The survey-based annual cycle of water temperature and the temperature of the maximum density in Lake Baikal

Authors

  • Sherstyankin, P. P. 1
  • Potyomkin, V. L. 1
  • Kuimova, L. N. 1
  • Shimaraev, M. N. 1
  • 1 Limnological Institute, Siberian Branch of the Russian Academy of Sciences, Irkutsk, 664033, Russia

DOI:

https://doi.org/10.31951/2658-3518-2020-A-4-939

Keywords:

temperature, temperature of the maximum density (TMD), spring and autumn thermal bar, homothermy.

Abstract

Year-round hydrological studies of water temperature throughout the Baikal water column, which were conducted in 1973-1974, describe in a new way the methods for measuring the Baikal water temperature and the temperature of the maximum density (TMD). To highlight the TMD zone, we set some its limits, for example 0,25Ctmd+tmd. Notably, the spring thermal bar heats the water in the lake (the weather is calm): the thermal bar tends to maximum values and the autumn thermal bar, 0,25Ctmd+tmd, cools the water in the lake (the weather is stormy): the thermal bar tends to its minimum values.

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Published

2020-09-07

Issue

Section

Articles