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A Deterministic Model for Predicting Hourly Dissolved Oxygen Change: Development and Application to a Shallow Eutrophic Lake

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School of Renewable Natural Resources, Louisiana State University Agricultural Center, 227 Highland Road, Baton Rouge, LA 70803, USA
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Academic Editor: Benoit Demars
Water 2016, 8(2), 41; https://doi.org/10.3390/w8020041
Received: 10 August 2015 / Revised: 20 January 2016 / Accepted: 21 January 2016 / Published: 29 January 2016
Predicting dissolved oxygen (DO) change at a high frequency in water bodies is useful for water quality management. In this study, we developed a deterministic model that can predict hourly DO change in a water body with high frequency weather parameters. The study was conducted during August 2008–July 2009 in a eutrophic shallow lake in Louisiana, USA. An environment monitoring buoy was deployed to record DO, water temperature and chlorophyll-a concentration at 15-min intervals, and hourly weather data including air temperature, precipitation, wind speed, relative humidity, and solar radiation were gathered from a nearby weather station. These data formed a foundation for developing a DO model that predicts rapid change of source and sink components including photosynthesis, re-aeration, respiration, and oxygen consumption by sediments. We then applied the model to a studied shallow lake that is widely representative of lake water conditions in the subtropical southern United States. Overall, the model successfully simulated high-time fluctuation of DO in the studied lake, showing good predictability for extreme algal bloom events. However, a knowledge gap still exists in accurately quantifying oxygen source produced by photosynthesis in high frequency DO modeling. View Full-Text
Keywords: dissolved oxygen; DO modeling; eutrophication; oxygen depletion; shallow lake; subtropical dissolved oxygen; DO modeling; eutrophication; oxygen depletion; shallow lake; subtropical
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MDPI and ACS Style

Xu, Z.; Xu, Y.J. A Deterministic Model for Predicting Hourly Dissolved Oxygen Change: Development and Application to a Shallow Eutrophic Lake. Water 2016, 8, 41. https://doi.org/10.3390/w8020041

AMA Style

Xu Z, Xu YJ. A Deterministic Model for Predicting Hourly Dissolved Oxygen Change: Development and Application to a Shallow Eutrophic Lake. Water. 2016; 8(2):41. https://doi.org/10.3390/w8020041

Chicago/Turabian Style

Xu, Zhen; Xu, Y. J. 2016. "A Deterministic Model for Predicting Hourly Dissolved Oxygen Change: Development and Application to a Shallow Eutrophic Lake" Water 8, no. 2: 41. https://doi.org/10.3390/w8020041

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