氏名 Name |
大八木 英夫 ( オオヤギ ヒデオ , OYAGI Hideo ) |
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所属 Organization |
総合政策学部総合政策学科 |
職名 Academic Title |
教授 |
専攻分野 Area of specialization |
国内研究 |
学会活動 Academic societies |
日本陸水学会 企画委員会委員 2017/01/01-2018/12/31 |
著書・学術論文数 No. of books/academic articles |
総数 total number (36)
著書数 books (6) 学術論文数 articles (30) |
学校名 Univ. |
卒業年月(日) Date of Graduation |
卒業区分 Graduation Classification2 |
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法政大学文学部地理学科 | 2002年03月 | 卒業 |
大学院名 Grad. School |
修了課程 Courses Completed |
修了年月(日) Date of Completion |
修了区分 Completion Classification |
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日本大学大学院総合基礎科学研究科地球情報数理科学専攻 | 博士前期課程 | 2004年03月 | 修了 |
日本大学大学院総合基礎科学研究科地球情報数理科学専攻 | 博士後期課程 | 2007年03月 | 修了 |
学位区分 Degree Classification |
取得学位名 Degree name |
学位論文名 Title of Thesis |
学位授与機関 Organization Conferring the Degree |
取得年月(日) Date of Acquisition |
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博士 | 博士(理学) | 日本大学大学院 | 2007年03月 |
年度 Year |
著書名 Title of the books |
著書形態 Form of Book |
NeoCILIUS 請求番号/資料ID Request No |
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出版機関名 Publishing organization,判型 Book Size,頁数 No. of pp.,発行年月(日) Date | |||
2022 | 地理学事典 | 共著 | |
丸善 , A5 , 842 p. , 2023/01/30 | |||
概要(Abstract) |
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備考(Remarks) 公益社団法人日本地理学会 (編集) |
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2022 | 身近な水の環境科学 第2版 | 未設定 | |
朝倉書店 , 未設定 , 168 , 2022/04/07 | |||
概要(Abstract) 日本陸水学会東海支部会(編) |
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備考(Remarks) |
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2021 | コロナの影響と政策―社会・経済・環境の観点から― | 共著 | |
創成社 , A5 , 240 , 2022/03/30 | |||
概要(Abstract) 石川良文[編著] |
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備考(Remarks) |
年度 Year |
論文題目名 Title of the articles |
共著区分 Collaboration Classification |
NeoCILIUS 請求番号/資料ID Request No |
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掲載誌名 Journal name,出版機関名 Publishing organization,巻/号 Vol./no.,頁数 Page nos.,発行年月(日) Date | |||
2023 | A Thermal Regime and a Water Circulation in a Very Deep Lake: Lake Tazawa, Japan | 共著 | |
Water , Multidisciplinary Digital Publishing Institute , Article numbe 5338-5359 , 2024/03/16 | |||
概要(Abstract) |
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備考(Remarks) |
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2022 | 名古屋市名東区猪高緑地・すり鉢池における水域の歴史的変化と水収支について | 共著 | |
なごやの生物多様性 , なごや生物多様性センター , 10 , pp. 47-60 , 2023/03 | |||
概要(Abstract) |
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備考(Remarks) |
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2022 | Water Cycles and Geothermal Processes in a Volcanic Crater Lake | 共著 | |
Hydrology , MDPI , 10/3 , pp. 54-76 , 2023/02/22 | |||
概要(Abstract) Exploring how the hydrological and thermal conditions of a volcanic lake change in response to volcanic activity is important to identify the signs of a volcanic eruption. A water cycle system and a geothermal process in a crater lake, Okama, in the active Zao Volcano, Japan, were explored by estimating the hydrological and chemical budgets of the lake, and analyzing the time series of lake water temperature, respectively. In 2021, the lake level consistently increased by snowmelt plus rainfall in May–June, and then stayed nearly constant in the rainfall season of July–September. The hydrological budget estimated during the increasing lake level indicated that the net groundwater inflow is at any time positive. This suggests that the groundwater inflow to the lake is controlled by the water percolation into volcanic debris from the melting of snow that remained in the catchment. Solving the simultaneous equation from the hydrological and chemical budgets evaluated the groundwater inflow, Gin, at 0.012–0.040 m3/s, and the groundwater outflow, Gout, at 0.012–0.027 m3/s in May–September 2021. By adding the 2020 values of Gin and Gout evaluated at the relatively high lake level, it was found that Gin and Gout exhibit highly negative and positive correlations (R2 = 0.661 and 0.848; p < 0.01) with the lake level, respectively. In the completely ice-covered season of 15 December 2021–28 February 2022, the lake water temperature increased between the bottom and 15 m above the bottom at the deepest point, which reflects the geothermal heat input at the bottom. The heat storage change during the increasing water temperature was evaluated at a range of −0.4–5.5 W/m2 as the 10-day moving average heat flux. By accumulating the daily heat storage change for the calculated period, the water temperature averaged over the heated layer increased from 1.08 to 1.56 °C. The small temperature increase reflects a stagnant state of volcanic activity in the Zao Volcano. The present study could be useful to investigate how an active volcano responds to water percolation and geothermal heat. |
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備考(Remarks) https://doi.org/10.3390/hydrology10030054 |
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2022 | Effects of a Volcanic-Fluid Cycle System on Water Chemistry of a Deep Caldera Lake: Lake Tazawa, Akita Prefecture, Japan | 共著 | |
water , MDPI , 14/19 , pp. 3186-3205 , 2022/10/10 | |||
概要(Abstract) Lake Tazawa, the deepest lake (423.4 m depth at maximum) in Japan underwent drastically changed water quality in 1940, because volcanic water from two active volcanos was then drawn into the lake for power generation and irrigation. Thereby, the pH of lake water decreased from 6.7 to 4.2, which exterminated a land-locked type of sockeye salmon, Oncorhynchus nerka kawamurae (locally called Kunimasu trout). Additionally, the mean residence time of lake water changed from 195 years to 8.9 years by rapidly increasing the outflow for power generation and irrigation. In this study, long-term chemical fluxes controlling lake water chemistry were obtained, and a groundwater water cycle system between the lake and the volcano was explored by estimating hydrological and chemical budgets of the lake. In the chemical budget estimate, two ionic species, SO42− and Cl−, in volcanic fluids were chosen and each mass conservation equation was yielded. The hydrological budget estimate gave us the net groundwater inflow at −1.36 m3/s on average over three periods in 2020–2021, and then the simultaneous equation coupled with the chemical budget equation allowed us to separate into groundwater inflow and outflow at 6.01 m3/s and 7.37 m3/s, averaged over the three periods, respectively. The evaluated groundwater inflow and outflow were compared with those of the other crater or caldera lakes. The linear relationship between the lake volume and the magnitude of groundwater inflow or outflow suggests that the groundwater cycle scale in such a lake increases with the magnitude of the volcanic eruption to have formed the lake. |
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備考(Remarks) https://doi.org/10.3390/w14193186 |
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2022 | 宮古島吉野海岸の固結砂層と湧水の分析結果 | 共著 | |
季刊地理学 , 東北地理学会 , 74/2 , pp. 68-77 , 2022/06/17 | |||
概要(Abstract) 宮古島南東の吉野海岸では,湧水の流路に沿って板状に固結した複数の砂層がみられる。湧水の水質が砂層の固結に関係している可能性が高いと推量し,因果関係を解明する基礎試料を得るため,湧水,固結砂層およびその下方の非固結砂層を採取して分析した。その結果,砂層の固結は石灰岩を溶解した湧水に含まれるCaCO3の析出による可能性が高いと考察した。 |
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備考(Remarks) https://doi.org/10.5190/tga.74.2_68 |
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2020 | Microdiversity and phylogeographic diversification of bacterioplankton in pelagic freshwater systems revealed through long-read amplicon sequencing | 共著 | |
Microbiome , Springer Nature , 24/9 , 1-15 , 2021/01/22 | |||
概要(Abstract) |
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備考(Remarks) |
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2019 | 山岳湖沼における結氷現象と気候変動との関係 | 共著 | |
陸水物理学会誌 , 陸水物理学会 , 2 , pp. 1-11 , 2020/02/01 | |||
概要(Abstract) |
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備考(Remarks) |
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2019 | 固相抽出ICP-MSによる摩周湖水中の微量鉛の定量及び同位体比測定 | 共著 | |
分析化学 , 日本分析化学会 , 68/11 , 877-883 , 2019/11/05 | |||
概要(Abstract) |
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備考(Remarks) |
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2019 | Geothermal Linkage between a Hydrothermal Pond and a Deep Lake: Kuttara Volcano, Japan | 共著 | |
Hydrology , MDPI , 6/1 , pp. 4-14 , 2019/01/06 | |||
概要(Abstract) Kuttara Volcano, Hokkaido, Japan, consists of temperate Lake Kuttara and the western Noboribetsu geothermal area. In order to explore geothermal relations between Lake Kuttara and the geothermal area, the heat budget of a hydrothermal pond, Okunoyu, was evaluated, and the heat storage change in the lower layer of Lake Kuttara was calculated by monitoring the water temperature at the deepest point. The lake water temperature consistently increased during the thermal stratification in June-November of 2013-2016. The heat flux Q(B) at lake bottom was then calculated at a range of 4.1-10.9 W/m(2), which is probably due to the leakage from a hydrothermal reservoir below the lake bottom. Meanwhile, the heat flux H-G(in) by geothermal groundwater input in Okunoyu was evaluated at 3.5-8.5 kW/m(2), which is rapidly supplied through faults from underlying hydrothermal reservoirs. With a time lag of 5 months to monthly mean Q(B) values in Lake Kuttara, the correlation with monthly mean H-G(in) in Okunoyu was significant (R-2 = 0.586; p < 0.01). Applying Darcy's law to the leakage from the hydrothermal reservoir at 260-310 m below the lake bottom, the time needed for groundwater's passage through the media 260-310 m thick was evaluated at 148-149 days (ca. 5 months). These findings suggest that the hydrothermal reservoir below lake bottom and the underlying hydrothermal reservoirs in the western geothermal area are both connected to a unique geothermal source in the deeper zone as a geothermal flow system of Kuttara Volcano. |
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備考(Remarks) DOI:10.3390/hydrology6010004 |
年度 Year |
受賞学術賞名 Name of award |
受賞対象となった研究/業績/活動等 Activity for which award given |
受賞年月(日) Date |
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授与機関 Award presenter |
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2022 | 2022年度第31回「著作賞」 | コロナの影響と政策-社会・経済・環境の観点から- | 2022年10月08日 |
日本地域学会 | |||
備考(Remarks) この賞は、地域学の発展に著しく寄与し、その意義や貢献が多大である著作物に対して表彰されるものです。 受賞した著書は、新型コロナウイルス感染症の影響を社会、経済、環境の3側面から捉え、経済学、社会学、社会心理学、法学、政治学、環境科学など様々な学問分野の知見を基に分析しています。感染症の流行から2年間に及ぶ分析を早期にとりまとめ、パンデミックとなる感染症の影響と政策を地域の視点を入れつつ総合的に捉えた他に類のない著書として高く評価されました。 |
年度 Year |
題目又はセッション名 Title or Name of Session |
細目 Authorship |
発表年月(日) Date |
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発表学会等名称 Name, etc. of the conference at which the presentation is to be given, 主催者名称 Organizer, 掲載雑誌名等 Publishing Magazine,発行所 Publisher,巻/号 Vol./no.,頁数 Page nos. | |||
2023 | 北海道・然別湖の結氷下における水温と湖水流動の状況について | 単独 | 2023/11/11 |
第44回研究発表会(2023年新潟大会) , 陸水物理学会 | |||
概要(Abstract) |
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備考(Remarks) 新潟大学・駅南キャンパスときめいと |
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2023 | 三重県北勢地域における不圧地下水の水位変動の特性について | 単独 | 2023/09/17 |
日本地理学会 , 2023年秋季学術大会 | |||
概要(Abstract) |
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備考(Remarks) 関西大学 |
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2022 | 大深度湖沼における深層の水温環境と鉛直循環について | 単独 | 2023/02/18 |
第25回研究発表会 , 日本陸水学会東海支部会 | |||
概要(Abstract) |
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備考(Remarks) 伊勢海浜センター |
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2022 | 北海道・然別湖の結氷下における水温特性について | 単独 | 2022/11/05 |
2022年度(第43回)陸水物理学会 釧路大会 , 陸水物理学会 | |||
概要(Abstract) |
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備考(Remarks) 釧路 |
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2022 | 北海道・然別湖における水温・水質の特徴 | 単独 | 2022/09/24 |
2022年度日本地理学会秋季学術大会 , 公益社団法人 日本地理学会 | |||
概要(Abstract) |
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備考(Remarks)
香川大学 |
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2021 | 北海道・然別湖における水温・水質について | 単独 | 2021/11/20 |
2021年度(第42回)陸水物理学会 名古屋大会 , 陸水物理学会 | |||
概要(Abstract) |
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備考(Remarks) 南山大学 |
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2021 | カンボジア・トンレサップ湖における水環境と人間生活 | 単独 | 2021/07/16 |
第38回 東海陸水談話会 , 日本陸水学会東海支部 | |||
概要(Abstract) |
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備考(Remarks) |
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2020 | 田沢湖における水収支と水質改善に関する検討 | 単独 | 2020/11/04 |
2020年秋季学術大会 , 日本地理学会 | |||
概要(Abstract) |
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備考(Remarks) |
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2019 | Changes in water level and water area in Lake Tonle Sap | 単独 | 2020/03/13 |
Japan-Cambodia Research Exchange Conference on Conservation of Nature and Water Environment of World Heritage Sites | |||
概要(Abstract) |
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備考(Remarks) Otsu, Shiga University, Japan. |
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2019 | 田沢湖における水・物質収支に関する検討 | 単独 | 2019/11/09 |
陸水物理学会 第 41 回研究発表会(2019 信濃大町大会) , 陸水物理学会 | |||
概要(Abstract) |
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備考(Remarks) |
年度 Year |
助成名称または科学研究費補助金研究種目名 Name of grant or research classification for scientific research funding |
研究題目 Research Title |
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役割(代表/非代表) Role |
助成団体 Granting body |
助成金額 Grant amount |
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2023 | 科学研究費補助金 | 火山性大深度湖沼における湖面凍結条件と気候変動による水温環境への影響評価 | |
研究 | |||
研究内容(Research Content) |
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備考(Remarks) |
年度 Academic Year |
学術研究著書の件数 No. of Academic Books |
学会誌・国際会議議事録等に掲載された学術論文の件数 No. of Academic Articles in Journals/Int'l Conference Papers |
学内的な紀要等に掲載された学術論文の件数 No. of Academic Articles Pub'd in University Bulletins |
学会受賞等の受賞件数 No. of Academic Awards Received |
国際学会でのゲストスピーカーの件数 No. of Times as Guest Speaker at Int'l Academic Conferences |
国際学会での研究発表の件数 No. of Presentations of Papers at Int'l Academic Conferences |
国内学会でのゲストスピーカーの件数 No. of Times as Guest Speaker at National Academic Conf. |
国内学会での研究発表の件数 No. of Papers Presented at National Academic Conf. |
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2023 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 2 |
2022 | 2 | 4 | 0 | 1 | 0 | 0 | 0 | 3 |
2021 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
2020 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 |
2019 | 0 | 2 | 0 | 0 | 0 | 1 | 0 | 3 |
2018 | 2 | 2 | 1 | 0 | 0 | 0 | 0 | 2 |
2024/05/07 更新
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