RSPARROW Modeling Tool used to Estimate Total Nitrogen Sources to Streams and Evaluate Source Reduction Management Scenarios in the Grande Basin, Brazil

Release Date

2020-01-01

Start Date

2001-01-01

End Date

2017-06-30

Publication Date

2023-09-15

Miller, M.P., 2020, RSPARROW Modeling Tool used to Estimate Total Nitrogen Sources to Streams and Evaluate Source Reduction Management Scenarios in the Grande Basin, Brazil: U.S. Geological Survey data release, https://doi.org/10.5066/P9FZV0Z0.

Type: Related Primary Publication Type: browseImage

The objective of the models was to estimate long-term mean annual total nitrogen in streams and rivers of the Grande River Basin. The background for the development of the model input and output files included in this data release is documented in the journal article (https://doi.org/10.3390/w12102911)In this study, the SPARROW total nitrogen model is used to (1) quantify spatial variability in mean annual TN loads in all streams across the GRB sub-basins; (2) quantify the major natural and human sources of nitrogen in the GRB, including the contaminant mass loading contributions from major land uses (urban, pasture, sugar cane) and wastewater treatment facilities in the river basin; and (3) illustrate an application of the model to evaluate the potential stream water-quality effects of hypothetical nutrient-reduction management actions in urban areas of the watersheds. .

• Model Data Management Function (MDMF)