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Record Search Query: ServiceParameters>MODELS>HYDROLOGIC AND TERRESTRIAL WATER CYCLE MODELS

One-Dimensional Transport With Inflow and Storage (OTIS): A Solute Transport Model For Streams and Rivers
Entry ID: USGS_OTIS
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Summary
Abstract: One-Dimensional Transport With Inflow and Storage (OTIS) is a mathematical
simulation model used to characterize the fate and transport of water-borne
solutes in streams and rivers. The governing equation underlying the model is
the advection-dispersion equation with additional terms to account for
transient storage, lateral inflow, first-order decay and sorption. This
equation and the associated equations describing transient storage and sorption
are solved using a Crank-Nicolson finite difference solution.

OTIS may be used in conjunction with data from field-scale tracer experiments
to quantify the hydrologic parameters affecting solute transport. This
application typically involves a trial-and-error approach wherein parameter
estimates are adjusted to obtain an acceptable match between simulated and
measured tracer concentrations. Additional applications include analyses of
nonconservative solutes that are subject to sorption processes and/or
first-order decay.

A modified version of OTIS, OTIS-P, couples the solution of the governing
equation with a nonlinear regression package. OTIS-P determines an 'optimal'
set of parameter estimates that minimize the squared differences between the
simulated and measured concentrations, thereby automating the parameter
estimation process.

The OTIS solute transport model and related materials (data and documentation)
are made available by the U.S. Geological Survey (USGS) to be used in the
public interest and the advancement of science. You may, without any fee or
cost, use, copy, modify, or distribute this software, and any derivative works
thereof, and its supporting documentation, subject to the USGS software User's
Rights Notice.

Funding for software development was provided by the USGS Toxic Substances
Hydrology Program and the USGS Office of Water Quality.

[Summary provided by the USGS.]

Related URL
Link: GET SERVICE > GET SOFTWARE PACKAGE
Description: Access the One-Dimensional Transport With Inflow and Storage (OTIS) software after completing the online form.

Link: VIEW RELATED INFORMATION
Description: Additional documentation on the One-Dimensional Transport With Inflow and Storage (OTIS) software.
Service Citation
Originators: U.S. Geological Survey
Title: One-Dimensional Transport With Inflow and Storage (OTIS): A Solute Transport Model For Streams and Rivers
Provider: U.S. Geological Survey
URL: http://co.water.usgs.gov/otis/
ISO Topic Category
BIOTA
GEOSCIENTIFIC INFORMATION
INLAND WATERS
Use Constraints
Before downloading software, users must complete a software distribution form.
Service Provider
Office of Surface Water, Water Resource Division, USGS, U.S. Department of the Interior

Service Provider Personnel
Name: WATER WEBSERVER TEAM - USGS
Phone: 703-648-4000;1-800-426-9000
Email: h2oteam at usgs.gov
Contact Address:
USGS National Center
Water Resources Division
12201 Sunrise Valley Drive
City: Reston
Province or State: VA
Postal Code: 20192-0002
Country: USA
Distribution Media
Distribution_Media: Online
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

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
Creation and Review Dates
SERF Creation Date: 2005-12-09
SERF Last Revision Date: 2011-12-13
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