1995年
Double diffusively induced intrusions into a density gradient
Geophysical Monograph Series
- ,
- ,
- 巻
- 94
- 号
- 94
- 開始ページ
- 81
- 終了ページ
- 87
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1029/GM094p0081
- 出版者・発行元
- Blackwell Publishing Ltd
Double diffusive intrusion into a density gradient is investigated experimentally. We focus our attention on the dynamic structure of intrusion, although experimental conditions were essentially same as Turner [1978]. We released a sugar (salt) water body at its neutral buoyancy level into salt (sugar) stratified water. As an initial density anomaly of intruding water becomes large, a released water splits to form multiple intrusions. The total layer thickness(H) of multiple intrusion is proportional to the predicted vertical scale “H” [Ruddick &
Turner, 1979].The averaged velocity of intrusion is proportional to NH (N
buoyancy frequency), but the proportional constant is smaller when split occurs. This result suggests that there is some dissipation associated with the occurrence of split. The “collective instability” mechanism could be responsible for this phenomena “split”, because the layer splitting occurred when the Stern Number is much greater than order 1.
Turner, 1979].The averaged velocity of intrusion is proportional to NH (N
buoyancy frequency), but the proportional constant is smaller when split occurs. This result suggests that there is some dissipation associated with the occurrence of split. The “collective instability” mechanism could be responsible for this phenomena “split”, because the layer splitting occurred when the Stern Number is much greater than order 1.
- リンク情報
- ID情報
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- DOI : 10.1029/GM094p0081
- ISSN : 2328-8779
- ISSN : 0065-8448
- SCOPUS ID : 85040116171