Articles | Volume 16, issue 17
https://doi.org/10.5194/bg-16-3297-2019
https://doi.org/10.5194/bg-16-3297-2019
Research article
 | 
04 Sep 2019
Research article |  | 04 Sep 2019

Applicability and consequences of the integration of alternative models for CO2 transfer velocity into a process-based lake model

Petri Kiuru, Anne Ojala, Ivan Mammarella, Jouni Heiskanen, Kukka-Maaria Erkkilä, Heli Miettinen, Timo Vesala, and Timo Huttula

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Short summary
Many boreal lakes emit the greenhouse gas carbon dioxide (CO2) to the atmosphere. We incorporated four different gas exchange models into a physico-biochemical lake model and studied their ability to simulate lake air–water CO2 fluxes. The inclusion of refined gas exchange models in lake models that simulate carbon cycling is important to assess lake carbon budgets. However, higher estimates for inorganic carbon sources in boreal lakes are needed to balance the CO2 losses to the atmosphere.
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