当サイトでは、より良いサービスを提供するため、クッキーを利用しています。クッキーの使用に同意いただける場合は「同意」ボタンをクリックし、クッキーポリシーについては「詳細を見る」をクリックしてください。詳しくは当サイトの サイトポリシー をご確認ください。

詳細を見る...
ログイン サインアップ
言語:

WEKO3

  • トップ
  • ランキング
To

Field does not validate



インデックスリンク

インデックスツリー

  • RootNode

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": "ab6fc2d5-fbc3-44f6-8cd0-c153725b5d52"}, "_deposit": {"id": "4688", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "4688"}, "status": "published"}, "_oai": {"id": "oai:nied-repo.bosai.go.jp:00004688", "sets": []}, "author_link": [], "item_10001_biblio_info_7": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2017-09", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "3", "bibliographicPageEnd": "1900", "bibliographicPageStart": "1888", "bibliographicVolumeNumber": "210", "bibliographic_titles": [{"bibliographic_title": "GEOPHYSICAL JOURNAL INTERNATIONAL", "bibliographic_titleLang": "en"}]}]}, "item_10001_description_5": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "Most tools and theories for analysing tsunami records were originally developed for coastal sites located far from the tsunami source. As a result, we must take care in using these for records observed inside the focal area where seismic waves can exist together with tsunami. This study investigates the validity and limitations of theories used in past studies. We use 2-D elastic equation of motion as a reference, while most tsunami studies employed incompressible fluid theory. We first examine a two-step method commonly used for setting the initial conditions in tsunami simulations. The method employs the two analytical solutions for the sea-bottom and sea-surface deformations. We found excellent agreement between the initial heights calculated by the two-step method and by the simulation including elastic crust and compressible sea water. We further investigated the change in the ocean-bottom pressure during tsunami generation. For high-frequency pressure records, although the pressure change was sometimes assumed to be proportional to sea-bottom velocity, this did not hold in general, but worked for the first motion. For low-frequency records, ocean-bottom pressure change was usually assumed to be proportional to sea-bottom acceleration. This works nicely when the deformation is smooth, but fails when the sea bottom deforms steeply. We found that a new analytical solution could reproduce the relation more precisely. The validity and limitations of the conventional theories need to be taken into account when analysing tsunami records inside the focal area.", "subitem_description_language": "en", "subitem_description_type": "Other"}]}, "item_10001_publisher_8": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "OXFORD UNIV PRESS", "subitem_publisher_language": "en"}]}, "item_10001_relation_14": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "10.1093/gji/ggx275"}}]}, "item_10001_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "1365-246X", "subitem_source_identifier_type": "EISSN"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Tatsuhiko Saito", "creatorNameLang": "en"}]}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_title": "Tsunami generation: validity and limitations of conventional theories", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Tsunami generation: validity and limitations of conventional theories", "subitem_title_language": "en"}]}, "item_type_id": "40001", "owner": "1", "path": ["1670839190650"], "permalink_uri": "https://nied-repo.bosai.go.jp/records/4688", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2023-03-30"}, "publish_date": "2023-03-30", "publish_status": "0", "recid": "4688", "relation": {}, "relation_version_is_last": true, "title": ["Tsunami generation: validity and limitations of conventional theories"], "weko_shared_id": -1}
  1. 防災科研関係論文

Tsunami generation: validity and limitations of conventional theories

https://nied-repo.bosai.go.jp/records/4688
https://nied-repo.bosai.go.jp/records/4688
950ab3a0-900a-43b7-a417-bfaf0d9e4a8a
Item type researchmap(1)
公開日 2023-03-30
タイトル
言語 en
タイトル Tsunami generation: validity and limitations of conventional theories
言語
言語 eng
著者 Tatsuhiko Saito

× Tatsuhiko Saito

en Tatsuhiko Saito

Search repository
抄録
内容記述タイプ Other
内容記述 Most tools and theories for analysing tsunami records were originally developed for coastal sites located far from the tsunami source. As a result, we must take care in using these for records observed inside the focal area where seismic waves can exist together with tsunami. This study investigates the validity and limitations of theories used in past studies. We use 2-D elastic equation of motion as a reference, while most tsunami studies employed incompressible fluid theory. We first examine a two-step method commonly used for setting the initial conditions in tsunami simulations. The method employs the two analytical solutions for the sea-bottom and sea-surface deformations. We found excellent agreement between the initial heights calculated by the two-step method and by the simulation including elastic crust and compressible sea water. We further investigated the change in the ocean-bottom pressure during tsunami generation. For high-frequency pressure records, although the pressure change was sometimes assumed to be proportional to sea-bottom velocity, this did not hold in general, but worked for the first motion. For low-frequency records, ocean-bottom pressure change was usually assumed to be proportional to sea-bottom acceleration. This works nicely when the deformation is smooth, but fails when the sea bottom deforms steeply. We found that a new analytical solution could reproduce the relation more precisely. The validity and limitations of the conventional theories need to be taken into account when analysing tsunami records inside the focal area.
言語 en
書誌情報 en : GEOPHYSICAL JOURNAL INTERNATIONAL

巻 210, 号 3, p. 1888-1900, 発行日 2017-09
出版者
言語 en
出版者 OXFORD UNIV PRESS
ISSN
収録物識別子タイプ EISSN
収録物識別子 1365-246X
DOI
関連識別子 10.1093/gji/ggx275
戻る
0
views
See details
Views

Versions

Ver.1 2023-03-31 02:00:37.811661
Show All versions

エクスポート

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

Confirm


Powered by WEKO3

Change consent settings


Powered by WEKO3

Change consent settings