Science – Future of Lithuania / Mokslas – Lietuvos Ateitis, Vol 2, No 5 (2010)

Peculiarities of the Thermal Regime of the Surface Sediments in Lake Tapeliai

Anastasija Moisejenkova
Nikolaj Tarasiuk
Aloyzas Girgždys


The article discusses the process of heat transfer in the water sediment system having an impact on the input of nutrients and mineral substances from sediments to the bottom water layer. Therefore, conductivity sharply increases on the surface of bottom sediments and reaches more than 400 μS∙cm–1. The heat exchange process is analyzed in Lake Tapeliai classified as a “temporally warm” lake (see K. Kilkus). The paper defines heat transfer from bottom sediments to water applying the convection method and describes isotherm deepening of 4 ºC into sediments. The temperature of surface sediments in Lake Tapeliai was 3,3–3,9 ºC in 2007–2009, whereas the isotherm of 4 ºC slid 20–30 cm deeper to bottom sediments.

Article in Lithuanian

Article in: Lithuanian

Article published:

Keyword(s): Sediments; heat transfer; 4 ºC isotherm; thermodynamic processes

DOI: 10.3846/mla.2010.093

Full Text: PDF pdf

Science – Future of Lithuania / Mokslas – Lietuvos Ateitis ISSN 2029-2341, eISSN 2029-2252
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