書誌事項
- タイトル別名
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- Frequency and Environmental Features of Gust in Shonai Plain in Winter
- トウキ ショウナイ ヘイヤ ニ オケル トップウ ノ ハッセイ ヒンド ト カンキョウ トクセイ
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Meteorological observations of gust were carried out in Shonai Plain using X-band Doppler radar, anemometers, surface weather stations from December 2007. Based on the detected gusts accompanied with snowclouds, the meteorological features of gusts were revealed. Approximately 50 % of the detected gusts exceeded the wind speed of 20 m/s. Almost of the gusts were accompanied with convective radar echoes. Pressure jump of 0.3 hPa and temperature drop of 0.5 ℃ in average were recorded at the time of the gusts with convective echoes. Most of the gusts occurred within 10 km from the center of the echoes. These results implied that the drag force of graupel particle was an important factor of the downdraft (snowburst) and surface gusts. The layer of convective unstable up to 700 hPa was necessary for the developing of the convective clouds that brought the surface gusts as the environmental conditions.
収録刊行物
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- 日本風工学会論文集
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日本風工学会論文集 37 (1), 1-10, 2012
一般社団法人 日本風工学会
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詳細情報 詳細情報について
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- CRID
- 1390282680204974464
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- NII論文ID
- 10030438969
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- NII書誌ID
- AN10072785
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- ISSN
- 09121935
- 1349340X
- 13493507
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- DOI
- 10.5359/jwe.37.1
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- NDL書誌ID
- 023530580
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可