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General Listing |
Title of Listing: | | BLTM |
Category: | | Software/Models |
Subcategory: | | Government, All Listings |
Date: | | |
Document #: | | |
Web Site: | | http://water.usgs.gov/software/bltm.html |
Email: | | h2osoft@usgs.gov |
Abstract: | |
BLTM uses Lagrangian calculations that are unconditionally stable and based upon a reference frame that moves at a velocity equal to the mean channel flow velocity. BLTM results are within the accuracy required by most water-quality studies. The BLTM is easily applied to unsteady flows in networks of one-dimensional channels with fixed geometry and tributary inflows. Reaction kinetics for up to 10 constituents are provided in a user-written decay-coefficient subroutine. Postprocessor plot programs improve the utility of the model. The model routes any number of interacting constituents through a system of one-dimensional channels.
The following programs are included in the BLTM distribution:
- cbltm - branched Lagrangian transport model
- qbltm - bltm with qual2e
- tbltm - bltm with temperature
- bbltm - builds the input file for BLTM
- bqual2e - builds the input file for QBLTM
- mrg - builds a table of data by adding or modifying a column based on data in files old.bc and in, writes file bc
- ctplt - plots concentration vs time and compute the RMS error
- cxplt - plots concentration vs distance
- equltmp - computes the equilibrium temperature from daily extreme temperatures
- solar - computes the solar radiation from empirical equations
Available for download on the WWW.
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Topics
Channels/Hydrology
Additional Topics/Tags/Keywords
Free Download, Lagrangian, Water Quality, Flow
Organization: | | US Geological Survey (USGS), Hydrologic Analysis Software Support Team |
Address: | | 437 National Center
| Phone: | Description | Number |
City: | | Reston | | | |
State/Province/Territory: | | VA | 2. | | |
Zip/Postal Code: | | 20192 | 3. | | |
Country: | | United States | 4. | Fax: | |
Branch Locations: | |
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