Developing nutrient load-response relationships for total and dissolved reactive phosphorus for the three major tributaries to Lake St. Clair: Thames, Sydenham and Clinton rivers

This data set was developed in order to understand the role of Lake St. Clair (USA–Canada) in modulating phosphorus loads. Specifically, this research will provide information on the simulated retention of nutrients (total and soluble reactive phosphorous) during ice-free period (March 1 to October 31) in 2009 in Lake St. Clair. We will use a three-dimensional coupled hydrodynamic and biogeochemical model (ELCOM-CAEDYM). The hydrodynamic model is an Estuary, Lake and Coastal Ocean Model (ELCOM). The biogeochemical model is a Computational Aquatic Ecosystem Dynamics Model (CAEDYM). The model was calibrated and validated in its previous application to Lake St. Clair (More details on model calibration and validation can be found in Bocaniov and Scavia, 2018: Water Resources Research, 54, 3825-3840; https://doi.org/10.1029/2017WR021876 ). We will use this model to simulate the transport and retention of nutrients and construct the tributary-specific load-response relationships. We will also look at the mechanisms responsible for retention of nutrients such as settling and re-suspension.

The main aim of this research is to understand the within-lake dynamics, transport, and retention of nutrients, particularly total and soluble reactive phosphorous, in Lake St. Clair. Specifically, this study will investigate the effects of Lake St. Clair in modulating nutrient loads from its three major tributaries: Thames, Sydenham and Clinton rivers. Note, that this data set will support the project titled "Lake Futures: Enhancing Adaptive Capacity and Resilience of Lakes and Their Watersheds". Lake Futures is a Pillar 3 project under the Global Water Futures Program funded by Canada First Research Excellence Fund.

Van Cappellen, P., Bocaniov, S., and Scavia, D. (2019). Developing nutrient load-response relationships for total and dissolved reactive phosphorus for the three major tributaries to Lake St. Clair: Thames, Sydenham and Clinton rivers. Waterloo, Canada: Canadian Cryospheric Information Network (CCIN). Unpublished Data.

Lake St. Clair, USA–Canada

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