Articles | Volume 15, issue 7
Biogeosciences, 15, 2021–2032, 2018
https://doi.org/10.5194/bg-15-2021-2018
Biogeosciences, 15, 2021–2032, 2018
https://doi.org/10.5194/bg-15-2021-2018

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 et al.

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Cited articles

Åberg, J., Jansson, M., and Jonsson, A.: Importance of water temperature and thermal stratification dynamics for temporal variation of surface water CO2 in a boreal lake, J. Geophys. Res., 115, G02024, https://doi.org/10.1029/2009JG001085, 2010. a
Aubinet, M., Vesala, T., and Papale, D.: Eddy Covariance A Practical Guide to Measurement and Data Analysis, Springer, Dordrecht, the Netherlands, 2012. a
Battin, T. J., Luyssaert, S., Kaplan, L. A., Aufdenkampe, A. K., Richter, A., and Tranvik, L. J.: The boundless carbon cycle, Nat. Geosci., 2, 598–600, 2009. a
Bender, M., Grande, K., Johnson, K., Marra, J., Williams, P. J., Sieburth, J., Pilson, M., Langdon, C., Hitchcock, G., Orchardo, J., Hunt, C., Donaghay, P., and Heinemann, K.: A comparison of four methods for determining planktonic community production, Limnol. Oceanogr., 32, 1085–1098, 1987. a
Berggren, M., Lapierre, J. F., and del Giorgio, P. A.: Magnitude and regulation of bacterioplankton respiratory quotient across freshwater environmental gradients, ISME J., 6, 984–993, 2012. a
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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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