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ID 118100
タイトル別表記
A STUDY ON THERMAL ENVIRONMENT IN RIVER REACH WITH A SERIES OF SABO DAMS
著者
鷲見, 哲也 大同大学
水野, 貴視 大同大学
キーワード
Sabo Dam
River water temperature
Siretoko Peninsula
latent heat transport at fall
資料タイプ
学術雑誌論文
抄録
In previous researches (e.g.: Nakano et al, 1996), it is estimated that habitat for cold water fish will be decreasing in Hokkaido area, Japan, if water temperature go up several degrees by global warming. In summer, habitat for Siretoko Peninsula (20 degree is limit temperature) comes severer in daytime by radiation in Siretoko Peninsula, and Sabo dam series is suspected as a factor further heating.
In this study, under an assumption that dam makes wide, shallow, and slow flow area and they make further heating effects by radiation/sensitive heat flux, field investigations on micro meteorology, temporal/spatial water temperature change and flow field are done in two domains with/without dam series in the Kanayama River. Furthermore small experiment also done to know heal flux magnitude of dam fall’s heating effect
Result shows that: (1) radiation’s effect is larger in dam series domain than another. (2) This effects are estimated by flow field with wide water surface and slow velocity made by river bed shape with flat dam. (3) At dam falls, heating effect is negligible or cooling effect is larger by latent heat. By further research, explanation of heating effects by falls taking warm air at pools is expected.
掲載誌名
河川技術論文集
ISSN
24366714
出版者
土木学会
22
開始ページ
475
終了ページ
480
発行日
2016
権利情報
© 2016 土木学会
EDB ID
出版社版DOI
出版社版URL
フルテキストファイル
言語
jpn
著者版フラグ
出版社版
部局
理工学系