Articles | Volume 25, issue 2
Hydrol. Earth Syst. Sci., 25, 1009–1032, 2021
https://doi.org/10.5194/hess-25-1009-2021
Hydrol. Earth Syst. Sci., 25, 1009–1032, 2021
https://doi.org/10.5194/hess-25-1009-2021

Research article 25 Feb 2021

Research article | 25 Feb 2021

Lake thermal structure drives interannual variability in summer anoxia dynamics in a eutrophic lake over 37 years

Robert Ladwig et al.

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Lake thermal structure drives inter-annual variability in summer anoxia dynamics in a eutrophic lake over 37 years ver 1 R. Ladwig, P. C. Hanson, H. A. Dugan, C. C. Carey, Y. Zhang, L. Shu, C. J. Duffy, and K. M. Cobourn https://doi.org/10.6073/pasta/418bf748dc2351f026c25111f7cbfd7e

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Short summary
Using a modeling framework applied to 37 years of dissolved oxygen time series data from Lake Mendota, we identified the timing and intensity of thermal energy stored in the lake water column, the lake's resilience to mixing, and surface primary production as the most important drivers of interannual dynamics of low oxygen concentrations at the lake bottom. Due to climate change, we expect an increase in the spatial and temporal extent of low oxygen concentrations in Lake Mendota.