Articles | Volume 26, issue 1
https://doi.org/10.5194/hess-26-1-2022
https://doi.org/10.5194/hess-26-1-2022
Research article
 | 
03 Jan 2022
Research article |  | 03 Jan 2022

Synthesizing the impacts of baseflow contribution on concentration–discharge (CQ) relationships across Australia using a Bayesian hierarchical model

Danlu Guo, Camille Minaudo, Anna Lintern, Ulrike Bende-Michl, Shuci Liu, Kefeng Zhang, and Clément Duvert

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Cited articles

Ator, S. W., Brakebill, J. W., and Blomquist, J. D.: Sources, fate, and transport of nitrogen and phosphorus in the Chesapeake Bay watershed: An empirical model, Vol. 5167, US Department of the Interior, US Geological Survey, Baltimore, MD 21228, 2011. 
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Cartwright, I.: Concentration vs. streamflow (C-Q) relationships of major ions in south-eastern Australian rivers: Sources and fluxes of inorganic ions and nutrients, Appl. Geochem., 120, 104680, https://doi.org/10.1016/j.apgeochem.2020.104680, 2020. 
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Short summary
We investigate the impact of baseflow contribution on concentration–flow (CQ) relationships across the Australian continent. We developed a novel Bayesian hierarchical model for six water quality variables across 157 catchments that span five climate zones. For sediments and nutrients, the CQ slope is generally steeper for catchments with a higher median and a greater variability of baseflow contribution, highlighting the key role of variable flow pathways in particulate and solute export.
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