This Open-File Report contains an ArcExplorer 2.0 Project containing TIFF images of multibeam bathymetry and acoustic backscatter data from the 2002 survey of the Head of De Soto Canyon Region, Northeastern Gulf of Mexico.

ArcExplorer is a freeware, GIS software package developed by ESRI. This project allows the user to overlay, zoom, pan, and query the Head of De Soto Canyon multibeam and other data. Other spatial data in UTM coordinates can be added to this project.

This ArcExplorer project will only run an a PC running Windows 98/2000/NT.

If the user already has ArcExplorer 2.0 installed on the computer follow the instructions below.

If the user needs to install ArcExplorer 2.0, download the software directly from ESRI-software.

1. Download the dsproj.tgz file (16Mb compressed, 112Mb uncompressed).

2. Dsproj.tgz is a bundled and compressed folder containing all the files needed for the ArcExplorer project. Dsproj.tgz needs to be uncompressed and unbundled using WinZip or a similar program before opening the project in ArcExplorer.

3. Double click on the dsproj.tgz file and WinZip will uncompress the file resulting in a new file called dsproj.tar.

4. Double click on the dsproj.tar file and WinZip will unbundle the file into a directory called dsproj.

5. Double click on the dsproj.aep file within the dsproj folder to start the ArcExplorer project

Disclaimer: Downloading files from the Internet can sometimes be problematic. Different web browsers and operating systems act differently. The instructions above may vary from system to system or may not work at all.

One known problem is sometimes Netscape Navigator automatically changes the .tgz suffix to .tar during the download. If this happens change the .tar suffix back to .tgz after the download. Double click on the wgomproj.tgz icon and Winzip should start up.

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Contents of the ArcExplorer Project

1. con10 - 10-meter isobaths generated from the multibeam bathymetry data
2. coast - coastline
3. gomcon - 100-meter isobaths generated from National Ocean Service Hydrographic Survey Data (Geophysical Data System for Hydrographic Survey Data, Volumes 1 and 2, Version 4.0, CD-ROM).
4. nthshd.tif - shaded relief bathymetry TIFF image of the northeast region
5. nthmos.tif - acoustic backscatter TIFF image of the northeast region
6. censhd.tif - shaded relief bathymetry TIFF image of the central region.
7. cenmos.tif - acoustic backscatter TIFF image of the central region
8. sthshd.tif - shaded relief bathymetry TIFF image of the southwest region.
9. sthmos.tif - acoustic backscatter TIFF image of the southwest region

Projection Information
Projection: UTM
Zone: 16
Datum: WGS84
Units: Meters
Zunits: NO [backscatter]; Meters [bathymetry]

FGDC Compliant Metadata for ArcInfo GRID format:

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