GeoSpatial Data Systems

 

 

Down-loadable geospatial is located below.

PLEASE READ before downloading data
(data links at page bottom)

General Information

New data will be added from time-to-time so check back from time-to-time.    

Full documentation is provided as metadata, please download.

Most of the data on this page were produced by Office of Geothermal Technologies, U.S. Department of Energy,  sponsored geothermal research projects.

Some files are zipped. Use PKUNZIP or WinZip to extract data.

How to use the data. If you do not have ArcView or ArcINFO, we recommend you download the free ArcExplorer data viewer by ESRI.  With this tool, you
can view ShapeFiles and ArcINFO Coverages, and create your own maps.

If you have suggestions or data to contribute contact the webmaster listed below.

Vector Data Information

Vector data created by EGI was done so with Arc/INFO.  Vector data may be available in either Arc/INFO Coverage format or ArcView ShapeFile format (or both).  Either of these formats can be used in ArcView.

DLG data were derived from U.S. Geological Survey DLGs. EGI Geomatics did not digitize or create the DLG data. The data are provided for background information only.  The accuracy of the DLG data has not been verified.  Documentation for the DLG data can be found at the DLG Web site.

Arc/INFO export files were created on Wintel machines using Arc/INFO for Windows NT.  If you plan on importing these data on a UNIX machine, you will probably need to run DOS2UNIX on them, or a similar newline repair tool.

Raster Data Information

Images may be available in several different formats: ERDAS Imagine (.img), Arc/INFO GRID, Georeferenced TIFF, and Georeferenced JPEG.

All of these formats can be used in ArcView. 

Georeferenced TIFF and JPEG files are zipped with their World Files (*.tfw and *.jgw), which MUST be kept with the image.  If the World File becomes separated from the image, then ArcView will not display the image correctly. 

A World File is a text file that contains real-world coordinate information about the projection of the image.  It is essential for proper display of the image in ArcView.

Data Links:

UHOC Project

Dixie Valley, Nevada
Fish Lake Valley,Nevada
Cove Fort, Utah
The Geysers, California
Awibengkok, Indonesia
Roosevelt Hot Springs, Utah

More Data and Geomatics Links

Southern Methodist University Geothermal Laboratory