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2008 Flux Estimate Home > Streamflow and Net Nutrient Flux for Five Large Subbasins Comprising the Mississippi-Atchafalaya River Basin

Streamflow and Nutrient Flux of the Mississippi-Atchafalaya River Basin and Subbasins Through Water Year 2008

Streamflow and Net Nutrient Flux for Five Large Subbasins Comprising the Mississippi-Atchafalaya River Basin

The following list provide access to information on streamflow and annual net nutrient flux for five large subbasins comprising the Mississippi-Atchafalaya River Basin. The information is provided for the period 1979–2008 with confidence intervals. The net subbasin nutrient fluxes also are summarized for five 5-year periods and for the 25-year period including water years 1981 through 2005. Summarizing the data on 5-year periods improves the interpretability of the results by removing some of the year-to-year variability in stream runoff and canceling out some of the large errors present in the annual fluxes for some subbasins. Much of the variability in annual fluxes is typically controlled by the amount of annual runoff. This information extends the information provided by Aulenbach and others (2007) for the period of record through water year 2005 and uses the same approach and methodologies. A discussion of the net nutrient flux for the five large subbasins through water year 2005 is contained therein.

Streamflow and Net Nutrient Flux

• Lower Mississippi (Excel^© Spreadsheet) - The version posted online on 6/3/09 was calculated from incorrect estimated fluxes. Corrected file posted online on 6/10/09. The other subbasins were unaffected.
• Upper Mississippi (Excel^© Spreadsheet)
• Ohio/Tennessee (Excel^© Spreadsheet)
• Missouri (Excel^© Spreadsheet)
• Arkansas/Red (Excel^© Spreadsheet)

Methods

Specific information on the data and methodology used is provided by the following report sections from Aulenbach and others (2007).

• Methods for Determining Net Nutrient Flux for Five Large Subbasins Comprising the Mississippi-Atchafalaya River Basin
• Methods Used to Estimate Nutrient Fluxes
• Sources and Preparation of Data Used for Nutrient Flux

Reference

Aulenbach, B.T., Buxton, H.T., Battaglin, W.T., and Coupe R.H., 2007, Streamflow and nutrient fluxes of the Mississippi-Atchafalaya River Basin and subbasins for the period of record through 2005: U.S. Geological Survey Open-File Report 2007-1080

For users that do not have Excel^© installed on their computer system, a free viewer is available for Windows^© systems (Excel Viewer 2003) that allows users to open, view, and print Excel^© spreadsheets. Third party viewers are also available for other operating systems (Mac OSX, UNIX, ...). The use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Government or the U.S. Geological Survey.

2008 Flux Estimate Home > Streamflow and Net Nutrient Flux for Five Large Subbasins Comprising the Mississippi-Atchafalaya River Basin