Deep ventilation of Lake Baikal waters due to spring thermal bars
Deep ventilation of Lake Baikal waters due to spring thermal bars
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泉水坝使贝加尔湖水域深度通风
DOI：
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发表时间：
1993
期刊：
影响因子：
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通讯作者：
A. A. Zhdanov
中科院分区：
文献类型：
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作者：
M. N. Shimaraev;N. Granin;A. A. Zhdanov
由于贝加尔湖温泉热沙坝的混合（cabbeling不稳定性）导致密度增加，导致冷地表水（T = 3.2−3.4°C，w = 0.3 cm s−1）下沉到TMD剖面以下。这种密度的增加产生了强制对流，随后冷水沿着水下斜坡沿着移动到最大深度。在一年中的其他季节，由强制对流引起的深层和近底沃茨的冷却被指向底部的涡流热通量所补偿。长期而言，深层沃茨的垂直温度分布保持不变。
Increase of density due to mixing (cabbeling instability) in a spring thermal bar in Lake Baikal results in the sinking of cold surface water (T = 3.2−3.4°C, w = 0.3 cm s−1) below the profile of Tmd. This density increase generates forced convection and subsequent movement of cold water along the underwater slope to maximum depths. Cooling of deep and near-bottom waters caused by forced convection is compensated during other seasons of the year by eddy heat flux directed toward the bottom. On a long-term basis, vertical temperature profiles in deep waters remain constant.