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{"_buckets": {"deposit": "a7e3e66f-ed11-4dd2-bd4f-6708e644487c"}, "_deposit": {"id": "4203", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "4203"}, "status": "published"}, "_oai": {"id": "oai:nied-repo.bosai.go.jp:00004203", "sets": []}, "author_link": [], "item_10001_biblio_info_7": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2014-09"}, "bibliographicIssueNumber": "3", "bibliographicPageEnd": "253", "bibliographicPageStart": "243", "bibliographicVolumeNumber": "35", "bibliographic_titles": [{"bibliographic_title": "MARINE GEOPHYSICAL RESEARCH", "bibliographic_titleLang": "en"}]}]}, "item_10001_description_5": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "We have developed a new system for real-time observation of tsunamis and crustal deformation using a seafloor pressure sensor, an array of seafloor transponders and a Precise Point Positioning (PPP ) system on a buoy. The seafloor pressure sensor and the PPP system detect tsunamis, and the pressure sensor and the transponder array measure crustal deformation. The system is designed to be capable of detecting tsunami and vertical crustal deformation of +/- 8 m with a resolution of less than 5 mm. A noteworthy innovation in our system is its resistance to disturbance by strong ocean currents. Seismogenic zones near Japan lie in areas of strong currents like the Kuroshio, which reaches speeds of approximately 5.5 kt (2.8 m/s) around the Nankai Trough. Our techniques include slack mooring and new acoustic transmission methods using double pulses for sending tsunami data. The slack ratio can be specified for the environment of the deployment location. We can adjust slack ratios, rope lengths, anchor weights and buoy sizes to control the ability of the buoy system to maintain freeboard. The measured pressure data is converted to time difference of a double pulse and this simple method is effective to save battery to transmit data. The time difference of the double pulse has error due to move of the buoy and fluctuation of the seawater environment. We set a wire-end station 1,000 m beneath the buoy to minimize the error. The crustal deformation data is measured by acoustic ranging between the buoy and six transponders on the seafloor. All pressure and crustal deformation data are sent to land station in real-time using iridium communication.", "subitem_description_language": "en", "subitem_description_type": "Other"}]}, "item_10001_publisher_8": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "SPRINGER", "subitem_publisher_language": "en"}]}, "item_10001_relation_14": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "10.1007/s11001-014-9235-7"}}]}, "item_10001_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "1573-0581", "subitem_source_identifier_type": "EISSN"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Narumi Takahashi", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Yasuhisa Ishihara", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Hiroshi Ochi", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Tatsuya Fukuda", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Jun\u0027ichiro Tahara", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Yosaku Maeda", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Motoyuki Kido", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Yusaku Ohta", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Katsuhiko Mutoh", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Gosei Hashimoto", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Satoshi Kogure", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Yoshiyuki Kaneda", "creatorNameLang": "en"}]}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_title": "New buoy observation system for tsunami and crustal deformation", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "New buoy observation system for tsunami and crustal deformation", "subitem_title_language": "en"}]}, "item_type_id": "40001", "owner": "1", "path": ["1670839190650"], "permalink_uri": "https://nied-repo.bosai.go.jp/records/4203", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2023-03-30"}, "publish_date": "2023-03-30", "publish_status": "0", "recid": "4203", "relation": {}, "relation_version_is_last": true, "title": ["New buoy observation system for tsunami and crustal deformation"], "weko_shared_id": -1}
  1. 防災科研関係論文

New buoy observation system for tsunami and crustal deformation

https://nied-repo.bosai.go.jp/records/4203
https://nied-repo.bosai.go.jp/records/4203
736cf5e4-5597-47cb-a651-13c162b63f0f
Item type researchmap(1)
公開日 2023-03-30
タイトル
言語 en
タイトル New buoy observation system for tsunami and crustal deformation
言語
言語 eng
著者 Narumi Takahashi

× Narumi Takahashi

en Narumi Takahashi

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Yasuhisa Ishihara

× Yasuhisa Ishihara

en Yasuhisa Ishihara

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Hiroshi Ochi

× Hiroshi Ochi

en Hiroshi Ochi

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Tatsuya Fukuda

× Tatsuya Fukuda

en Tatsuya Fukuda

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Jun'ichiro Tahara

× Jun'ichiro Tahara

en Jun'ichiro Tahara

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Yosaku Maeda

× Yosaku Maeda

en Yosaku Maeda

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Motoyuki Kido

× Motoyuki Kido

en Motoyuki Kido

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Yusaku Ohta

× Yusaku Ohta

en Yusaku Ohta

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Katsuhiko Mutoh

× Katsuhiko Mutoh

en Katsuhiko Mutoh

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Gosei Hashimoto

× Gosei Hashimoto

en Gosei Hashimoto

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Satoshi Kogure

× Satoshi Kogure

en Satoshi Kogure

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Yoshiyuki Kaneda

× Yoshiyuki Kaneda

en Yoshiyuki Kaneda

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抄録
内容記述タイプ Other
内容記述 We have developed a new system for real-time observation of tsunamis and crustal deformation using a seafloor pressure sensor, an array of seafloor transponders and a Precise Point Positioning (PPP ) system on a buoy. The seafloor pressure sensor and the PPP system detect tsunamis, and the pressure sensor and the transponder array measure crustal deformation. The system is designed to be capable of detecting tsunami and vertical crustal deformation of +/- 8 m with a resolution of less than 5 mm. A noteworthy innovation in our system is its resistance to disturbance by strong ocean currents. Seismogenic zones near Japan lie in areas of strong currents like the Kuroshio, which reaches speeds of approximately 5.5 kt (2.8 m/s) around the Nankai Trough. Our techniques include slack mooring and new acoustic transmission methods using double pulses for sending tsunami data. The slack ratio can be specified for the environment of the deployment location. We can adjust slack ratios, rope lengths, anchor weights and buoy sizes to control the ability of the buoy system to maintain freeboard. The measured pressure data is converted to time difference of a double pulse and this simple method is effective to save battery to transmit data. The time difference of the double pulse has error due to move of the buoy and fluctuation of the seawater environment. We set a wire-end station 1,000 m beneath the buoy to minimize the error. The crustal deformation data is measured by acoustic ranging between the buoy and six transponders on the seafloor. All pressure and crustal deformation data are sent to land station in real-time using iridium communication.
言語 en
書誌情報 en : MARINE GEOPHYSICAL RESEARCH

巻 35, 号 3, p. 243-253
出版者
言語 en
出版者 SPRINGER
ISSN
収録物識別子タイプ EISSN
収録物識別子 1573-0581
DOI
関連識別子 10.1007/s11001-014-9235-7
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