2018
DOI: 10.5194/bg-15-2251-2018
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QUAL-NET, a high temporal-resolution eutrophication model for large hydrographic networks

Abstract: Abstract. To allow climate change impact assessment of water quality in river systems, the scientific community lacks efficient deterministic models able to simulate hydrological and biogeochemical processes in drainage networks at the regional scale, with high temporal resolution and water temperature explicitly determined. The model QUALity-NETwork (QUAL-NET) was developed and tested on the Middle Loire River Corridor, a sub-catchment of the Loire River in France, prone to eutrophication. Hourly variations c… Show more

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Cited by 26 publications
(16 citation statements)
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References 77 publications
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“…between 1978 and 1986) by an increase in the aquatic organic matter productivity during this period which would have been important enough to prevent the total degradation of the POM quantities produced 33 . The well-known eutrophic conditions of the Loire River over 1978–1986 leading to a high aquatic primary production, fully reinforces our hypothesis 34 . The confrontation of bulk geochemical and optical analyses suggests that degradation processes lead to an increase in the proportions of more refractory organic material, i.e.…”
Section: Results Acquired From Our Worksupporting
confidence: 87%
“…between 1978 and 1986) by an increase in the aquatic organic matter productivity during this period which would have been important enough to prevent the total degradation of the POM quantities produced 33 . The well-known eutrophic conditions of the Loire River over 1978–1986 leading to a high aquatic primary production, fully reinforces our hypothesis 34 . The confrontation of bulk geochemical and optical analyses suggests that degradation processes lead to an increase in the proportions of more refractory organic material, i.e.…”
Section: Results Acquired From Our Worksupporting
confidence: 87%
“…However, most of the model evaluation relies only on a single station at the outlet of the watershed (Wellen et al, 2015). A better performance is necessarily expected for a model describing a stretch of river (Minaudo et al, 2018, specifically for Loire River) than for other at a whole watershed scale (e.g., Malagó et al, 2017, for the Danube) as it is the case in our study.…”
Section: The Models and Their Evaluationmentioning
confidence: 70%
“…The modeling approach implemented at the whole basin scale differs from the several other studies already published on the Loire River, focusing mostly on the middle Loire River (Minaudo et al, 2018;Descy et al, 2011), from the Allier to the Maine rivers, close to the Montjean-sur-Loire outlet station. Taking into account upstream basins (upper Loire and Allier), as well as all tributaries, made it possible to synthesize most of the data available over this large territory covering 20% of France, to quantify nutrient fluxes and eutrophication.…”
Section: Discussionmentioning
confidence: 99%
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“…In addition to these box approaches, a number of more comprehensive mechanistic models, describing biogeochemical processes involved in carbon cycling and CO 2 evasion, have been set up for oceans (e.g., Doney et al, 2004;Aumont et al, 2015), coastal waters (e.g., Borges et al, 2006;Gypens et al, 2004Gypens et al, , 2009Gypens et al, , 2011 and estuaries (e.g., Cai and Wang, 1998;Volta et al, 2014;Laruelle et al, 2019). In inland waters, the NICE-BGC model (Nakayama, 2016) accurately represents CO 2 evasion at the global scale. However, to our knowledge, while several process-based river models describe the carbon cycle through organic matter input and degradation by aquatic microorganisms (e.g., PEGASE, Smitz et al, 1997;ProSe, Vilmin et al, 2018;QUAL2Kw, Pelletier et al, 2006;QUAL-NET, Minaudo et al, 2018, QUASAR, Whitehead et al, 1997Riverstrahler, Billen et al, 1994;Garnier et al, 2002), none of them describes the inorganic carbon cycle including carbon dioxide outgassing.…”
mentioning
confidence: 99%