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タイトルヨミ
ナカウミ コシンブ ニオケル コテイ ノ スイチュウ エイゾウ ソノ4 : 2004ネン ト 2005ネン ノ ヒカク
日本語以外のタイトル
Bottom floor pictures in Lake Nakaumi (part 4) : Comparative study of bottom condition in 2004 and 2006
ファイル
言語
日本語
属性
自然科学
著者
野村 律夫
内容記述(抄録等)
A long-term monitoring waterproof camera was set up in the bottom of Lake Nakaumi at a depth of 6.5m, over 2.5 weeks of Nov. 9- Nov.26, 2004. There were several times to record a wind speed of over 10m/s. However, no bottom water turbulence occurred in such a wind speed within a one hour wind blowing. Winnowing of bottom sediments occurred in the condition of the wind speeds > 10m/s and >5..6 hours blowing, in November 12 and 26. The bottom water turbulence was not only controlled by the wind speed, but also a period of duration. The quality of water is also influenced by a wind stress. A mixing of upper and middle waters occurred after 6..8 hours on both days. Bottom water, however, was very stable without the mixing of upper water.
The water dynamics and lake floor condition that responded to a wind stress were compared with those of 2006. The response of the water and bottom sediment to wind stress was not always the same; there were different responses of the upper and middle waters and different water clarity. A subtle change of lake environments makes it difficult to reconfirm the influence of wind stress.
掲載誌名
島根大学教育学部紀要
42
開始ページ
81
終了ページ
85
ISSN
18808581
発行日
2008-12-25
NCID
AA12171265
出版者
島根大学教育学部
出版者別表記
Faculty of Education Shimane University
資料タイプ
紀要論文
ファイル形式
PDF
著者版/出版社版
出版社版
部局
教育学部
備考
39-41+ / 2006-2007
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