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2012 Flux Estimate Home > Streamflow and Nutrient Flux for Selected Mississippi River Subbasins with Varied Sizes, Hydrology, Land Use, and Geographic Location

Streamflow and Nutrient Flux of the Mississippi-Atchafalaya River Basin and Subbasins Through Water Year 2012

Streamflow and Nutrient Flux for Selected Mississippi River Subbasins with Varied Sizes, Hydrology, Land Use, and Geographic Location

The following list provides access to information on streamflow and nutrient flux for 22 subbasins within the Mississippi-Atchafalaya River Basin (MARB) for the period of record through 2012. 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. These subbasins vary significantly in characteristics and are representative of other subbasins within the MARB. Data collection at the stations for a few of these subbasins has been discontinued; however, information for the discontinued stations is provided by Aulenbach and others (2007) where noted. Data from these stations and others are used in modeling relations between watershed characteristics and nutrient yields and estimating nutrient yields in unmeasured subbasins, for example the SPARROW Model (Alexander and others, 2000).

Streamflow and Nutrient Flux

Graphics of Streamflow and Nutrient Flux

Graphs of the annual flux of dissolved nitrite plus nitrate, total nitrogen, total phosphorus, dissolved orthophosphate, and dissolved silica, along with concurrent annual streamflow are available for all of the above basins.

Monitoring Network, Methods, and Data Sources

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

References

Alexander, R.B., Smith, R.A., and Schwarz, G.E., 2000, Effect of stream channel size on the delivery of nitrogen to the Gulf of Mexico: Nature, v. 403, p. 758-761.

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

2012 Flux Estimate Home > Streamflow and Nutrient Flux for Selected Mississippi River Subbasins with Varied Sizes, Hydrology, Land Use, and Geographic Location

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