A4. Water: International Sources

18. SPARROW modelling of Great Lakes water basin


International Joint Commission, International Watershed Commission

Applies to

Great Lakes Basin

Prepared by

International Joint Commission, US Geological Survey, National Research Council of Canada, Environment Canada, Agriculture and Agri-Food Canada, Statistics Canada

Submitted to/publication requirements

Report will be published by IJC; currently awaiting peer review.

Due date/ frequency

Publication forthcoming; not yet released.

Minimum data requirements

SPARROW is a binational, water quality model (Spatially-Referenced Regression on Watershed Attributes). "The model relates in-stream water-quality measurements to spatially referenced characteristics of watersheds, including contaminant sources and factors influencing terrestrial and aquatic transport. SPARROW empirically estimates the origin and fate of contaminants in river networks and quantifies uncertainties in model predictions."


Issues/ drawbacks

May not cover the entire GGH; focuses on the Great Lakes, rather than inland water systems in southern Ontario.

Other information

The purpose of the model is to estimate regional contaminant loading and quantify sources, using a harmonized hydrographic transboundary data set.