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Classification

Water temperature

Rating

Representation rivers and lake

1.

Very cold

7˚ - 13˚

Stiffening effect 0

Dayan, Khuwsgul lake and lakes around it, Altai mountain rivers and lakes

2.

Colder

14˚ - 16˚

Appropriate 1

Uureg, Tolbo

3.

Cold

17˚ - 19˚

Appropriate 2

Telmen, Terkhiin tsagaan lake, Oigon, Sangiin dalai, Suman, Chuluut, Ider, Selenge river

4.

Warm

20˚ - 24˚

Appropriate 3

Achit, Buun Tsagaan lake, Ganga lake

5.

Warmer

25˚ - 27˚

Appropriate 4

Ubs, Khar-us, Buir, Khyargas, Orog lake