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  • 一柳 錦平, 荻田 泰永, 田上 雅浩
    日本水文科学会誌
    2013年 43 巻 2 号 47
    発行日: 2013/05/31
    公開日: 2013/10/10
    ジャーナル フリー
    カナダ北極海の海氷上において,雪の同位体比の観測を行った。2011年3月から5月まで海氷上を徒歩で移動する間に,23個の積雪と4個の降雪サンプルを採取した。雪のδ18Oは-25‰から-35‰,d-excessは3‰から13‰の範囲にあり,天水線はδD=8.4*δ18O+18.7である。本研究では,雪のδ18Oは地上気温との間には,相関は全く認められない。雪のδ18Oの時間変動は水蒸気フラックスの卓越方向に影響されており,δ18Oが小さい時期には北または東から,δ18Oが大きい時期には南西からの水蒸気フラックスが卓越していた。
  • 北極冒険家が行う100 miles adventureに着目して
    清野 隼
    体育学研究
    2022年 67 巻 557-575
    発行日: 2022年
    公開日: 2022/07/12
    [早期公開] 公開日: 2022/05/26
    ジャーナル フリー
     The purpose of this research was to explore the characteristics required of a leader for adventure journeys. The study comprised 2 parts. In Part 1, a semi-structured interview was conducted with the Arctic adventurer Yasunaga Ogita to clarify the concepts he regarded as essential for an expedition leader. This yielded an understanding of the characteristics of adventure journeys, i.e. repeatedly taking active steps, while accepting uncertainty and freedom. On that basis, it was shown to be vital to identify and manage risks through objective assessment, and to make choices based on active observation. In Part 2, a participant-observation method was used, focusing on Yasunaga Ogita, as well as 8 6th-grade elementary school students and 7 staff members who participated in a 100-mile expedition. As practical knowledge, Part 2 clarified the actions required for achieving an adventure journey based on the expert knowledge of Mr. Ogita revealed in Part 1. This clarified the characteristics of risk management and acceptance of the freedom of children, and demonstrated that “instruction”, “education”, “acceptance”, “response”, and “delegation of decision-making to the team” should be properly applied based on active observation. It was concluded that an effective expedition leader needs to repeatedly engage in selfregulation, manage the contradictory elements of risk and freedom, and adapt to change. To develop such characteristics, it is crucial to build up experience while actively going into the field and engaging in group action.
  • 一柳 錦平, 荻田 泰永, 田上 雅浩
    日本水文科学会誌
    2013年 43 巻 1 号 25-29
    発行日: 2013年
    公開日: 2013/04/16
    ジャーナル フリー
    Stable isotopes in snow on sea ice were observed in the Canadian Arctic Sea. Twenty-three snowpack and four new snow samples were collected along the length of expedition on foot from March to May in 2011. Stable isotopes in snow ranged from -25 to -35‰ in δ18O and from 3 to 13‰ in d-excess, and the local meteoric water line (LMWL) is δD=8.4*δ18O+18.7. There are no relationships between δ18O in snow and surface air temperature in this study. Temporal variation of δ18O in snow is influenced by the direction of moisture flux, low (high) δ18O in snow exists when southwesterly (northerly or easterly) moisture flux dominants.
  • 参加して1年以上経過した青少年とその保護者の声から
    清野 隼
    体育学研究
    2020年 65 巻 893-914
    発行日: 2020年
    公開日: 2020/12/05
    [早期公開] 公開日: 2020/10/09
    ジャーナル フリー
     The purpose of this research was to clarify the educational significance of an Arctic exploration experience based on an actual case, the “100 miles adventure”. A questionnaire survey, primarily using the free response approach, was administered by mail to 40 youths and 35 of their parents/guardians one year or more after participation. The responses obtained were analyzed using the KJ method.
     The results showed that there was some degree of freedom during the adventure, and that “human qualities” were cultivated through human experiences without any goal. In addition, while “steadfast companions” and the “importance of their presence” were identified as one type of educational significance, “disharmony with society at large” and “separation of friends compared to ordinary life” were also highlighted. Furthermore, it was suggested that the experience of children through “companions” also had an effect on the “growth of parents themselves”. Among the reasons for deciding to participate in this adventure journey, enabling participants to assimilate this form of educational experience, the need to have “trust in leaders who would continue to take up the challenge of a great undertaking” was emphasized. Going forward, there will be a need to clarify the image of a leader who would be able to realize this sort of adventure journey with a high degree of freedom.
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