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Fu B, Horsburgh JS, Jakeman AJ, Gualtieri C, Arnold T, Marshall L, Green TR, Quinn NWT, Volk M, Hunt RJ, Vezzaro L, Croke BFW, Jakeman JD, Snow V, Rashleigh B. Modeling Water Quality in Watersheds: From Here to the Next Generation. Water Resour Res 2020; 56:10.1029/2020wr027721. [PMID: 33627891 PMCID: PMC7898158 DOI: 10.1029/2020wr027721] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 10/21/2020] [Indexed: 05/19/2023]
Abstract
In this synthesis, we assess present research and anticipate future development needs in modeling water quality in watersheds. We first discuss areas of potential improvement in the representation of freshwater systems pertaining to water quality, including representation of environmental interfaces, in-stream water quality and process interactions, soil health and land management, and (peri-)urban areas. In addition, we provide insights into the contemporary challenges in the practices of watershed water quality modeling, including quality control of monitoring data, model parameterization and calibration, uncertainty management, scale mismatches, and provisioning of modeling tools. Finally, we make three recommendations to provide a path forward for improving watershed water quality modeling science, infrastructure, and practices. These include building stronger collaborations between experimentalists and modelers, bridging gaps between modelers and stakeholders, and cultivating and applying procedural knowledge to better govern and support water quality modeling processes within organizations.
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Affiliation(s)
- B. Fu
- Fenner School of Environment and Society and Institute for Water Futures, Australian National University, Canberra, ACT, Australia
| | - J. S. Horsburgh
- Department of Civil and Environmental Engineering and Utah Water Research Laboratory, Utah State University, Logan, UT, USA
| | - A. J. Jakeman
- Fenner School of Environment and Society and Institute for Water Futures, Australian National University, Canberra, ACT, Australia
| | - C. Gualtieri
- Department of Civil, Architectural and Environmental Engineering, University of Napoli Federico II, Naples, Italy
| | - T. Arnold
- Grey Bruce Centre for Agroecology, Allenford, Ontario, Canada
| | - L. Marshall
- Water Research Centre, School of Civil and Environmental Engineering, UNSW, Sydney, New South Wales, Australia
| | - T. R. Green
- Agricultural Research Service, U.S. Department of Agriculture, Fort Collins, CO, USA
| | - N. W. T. Quinn
- Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - M. Volk
- Helmholtz Centre for Environmental Research—UFZ, Department of Computational Landscape Ecology, Leipzig, Germany
| | - R. J. Hunt
- Upper Midwest Water Science Center, United States Geological Survey, Middleton, WI, USA
| | - L. Vezzaro
- Department of Environmental Engineering (DTU Environment), Technical University of Denmark, Kongens Lyngby, Denmark
| | - B. F. W. Croke
- Fenner School of Environment and Society and Institute for Water Futures, Australian National University, Canberra, ACT, Australia
- Mathematical Sciences Institute, Australian National University, Canberra, ACT, Australia
| | - J. D. Jakeman
- Optimization and Uncertainty Quantification, Sandia National Laboratories, Albuquerque, NM, USA
| | - V. Snow
- AgResearch—Lincoln Research Centre, Christchurch, New Zealand
| | - B. Rashleigh
- Office of Research and Development, United States Environmental Protection Agency, Narragansett, RI, USA
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Drewry JJ, Newham LTH, Croke BFW. Suspended sediment, nitrogen and phosphorus concentrations and exports during storm-events to the Tuross estuary, Australia. J Environ Manage 2009; 90:879-887. [PMID: 18410990 DOI: 10.1016/j.jenvman.2008.02.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2007] [Revised: 01/23/2008] [Accepted: 02/22/2008] [Indexed: 05/26/2023]
Abstract
This paper presents a process for estimating pollutant loads from water quality data, to improve catchment-scale modelling in the region for resource management purposes. It describes a program to estimate suspended sediment, total and dissolved nitrogen and phosphorus loads to the Tuross estuary from the Tuross River catchment (1810 km(2)) of coastal southeast Australia. Event-based water quality sampling results obtained during storm events in 2005 are presented. Event 1, during July 2005 was the largest storm event in terms of peak flow for 3.5 years. Other events monitored were also in July, November and December 2005. The early July 2005 event had a flow-weighted mean suspended sediment (SS) concentration during the first 4 days of 63 mg L(-1). Of the events monitored, this was unusual as it was preceded by drought and had the largest SS concentrations (peaking at 180 mg L(-1)) during the rising-stage. In contrast, the November event had a much lower flow-weighted SS mean (28 mg L(-1)), even though peak flow magnitudes were similar. The July and November 2005 events had peak flows of 12,360 and 11,330 ML day(-1). Low-cost rising-stage siphon samplers were used to collect samples during the rapidly rising phase of these events. The use of such samplers and consideration of time-lead/lag flow adjustments, quantified using cross-correlation analysis to account for hysteresis effects, were incorporated into the load estimation techniques. The technique is a potentially useful approach for understanding relationships between water quality concentrations and flow for modelling catchment source strengths and transport processes.
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Affiliation(s)
- J J Drewry
- Integrated Catchment Assessment and Management Centre, The Australian National University, Canberra, ACT, Australia.
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