Model:SPARROW

Contact

Name	Richard Alexander
Type of contact	Model developer
Institute / Organization	USGS, NAWQA Hydrologic Systems Team
Postal address 1	12201 Sunrise Valley Drive, MS 413
Postal address 2
Town / City	Reston
Postal code	20192
State	Virginia
Country	USA"USA" is not in the list (Afghanistan, Albania, Algeria, Andorra, Angola, Antigua and Barbuda, Argentina, Armenia, Australia, Austria, ...) of allowed values for the "Country" property.
Email address	ralex@usgs.gov
Phone	703-648-6869
Fax

Name	Steve Preston
Type of contact	Model developer
Institute / Organization
Postal address 1
Postal address 2
Town / City
Postal code
State
Country	USA"USA" is not in the list (Afghanistan, Albania, Algeria, Andorra, Angola, Antigua and Barbuda, Argentina, Armenia, Australia, Austria, ...) of allowed values for the "Additional country" property.
Email address	spreston@usgs.gov
Phone
Fax

Name	Gregory Schwarz
Type of contact
Institute / Organization
Postal address 1
Postal address 2
Town / City
Postal code
State
Country	USA"USA" is not in the list (Afghanistan, Albania, Algeria, Andorra, Angola, Antigua and Barbuda, Argentina, Armenia, Australia, Austria, ...) of allowed values for the "Additional country" property.
Email address	gschwarz@usgs.gov
Phone
Fax

Name	Richard Smith
Type of contact
Institute / Organization
Postal address 1
Postal address 2
Town / City
Postal code
State
Country	USA"USA" is not in the list (Afghanistan, Albania, Algeria, Andorra, Angola, Antigua and Barbuda, Argentina, Armenia, Australia, Austria, ...) of allowed values for the "Additional country" property.
Email address	rsmith1@usgs.gov
Phone
Fax

Edit Model information

SPARROW

Metadata

Summary Also known as Model type Single Model part of larger framework Note on status model Date note status model Technical specs Supported platforms Windows Other platform Programming language Other program language SAS Macro Language, SAS IML Code optimized Single Processor Multiple processors implemented Nr of distributed processors Nr of shared processors Start year development 1992 Does model development still take place? Yes If above answer is no, provide end year model development Code development status When did you indicate the 'code development status'? Model availability As code Source code availability (Or provide future intension) Through web repository Source web address http://water.usgs.gov/nawqa/sparrow/ Source csdms web address Program license type Other Program license type other NOT SURE Memory requirements -- Typical run time -- In/Output Describe input parameters SPARROW modeling requires the integration of many types of geospatial data for use as explanatory variables which are considered as either constituent sources or delivery factors. Sources might include certain land types such as urban area, or known contaminant sources such as sewage treatment plants. Delivery terms can include any basin characteristic that may be associated with natural attenuation. For example, denitrification is often associated with certain soil characteristics and the spatial pattern of those soil characteristics is often related to that of constituent loads. In some cases delivery terms might also be associated with enhanced delivery. For example, high basin slope might cause more rapid flows which could increase the delivery of constituents. Delivery is also influenced by the water time of travel in streams, which can be estimated from published USGS time-of-travel studies (e.g., Reed and Stuckey, 2001). Input format ASCII, Binary Other input format Describe output parameters SPARROW is designed to describe the spatial patterns in water quality and the factors that affect it. SPARROW models are developed using mass balance constraints to quantify the relation between stream constituent load (the mass of the constituent being transported by the stream) and the sources and losses of mass in watersheds. Thus the models are inherently designed to predict load (mass per time) for all stream reaches in the modeling region. However, the predictions of stream load can be modified to provide a variety of water-quality metrics that can support various types of assessments. The SPARROW prediction metrics include constituent yields, concentrations, and source contributions to stream loads: Constituent yields Constituent concentrations Source contributions to stream loads Output format Binary Other output format Pre-processing software needed? No Describe pre-processing software -- Post-processing software needed? No Describe post-processing software -- Visualization software needed? No If above answer is yes Other visualization software -- Process Describe processes represented by the model -- Describe key physical parameters and equations -- Describe length scale and resolution constraints -- Describe time scale and resolution constraints -- Describe any numerical limitations and issues -- Testing Describe available calibration data sets -- Upload calibration data sets if available: Describe available test data sets -- Upload test data sets if available: Describe ideal data for testing -- Other Do you have current or future plans for collaborating with other researchers? -- Is there a manual available? Yes Upload manual if available: Model website if any http://water.usgs.gov/nawqa/sparrow/ Model forum / discussion board -- Comments This form is filled out by Albert Kettner, based on the SPARROW website Introduction History Papers Issues Help Input Files Output Files Download Source