Permafrost thawing in high-Arctic causing increased organic carbon and dissolved nitrogen export to sea

Name of applicant

Tenna Riis

Institution

Aarhus University

Amount

DKK 450,000

Year

2020

Type of grant

Research Infrastructure

Summary

The overall aim of this project is to determine how climate-induced permafrost thaw and thermokarst activity will influence organic carbon (OC) and nitrogen (N) processing in high-Arctic streams and to estimate export rate of terrestrial OC and N to the sea under current and future climate. We will conduct field experiments quantifying OC and N run-off from areas affected by thermo-karst and permafrost thaw, and the role of streams as OC and N reactors. The results will strengthen our ability to predict ecological changes in Arctic aquatic ecosystems caused by altered hydrological and temperature regimes as a consequence of climate changes.

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