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Geophysical Surveys of Bear Lake, Utah-Idaho, September, 2002, OFR 03-150

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GIS Data

ArcView Project Description

This CD-ROM contains an Environmental Systems Research Institute (ESRI) ArcView 3.2 Geographic Information System (GIS) project file: of03-150.apr, stored within the arcview directory. This project file contains the sidescan-sonar mosaic, JPEG images of the seismic data, Digital Elevation Model of the study area, trackline data, grab sample and sound velocity profile locations, and photographs of grab samples and JPGs of the sound velocity profiles.

If the user does not have access to ArcView 3.2 or higher, ESRI's free view, ArcExplorer, may be used. See the ESRI webiste for a detailed description of this product and download instructions.

Note: ESRI supports Microsoft Windows/XP and UNIX systems. Macintosh users will not be able to view the GIS project file, of03-150.apr, as ESRI does not support Macintosh operating systems.

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Loading the Project File:

  • of03-150.apr contains a startup script, Drive Selection. This script will run upon startup and will prompt the user for the directory path to the images directory. This information is needed to establish 'hotlinks'
    Image of fireworks
    found within the project file. This script can also be accessed within the project file. Click on the 'fireworks' button (displayed at right), found on the menu/button bar within of03-150, to rerun the Drive Selection script. This button enables the user to modify the directory path to the images directory at any time.

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Extensions:

  • Within of03-150.apr, vector (trackline) data are 'hotlinked' to JPEG image files of the seismic data, photographs of the grab samples, and images of the sound velocity profiles. Therefore, the JPEG (JFIF) Image Support extension must be loaded in order to view these image files. This extension is loaded by default within the project file.

  • This project file utilizes RASTER image files (TIFF) compressed with LizardTech MrSID Geospatial Encoder 1.3.1 image compression utility. In order to load and view these files the MrSID Image Support extension must be loaded. This extension will be loaded by default within of03-150.apr.

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Views:

The 'Bear Lake'View within of03-150.apr is projected in the following coordinate system: UTM, WGS84 datum, Zone 12, meters. All raster image and grid data are also projected in UTM. All point and vector data are stored in decimal degrees.

NOTE: Hotlinks - The seismic trackline data, sample and sound velocity profile locations are 'hotlinked' to JPEG images of the seismic data, photographs of the sediment samples, and images of the sound velocity profiles, respectively. To view the JPEG images, activate either the trackline, sample or sound velocity profile shapefile by clicking the shapefile name within the View Table of Contents. Click on the lightening bolt lightening bolt image displaying tool available within ArcView 3.2 within the tool menu bar, then click on an individual trackline or sample location within the active theme. A JPEG image of the seismic data collected along the chosen line will appear. The JPEG images are stored in a view window; the user can zoom, pan, and alter the window size. Click on the X in the upper right corner to close the window.




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