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Integrated Modeling for Ecosystem Restoration of Marshes in the Lake Calumet Area

Principal Investigator: Yanqing Lian
Initiation Date: February 1, 2008
Completion Date: January 31, 2010
Affiliation: Illinois State Water Survey

 

Objectives
The goal of this project is to develop effective modeling tools to assess ecosystem restoration plans and develop benchmarks for the ecological restoration in the Lake Calumet area. Specific objectives are:

  1. To develop water quality simulation component of the SWMM model for watershed and stream than can be used as a basis for determining the best water quality management strategies for the Lake Calumet Cluster Site and the adjacent open spaces it affects: Indian Ridge Marsh, Big Marsh, Heron Pond, and Dead Stick Pond.

  2. To develop a flow and solute transport model for groundwater system in the area, particularly the Cluster Site, and couple it to SWMM to simulate the surface and groundwater interactions.

  3. To evaluate the water quality and ecological impacts of different remedial options proposed for the Cluster Site as well as other upland properties in the marsh watersheds, using the modeling tools

  4. To develop benchmark plans which include a combination of various measures in achieving water quality targets Plans to accomplish project goal(s).

Methodology
Work plans to achieve the objective include data collection, model establishment, model calibration and verification, and model applications.  The modeling tools will be used to test particular restoration plans and designs, conduct scenario analysis for research questions, and develop benchmark for ecosystem restoration.  Particularly, the simulation models will be integrated with an optimization algorithm to develop benchmark-optimized land uses and flow controls for ecological restoration of the study areas.  Uncertainty analysis will be conducted through all modeling procedures from model calibration to result analysis.

Rationale
The project addresses the pressing environmental problems in an important area in the Great Lake region, following many finished or ongoing major projects.  We attempt to address the gaps between past or ongoing studies and decision making, problem solution for the restoration of the study area, by developing modeling tools, which will not only be complementary to the environmental observation systems in the area but also provide evaluating or predicting functions for future conditions. A reliable flow and water quality simulation model is still urgently needed by management authorities and stakeholders in order to address the outstanding ecological and water quality problems in the Lake Calumet area and many other areas with similar situations.  Therefore, this project is expected to contribute to the long-range improvement in the sustainability of the National Sea Grant Program.