Benefits of high-resolution downscaling experiments for assessing strong wind hazard at local scales in complex terrain : a case study of Typhoon Songda (2004)
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- Material Type
- 記事
- Author/Editor
- Tetsuya TakemiRui Ito
- Publication, Distribution, etc.
- Publication Date
- 2020-01-09
- Publication Date (W3CDTF)
- 2020-01-09
- Periodical title
- Progress in earth and planetary science
- No. or year of volume/issue
- 7(4)
- Volume
- 7(4)
- ISSN (Periodical Title)
- 2197-4284
- ISSN-L (Periodical Title)
- 2197-4284
- Text Language Code
- eng
- DOI
- 10.1186/s40645-019-0317-7
- Persistent ID (NDL)
- info:ndljp/pid/11467728
- Collection
- Collection (Materials For Handicapped People:1)
- Collection (particular)
- 国立国会図書館デジタルコレクション > 電子書籍・電子雑誌 > その他
- Acquisition Basis
- オンライン資料収集制度
- Date Accepted (W3CDTF)
- 2020-03-23T18:58:42+09:00
- Date Captured (W3CDTF)
- 2020-03-23
- Format (IMT)
- application/pdf
- Access Restrictions
- 国立国会図書館内限定公開
- Service for the Digitized Contents Transmission Service
- 図書館・個人送信対象外
- Availability of remote photoduplication service
- 可
- Periodical Title (URI)
- Periodical Title (Persistent ID (NDL))
- info:ndljp/pid/11467724
- Data Provider (Database)
- 国立国会図書館 : 国立国会図書館デジタルコレクション
- Summary, etc.
- This study investigated the representation of surface winds in complex terrain during the passage of Typhoon Sondga (2004) in downscaling simulations with the horizontal grid spacing of 200 m. The mountainous areas in Hokkaido where forest damages occurred in the typhoon event were chosen for the present analysis. The 200 m grid simulations were compared with the simulations with the grid spacing of 1 km. The 200 m grid simulations clearly indicated more enhanced and more frequent extremes both in the stronger and weaker ranges of surface winds than the 1 km grid case. Both in the 200 m grid and 1 km grid cases, the mean and maximum winds in the analysis areas during the simulated time period increase with the increase in the terrain slope angle, but in the 200 m grid case, the relationships of the mean and maximum winds against the terrain slope angle includes wide scatter. In this way, the response of the wind representations to the grid spacing appears differently between the 200 m and 1 km grid cases. A parameter characterized subgrid-scale orography was used to quantify the influences of the terrain complexity on surface winds, demonstrating that the area-maxima and spatial variance of surface winds are more enhanced with the increase in the subgrid-scale orography in the higher-resolution case. It is suggested that the high-resolution simulations at the 200 m grid highlight the fluctuating nature of surface winds in complex terrain, because of the better representation of the model terrain at 200 m. Benefits of the representation of surface winds in simulations at the resolution on the order of 100 m are due to the better representation of complex terrain, which enables to quantitatively assess the impacts of strong winds on forest and natural vegetation in complex terrain.
- DOI
- 10.1186/s40645-019-0317-7
- Access Restrictions
- インターネット公開
- Rights (production)
- © The Author(s). This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
- Related Material (URI)
- Is Referenced By
- Large-Eddy-simulation analysis of airflows and strong wind hazards in urban areasGustiness in thermally-stratified urban turbulent boundary-layer flows and the influence of surface roughnessRisk assessment of forest disturbance by typhoons with heavy precipitation in northern JapanHigh–Resolution Modeling of Airflows and Particle Deposition over Complex Terrain at Sakurajima VolcanoRobust responses of typhoon hazards in northern Japan to global warming climate: cases of landfalling typhoons in 2016Typhoon-induced precipitation characterization over northern Japan : a case study for typhoons in 2016
- References
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- References (URI)
- Data Provider (Database)
- 国立情報学研究所 : CiNii Research
- Original Data Provider (Database)
- 学術機関リポジトリデータベース雑誌記事索引データベースCrossrefCiNii Articles科学研究費助成事業データベース科学研究費助成事業データベースCrossrefCrossrefCrossrefCrossrefCrossrefCrossref
- Bibliographic ID (NDL)
- 11467728
- NAID
- 120006779801