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Abstract <p>The features of coastal full upwelling in August–September 2004 have been revealed based on the results of processing and joint analysis of high-frequency water temperature measurements at two moorings located in the southwestern part of Lake Baikal and reanalysis of the wind situation and surface currents using successive IR satellite surveys by the maximum cross-correlation method. Quantitative estimates of changes in the thermal structure at coastal and deep stations, the rate of rise and fall of water, and spatial and temporal variability of heat content have been obtained. The duration of minimum temperatures at the underlying horizons of the active layer during the upwelling period is 11–15 days, with a longer and more intense effect being manifested in the coastal zone.</p>

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Spatiotemporal Variability of the Thermal Structure of Upwelling in the Southwestern Part of Lake Baikal

  • 期刊论文

  • 发表日期：

    2025年12月1日

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  • M. A. Naumenko,
  • V. V. Guzivaty,
  • N. M. Budnev,
  • E. S. Troitskaya

摘要

Abstract

The features of coastal full upwelling in August–September 2004 have been revealed based on the results of processing and joint analysis of high-frequency water temperature measurements at two moorings located in the southwestern part of Lake Baikal and reanalysis of the wind situation and surface currents using successive IR satellite surveys by the maximum cross-correlation method. Quantitative estimates of changes in the thermal structure at coastal and deep stations, the rate of rise and fall of water, and spatial and temporal variability of heat content have been obtained. The duration of minimum temperatures at the underlying horizons of the active layer during the upwelling period is 11–15 days, with a longer and more intense effect being manifested in the coastal zone.