ダウンロード数: 75
このアイテムのファイル:
ファイル | 記述 | サイズ | フォーマット | |
---|---|---|---|---|
a65b0p08.pdf | 2.49 MB | Adobe PDF | 見る/開く | |
a65b0p08.zip | 付録 | 296.53 kB | ZIP | 見る/開く |
MD5 : 024934d0b04f0d2e10e10452606ae859 |
完全メタデータレコード
DCフィールド | 値 | 言語 |
---|---|---|
dc.contributor.author | 真木, 雅之 | ja |
dc.contributor.author | 井口, 正人 | ja |
dc.contributor.alternative | MAKI, Masayuki | en |
dc.contributor.alternative | IGUCHI, Masato | en |
dc.date.accessioned | 2023-02-21T09:31:37Z | - |
dc.date.available | 2023-02-21T09:31:37Z | - |
dc.date.issued | 2022-12 | - |
dc.identifier.uri | http://hdl.handle.net/2433/279418 | - |
dc.description.abstract | In the present study, we analyzed the particle size distribution (PSD) of falling volcanic ash particles collected for a total of 205 eruptions in 2018-2020 at Sakurajima volcano in Kagoshima Prefecture, Japan. PSD data were measured with the DPRI optical disdrometer network. Assuming the gamma PSD model, we examined the relationships between each of the gamma PSD parameters calculated by the complete moment method. It was shown that there were good correlations between each of the gamma PSD parameters, which might be one of the characteristics of falling volcanic ash particles. We confirmed from the normalized gamma PSD analysis that the normalized intercept parameter and mass-weighted mean diameter are suitable for estimating the ash fall rate. The results of the present study provide essential information for studying microphysical processes in volcanic ash clouds and improving ash transport and sedimentation models. We also derived theoretical power law relationships between pairs of integrated PSD parameters, which can be applied to weather radar monitoring of ash fall distributions. | en |
dc.language.iso | jpn | - |
dc.publisher | 京都大学防災研究所 | ja |
dc.publisher.alternative | Disaster Prevention Research Institute, Kyoto University | en |
dc.subject | 桜島火山噴火 | ja |
dc.subject | 定量的降灰量推定 | ja |
dc.subject | 粒径分布 | ja |
dc.subject | 落下速度 | ja |
dc.subject | レーダ | ja |
dc.subject | パーシベル | ja |
dc.subject | Sakurajima volcanic eruption | en |
dc.subject | quantitative ash fall estimation | en |
dc.subject | particle size distribution | en |
dc.subject | fall speed | en |
dc.subject | radar | en |
dc.subject | Parsivel | en |
dc.subject.ndc | 519.9 | - |
dc.title | 光学式ディスドロメータにより測定された桜島降灰粒子の解析 | ja |
dc.title.alternative | Analysis of Sakurajima Volcanic Ash Particles Measured with Optical Disdrometers | en |
dc.type | departmental bulletin paper | - |
dc.type.niitype | Departmental Bulletin Paper | - |
dc.identifier.ncid | AN00027784 | - |
dc.identifier.jtitle | 京都大学防災研究所年報. B | ja |
dc.identifier.volume | 65 | - |
dc.identifier.issue | B | - |
dc.identifier.spage | 77 | - |
dc.identifier.epage | 96 | - |
dc.textversion | publisher | - |
dc.sortkey | 08 | - |
dc.address | 京都大学防災研究所 | ja |
dc.address | 京都大学防災研究所 | ja |
dc.relation.url | http://www.dpri.kyoto-u.ac.jp/publications/nenpo/ | - |
dcterms.accessRights | open access | - |
dc.identifier.pissn | 0386-412X | - |
dc.identifier.jtitle-alternative | Disaster Prevention Research Institute Annuals. B | en |
出現コレクション: | Vol.65 B |
![](/dspace/image/articlelinker.gif)
このリポジトリに保管されているアイテムはすべて著作権により保護されています。