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:

The Generic Mapping Tools (GMT)
Entry ID: Gen-Map-Tool-GMT-01
[ Get Service ]
[ Update this Record ]


Summary
Abstract: GMT is a free, open source collection of ~60 UNIX tools that allow users to manipulate (x,y) and (x,y,z) data sets (including filtering, trend fitting, gridding, projecting, etc.) and produce Encapsulated PostScript File(EPS) illustrations ranging from simple x-y plots through contour maps to artificially illuminated surfaces and 3-D perspective views in black and white, gray tone, hachure patterns, and 24-bit color. GMT supports 25 common map projections plus linear, log, and power scaling, and comes with support data such as coastlines, rivers, and political boundaries.

GMT (Generic Mapping Tools) software developed by scientists at University of Hawaii and NOAA. Mercator, equidistant cylindrical, polar stereographic, lambert azimuthal equal-area, azimuthal equidistant, and orthographic projections can be made. Political boundaries, rivers, bathymetry, and topography can be displayed on maps along with tectonic features such as faults and ridges. Specific Ocean Drilling Project (ODP) and Deep Sea Drilling Project (DSDP) sites can also be displayed. Once you enter your desired parameters, a full-color (or b/w if you want) map will be presented as a .gif image or for download in Postscript or Adobe Illustrator format. Step-by-step instructions are provided.

(Summary adapted from the GMT home page.)

Related URL
Link: VIEW PROJECT HOME PAGE
Description: All maps are created by Generic Mapping Tools.

Link: GET SERVICE > GET SOFTWARE PACKAGE
Description: Get the Generic Mapping Tools (GMT) software.
Service Citation
Originators: Paul Wessel
Title: GMT - The Generic Mapping Tools
Release_Date: 2003-05-01
Provider: SOEST, University of Hawaii
Edition: Version 3.4.3
URL: http://gmt.soest.hawaii.edu/
ISO Topic Category
BOUNDARIES
ELEVATION
GEOSCIENTIFIC INFORMATION
OCEANS
Quality
Known bugs: Plotting maps with topography and/or bathymetry
contours with a Lambert Azimuthal projection results in a map
where only the area specified in the input form gets the
contours. http://gmt.soest.hawaii.edu/gmt/gmt_bugs.html

Performance of OMC depends on internal processing time and ratio
in a given situation. Internal processing (map generation,
postscript conversion) takes 15 to 30 seconds on a SparcStation
10. Plotting magnetic lineations and fracture zones may cost 20
seconds each. There might still be some chances for optimizing
the cgi-script, but I guess they would be hard to notice. The
time for transmission of the map to your browser cannot be
generalized. The server log tells us, load is smallest around
7.00 MET
Use Constraints
The GMT package is available via anonymous ftp from several
servers; they all contain the same files as the main server in
Hawaii. Because of file sizes you are strongly encouraged to use
the server closest to you. We distribute a Bourne shell script
(install_gmt) that automatically will ftp the required archives
from the ftp site you choose. For users with a slow
Internet-connection and users who desire large amounts of
supplemental data sets to use with GMT: See the GMT Companion
CD-ROM product distributed by Geoware.

Here this data set is only used to illustrate the relief of the
area mapped: the contours are not annotated. The deviation of
the contours from the "real world" might reach tens to hundreds
of meters. It is not intended to give serious morphological
information (e.g. for navigational purposes).
Service Provider
Generic Mapping Tools, School of Ocean and Earth Science and Technology, University of Hawaii

Service Provider Personnel
Name: PAUL WESSEL
Phone: (808) 956-4778
Fax: (808) 956-5154
Email: pwessel at hawaii.edu
Contact Address:
School of Ocean and Earth Science and Technology
University of Hawai'i at Manoa
1680 East-West Road, POST 802
City: Honolulu
Province or State: HI
Postal Code: 96822
Country: USA
Distribution Media
Distribution_Media: Electronic (Internet)
Personnel
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

PAUL WESSEL
Role: TECHNICAL CONTACT
Phone: (808) 956-4778
Fax: (808) 956-5154
Email: pwessel at hawaii.edu
Contact Address:
School of Ocean and Earth Science and Technology
University of Hawai'i at Manoa
1680 East-West Road, POST 802
City: Honolulu
Province or State: HI
Postal Code: 96822
Country: USA

WALTER H.F. SMITH
Role: TECHNICAL CONTACT
Phone: 301-713-2857 x126
Fax: 301-713-4598
Email: walter at amos.grdl.noaa.gov
Contact Address:
NOAA National Oceanographic Data Center
Laboratory for Satellite Altimetry
E/OC2, SSMC3, Room 3620
1315 East West Highway
City: SILVER SPRING
Province or State: MD
Postal Code: 20910
Country: USA
Publications/References
Wessel, P., and W. H. F. Smith, 1995 The Generic Mapping Tools
(GMT) version 3.0 Technical Reference & Cookbook,
SOEST/NOAA.

Wessel, P., and W. H. F. Smith, 1995 New Version of the Generic
Mapping Tools Released, EOS Trans. AGU, 76, p. 329.

Wessel, P., and W. H. F. Smith, 1995 New Version of the Generic
Mapping Tools Released,Copyright 1995 by the American Geophysical Union.

E.Tittel, M.Gaither, S.Hassinger & M.Erwin (1995):
Foundations of World Wide Web Programming with HTML and CGI. -
IDG Books Worldwide Inc., Foster City CA, USA: 648 pp.

R.L.Schwarz (1995): Einf?hrung in Perl. - O'Reilly/Internationl
Thomson Verlag, Bonn: 258 pp.
Creation and Review Dates
SERF Creation Date:
SERF Last Revision Date: 2008-08-07
[ Update this Record ]
USA dot gov - The U.S. Government's Official Web Portal NASA
Webmaster:  Monica Holland
Responsible NASA Official:  Lola Olsen
Last Updated:  November 2014