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When does the Yenisey River freeze and thaw?
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Yenisey River
The Ob and Yenisey river basins and their drainage networks.
The Yenisey River experiences a seasonal freezing and thawing cycle that varies by location along its course.1
Freezing
Freezing begins on the lower reaches of the river early in October, and the entire river is affected by ice by mid-November. The formation of ice jams and underwater ice is characteristic of this period.1
Thawing
The thawing process occurs at different times depending on the section of the river:1
- Upper reaches: Thawing begins toward the end of April.1
- Middle reaches: Thawing occurs in May.1
- Lower reaches: Thawing takes place from May to mid-June.1