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Global Change Master Directory (GCMD)
TOPAZ: Topographic Parameterization
Entry ID: TOPAZ


Summary
Abstract: TOPAZ (Topographic Parameterization) is an automated digital landscape analysis tool for topographic evaluation, drainage identification, watershed segmentation and subcatchment parameterization. While TOPAZ is designed primarily to assist with topographic evaluation and watershed parameterization in support of hydrologic modeling and analysis, it also has application to a variety of geomorphological, environmental and remote sensing applications.

The overall objective of TOPAZ is to provide a comprehensive evaluation of landscape drainage characteristics while maintaining consistency between all derived data, the initial input data, and the physics underlying energy and water flux at the landscape surface. The analysis is based on the application of the deterministic eight-neighbour (D8) method to simulate flow across a land surface represented by a raster (grid) digital elevation model.

Related URL
Link: PROJECT HOME PAGE
Description: TOPAZ project home page. Copies of TOPAZ are available on request from Jurgen D. Garbrecht, USDA-ARS Grazinglands Research Laboratory, 7207 W. Cheyenne St., El Reno, OK 73036; phone (405) 262-4316, fax (405)262-0133.

ISO Topic Category
ELEVATION
ENVIRONMENT


Access Constraints
The source code of software TOPAZ and manuals are available free of charge upon written request. The request should include:

- your name
- mailing address
- phone with country code
- fax with country code
- e-mail
- we would appreciate a brief description of your intended application of TOPAZ

Send request to:

Dr. Jurgen Garbrecht
USDA-ARS Grazinglands Research Laboratory
7207 West Cheyenne St.
El Reno, Oklahoma 73036
Fax: (405) 262-0133
E-Mail: garbrech@grl.ars.usda.gov


Keywords
GIS
Open Source
Digital Data


Personnel
TYLER B. STEVENS
Role: SERF AUTHOR
Phone: 301-851-8113
Email: Tyler.B.Stevens at nasa.gov
Contact Address:
5700 Rivertech Court
City: Riverdale
Province or State: MD
Postal Code: 20737
Country: USA


JURGEN GARBRECHT
Role: TECHNICAL CONTACT
Phone: 405-262 4316
Fax: 405-262 2733
Email: garbrech at grl.ars.usda.gov
Contact Address:
USDA-ARS
Grazinglands Research Laboratory
7207 W. Cheyenne St.
City: El Reno
Province or State: Oklahoma
Postal Code: 73036
Country: USA


LAWRENCE MARTZ
Role: TECHNICAL CONTACT
Phone: 306-966-5667
Fax: 306-966-5680
Email: lawrence.martz at usask.ca
Contact Address:
Department of Geography
9 Campus Drive
University of Saskatchewan
City: Saskatoon
Province or State: Saskatchewan
Postal Code: S7N 5A5
Country: CANADA


Extended Metadata Properties
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Creation and Review Dates
SERF Creation Date: 2003-11-12
SERF Last Revision Date: 2018-08-22



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