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SSF-Svalbard Science Forum

Methane cycling in Arctic and Subarctic lake sediments

Tildelt: kr 67 718

This is the main field campaign within my PhD project on methane cycling processes in Arctic lacustrine sediments. I will join the PolarCH4ives and UiB field campaign and will collect lake sediment cores from 5 lakes in the Femmilsjøen area to investigate methane production and consumption over time. Through the stable isotopic and radiomethane analyses of sediment cores, I will explore whether - and to what extent - the biogenic CH4 contribution by Arctic lakes to global net methane emissions may have been influenced by different climatic periods in the Holocene. An essential part of the fieldwork will be subsampling of a subset of sediment cores immediately after their retrieval because gases diffuse rapidly to the air.

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SSF-Svalbard Science Forum