About the Authors

John Spoelstra

John.Spoelstra@ec.gc.ca

Affiliations Water Science and Technology Directorate, Environment Canada, Burlington, Ontario, Canada, Department of Earth and Environmental Sciences, University of Waterloo, Waterloo, Ontario, Canada

Sherry L. Schiff

Affiliation Department of Earth and Environmental Sciences, University of Waterloo, Waterloo, Ontario, Canada

Susan J. Brown

Affiliation Water Science and Technology Directorate, Environment Canada, Burlington, Ontario, Canada

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JS SLS. Performed the experiments: JS SLS. Analyzed the data: JS SLS. Contributed reagents/materials/analysis tools: JS SLS SJB. Wrote the paper: JS SLS.