Sketch a simple conceptual model of Pine River Pond

Sketch a simple conceptual model of Pine River Pond showing the

lake, primary inputs, tributaries and removal mechanisms or storage.

Build the Lake Load Management Model for Phosphorus for Pine

River Pond

Use the land allocation from the DES file. You will need to

match NLCD land use (Links to an external site.) to categories in the

model.

Use the Mean value in the model for coefficients, waterfowl and

septic loads

Briefly describe how the model works, and answer the following

questions:

• List land uses, and any discrepancies between NLCD and

LLRM categories. Why did you select the LLRM category?

What would you do if your region had a land use that was

not listed in the LLRM template?

• How would it change your results is you use the median,

rather than mean?

• Do you think the defaults for septic and waterfowl are

reasonable? How could you get more accurate values for

these inputs?

• What are the predicted concentrations from the model?

How do they compare to the measured concentrations

(from homework 6.

• Are there inputs or sources that are missing from the

model?