NASA Home Page Goddard Space Flight Center Home Page
NASA Logo - Goddard Space Flight Center   + Visit NASA.gov
a directory of Earth science data and services Global Change Master Directory Web site
header 2 bullet Links bullet FAQ bullet Contact Us bullet Site Map
Home Data Sets Data Services Learn about GCMD_legacy's portal collaborations. Add new dataset or dataservice records to GCMD_legacy What's New Participate Calendar About GCMD_legacy
 
Record Search Query: [Keyword='Nutrients']

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

[ Update this Record ]

Summary
Abstract: The SPARROW method uses spatially referenced regressions of contaminant
transport on watershed attributes to support regional water-quality assessment
goals, including descriptions of spatial and temporal patterns in water quality
and identification of the factors and processes that influence those
conditions. The method is designed to reduce the problems of data
interpretation caused by sparse ... View entire text
Related URL
Multimedia Sample
multimedia sample thumbnail image
View full image

Caption Description:  Estimated nitrogen export (kg/km2/yr) for watersheds of the conterminous US.

Service Citation
Originators: Smith, R.A., G.E. Schwarz, and R.B. Alexander
Title: SPARROW Surface Water-Quality Modeling
Provider: USGS
URL: http://water.usgs.gov/nawqa/sparrow/
Service Keywords
DATA ANALYSIS AND VISUALIZATION >STATISTICAL APPLICATIONS Parameter Definition
MODELS >COMPONENT PROCESS MODELS Parameter Definition

Ancillary Keywords
Pollution
Regression
View entire list

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
TYLER B. STEVENS
Role: SERF AUTHOR
Phone: (301) 614-6898
Fax: 301-614-5268
Email: Tyler.B.Stevens at nasa.gov
Contact Address:
NASA Goddard Space Flight Center
Global Change Master Directory
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA
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
Creation and Review Dates
SERF Creation Date:
SERF Last Revision Date: 2006-03-23
Future SERF Review Date: 2002-01-18
USA dot gov - The U.S. Government's Official Web Portal NASA
Webmaster:  Monica Lyles
Responsible NASA Official:  Dr. Stephen Wharton
Last Updated:  October 2016