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SPAtially Referenced Regressions On Watershed Attributes (SPARROW) Modeling of Surface-Water Quality
Entry ID: 01-usgs_sparrow-01


Summary
Abstract: SPARROW (SPAtially Referenced Regressions On Watershed attributes) models are used to estimate long-term average values of water characteristics, such as the amount of a contaminant that is delivered downstream, on the basis of existing monitoring data, location and strength of contaminant sources, and characteristics of the landscape.

Modeling results can help managers determine how to reduce loads of contaminants and design protection strategies; design strategies to meet regulatory requirements; predict changes in water quality that might result from management actions; and identify gaps and priorities in monitoring.
Related URL
Description: Download the SPARROW software.

Description: SPARROW project home page.
Service Citation
Edition: 2.9
Service Keywords
DATA ANALYSIS AND VISUALIZATION >STATISTICAL APPLICATIONS Parameter Definition
MODELS >COMPONENT PROCESS MODELS Parameter Definition

Use Constraints SPARROW runs with SAS version 8.0 (or higher), supported on Windows 95 or Windows NT Version 4.0 (or higher). The SAS Geographic Information System (SAS/GIS) software component is optional for producing maps of model output. The minimum hardware configuration is Intel or Intel-compatible Pentium class processor with 64 megabytes of memory, and XGA or SVGA monitors with minimum screen resolution of 800x600. The work directory used by the SAS system must be of sufficient capacity to hold files as large as several hundred megabytes.
Service Provider
DOI/USGS/WRD/NAWQA > National Water Quality Assessment Program, Water Resources Discipline, U.S. Geological Survey, U.S. Department of the Interior Supplemental Info
Service Organization URL: http://water.usgs.gov/nawqa/

Service Provider Personnel
Name: RICHARD B. ALEXANDER
Phone: 703-648-6869
Fax: (703) 648-6693
Email: ralex at usgs.gov
Contact Address:
USGS National Center
12201 Sunrise Valley Drive
City: Reston
Province or State: VA
Postal Code: 20192-0002
Country: USA
Personnel
Role: TECHNICAL CONTACT
Phone: 302-732-2506 x230
Email: spreston at usgs.gov
Publications/References
Smith, R.A., G.E. Schwarz, and R.B. Alexander, Regional Interpretation of
Water-Quality Monitoring Data, 1997, Water Resources Research, v. 33, no. 12,
pp. 2781-2798

Other references are available at the end of the .pdf version of the journal
manuscript: http://water.usgs.gov/nawqa/sparrow/wrr97/97WR02171.pdf
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Creation and Review Dates


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