USGS Home
Contact USGS
Search USGS

   Home    Headlines    Featured Studies    Liaison Committee    Informing Decision Makers    Data    Modeling/Software    Publications    Maps

Spatial Analysis of Instream Nitrogen Loads and Factors Controlling Delivery to Streams in the Southeastern United States using Spatially Referenced Regression on Watershed Attributes (SPARROW) and Regional Classification Frameworks

Article and supplemental material

Technical Announcement

Tables

Model Predictions (4.13 MB) for instream nitrogen load and yield for 8,028 stream reaches and 293 shoreline reaches in the southeast, and the fraction of instream nitrogen load that is delivered to the basin outlet.

Model Input Data

The data assembled to support model calibration are available in a separate report:

Hoos, A.B. and others, 2008, Data to support statistical modeling of instream nutrient load based on watershed attributes, southeastern United States, 2002, U.S. Geological Survey Open-File Report 2008-1163, 50p. Supporting data include watershed and reach level attributes for nutrient sources and transport for 8,028 stream reaches and mean annual nitrogen and phosphorus load, detrended to 2002, at over 750 stream monitoring sites throughout the southeast.

Related Links:

• Amounts and Sources of Nutrients Delivered to Estuaries in the Gulf of Mexico
• Phosphorus SPARROW model for the southeastern U.S. Streams
• SPARROW Fact Sheet
• USGS SPARROW model applications
• Regional and national monitoring and assessments of streams and rivers
• Nutrients in rivers, streams, and aquifers in the United States
• Effects of nutrient enrichment on stream ecosystems
• Gulf of Mexico Alliance
• South Atlantic Alliance

For additional information on the study, please contact:

Anne Hoos
U.S. Geological Survey
640 Grassmere Park, Suite 100
Nashville, TN 37211
abhoos@usgs.gov

Victor Roland
U.S. Geological Survey
640 Grassmere Park, Suite 100
Nashville, TN 37211
vroland@usgs.gov

Accessibility FOIA Privacy Policies and Notices

U.S. Department of the Interior | U.S. Geological Survey
URL: http://water.usgs.gov/nawqa/pubs/nitrogen_loads/index.html
Page Contact Information: gs-w_nawqa_whq@usgs.gov
Page Last Modified: Monday, 11-Mar-2019 12:37:32 EDT