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  1. SPARROW cover crop model coefficients, summary statistics, inputs and simulated total phosphorus loads in streams of the Midwest United States, 2012 Base Year

SPARROW cover crop model coefficients, summary statistics, inputs and simulated total phosphorus loads in streams of the Midwest United States, 2012 Base Year

Dates

Publication Date
Start Date
1999-10-01
End Date
2014-09-30

Citation

Saad, D.A., Robertson, D.M., Roland II, V.L., Garcia, A.M., Ator, S.W., and Schwarz, G.E., 2021, SPARROW cover crop model coefficients, summary statistics, inputs and simulated total phosphorus loads in streams of the Midwest United States, 2012 Base Year: U.S. Geological Survey data release, https://doi.org/10.5066/P9CLA42C.

Summary

The U.S. Geological Survey’s (USGS) SPAtially Referenced Regression On Watershed attributes (SPARROW) model was used to aid in the interpretation of monitoring data and simulate nutrient loads in streams across the Midwest Region of the United States. SPARROW is a hybrid empirical/process-based mass balance model that can be used to estimate the major sources and environmental factors that affect the long-term supply, transport, and fate of contaminants in streams. The spatially explicit model structure is defined by a river reach network coupled with contributing catchments. The model is calibrated by statistically relating watershed sources and transport-related properties to monitoring-based water-quality load estimates. This USGS [...]

Contacts

Point of Contact :
David A Saad
Originator :
David A Saad, Dale M Robertson, Victor L Roland, Ana Maria Garcia, Scott W Ator, Gregory E Schwarz
Metadata Contact :
David A Saad
Publisher :
U.S. Geological Survey
USGS Mission Area :
Water Resources
SDC Data Owner :
Lower Mississippi-Gulf Water Science Center
Distributor :
U.S. Geological Survey - ScienceBase

Attached Files

Click on title to download individual files attached to this item.

mw_sparrow_TPcovcrop_model_metadata.xml
Original FGDC Metadata
View 		89.68 KB application/fgdc+xml
mw_sparrow_TPcovcrop_model_control.sas
“SPARROW control file for modified Midwest 2012 TP model” 		28.37 KB application/x-sas
mw_sparrow_TPcovcrop_model_output.txt
“Output from modified Midwest 2012 TP model” 		424.91 MB text/plain
mw_sparrow_TPcovcrop_summary_model_rslts.txt
“Summary of results for modified Midwest 2012 TP model” 		1.69 KB text/plain
mw_sparrow_TPcovcrop_model_input.txt
“Input for modified Midwest 2012 TP model” 		352.29 MB text/plain

Purpose

This USGS data release contains all of the input and output files needed to reproduce the model coefficients and summary statistics described in mw_sparrow_TPcovcrop_summary_model_rslts.txt and model results described in Roland and others (2022, doi:10.2489/jswc.2022.00162). Also included in this data release is the control file (mw_sparrow_TPcovcrop_model_control.sas) used to run this SPARROW model and the model results summary file (mw_sparrow_TPcovcrop_summary_model_rslts.txt) that describes the calibrated model coefficients and model summary statistics. Model input and output text files provided here can be linked (via the comid attribute) to the shapefiles available at https://doi.org/10.5066/P93QMXC9.

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Communities

  • USGS Data Release Products
  • USGS Lower Mississippi-Gulf Water Science Center

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Provenance

Data source
Input directly

Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9CLA42C

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