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": "79db0cba-fbbf-4f54-8e76-ceaa22124c8f"}, "_deposit": {"id": "5109", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "5109"}, "status": "published"}, "_oai": {"id": "oai:nied-repo.bosai.go.jp:00005109", "sets": []}, "author_link": [], "item_10001_biblio_info_7": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2018-11"}, "bibliographicIssueNumber": "6", "bibliographicPageEnd": "G135", "bibliographicPageStart": "G119", "bibliographicVolumeNumber": "83", "bibliographic_titles": [{"bibliographic_title": "GEOPHYSICS", "bibliographic_titleLang": "en"}]}]}, "item_10001_description_5": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "We have developed an underwater gravity measurement system that uses an autonomous underwater vehicle (AUV) for exploration of seafloor mineral deposits. An improved air/sea gravimeter mounted on a gimbal mechanism in a pressure capsule 50 cm in diameter was installed in the AUV Urashima. We carried out 11 AUV dives in Sagami Bay as well as in deep-sea mineral deposit areas offshore Japan. The AUV was navigated at a constant speed of 2 knots and at either constant depth or constant altitude above the sea bottom. We obtained high-resolution Bouguer anomaly data through processing of gravity data, water pressure data, and the AUV\u0027s navigational data, including pitch and roll motion. In addition to a vertical acceleration correction using a precise pressure meter with an in situ conversion factor from pressure to depth, three additional corrections were made to the gravimeter data: corrections for the effects of a spatial separation and a time delay between the depth sensor and the gravimeter, and an adjustment to the conversion from pressure increments to depth increments. These new corrections allowed us to obtain high-resolution data in a constant-depth survey of the southern Izena Hole at a depth of approximately 1550 m. The data had a 0.1 mGal rms crossover difference after leveling. This survey revealed two high Bouguer anomaly areas with amplitudes of 1-2 mGal. A model calculation suggested that the anomalies result from the presence of two buried cylindrical high-density mineral deposits. Our data processing method allows the detection of mineral deposits located at or just beneath the seafloor using gravity data collected aboard AUVs. However, further improvements in resolution are desirable, particularly for surveys in areas with rugged topography.", "subitem_description_language": "en", "subitem_description_type": "Other"}]}, "item_10001_publisher_8": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "SOC EXPLORATION GEOPHYSICISTS", "subitem_publisher_language": "en"}]}, "item_10001_relation_14": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "10.1190/GEO2018-0090.1"}}]}, "item_10001_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "1942-2156", "subitem_source_identifier_type": "EISSN"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Takemi Ishihara", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Masanao Shinohara", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Hiromi Fujimoto", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Toshihiko Kanazawa", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Akito Araya", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Tomoaki Yamada", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Kokichi Iizasa", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Satoshi Tsukioka", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Shinobu Omika", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Takeshi Yoshiume", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Masashi Mochizuki", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Kenji Uehira", "creatorNameLang": "en"}]}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_title": "High-resolution gravity measurement aboard an autonomous underwater vehicle", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "High-resolution gravity measurement aboard an autonomous underwater vehicle", "subitem_title_language": "en"}]}, "item_type_id": "40001", "owner": "1", "path": ["1670839190650"], "permalink_uri": "https://nied-repo.bosai.go.jp/records/5109", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2023-03-30"}, "publish_date": "2023-03-30", "publish_status": "0", "recid": "5109", "relation": {}, "relation_version_is_last": true, "title": ["High-resolution gravity measurement aboard an autonomous underwater vehicle"], "weko_shared_id": -1}
  1. 防災科研関係論文

High-resolution gravity measurement aboard an autonomous underwater vehicle

https://nied-repo.bosai.go.jp/records/5109
https://nied-repo.bosai.go.jp/records/5109
bcbbc0e7-c3d7-4600-9053-90ab21ce45fe
Item type researchmap(1)
公開日 2023-03-30
タイトル
言語 en
タイトル High-resolution gravity measurement aboard an autonomous underwater vehicle
言語
言語 eng
著者 Takemi Ishihara

× Takemi Ishihara

en Takemi Ishihara

Search repository
Masanao Shinohara

× Masanao Shinohara

en Masanao Shinohara

Search repository
Hiromi Fujimoto

× Hiromi Fujimoto

en Hiromi Fujimoto

Search repository
Toshihiko Kanazawa

× Toshihiko Kanazawa

en Toshihiko Kanazawa

Search repository
Akito Araya

× Akito Araya

en Akito Araya

Search repository
Tomoaki Yamada

× Tomoaki Yamada

en Tomoaki Yamada

Search repository
Kokichi Iizasa

× Kokichi Iizasa

en Kokichi Iizasa

Search repository
Satoshi Tsukioka

× Satoshi Tsukioka

en Satoshi Tsukioka

Search repository
Shinobu Omika

× Shinobu Omika

en Shinobu Omika

Search repository
Takeshi Yoshiume

× Takeshi Yoshiume

en Takeshi Yoshiume

Search repository
Masashi Mochizuki

× Masashi Mochizuki

en Masashi Mochizuki

Search repository
Kenji Uehira

× Kenji Uehira

en Kenji Uehira

Search repository
抄録
内容記述タイプ Other
内容記述 We have developed an underwater gravity measurement system that uses an autonomous underwater vehicle (AUV) for exploration of seafloor mineral deposits. An improved air/sea gravimeter mounted on a gimbal mechanism in a pressure capsule 50 cm in diameter was installed in the AUV Urashima. We carried out 11 AUV dives in Sagami Bay as well as in deep-sea mineral deposit areas offshore Japan. The AUV was navigated at a constant speed of 2 knots and at either constant depth or constant altitude above the sea bottom. We obtained high-resolution Bouguer anomaly data through processing of gravity data, water pressure data, and the AUV's navigational data, including pitch and roll motion. In addition to a vertical acceleration correction using a precise pressure meter with an in situ conversion factor from pressure to depth, three additional corrections were made to the gravimeter data: corrections for the effects of a spatial separation and a time delay between the depth sensor and the gravimeter, and an adjustment to the conversion from pressure increments to depth increments. These new corrections allowed us to obtain high-resolution data in a constant-depth survey of the southern Izena Hole at a depth of approximately 1550 m. The data had a 0.1 mGal rms crossover difference after leveling. This survey revealed two high Bouguer anomaly areas with amplitudes of 1-2 mGal. A model calculation suggested that the anomalies result from the presence of two buried cylindrical high-density mineral deposits. Our data processing method allows the detection of mineral deposits located at or just beneath the seafloor using gravity data collected aboard AUVs. However, further improvements in resolution are desirable, particularly for surveys in areas with rugged topography.
言語 en
書誌情報 en : GEOPHYSICS

巻 83, 号 6, p. G119-G135
出版者
言語 en
出版者 SOC EXPLORATION GEOPHYSICISTS
ISSN
収録物識別子タイプ EISSN
収録物識別子 1942-2156
DOI
関連識別子 10.1190/GEO2018-0090.1
戻る
0
views
See details
Views

Versions

Ver.1 2023-03-31 02:13:26.813165
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