Dale M Robertson
Dale Robertson is a Research Hydrologist with the Upper Midwest Water Science Center.
Dale is an Adjunct Professor at the University of Wisconsin-Green Bay, Michigan Technological University, and University of Toledo, and a Honorary Fellow with the Center for Limnology at the University of Wisconsin-Madison. His current research with the USGS deals with modeling eutrophication and mixing in lakes, estimating loads and concentrations of nutrients and sediment in streams over large geographic areas, such as the Great Lakes and Mississippi River Basins, developing nutrient criteria for streams and rivers, and examining the effects of climate change on the physical dynamics, ice cover, and productivity of lakes.
AREAS OF EXPERTISE
- Biogeochemistry - Hydrology/Limnology
- Eutrophication - Nutrient Transport and Fate
- Limnology
- Water-quality modeling in Lakes
- Watershed modeling (SPARROW)
- Influence of environmental factors, watershed management strategies, and in-lake management alternatives on the water quality of rivers and lakes
- Climate Change - Ice as climatic indicators
- Regional loading estimates
Education and Certifications
Post-Doctoral Research Fellow, in Reservoir Modeling - Centre for Water Research, University of Western Australia, Perth. 1989-1991.
Ph.D Oceanography and Limnology - University of Wisconsin-Madison.
Dissertation: "The Use of Lake Water Temperature and Ice Cover as Climatic Indicators", 1984-1989.
M.S. Oceanography and Limnology-University of Wisconsin-Madison.
Thesis:"Interbasin Separation and Its Impact on the Annual Heat Budgets of the Individual Basins in Trout Lake, Wisconsin," 1981-1984.
B.S. Biology, Chemistry, and Mathematics - St. Norbert College, DePere, Wisconsin, 1976-1981.
Science and Products
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Partitioning and transformation of organic and inorganic phosphorus among dissolved, colloidal and particulate phases in a hypereutrophic freshwater estuary
Phosphorus (P) loadings to the Great Lakes have been regulated for decades, but re-eutrophication and seasonal hypoxia have recently been increasingly reported. It is of paramount importance to better understand the fate, transformation, and biogeochemical cycling processes of different P species across the river-lake interface. We report here results on chemical speciation of P in the...
Authors
Bin Yang, Hui Lin, Sarah L Bartlett, Erin M Houghton, Dale M. Robertson, Laodong Guo
Nitrogen and phosphorus sources and delivery from the Mississippi/Atchafalaya River Basin: An update using 2012 SPARROW models
Nitrogen (N) and phosphorus (P) inputs throughout the Mississippi/Atchafalaya River Basin (MARB) have been linked to the Gulf of Mexico hypoxia and water‐quality problems throughout the MARB. To describe N and P loading throughout the MARB, SPAtially Referenced Regression On Watershed attributes (SPARROW) models were previously developed based on nutrient inputs and management similar to...
Authors
Dale M. Robertson, David A. Saad
Evaluating management options to reduce Lake Erie algal blooms using an ensemble of watershed models
Reducing harmful algal blooms in Lake Erie, situated between the United States and Canada, requires implementing best management practices to decrease nutrient loading from upstream sources. Bi-national water quality targets have been set for total and dissolved phosphorus loads, with the ultimate goal of reaching these targets in 9-out-of-10 years. Row crop agriculture dominates the...
Authors
Jay F. Martin, Margaret M Kalcic, Noel Aloysis, Anna Apostel, Michael Brooker, Grey R. Evenson, Jeffrey B Kast, Haley Kujawa, Asmita Murumkar, Richard Becker, Chelsie Boles, Remegio Confesor, Awoke T Dagnew, Tian Guo, Colleen M Long, Rebecca Logsdon Muenich, Donald Scavia, Todd Redder, Dale M. Robertson, Yu-Chen Wang
Uncertainty in critical source area predictions from watershed-scale hydrologic models
Watershed-scale hydrologic models are frequently used to inform conservation and restoration efforts by identifying critical source areas (CSAs; alternatively 'hotspots'), defined as areas that export relatively greater quantities of nutrients and sediment. The CSAs can then be prioritized or ‘targeted’ for conservation and restoration to ensure efficient use of limited resources...
Authors
Grey R. Evenson, Margaret M Kalcic, Yu-Chen Wang, Dale M. Robertson, Donald Scavia, Jay Martin, Noel Aloysius, Anna Apostel, Chelsie Boles, Michael Brooker, Remegio Confesor, Awoke T Dagnew, Tian Guo, Jeffrey Kast, Hailey Kajawa, Rebecca Logsdon Muenich, Asmita Murumkar, Todd Redder
Importance of accurately quantifying internal loading in developing phosphorus reduction strategies for a chain of shallow lakes
The Winnebago Pool is a chain of 4 shallow lakes in Wisconsin. Because of high external phosphorus (P) inputs to the lakes, the lakes became highly eutrophic, with much P contained in their sediments. In developing a total maximum daily load (TMDL) for these lakes, it is important to determine how their phosphorus concentrations should respond to changes in external P loading. In many...
Authors
Dale M. Robertson, Matthew W. Diebel
Forecasting the combined effects of anticipated climate change and agricultural conservation practices on fish recruitment dynamics in Lake Erie
Many aquatic ecosystems are experiencing multiple anthropogenic stressors that threaten their ability to support ecologically and economically important fish species. Two of the most ubiquitous stressors are climate change and non‐point source nutrient pollution.Agricultural conservation practices (ACPs, i.e. farming practices that reduce runoff, prevent erosion, and curb excessive...
Authors
David A Dippold, Noel Aloysis, S. Conor Keitzer, Haw Yen, Jeffrey G. Arnold, Prasad Daggupati, Michael E. Fraker, Jay F. Martin, Dale M. Robertson, Scott P. Sowa, Mari-Vaughn V. Johnson, Mike J. White, Stuart A. Ludsin
Seasonal epilimnetic temperature patterns and trends in a suite of lakes from Wisconsin (USA), Germany and Finland
Epilimnetic temperatures from the early 1980s through 2017 were analyzed for 12 Wisconsin, German and Finnish lakes. Seasonal temperature metrics exhibited large interannual variability with trends differing among regions. In the Wisconsin lakes, only late summer and fall temperatures increased significantly. In the northeastern Germany lakes, temperatures increased in all seasons, but...
Authors
Richard C. Lathrop, Peter Kasprzak, Marjo Tarvainen, Anne-Mari Ventela, Tapio Keskinen, Rainer Koschel, Dale M. Robertson
Phosphorus and nitrogen transport in the binational Great Lakes Basin estimated using SPARROW watershed models
Eutrophication problems in the Great Lakes are caused by excessive nutrient inputs (primarily phosphorus, P, and nitrogen, N) from various sources throughout its basin. In developing protection and restoration plans, it is important to know where and from what sources the nutrients originate. As part of a binational effort, Midcontinent SPARROW (SPAtially Referenced Regression On...
Authors
Dale M. Robertson, David A. Saad, Glenn A. Benoy, Ivana Vouk, Gregory E. Schwarz, Michael T Laitta
Estimates of long-term mean daily streamflow and annual nutrient and suspended-sediment loads considered for use in regional SPARROW models of the Conterminous United States, 2012 base year
Streamflow, nutrient, and sediment concentration data needed to estimate long-term mean daily streamflow and annual constituent loads were compiled from Federal, State, Tribal, and regional agencies, universities, and nongovernmental organizations. The streamflow and loads are used to develop Spatially Referenced Regressions on Watershed Attributes (SPARROW) models. SPARROW models help...
Authors
David A. Saad, Gregory E. Schwarz, Denise M. Argue, David W. Anning, Scott A. Ator, Anne B. Hoos, Stephen D. Preston, Dale M. Robertson, Daniel Wise
Modelling for catchment management
Catchment models are useful tools to help describe and quantify the sources, transport, and fate of sediment, nutrients, and other constituents in a landscape. Results from catchment models are used to quantify and understand existing conditions and used in restoration efforts by defining areas with highest contributions (hotspots, where actions would be most beneficial) and describing...
Authors
Aroon Parshotam, Dale M. Robertson
Physical, biogeochemical, and meteorological factors responsible for interannual changes in cyanobacterial community composition and biovolume over two decades in a eutrophic lake
This study used a 20-year dataset (1995–2014) to identify factors affecting cyanobacterial community composition (CCC) and abundance in a eutrophic lake. We hypothesized that differences in thermal structure, nutrients, and meteorology drive interannual variability in CCC and abundance. Cluster analysis differentiated dominant cyanobacteria into rare, low abundance, or sporadically...
Authors
Chelsea A. Weirich, Dale M. Robertson, Todd R. Miller
Spatially referenced models of streamflow and nitrogen, phosphorus, and suspended-sediment loads in streams of the midwestern United States
In this report, SPAtially Referenced Regression On Watershed attributes (SPARROW) models developed to describe long-term (2000–14) mean-annual streamflow, total nitrogen (TN), total phosphorus (TP), and suspended-sediment (SS) transport in streams of the Midwestern part of the United States (the Mississippi River, Great Lakes, and Red River of the North Basins) are described. The...
Authors
Dale M. Robertson, David A. Saad
Science and Products
Filter Total Items: 15
Filter Total Items: 13
No Result Found
Filter Total Items: 153
Partitioning and transformation of organic and inorganic phosphorus among dissolved, colloidal and particulate phases in a hypereutrophic freshwater estuary
Phosphorus (P) loadings to the Great Lakes have been regulated for decades, but re-eutrophication and seasonal hypoxia have recently been increasingly reported. It is of paramount importance to better understand the fate, transformation, and biogeochemical cycling processes of different P species across the river-lake interface. We report here results on chemical speciation of P in the...
Authors
Bin Yang, Hui Lin, Sarah L Bartlett, Erin M Houghton, Dale M. Robertson, Laodong Guo
Nitrogen and phosphorus sources and delivery from the Mississippi/Atchafalaya River Basin: An update using 2012 SPARROW models
Nitrogen (N) and phosphorus (P) inputs throughout the Mississippi/Atchafalaya River Basin (MARB) have been linked to the Gulf of Mexico hypoxia and water‐quality problems throughout the MARB. To describe N and P loading throughout the MARB, SPAtially Referenced Regression On Watershed attributes (SPARROW) models were previously developed based on nutrient inputs and management similar to...
Authors
Dale M. Robertson, David A. Saad
Evaluating management options to reduce Lake Erie algal blooms using an ensemble of watershed models
Reducing harmful algal blooms in Lake Erie, situated between the United States and Canada, requires implementing best management practices to decrease nutrient loading from upstream sources. Bi-national water quality targets have been set for total and dissolved phosphorus loads, with the ultimate goal of reaching these targets in 9-out-of-10 years. Row crop agriculture dominates the...
Authors
Jay F. Martin, Margaret M Kalcic, Noel Aloysis, Anna Apostel, Michael Brooker, Grey R. Evenson, Jeffrey B Kast, Haley Kujawa, Asmita Murumkar, Richard Becker, Chelsie Boles, Remegio Confesor, Awoke T Dagnew, Tian Guo, Colleen M Long, Rebecca Logsdon Muenich, Donald Scavia, Todd Redder, Dale M. Robertson, Yu-Chen Wang
Uncertainty in critical source area predictions from watershed-scale hydrologic models
Watershed-scale hydrologic models are frequently used to inform conservation and restoration efforts by identifying critical source areas (CSAs; alternatively 'hotspots'), defined as areas that export relatively greater quantities of nutrients and sediment. The CSAs can then be prioritized or ‘targeted’ for conservation and restoration to ensure efficient use of limited resources...
Authors
Grey R. Evenson, Margaret M Kalcic, Yu-Chen Wang, Dale M. Robertson, Donald Scavia, Jay Martin, Noel Aloysius, Anna Apostel, Chelsie Boles, Michael Brooker, Remegio Confesor, Awoke T Dagnew, Tian Guo, Jeffrey Kast, Hailey Kajawa, Rebecca Logsdon Muenich, Asmita Murumkar, Todd Redder
Importance of accurately quantifying internal loading in developing phosphorus reduction strategies for a chain of shallow lakes
The Winnebago Pool is a chain of 4 shallow lakes in Wisconsin. Because of high external phosphorus (P) inputs to the lakes, the lakes became highly eutrophic, with much P contained in their sediments. In developing a total maximum daily load (TMDL) for these lakes, it is important to determine how their phosphorus concentrations should respond to changes in external P loading. In many...
Authors
Dale M. Robertson, Matthew W. Diebel
Forecasting the combined effects of anticipated climate change and agricultural conservation practices on fish recruitment dynamics in Lake Erie
Many aquatic ecosystems are experiencing multiple anthropogenic stressors that threaten their ability to support ecologically and economically important fish species. Two of the most ubiquitous stressors are climate change and non‐point source nutrient pollution.Agricultural conservation practices (ACPs, i.e. farming practices that reduce runoff, prevent erosion, and curb excessive...
Authors
David A Dippold, Noel Aloysis, S. Conor Keitzer, Haw Yen, Jeffrey G. Arnold, Prasad Daggupati, Michael E. Fraker, Jay F. Martin, Dale M. Robertson, Scott P. Sowa, Mari-Vaughn V. Johnson, Mike J. White, Stuart A. Ludsin
Seasonal epilimnetic temperature patterns and trends in a suite of lakes from Wisconsin (USA), Germany and Finland
Epilimnetic temperatures from the early 1980s through 2017 were analyzed for 12 Wisconsin, German and Finnish lakes. Seasonal temperature metrics exhibited large interannual variability with trends differing among regions. In the Wisconsin lakes, only late summer and fall temperatures increased significantly. In the northeastern Germany lakes, temperatures increased in all seasons, but...
Authors
Richard C. Lathrop, Peter Kasprzak, Marjo Tarvainen, Anne-Mari Ventela, Tapio Keskinen, Rainer Koschel, Dale M. Robertson
Phosphorus and nitrogen transport in the binational Great Lakes Basin estimated using SPARROW watershed models
Eutrophication problems in the Great Lakes are caused by excessive nutrient inputs (primarily phosphorus, P, and nitrogen, N) from various sources throughout its basin. In developing protection and restoration plans, it is important to know where and from what sources the nutrients originate. As part of a binational effort, Midcontinent SPARROW (SPAtially Referenced Regression On...
Authors
Dale M. Robertson, David A. Saad, Glenn A. Benoy, Ivana Vouk, Gregory E. Schwarz, Michael T Laitta
Estimates of long-term mean daily streamflow and annual nutrient and suspended-sediment loads considered for use in regional SPARROW models of the Conterminous United States, 2012 base year
Streamflow, nutrient, and sediment concentration data needed to estimate long-term mean daily streamflow and annual constituent loads were compiled from Federal, State, Tribal, and regional agencies, universities, and nongovernmental organizations. The streamflow and loads are used to develop Spatially Referenced Regressions on Watershed Attributes (SPARROW) models. SPARROW models help...
Authors
David A. Saad, Gregory E. Schwarz, Denise M. Argue, David W. Anning, Scott A. Ator, Anne B. Hoos, Stephen D. Preston, Dale M. Robertson, Daniel Wise
Modelling for catchment management
Catchment models are useful tools to help describe and quantify the sources, transport, and fate of sediment, nutrients, and other constituents in a landscape. Results from catchment models are used to quantify and understand existing conditions and used in restoration efforts by defining areas with highest contributions (hotspots, where actions would be most beneficial) and describing...
Authors
Aroon Parshotam, Dale M. Robertson
Physical, biogeochemical, and meteorological factors responsible for interannual changes in cyanobacterial community composition and biovolume over two decades in a eutrophic lake
This study used a 20-year dataset (1995–2014) to identify factors affecting cyanobacterial community composition (CCC) and abundance in a eutrophic lake. We hypothesized that differences in thermal structure, nutrients, and meteorology drive interannual variability in CCC and abundance. Cluster analysis differentiated dominant cyanobacteria into rare, low abundance, or sporadically...
Authors
Chelsea A. Weirich, Dale M. Robertson, Todd R. Miller
Spatially referenced models of streamflow and nitrogen, phosphorus, and suspended-sediment loads in streams of the midwestern United States
In this report, SPAtially Referenced Regression On Watershed attributes (SPARROW) models developed to describe long-term (2000–14) mean-annual streamflow, total nitrogen (TN), total phosphorus (TP), and suspended-sediment (SS) transport in streams of the Midwestern part of the United States (the Mississippi River, Great Lakes, and Red River of the North Basins) are described. The...
Authors
Dale M. Robertson, David A. Saad