Table of Contents
SPARROW and the TMDL Process
SPARROW SPAtially Referenced Regression On Watershed attributes
Talk Outline
Description of SPARROW
PPT Slide
PPT Slide
PPT Slide
SPARROW Processes
Schematic of a Nested Basin
Estimated Equation
Dependent Variable
PPT Slide
Reach Network
PPT Slide
Nutrient Sources
PPT Slide
PPT Slide
PPT Slide
Land-To-Water Delivery Factors
PPT Slide
Estimation Methodology
TN Model Estimates
TP Model Estimates
Predicted vs. Observed for TN Model
Predicted vs. Observed for TP Model
Map of TN Residuals
Map of TP Residuals
PPT Slide
Comparison of Chesapeake Bay HSPF and National SPARROW Models for TN
PPT Slide
PPT Slide
PPT Slide
Map of Mississippi Basin Delivery Efficiency
PPT Slide
PPT Slide
PPT Slide
SPARROW Support of TMDL Process
Utility of Existing SPARROW Models for TMDL
Needed Improvements to SPARROW to Enhance Local-Scale Modeling Capability
Data Improvements
Model Improvements
Estimation Improvements
Estimation Improvements (continued)
Nested SPARROW Example
Nested SPARROW Method
TN Nested SPARROW Example
Local Sample Requirements
Sample Size Requirements
Time-Dependent SPARROW Models
Near-Term SPARROW Enhancements
Extended-Term SPARROW Enhancements
Final Remarks
Why Consider a Statistical Model
More Information is Better Than Less
|