Biogeosciences
Biogeosciences
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Articles | Volume 15, issue 7
Articles | Volume 15, issue 7
https://doi.org/10.5194/bg-15-2021-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-15-2021-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 15, issue 7
Research article
 | 
09 Apr 2018
Research article |  | 09 Apr 2018

High-frequency productivity estimates for a lake from free-water CO2 concentration measurements

Maria Provenzale, Anne Ojala, Jouni Heiskanen, Kukka-Maaria Erkkilä, Ivan Mammarella, Pertti Hari, and Timo Vesala

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Latest update: 24 Dec 2024
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Short summary
We extensively tested and refined a direct, high-frequency free-water CO2 measurement method to study the lake net ecosystem productivity. The method was first proposed in 2008, but neglected ever since. With high-frequency direct methods, we can calculate the lake productivity more precisely, and parameterise its dependency on environmental variables. This helps us expand our knowledge on the carbon cycle in the water, and leads to a better integration of water bodies in carbon budgets.
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