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The Gulf of the Farallones: Sidescan-Sonar Imagery, USGS Open-File Report 2004-1082
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About this Disk

Directories and Files

Files

  • index.htm - This file the starting point for this report.
  • readme.txt - ASCII text file containing a description of this report.

Directories:

  • arcgis - ESRI ArcGIS ArcMap 8.3 map file, ofr2004_1082.mxd and an ArcView 3.3 project file, ofr2004_1082.apr.


    • coastal_relief - sun-illuminated TIFF image of the National Geophysical Data Center (NGDC) Coastal Relief Model
    • metadata - metadata for all the files utilized within the MXD and APR files
    • mosaic- sidescan-sonar mosaic files:
           -farallones.tif/farallones.tfw -
            full resolution TIFF image (4 meter/pixel)
           -farallones.sid/farallones.sdw -
            LizardTech's MrSID Version 1.4 image compression software image file
    • shape - shapefiles called by MXD and APR files, in subdirectories:
  • html - HTML pages of this report and subdirectories: with the following subdirectories:
    • images - image files for HTML pages
    • PDF - PDF versions of figures
  • ivs- contains a 3-D scene file viewable with Fledermaus or iView3D and a 'fly-through' mpeg movie file

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System and Software Requirements

Operating Systems

This report can be accessed using the Microsoft Windows, Macintosh and UNIX. The ESRI ArcMap map file, ofr2004_1082.mxd will run only on Microsoft Windows systems, whereas the ArcView project file, ofr2004_1082.apr, will run on both Microsoft Windows systems and a UNIX platform.

ArcMap and Arcview

The arcgis directory contains two Environmental Systems Research Institute (ESRI) files: an ArcMap 8.3 Geographic Information Systems (GIS) map file, ofr2004_1082.mxd and an ArcView 3.3 GIS project file, ofr2004_1082.apr. The user must have a copy of ESRI ArcMap 8.3 and/or ArcView 3.3 in order to view these documents. If the viewer does not have access to the aforementioned software, individual data files can be viewed with a free viewer such as ArcExplorer, or other viewer capable of reading georeferenced images and shapefiles. All associated GIS files are also contained within the ArcGIS directory. Visit the ESRI Website (http://www.esri.com) for information concerning ArcExplorer or other software.

3D Views

Three-dimensional image of sidescan-sonar and coastal relief data
Figure 7. Three-dimensional view of sidescan-sonar and coastal relief data collected within the Gulf of the Farallones. Elevation range: -3800 (dark blue) - +1450 (light brown) (PDF version, 1.3 mb).
Interactive Visualization Systems (IVS) Fledermaus software package was used to view the sidescan-sonar and coastal relief data in three dimensions. The Fledermaus scene file was generated and is included in this report. This file can be viewed using Fledermaus software or by downloading the IVS free 3-D viewer, iView3D.

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Disclaimer and Accessibility

Disclaimer

This CD-ROM publication was prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Any views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Although all data published on this CD-ROM have been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials.

Accessibility:

Section 508 and Accessibility at the USGS

The USGS is committed to and is making every possible effort to ensure that all electronic and information technology developed, procured, maintained, or used by the USGS is accessible to people with disabilities, including both employees and the customers we serve. If you cannot fully access the information on this DVD-ROM, please e-mail the contact person or group named in the contact information provided on this DVD-ROM, and they will help you. This may include providing the information to you in an alternate format.

For further information and to learn more about the regulations governing the accessibility of Federal electronic information products visit the Section 508 web pages listed below:

Section 508 home page - http://www.section508.gov/
Access Board - http://www.access-board.gov/508.htm
Web Accessibility Initiative (WAI) - http://www.w3.org/WAI/

To view files in PDF format, download free copy of Adobe Reader http://www.adobe.com/products/acrobat/alternate.html.

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