This Open-File Report contains an ArcExplorer 2.0 Project containing TIFF images of the multibeam bathymetry and acoustic backscatter data from the USGS 2001 West Florida Shelf survey

ArcExplorer is a freeware, GIS software package developed by ESRI. This project allows the user to overlay, zoom, pan, and query the West Florida Shelf multibeam and other data. Other spatial data in UTM coordinates can be added to this project, which can be used in research projects.

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.

1. Download the florida.tgz file (60Mb).

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

2. Double click on the florida.aep file within the florida 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 florida.tgz icon and Winzip should start up.

The multibeam data has been divided into 4 regions; northern, central, southern, and Steamboat Lumps.

CON10 - 10-meter depth contours of the northern, central, and southern regions generated from the multibeam bathymetry data.

SBCON10 - 10-meter depth contours of the Steamboat Lumps region generated from the multibeam bathymetry data.

NBATHY.TIF - Shaded-relief bathymetry TIFF image generated from the northern region multibeam bathymetry data. The image shows the bathymetry at 8-m spatial resolution. The illumination azimuth is 300 degrees at an angle of 20 degrees.

CBATHY.TIF - Shaded-relief bathymetry TIFF image generated from the central region multibeam bathymetry data. The image shows the bathymetry at 8-m spatial resolution. The illumination azimuth is 300 degrees at an angle of 20 degrees.

SBBATHY.TIF - Shaded-relief bathymetry TIFF image generated from the southern region multibeam bathymetry data. The image shows the bathymetry at 4-m spatial resolution. The illumination azimuth is 300 degrees at an angle of 20 degrees.

NMOS.TIF - TIFF image generated from the northern region multibeam backscatter data. The image shows the backscatter at 8-m spatial resolution. The lighter tones show higher backscatter (possibly harder surfaces) while the darker tones show lower backscatter (possibly softer surfaces).

CMOS.TIF - TIFF image generated from the central region multibeam backscatter data. The image shows the backscatter at 8-m spatial resolution. The lighter tones show higher backscatter (possibly harder surfaces) while the darker tones show lower backscatter (possibly softer surfaces).

SMOS.TIF - TIFF image generated from the southern region multibeam backscatter data. The image shows the backscatter at 8-m spatial resolution. The lighter tones show higher backscatter (possibly harder surfaces) while the darker tones show lower backscatter (possibly softer surfaces).

SBMOS.TIF - TIFF image generated from the Steamboat Lumps region multibeam backscatter data. The image shows the backscatter at 4-m spatial resolution. The lighter tones show higher backscatter (possibly harder surfaces) while the darker tones show lower backscatter (possibly softer surfaces).

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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