CONTRIBUTION OF TUNDRA LAKES IN WESTERN SIBERIA TO THE ATMOSPHERIC METHANE BUDGET

L.L. Golubyatnikov and V.S. Kazantsev
Izvestiya, Atmospheric and Oceanic Physics. 2013, vol.49, №4, pp. 395-403.

Summary

The emission of methane from tundra lakes in western Siberia is estimated on the basis of experi mental data. According to these estimates, over the warm season, the methane flux from the surfaces of lakes to the atmosphere amounts to 0.5 KtCH4 for Arctic tundra, 2.9 KtCH4 for typical tundra, and 8.5 KtCH4 for southern tundra. The short-term spring emission of methane as ice melts in tundra lakes of the region under consideration is determined with consideration for published estimates of the rate of generation of methane in northern-latitude lakes during the cold season. The contribution made by tundra lakes in western Siberia to the atmospheric methane budget is estimated at 20 KtCH4/year.