Long-Term Water Quality Trends in the Everglades

7/17/97

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Table of Contents

Long-Term Water Quality Trends in the Everglades

Long-Term Water Quality Monitoring Data : Uses in Everglades Restoration

Everglades Time Line

Long-Term Water Quality Trends #11; in the Everglades

Data Sources

Spatial & Temporal Patterns, 1978-1996

Flow-Weighted-Mean P Concentrations Water Years 1978-1991 vs. 1992-1996

Structure Flows Water Years 1978-1991 vs. 1992-1996

Total Phosphorus Loads Water Years 1978-1991 vs. 1992-1996

1978-1996 Phosphorus Concentrations

1978-1996 Structure Flows

1978-1996 Structure Total P Loads

EAA Rainfall & WCA/ENP Stages, 1978-1996

Long-Term Rainfall Variations

Recent Decreases in WCA Outflow P Concs. Potential Causal Factors

Data Analysis - Level I Standard Time-Series Analysis

Data Analysis - Level II Everglades Tracking Model

Tracking Model

Tracking Model Applications to Everglades

Model Applications

Model Application: ENP Shark River Slough

ENP Shark River Slough Inflows S12ABCD + S333

ENP Shark River Slough Interim P Limits Model Calibration

ENP Shark Slough Interim P Limits Calibration: Observed & Predicted Values

Shark Slough Interim P Limits Observed & Predicted Values, 1978-1996

ENP Shark River Slough Interim P Limits Flow-Adjusted Concentrations

ENP Shark River Slough Interim P Limits Flow-Adjusted Concentrations vs. Time

ENP Shark River Slough Interim P Limits Flow-Adjusted Concentrations, 1978-1996

ENP Shark River Slough Interim P Limits Flow-Adjusted Concentrations vs. Prediction Interval for 1978-79 (OFW) Period

ENP Shark River Slough Interim P Limits De-Trended Concentrations

Shark Slough Interim P Limits De-Trended (1978-1979) Concentrations vs. Basin Flow

ENP Shark River Slough Interim P Limits Concentration vs. Flow

ENP Shark River Slough Interim P Limits Target & Limit Derivation

ENP Shark River Slough Interim P Limits 12-Month Rolling Average Flows

ENP Shark River Slough Interim P Limits 12-Month Rolling, Flow-Weighted Means

ENP Shark River Slough Interim P Limits 12-Month Rolling Means, Flow-Adjusted

Model Application: EAA Total P Loads

EAA Phosphorus Load vs. Rainfall

Observed vs. Predicted EAA Phosphorus Load

EAA Runoff Adjusted P Loads

EAA Runoff P Load Reductions

EAA Runoff P Model: Independent Variables

EAA Runoff P Concentrations

EAA Runoff & ENP Inflow P Concentrations

Long-Term Water Quality Trends in the Everglades Conclusions

Long-Term Water Quality Trends in the Everglades Conclusions (ct.)

Long-Term Water Quality Trends in the Everglades Conclusions (ct.)

Author: William W. Walker, Jr.

Email: bill@wwwalker.net

Home Page: http://www.wwwalker.net

Other information:

presented at: "Symposium on Phosphorus Biogeochemistry in Florida Ecosystems"

Clearwater, Florida

July 13-16, 1997