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='Chemical Modeling']

Chemical Modeling of Acid Waters
Entry ID: USGS_WATEQ4F

[ Get Service ]
[ Update this Record ]

Summary
Abstract: WATEQ4F is a chemical speciation code for natural waters. It uses field measurements of temperature, pH, Eh, dissolved oxygen and alkalinity, and the chemical analysis of a water sample as input and calculates the distribution of aqueous species, ion activities, and mineral saturation indices that indicate the tendency of a water to dissolve or precipitate a set of minerals (see Drever, 1988; ... View entire text
Related URL
Description: Download WATEQ4F software.

Description: View the WATEQ4F manual.
Service Citation
Originators: James Ball, Kirk Nordstrom
Title: Chemical Modeling of Acid Waters
Provider: U.S. Geological Survey
URL: http://wwwbrr.cr.usgs.gov/projects/GWC_chemtherm/software.htm
Service Keywords
MODELS >HYDROLOGIC AND TERRESTRIAL WATER CYCLE MODELS Parameter Definition

Use Constraints See the USGS software use policy: http://water.usgs.gov/software/help/notice/
Ancillary Keywords
Modeling
Water Model
View entire list

Service Provider
DOI/USGS/WRD/OSW > Office of Surface Water, Water Resource Division, USGS, U.S. Department of the Interior Supplemental Info
Service Organization URL: http://water.usgs.gov/osw/

Service Provider Personnel
Name: WATER RESOURCES U.S. GEOLOGICAL SURVEY
Email: h2osoft at usgs.gov
Contact Address:
U.S.G.S.
Hydrologic Analysis Software Support Program
437 National Center
City: Reston
Province or State: VA
Postal Code: 20192
Country: USA
Distribution Media
Distribution_Media: Online
Distribution_Size: 0.3 MB
Fees: No fees
Personnel
WATER RESOURCES U.S. GEOLOGICAL SURVEY
Role: TECHNICAL CONTACT
Email: h2osoft at usgs.gov
Contact Address:
U.S.G.S.
Hydrologic Analysis Software Support Program
437 National Center
City: Reston
Province or State: VA
Postal Code: 20192
Country: USA
View entire list
Creation and Review Dates
SERF Creation Date: 2008-05-28
SERF Last Revision Date: 2008-05-29
USA dot gov - The U.S. Government's Official Web Portal NASA
Webmaster:  Monica Holland
Responsible NASA Official:  Lola Olsen
Last Updated:  April 2014