Numerical modeling of vertical stratification of Lake Shira in summer


Тип публикации: статья из журнала

Год издания: 2010

Идентификатор DOI: 10.1007/s10452-010-9330-z

Ключевые слова: Stratification, Simulation, Salinity, comparative study, dissolved matter, hydrodynamics, meromictic lake, meteorology, numerical model, one-dimensional modeling, particulate matter, seasonality, summer, thermal structure, two-dimensional modeling, vertical mixing, vertical profile, water quality, Khakassia, Lake Shira, Russian Federation

Аннотация: A one-dimensional numerical model and a two-dimensional numerical model of the hydrodynamic and thermal structure of Lake Shira during summer have been developed, with several original physical and numerical features. These models are well suited to simulate the formation and dynamics of vertical stratification and provide a basis Показать полностьюfor an ecological water-quality model of the lake. They allow for the quantification of the vertical mixing processes that govern not only the thermal structure but also the nutrient exchange, and more generally, the exchange of dissolved and particulate matter between different parts of the lake. The outcome of the calculations has been compared with the field data on vertical temperature and salinity distributions in Lake Shira. Lake Shira is meromictic and exhibits very stable annual stratification. The stratification is so stable because of the high salinity of the water. If the water in Lake Shira were fresh and other parameters (depth, volume, and meteorology) were the same, as now, the lake would be mixed in autumn. Using the newly developed models and using common meteorological parameters, we conclude that Lake Shira will remain stratified in autumn as long as the average salinity is higher than 3%.

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Выпуск журнала: Vol. 44, Is. 3

Номера страниц: 561-570

ISSN журнала: 13862588

Место издания: DORDRECHT

Издатель: SPRINGER


  • Belolipetsky P.V. (Institute of Biophysics SB RAS)
  • Belolipetskii V.M. (Institute of Mathematics,Siberian Federal University)
  • Genova S.N. (Institute of Mathematics,Siberian Federal University)
  • Mooij W.M. (Center for Limnology,Netherlands Institute of Ecology)