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{"_buckets": {"deposit": "afc1ca64-590d-4800-b27a-b9abbbaf13c8"}, "_deposit": {"id": "3413", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "3413"}, "status": "published"}, "_oai": {"id": "oai:nied-repo.bosai.go.jp:00003413", "sets": []}, "author_link": [], "item_10001_biblio_info_7": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2019-12", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "4", "bibliographicPageEnd": "241", "bibliographicPageStart": "219", "bibliographicVolumeNumber": "64", "bibliographic_titles": [{"bibliographic_title": "火山", "bibliographic_titleLang": "ja"}, {"bibliographic_title": "Volcano", "bibliographic_titleLang": "en"}]}]}, "item_10001_description_5": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "The relationship between the time-integrated equivalent radar reflectivity factor (\u003ci\u003eS\u003c/i\u003e\u003csub\u003eZ\u003c/sub\u003e)\u003csub\u003e\u003c/sub\u003e and the accumulated volcanic ash fall amount (\u003ci\u003eS\u003c/i\u003e\u003csub\u003eA\u003c/sub\u003e) \u003ci\u003eS\u003c/i\u003e\u003csub\u003eA\u003c/sub\u003e=0.307×\u003ci\u003eS\u003c/i\u003e\u003csub\u003eZ\u003c/sub\u003e\u003csup\u003e0.504\u003c/sup\u003e (or \u003ci\u003eS\u003c/i\u003e\u003csub\u003eZ\u003c/sub\u003e=9.70×\u003ci\u003eS\u003c/i\u003e\u003csub\u003eA\u003c/sub\u003e\u003csup\u003e2.12\u003c/sup\u003e), where the relationship is applicable to \u003ci\u003eS\u003c/i\u003e\u003csub\u003eA\u003c/sub\u003e\u003c2.0kgm\u003csup\u003e-2\u003c/sup\u003e (or \u003ci\u003eS\u003c/i\u003e\u003csub\u003eZ\u003c/sub\u003e\u003c35mm\u003csup\u003e6\u003c/sup\u003em\u003csup\u003e-3\u003c/sup\u003eh), was derived by analyzing weather radar data for the volcanic eruption of Sakurajima, Japan, on August 18, 2013. To derive the \u003ci\u003eS\u003c/i\u003e\u003csub\u003eZ\u003c/sub\u003e-\u003ci\u003eS\u003c/i\u003e\u003csub\u003eA\u003c/sub\u003e relationship, we constructed the three-dimensional Constant Altitude Plan Position Indicator (CAPPI) data of \u003ci\u003eS\u003c/i\u003e\u003csub\u003eZ\u003c/sub\u003e. A total ash fall amount of 67,100 tons was estimated based on the relationship, and a total ash fall area of 102km\u003csup\u003e2\u003c/sup\u003e was estimated based on the weather radar data. The relationship between the equivalent radar reflectivity factor (\u003ci\u003eZ\u003c/i\u003e) and the ash fall rate (\u003ci\u003eR\u003c/i\u003e\u003csub\u003eA\u003c/sub\u003e), \u003ci\u003eR\u003c/i\u003e\u003csub\u003eA\u003c/sub\u003e=1.41×\u003ci\u003eZ\u003c/i\u003e\u003csup\u003e0.350\u003c/sup\u003e was derived, assuming a trapezoidal model for the temporal change in \u003ci\u003eR\u003c/i\u003e\u003csub\u003eA\u003c/sub\u003e. The effects of the radar data sampling height, the horizontal advection of ash echo, and the shape of the trapezoidal model on the derivation of quantitative ash fall estimation formulae are examined and the results are presented herein. Both the \u003ci\u003eS\u003c/i\u003e\u003csub\u003eZ\u003c/sub\u003e-\u003ci\u003eS\u003c/i\u003e\u003csub\u003eA\u003c/sub\u003e and \u003ci\u003eZ\u003c/i\u003e-\u003ci\u003eR\u003c/i\u003e\u003csub\u003eA\u003c/sub\u003e relationships that were derived in the present study are essential to quantitatively monitoring ash fall using weather radar data. Examples of ash fall monitoring, such as the accumulated ash fall distribution and temporal changes in the ash fall rate at specific points, are offered.", "subitem_description_language": "en", "subitem_description_type": "Other"}]}, "item_10001_publisher_8": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "特定非営利活動法人 日本火山学会", "subitem_publisher_language": "ja"}, {"subitem_publisher": "The Volcanological Society of Japan", "subitem_publisher_language": "en"}]}, "item_10001_relation_14": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "10.18940/kazan.64.4_219"}}]}, "item_10001_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "2189-7182", "subitem_source_identifier_type": "EISSN"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "真木 雅之", "creatorNameLang": "ja"}, {"creatorName": "Maki Masayuki", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "鈴木 郁子", "creatorNameLang": "ja"}, {"creatorName": "Suzuki Ikuko", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "井口 正人", "creatorNameLang": "ja"}, {"creatorName": "Iguchi Masato", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Shakti P.C.", "creatorNameLang": "ja"}, {"creatorName": "P.C. Shakti", "creatorNameLang": "en"}]}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "jpn"}]}, "item_title": "気象レーダによる降灰量推定?2013年8月18日桜島噴火の\u003ci\u003eZ\u003c/i\u003e-\u003ci\u003eR\u003c/i\u003e\u003csub\u003eA\u003c/sub\u003e 関係式?", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "気象レーダによる降灰量推定?2013年8月18日桜島噴火の\u003ci\u003eZ\u003c/i\u003e-\u003ci\u003eR\u003c/i\u003e\u003csub\u003eA\u003c/sub\u003e 関係式?", "subitem_title_language": "ja"}, {"subitem_title": "Quantitative Volcanic Ash Fall Estimation by Weather Radar -Z-RA Relationship for the Sakurajima Eruption of August 18, 2013", "subitem_title_language": "en"}]}, "item_type_id": "40001", "owner": "1", "path": ["1670839190650"], "permalink_uri": "https://nied-repo.bosai.go.jp/records/3413", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2023-03-30"}, "publish_date": "2023-03-30", "publish_status": "0", "recid": "3413", "relation": {}, "relation_version_is_last": true, "title": ["気象レーダによる降灰量推定?2013年8月18日桜島噴火の\u003ci\u003eZ\u003c/i\u003e-\u003ci\u003eR\u003c/i\u003e\u003csub\u003eA\u003c/sub\u003e 関係式?"], "weko_shared_id": -1}
  1. 防災科研関係論文

気象レーダによる降灰量推定?2013年8月18日桜島噴火の<i>Z</i>-<i>R</i><sub>A</sub> 関係式?

https://nied-repo.bosai.go.jp/records/3413
https://nied-repo.bosai.go.jp/records/3413
2fe27624-14ee-400e-a0dd-88c7ba788356
Item type researchmap(1)
公開日 2023-03-30
タイトル
言語 ja
タイトル 気象レーダによる降灰量推定?2013年8月18日桜島噴火の<i>Z</i>-<i>R</i><sub>A</sub> 関係式?
タイトル
言語 en
タイトル Quantitative Volcanic Ash Fall Estimation by Weather Radar -Z-RA Relationship for the Sakurajima Eruption of August 18, 2013
言語
言語 jpn
著者 真木 雅之

× 真木 雅之

ja 真木 雅之

en Maki Masayuki

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鈴木 郁子

× 鈴木 郁子

ja 鈴木 郁子

en Suzuki Ikuko

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井口 正人

× 井口 正人

ja 井口 正人

en Iguchi Masato

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Shakti P.C.

× Shakti P.C.

ja Shakti P.C.

en P.C. Shakti

Search repository
抄録
内容記述タイプ Other
内容記述 The relationship between the time-integrated equivalent radar reflectivity factor (<i>S</i><sub>Z</sub>)<sub></sub> and the accumulated volcanic ash fall amount (<i>S</i><sub>A</sub>) <i>S</i><sub>A</sub>=0.307×<i>S</i><sub>Z</sub><sup>0.504</sup> (or <i>S</i><sub>Z</sub>=9.70×<i>S</i><sub>A</sub><sup>2.12</sup>), where the relationship is applicable to <i>S</i><sub>A</sub><2.0kgm<sup>-2</sup> (or <i>S</i><sub>Z</sub><35mm<sup>6</sup>m<sup>-3</sup>h), was derived by analyzing weather radar data for the volcanic eruption of Sakurajima, Japan, on August 18, 2013. To derive the <i>S</i><sub>Z</sub>-<i>S</i><sub>A</sub> relationship, we constructed the three-dimensional Constant Altitude Plan Position Indicator (CAPPI) data of <i>S</i><sub>Z</sub>. A total ash fall amount of 67,100 tons was estimated based on the relationship, and a total ash fall area of 102km<sup>2</sup> was estimated based on the weather radar data. The relationship between the equivalent radar reflectivity factor (<i>Z</i>) and the ash fall rate (<i>R</i><sub>A</sub>), <i>R</i><sub>A</sub>=1.41×<i>Z</i><sup>0.350</sup> was derived, assuming a trapezoidal model for the temporal change in <i>R</i><sub>A</sub>. The effects of the radar data sampling height, the horizontal advection of ash echo, and the shape of the trapezoidal model on the derivation of quantitative ash fall estimation formulae are examined and the results are presented herein. Both the <i>S</i><sub>Z</sub>-<i>S</i><sub>A</sub> and <i>Z</i>-<i>R</i><sub>A</sub> relationships that were derived in the present study are essential to quantitatively monitoring ash fall using weather radar data. Examples of ash fall monitoring, such as the accumulated ash fall distribution and temporal changes in the ash fall rate at specific points, are offered.
言語 en
書誌情報 ja : 火山
en : Volcano

巻 64, 号 4, p. 219-241, 発行日 2019-12
出版者
言語 ja
出版者 特定非営利活動法人 日本火山学会
出版者
言語 en
出版者 The Volcanological Society of Japan
ISSN
収録物識別子タイプ EISSN
収録物識別子 2189-7182
DOI
関連識別子 10.18940/kazan.64.4_219
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