ログイン
言語:

WEKO3

  • トップ
  • コミュニティ
  • ランキング
AND
To
lat lon distance
To

Field does not validate



インデックスリンク

インデックスツリー

メールアドレスを入力してください。

WEKO

One fine body…

WEKO

One fine body…

アイテム

{"_buckets": {"deposit": "c8c1d209-9870-4985-92b1-5976dcc537a5"}, "_deposit": {"id": "24369", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "24369"}, "status": "published"}, "_oai": {"id": "oai:nagoya.repo.nii.ac.jp:00024369"}, "item_10_biblio_info_6": {"attribute_name": "\u66f8\u8a8c\u60c5\u5831", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2017-02", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "2", "bibliographicPageEnd": "1024", "bibliographicPageStart": "1007", "bibliographicVolumeNumber": "122", "bibliographic_titles": [{"bibliographic_title": "Journal of Geophysical Research - solid earth"}]}]}, "item_10_description_4": {"attribute_name": "\u6284\u9332", "attribute_value_mlt": [{"subitem_description": "Although phreatic eruptions are common volcanic phenomena that sometimes result in significant disasters, their dynamics are poorly understood. In this study, we address the dynamics of the phreatic eruption of Mount Ontake, Japan, in 2014 based on analyses of a tilt change observed immediately (450 s) before the eruption onset. We conducted two sets of analysis: a waveform inversion and a modified phase-space analysis. Our waveform inversion of the tilt signal points to a vertical tensile crack at a depth of 1100 m. Our modified phase-space analysis suggests that the tilt change was at first a linear function in time that then switched to exponential growth. We constructed simple analytical models to explain these temporal functions. The linear function was explained by the boiling of underground water controlled by a constant heat supply from a greater depth. The exponential function was explained by the decompression-induced boiling of water and the upward Darcy flow of the water vapor through a permeable region of small cracks that were newly created in response to ongoing boiling. We interpret that this region was intact prior to the start of the tilt change, and thus, it has acted as a permeability barrier for the upward migration of fluids; it was a breakage of this barrier that led to the eruption.", "subitem_description_type": "Abstract"}]}, "item_10_identifier_60": {"attribute_name": "URI", "attribute_value_mlt": [{"subitem_identifier_type": "DOI", "subitem_identifier_uri": "http://doi.org/10.1002/2016JB013739"}, {"subitem_identifier_type": "HDL", "subitem_identifier_uri": "http://hdl.handle.net/2237/26583"}]}, "item_10_publisher_32": {"attribute_name": "\u51fa\u7248\u8005", "attribute_value_mlt": [{"subitem_publisher": "Wiley"}]}, "item_10_rights_12": {"attribute_name": "\u6a29\u5229", "attribute_value_mlt": [{"subitem_rights": "\u00a9 2017 American Geophysical Union"}]}, "item_10_select_15": {"attribute_name": "\u8457\u8005\u7248\u30d5\u30e9\u30b0", "attribute_value_mlt": [{"subitem_select_item": "publisher"}]}, "item_10_source_id_7": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "2169-9356", "subitem_source_identifier_type": "ISSN"}]}, "item_creator": {"attribute_name": "\u8457\u8005", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Maeda, Yuta"}], "nameIdentifiers": [{"nameIdentifier": "72184", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Kato, Aitaro"}], "nameIdentifiers": [{"nameIdentifier": "72185", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Yamanaka, Yoshiko"}], "nameIdentifiers": [{"nameIdentifier": "72186", "nameIdentifierScheme": "WEKO"}]}]}, "item_files": {"attribute_name": "\u30d5\u30a1\u30a4\u30eb\u60c5\u5831", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2017-08-01"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "Maeda_et_al-2017-Journal_of_Geophysical_Research__Solid_Earth.pdf", "filesize": [{"value": "1.9 MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 1900000.0, "url": {"label": "Maeda_et_al-2017-Journal_of_Geophysical_Research__Solid_Earth.pdf \u30d5\u30a1\u30a4\u30eb\u516c\u958b\uff1a2017/08/01", "url": "https://nagoya.repo.nii.ac.jp/record/24369/files/Maeda_et_al-2017-Journal_of_Geophysical_Research__Solid_Earth.pdf"}, "version_id": "01fc979d-fa65-41ec-b8a0-891f86fcf80b"}]}, "item_language": {"attribute_name": "\u8a00\u8a9e", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_resource_type": {"attribute_name": "\u8cc7\u6e90\u30bf\u30a4\u30d7", "attribute_value_mlt": [{"resourcetype": "journal article", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "Modeling the dynamics of a phreatic eruption based on a tilt observation: Barrier breakage leading to the 2014 eruption of Mount Ontake, Japan", "item_titles": {"attribute_name": "\u30bf\u30a4\u30c8\u30eb", "attribute_value_mlt": [{"subitem_title": "Modeling the dynamics of a phreatic eruption based on a tilt observation: Barrier breakage leading to the 2014 eruption of Mount Ontake, Japan"}]}, "item_type_id": "10", "owner": "1", "path": ["488/489/490"], "permalink_uri": "http://hdl.handle.net/2237/26583", "pubdate": {"attribute_name": "\u516c\u958b\u65e5", "attribute_value": "2017-06-07"}, "publish_date": "2017-06-07", "publish_status": "0", "recid": "24369", "relation": {}, "relation_version_is_last": true, "title": ["Modeling the dynamics of a phreatic eruption based on a tilt observation: Barrier breakage leading to the 2014 eruption of Mount Ontake, Japan"], "weko_shared_id": null}
  1. D300 大学院環境学研究科
  2. D300a 雑誌掲載論文
  3. 学術雑誌

Modeling the dynamics of a phreatic eruption based on a tilt observation: Barrier breakage leading to the 2014 eruption of Mount Ontake, Japan

http://hdl.handle.net/2237/26583
84d82653-ec7d-47f2-b8f2-c408c4085593
名前 / ファイル ライセンス アクション
Maeda_et_al-2017-Journal_of_Geophysical_Research__Solid_Earth.pdf Maeda_et_al-2017-Journal_of_Geophysical_Research__Solid_Earth.pdf ファイル公開:2017/08/01 (1.9 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2017-06-07
タイトル
タイトル Modeling the dynamics of a phreatic eruption based on a tilt observation: Barrier breakage leading to the 2014 eruption of Mount Ontake, Japan
著者 Maeda, Yuta

× Maeda, Yuta

WEKO 72184

Maeda, Yuta

Search repository
Kato, Aitaro

× Kato, Aitaro

WEKO 72185

Kato, Aitaro

Search repository
Yamanaka, Yoshiko

× Yamanaka, Yoshiko

WEKO 72186

Yamanaka, Yoshiko

Search repository
権利
権利情報 © 2017 American Geophysical Union
抄録
内容記述 Although phreatic eruptions are common volcanic phenomena that sometimes result in significant disasters, their dynamics are poorly understood. In this study, we address the dynamics of the phreatic eruption of Mount Ontake, Japan, in 2014 based on analyses of a tilt change observed immediately (450 s) before the eruption onset. We conducted two sets of analysis: a waveform inversion and a modified phase-space analysis. Our waveform inversion of the tilt signal points to a vertical tensile crack at a depth of 1100 m. Our modified phase-space analysis suggests that the tilt change was at first a linear function in time that then switched to exponential growth. We constructed simple analytical models to explain these temporal functions. The linear function was explained by the boiling of underground water controlled by a constant heat supply from a greater depth. The exponential function was explained by the decompression-induced boiling of water and the upward Darcy flow of the water vapor through a permeable region of small cracks that were newly created in response to ongoing boiling. We interpret that this region was intact prior to the start of the tilt change, and thus, it has acted as a permeability barrier for the upward migration of fluids; it was a breakage of this barrier that led to the eruption.
内容記述タイプ Abstract
出版者
出版者 Wiley
言語
言語 eng
資源タイプ
資源タイプresource http://purl.org/coar/resource_type/c_6501
タイプ journal article
ISSN
収録物識別子タイプ ISSN
収録物識別子 2169-9356
書誌情報 Journal of Geophysical Research - solid earth

巻 122, 号 2, p. 1007-1024, 発行日 2017-02
著者版フラグ
値 publisher
URI
識別子 http://doi.org/10.1002/2016JB013739
識別子タイプ DOI
URI
識別子 http://hdl.handle.net/2237/26583
識別子タイプ HDL
戻る
0
views
See details
Views

Versions

Ver.1 2021-03-01 14:07:48.211182
Show All versions

Share

Mendeley CiteULike Twitter Facebook Print Addthis

Cite as

Export

OAI-PMH
  • OAI-PMH JPCOAR
  • OAI-PMH DublinCore
  • OAI-PMH DDI
Other Formats
  • JSON
  • BIBTEX

Confirm


Powered by CERN Data Centre & Invenio


Powered by CERN Data Centre & Invenio