Wind Effects on Deep Convection in Lake Baikal during the Autumnal Thermal Bar

IF 0.4 4区 物理与天体物理 Q4 PHYSICS, MULTIDISCIPLINARY Moscow University Physics Bulletin Pub Date : 2024-07-04 DOI:10.3103/S0027134924700280
B. O. Tsydenov, N. S. Trunov, V. V. Churuksaeva, D. V. Degi
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Abstract

The results of numerical modelling of deep convection processes in Lake Baikal during the autumnal thermal bar are presented. Using the Boldakov River—the Maloye More Strait cross-section, characterized by great depths, as an example, an analysis of the space–time temperature distributions under various wind conditions was conducted. Simulations have shown the effectiveness of wind only in the upper 250-meter layer. However, the cabbeling instability generated by the thermal bar can lead to convective mixing down to depths of \({\sim}600\) m.

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风对贝加尔湖秋季热压带深层对流的影响
摘要 介绍了贝加尔湖秋季热压带深层对流过程的数值模拟结果。以深度较大的博尔达科夫河-马洛耶莫尔海峡断面为例,对各种风力条件下的时空温度分布进行了分析。模拟结果表明,风仅在 250 米的上层有效。然而,热压条产生的凸起不稳定性会导致深度达 \({\sim}600\) m 的对流混合。
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来源期刊
Moscow University Physics Bulletin
Moscow University Physics Bulletin PHYSICS, MULTIDISCIPLINARY-
CiteScore
0.70
自引率
0.00%
发文量
129
审稿时长
6-12 weeks
期刊介绍: Moscow University Physics Bulletin publishes original papers (reviews, articles, and brief communications) in the following fields of experimental and theoretical physics: theoretical and mathematical physics; physics of nuclei and elementary particles; radiophysics, electronics, acoustics; optics and spectroscopy; laser physics; condensed matter physics; chemical physics, physical kinetics, and plasma physics; biophysics and medical physics; astronomy, astrophysics, and cosmology; physics of the Earth’s, atmosphere, and hydrosphere.
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