Sediment Resuspension and Transport: Notes from the Trapping Program

Brian J. Eadie1, Margaret B. Lansing1, Andy Winkelman2, Brandon Giroux2, and Craig Riley2
1NOAA-GLERL and 2CILER

Objectives:

  1. quantify the distribution of particle concentrations and settling materials associated with episodic events and place them in an annual context, and
  2. characterize the organic and nutrient composition of these materials for the purpose of estimating constituent fluxes.

Approach:

Results:

Episodic Event Flux Calculations for the southern basin of Lake Michigan
IntervalCalculation BasisMass (106 MT)TP (103 MT)
Annual External LoadIJC (1995)12 - 3
    
Day - April 10, 1996Calibrated Satellite Image11
    
Month - March, 1998Model (Lou et al, 1999)4 
Month - March, 1998Traps57
    
Seasonal - Unstratified, 1998Traps2228
Seasonal - Unstratified averageTraps (1980-99; n=8)13 +/- 718 +/- 8

Lou, J., D.J. Schwab, and D. Beletsky (1999). Suspended sediment transport modeling in Lake Michigan. Proceedings of the Canadian Coastal Conference.

IJC (1995). State of the Great Lakes.

Collaborators:
Robbins (transport into a depositional region), Johengen (nutrient fluxes), Schwab and Lou (resuspension and transport), Edgington, Klump, and Waples (coastal resuspension), Hornbuckle (HOC resuspension), Kerfoot (resting eggs), and Gardner (nitrogen recycling).