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Article

Suitability of a Coupled Hydrodynamic Water Quality Model to Predict Changes in Water Quality from Altered Meteorological Boundary Conditions

South Australian Water Corporation, Adelaide, SA 5000, Australia
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Academic Editor: Julia Piantadosi
Water 2015, 7(1), 348-361; https://doi.org/10.3390/w7010348
Received: 30 May 2014 / Revised: 7 July 2014 / Accepted: 12 January 2015 / Published: 20 January 2015
(This article belongs to the Special Issue Water Resources in a Variable and Changing Climate)
Downscaled climate scenarios can be used to inform management decisions on investment in infrastructure or alternative water sources within water supply systems. Appropriate models of the system components, such as catchments, rivers, lakes and reservoirs, are required. The climatic sensitivity of the coupled hydrodynamic water quality model ELCOM-CAEDYM was investigated, by incrementally altering boundary conditions, to determine its suitability for evaluating climate change impacts. A series of simulations were run with altered boundary condition inputs for the reservoir. Air and inflowing water temperature (TEMP), wind speed (WIND) and reservoir inflow and outflow volumes (FLOW) were altered to investigate the sensitivity of these key drivers over relevant domains. The simulated water quality variables responded in broadly plausible ways to the altered boundary conditions; sensitivity of the simulated cyanobacteria population to increases in temperature was similar to published values. However the negative response of total chlorophyll-a suggested by the model was not supported by an empirical analysis of climatic sensitivity. This study demonstrated that ELCOM-CAEDYM is sensitive to climate drivers and may be suitable for use in climate impact studies. It is recommended that the influence of structural and parameter derived uncertainty on the results be evaluated. Important factors in determining phytoplankton growth were identified and the importance of inflowing water quality was emphasized. View Full-Text
Keywords: water quality; sensitivity; ELCOM-CAEDYM water quality; sensitivity; ELCOM-CAEDYM
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MDPI and ACS Style

Van der Linden, L.; Daly, R.I.; Burch, M.D. Suitability of a Coupled Hydrodynamic Water Quality Model to Predict Changes in Water Quality from Altered Meteorological Boundary Conditions. Water 2015, 7, 348-361. https://doi.org/10.3390/w7010348

AMA Style

Van der Linden L, Daly RI, Burch MD. Suitability of a Coupled Hydrodynamic Water Quality Model to Predict Changes in Water Quality from Altered Meteorological Boundary Conditions. Water. 2015; 7(1):348-361. https://doi.org/10.3390/w7010348

Chicago/Turabian Style

Van der Linden, Leon, Robert I. Daly, and Mike D. Burch 2015. "Suitability of a Coupled Hydrodynamic Water Quality Model to Predict Changes in Water Quality from Altered Meteorological Boundary Conditions" Water 7, no. 1: 348-361. https://doi.org/10.3390/w7010348

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