutes and enhanced an international recognition and collaboration. Further, scientific discussion with the IUGONET users has been promoted in many countries, and many scientific papers [e.g., Sun et al., 2022] and Master/Doctor theses have been continuously published. Moreover, such the IUGONET activities having three objectives: development of integrated infrastructure, education support, and international collaborations have been recognized as a good project to certainly create new scientific results also in administrative meetings. Therefore, it can be concluded that the IUGONET activity plays an important role in promoting the equatorial and polar atmospheric observations, international collaboration and integrated data analysis, which are three main subjects of Master Plan 2020.