A database construction of volcanic eruption parameters combined with a numerical modeling of conduit flow dynamics

• Project/Area Number: 21740322
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Solid earth and planetary physics
• Research Institution: National Research Institute for Earth Science and Disaster Prevention
• Principal Investigator: KOZONO Tomofumi 独立行政法人防災科学技術研究所, 観測・予測研究領域・地震, 火山防災研究ユニット (40506747)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000); Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2009: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
• Keywords: 火山現象 / 噴火タイプ / 火道流 / 多項目観測 / 数値モデル / データベース / 火山噴火 / 噴火タイプの多様性 / 火山防災 / 自然現象観測・予測

Research Abstract

A database construction of volcanic eruption parameters from multiple field observations was combined with a numerical modeling of magma ascent in a volcanic conduit ; we systematically investigated the magma ascent process which reproduces the field observations using the numerical model. As a result, we have clarified the generation mechanism of transitional process from an effusive(lava dome) eruption to an explosive(column-forming) eruption.

Research Products

• [Journal Article] 火山噴火のダイナミクス (2011)
  • Author(s): 小屋口剛博,鈴木雄治郎,小園誠史
  • Journal Title: ながれ Volume: 30巻 Pages: 317-324
  • NAID: 110008722921
• [Journal Article] 火山噴火のダイナミクス (2011)
  • Author(s): 小屋口剛博, 鈴木雄治郎, 小園誠史
  • Journal Title: ながれ Volume: 30 Pages: 317-324
  • NAID: 110008722921
• [Journal Article] Effects of the crater on eruption column dynamics (2010)
  • Author(s): T. Koyaguchi, Y. J. Suzuki and T. Kozono
  • Journal Title: Journal of Geophysical Research Volume: vol.115 Issue: B7
  • DOI: 10.1029/2009jb007146
  • Peer Reviewed
• [Journal Article] A simple formula for calculating porosity of magma in volcanic conduits during dome-forming eruptions (2010)
  • Author(s): T. Kozono, T. Koyaguchi
  • Journal Title: Earth, Planets and Space Volume: 62巻 Pages: 483-488
  • NAID: 10029016714
  • URL: http://www.terrapub.co.jp/journals/EPS/pdf/free/2010/62050483.pdf
  • Peer Reviewed
• [Journal Article] ミューオグラフィーによる巨大物体の密度分布可視化およびその火山噴火における火道内気液二相流解析への応用 (2010)
  • Author(s): 小園誠史,田中宏幸,小屋口剛博
  • Journal Title: 混相流 Volume: 24巻 Pages: 45-56
  • NAID: 10026131063
  • URL: http://ci.nii.ac.jp/naid/10026131063
• [Journal Article] A simple formula for calculating porosity of magma in volcanic conduits during dome-forming eruptions (2010)
  • Author(s): T.Kozono, T.Koyaguchi
  • Journal Title: Earth Planets Space Volume: 62 Pages: 483-488
  • NAID: 10029016714
  • Peer Reviewed
• [Journal Article] Effects of the crater on eruption column dynamics (2010)
  • Author(s): T.Koyaguchi, Y.J.Suzuki T.Kozono
  • Journal Title: Journal of Geophysical Research Volume: 115
  • Peer Reviewed
• [Journal Article] Ascending seismic source during an explosive eruption at Tungurahua volcano, Ecuador (2010)
  • Author(s): H.Kumagai, P.Placios, M.Ruiz, H.Yepes T.Kozono
  • Journal Title: Geophysical Research Letters Volume: 38
  • Peer Reviewed
• [Journal Article] ミューオグラフィーによる巨大物体の密度分布可視化およびその火山噴火における火道内気液二相流解析への応用 (2010)
  • Author(s): 小園誠史, 田中宏幸, 小屋口剛博
  • Journal Title: 混相流 24巻 Pages: 45-56
  • NAID: 10026131063
• [Journal Article] Effects of gas escape and crystallization on the complexity of conduit flow dynamics during lava dome eruptions
  • Author(s): T. Kozono, T. Koyaguchi
  • Journal Title: Journal of Geophysical Research Volume: (掲載決定)
  • Peer Reviewed
• [Journal Article] A simple formula for calculating porosity of magma in volcanic conduits during dome-forming eruptions
  • Author(s): 小園誠史, 小屋口剛博
  • Journal Title: Earth, Planets and Space (in press)
  • NAID: 10029016714
  • Peer Reviewed
• [Journal Article] Effects of the crater on eruption column dymanics
  • Author(s): T.Koyaguchi, Y.J.Suzuki, T.Kozono
  • Journal Title: Journal of Geophysical Research (in press)
  • Peer Reviewed
• [Presentation] 脱ガスと結晶化が溶岩ドームから爆発的噴火への遷移過程に与える影響 (2012)
  • Author(s): 小園誠史,小屋口剛博
  • Organizer: 日本地球惑星科学連合2012年大会
  • Place of Presentation: 幕張メッセ・千葉
  • Year and Date: 2012-05-20
• [Presentation] Effects of gas escape and crystallization on the complexity of conduit flow dynamics during lava dome eruptions (2011)
  • Author(s): T. Kozono, T. Koyaguchi
  • Organizer: International Workshop on High Energy Geophysics
  • Place of Presentation: Happo-en, Tokyo
  • Year and Date: 2011-10-27
• [Presentation] Effects of gas escape and crystallization on the complexity of conduit flow dynamics during lava dome eruptions (2011)
  • Author(s): T.Kozono, T.Koyaguchi
  • Organizer: International Workshop on High Energy Geophysics
  • Place of Presentation: 八芳園・東京
  • Year and Date: 2011-10-27
• [Presentation] 有限要素法による地震・火山噴火連動性評価:2011/3/15静岡県東部地震の富士山への影響 (2011)
  • Author(s): 藤田英輔, 河野裕希, 小園誠史, 上田英樹, 吉岡祥一, 戸田則雄, 菊池愛子, 井田喜明
  • Organizer: 日本火山学会2011年秋季大会
  • Place of Presentation: 大雪クリスタルホール・北海道旭川
  • Year and Date: 2011-10-04
• [Presentation] 霧島山新燃岳における火山噴煙のPIV解析 (2011)
  • Author(s): 小園誠史,瀧本浩史,鵜川元雄,藤田英輔,實渕哲也,小屋口剛博,石峯康浩
  • Organizer: 日本火山学会2010年秋季大会
  • Place of Presentation: 旭川市大雪クリスタルホール
  • Year and Date: 2011-10-02
• [Presentation] 霧島山新燃岳における火山噴煙のPIV解析 (2011)
  • Author(s): 小園誠史, 瀧本浩史, 鵜川元雄, 藤田英輔, 實渕哲也, 小屋口剛博, 石峯康浩
  • Organizer: 日本火山学会2011年秋季大会
  • Place of Presentation: 大雪クリスタルホール・北海道旭川
  • Year and Date: 2011-10-02
• [Presentation] Effects of lateral gas escape on transitions from lava dome eruptions to explosive eruptions (2011)
  • Author(s): T. Kozono, T. Koyaguchi
  • Organizer: IUGG 2011
  • Place of Presentation: Melbourne, Australia
  • Year and Date: 2011-07-06
• [Presentation] Effects of lateral gas escape on transitions from lava dome eruptions to explosive eruptions (2011)
  • Author(s): T.Kozono, T.Koyaguchi
  • Organizer: IUGG General Assembly 2011
  • Place of Presentation: Melbourne, Australia
  • Year and Date: 2011-07-06
• [Presentation] 2011年3月15日静岡県東部で発生した地震(Mjma6.4)による富士山マグマ溜まりへの影響評価 (2011)
  • Author(s): 藤田英輔, 小園誠史, 上田英樹, 小澤拓, 吉岡祥一, 戸田則雄, 菊池愛子, 井田喜明
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 幕張メッセ・千葉
  • Year and Date: 2011-05-27
• [Presentation] 横方向脱ガスが溶岩ドーム噴火から爆発的噴火への遷移過程に与える効果 (2011)
  • Author(s): 小園誠史,小屋口剛博
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 幕張メッセ・千葉
  • Year and Date: 2011-05-24
• [Presentation] 傾斜変動データに基づく2011年新燃岳噴火におけるマグマ噴出率の見積もり (2011)
  • Author(s): 小園誠史,上田英樹,小澤拓,小屋口剛博,藤田英輔,鵜川元雄,棚田俊收
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 幕張メッセ・千葉
  • Year and Date: 2011-05-23
• [Presentation] Effects of gas exsolution and microlite crystallization on the complexity of conduit flow dynamics during lava dome eruptions (2010)
  • Author(s): T. Koyaguchi, T. Kozono
  • Organizer: AGU Fall meeting
  • Place of Presentation: San Francisco, USA
  • Year and Date: 2010-12-16
• [Presentation] Effects of gas exsolution and microlite crystallization on the complexity of conduit flow dynamics (2010)
  • Author(s): T.Koyaguchi, T.Kozono
  • Organizer: AGU 2010 Fall Meeting
  • Place of Presentation: San Francisco, USA
  • Year and Date: 2010-12-16
• [Presentation] Coupled effects of vertical and lateral gas escapes on conduit flow dynamics and chemistry of volcanic gas during lava dome eruptions (2010)
  • Author(s): T. Kozono, T. Koyaguchi
  • Organizer: AGU 2010 Fall Meeting
  • Place of Presentation: San Francisco, USA
  • Year and Date: 2010-12-15
• [Presentation] 溶岩流シミュレーション管理システム(RCM)の運用:桜島溶岩流ケーススタディ (2010)
  • Author(s): 藤田英輔,小園誠史,中村桃絵
  • Organizer: 日本火山学会2010年秋季大会
  • Place of Presentation: 京都大学
  • Year and Date: 2010-10-11
• [Presentation] 火山噴火パラメータのデータベース構築 (2010)
  • Author(s): 小園誠史,藤田英輔,上田英樹
  • Organizer: 日本火山学会2010年秋季大会
  • Place of Presentation: 京都大学
  • Year and Date: 2010-10-09
• [Presentation] Effects of Vertical and Lateral Gas Escapes on Volatile Compositions, Magma Porosity and Pressure in Volcanic Conduits during Dome-forming Eruptions, Cities on Volcanoes (2010)
  • Author(s): T. Kozono, T. Koyaguchi
  • Place of Presentation: Tenerife
  • Year and Date: 2010-05-31
• [Presentation] WOVOdatに準拠した火山統合データベースの構築 (2010)
  • Author(s): 上田英樹,藤田英輔,小園誠史,實渕哲也,小澤拓,鵜川元雄
  • Organizer: 日本地球惑星科学連合2010年大会
  • Place of Presentation: 幕張メッセ・千葉
  • Year and Date: 2010-05-25
• [Presentation] 縦方向・横方向の脱ガス過程が溶岩ドーム噴火における火道内の揮発成分組成・マグマ空隙率・圧力の分布に与える効果 (2010)
  • Author(s): 小園誠史,小屋口剛博
  • Organizer: 日本地球惑星科学連合2010年大会
  • Place of Presentation: 幕張メッセ・千葉
  • Year and Date: 2010-05-24
• [Presentation] Compaction of silicic gas-rich magma during lava dome eruptions (2010)
  • Author(s): T.Koyaguchi, T.Kozono
  • Organizer: EGU General Assembly 2010
  • Place of Presentation: Vienna, Austria
  • Year and Date: 2010-05-02
• [Presentation] Imaging density distribution of a big object by muography and its application to the analysis of gas-liquid two-phase flow in a conduit during volcanic eruption (2010)
  • Author(s): 小園誠史, 田中宏幸, 小屋口剛博
  • Organizer: 3rd International Forum on High Energy Geophysics : Muon and Neutrino Radiography
  • Place of Presentation: 東京・フォレスト本郷
  • Year and Date: 2010-03-09
• [Presentation] Volcanic observation data and simulation database at NIED, Japan (2009)
  • Author(s): E.Fujita, H.Ueda, T.Kozono
  • Organizer: American Geophysical Union Fall Meeting 2009
  • Place of Presentation: アメリカ・サンフランシスコ
  • Year and Date: 2009-12-15
• [Presentation] 縦方向脱ガスが溶岩ドーム噴火における火道中のマグマ空隙率分布に与える効果 (2009)
  • Author(s): 小園誠史,小屋口剛博
  • Organizer: 日本火山学会秋季大会
  • Place of Presentation: 神奈川県生命の星・地球博物館
  • Year and Date: 2009-10-11
• [Presentation] 縦方向脱ガスと横方向脱ガスが溶岩ドーム噴火における火道内のマグマ空隙率分布に与える効果 (2009)
  • Author(s): 小園誠史, 小屋口剛博
  • Organizer: 日本火山学会2009年秋季大会
  • Place of Presentation: 神奈川・生命の星・地球博物館
  • Year and Date: 2009-10-11
• [Presentation] 薩摩硫黄島火山硫黄岳の火道浅部密度構造解析:3.火道流モデルに基づく解析 (2009)
  • Author(s): 小園誠史,小屋口剛博,田中宏幸,平秀昭
  • Organizer: 日本地球惑星科学連合2009年大会
  • Place of Presentation: 幕張メッセ・千葉
  • Year and Date: 2009-05-18
• [Presentation] 薩摩硫黄島火山硫黄岳の火道浅部密度構造解析:3. 火道流モデルに基づく解析 (2009)
  • Author(s): 小園誠史, 小屋口剛博, 田中宏幸, 平秀昭
  • Organizer: 日本地球惑星科学連合2009年大会
  • Place of Presentation: 千葉・幕張メッセ
  • Year and Date: 2009-05-18
• [Presentation] 火道・噴煙統合モデルの構築に向けて(その2)火砕流の発生条件に対する火口形状の影響 (2009)
  • Author(s): 小屋口剛博, 小園誠史, 鈴木雄治郎
  • Organizer: 日本地球惑星科学連合2009年大会
  • Place of Presentation: 千葉・幕張メッセ
  • Year and Date: 2009-05-18
• [Presentation] マグマの流量と粘性が溶岩ドーム噴火における火道中のマグマ空隙率変化に与える効果 (2009)
  • Author(s): 小園誠史,小屋口剛博
  • Organizer: 日本地球惑星科学連合2009年大会
  • Place of Presentation: 幕張メッセ・千葉
  • Year and Date: 2009-05-17
• [Presentation] マグマの流量と粘性が溶岩ドーム噴火における火道中のマグマ空隙率変化に与える効果 (2009)
  • Author(s): 小園誠史, 小屋口剛博
  • Organizer: 日本地球惑星科学連合2009年大会
  • Place of Presentation: 千葉・幕張メッセ
  • Year and Date: 2009-05-17
• [Remarks] 受賞日本火山学会論文賞(第14号),受賞論文:〔雑誌論文〕(3)T. Kozono, T. Koyaguchi, A simple formula for calculating porosity of magma in volcanic conduits during dome-forming eruptions, Earth, Planets and Space, 62巻, 2010, 483-488
  • URL: http://vivaweb2.bosai.go.jp/member/kozono/index.html
• [Remarks]
  • URL: http://jglobal.jst.go.jp/detail.php?JGLOBAL_ID=201001085788081671