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COAST >COAST Watershed Contribution Mapper

1. Select Watershed or State:


        -OR-
        

2. Select SPARROW Model:

Nutrient Type:
Total Nitrogen
Total Phosphorus
Total Sediment
     -AND-
Yield Type:
Local Yield
Delivered Yield

3. Select Source Type:


4. Select Symbology Color:

Start color:  
End color:    

After the new map layer shows up, click "Layers" tab to see the legend of this map layer.
The COAST Watershed Contribution Mapper

The COAST Watershed Contribution Mapper is intended to support the "Prioritize" areas component of COAST. This mapper provides CBP partners with tools to select areas to enhance restoration management actions. Managers can use this information in conjunction with additional information on local water-quality problems to select areas to enhance actions that will restore water quality in the Bay and local streams.


The Nutrient Yield Mapper (NYM)

The NYM tool is used to map the spatial distribution of nutrient and sediment yields ("loading rates") (kg/ha/yr) in your watershed. For instance you may want to show watersheds with a high Total Phosphorous nutrient yield relative to other waterhseds in your Tributary Strategy Basin. This tool can help you identify geographical areas to start implementing best management practices. Start by going to the Nutrient Mapper tab. Pick a State or Watershed from the drop down lists and click the "select and zoom" button to select your geography. Then define what type of nutrient and source you want to see in your map window. This tool uses the USGS late 1990's SPARROW version 3.0 model results.

More Details on how to use the NYM tool... Open Help Window



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