README
Data Series 569
Archive of Digital Chirp Sub-bottom Profile Data Collected During USGS Cruises 08CCT02 and 08CCT03, Mississippi Gulf Islands, July and September 2008
By Arnell S. Forde, Shawn V. Dadisman, James G. Flocks, and Dana S. Wiese



Getting Started
      
      To access the information contained on this disc, use a Web browser to open the 
file index.html. 

System Requirements
      
      This disc is readable on any computing platform that has standard Digital 
Versatile Disc (DVD) driver software installed. The minimum software requirements are 
a Web browser, a portable document format (PDF) reader, and a text editor.

DVD Organization
      
      This report is divided into seven sections: Acronyms and Abbreviations, Disc 
Contents, Navigation Data and Maps, Seismic Profiles, Field Activity Logs, Federal 
Geographic Data Committee (FGDC) Metadata, and Software. Links at the top and 
bottom of each page provide access to these sections. This report contains links to the 
U.S. Geological Survey (USGS), collaborators, and other available resources if access to 
the Internet is available while viewing these documents.  Geographic Information System 
(GIS) files, Society of Exploration Geophysicists (SEG)-Y binary data files, Hypertext 
Markup Language (HTML) files and images used to produce the Web pages, and this 
readme file are also included in this report.  The Disc Contents page contains a diagram 
with locations and links to all files and folders contained on this disc.
Project Summary
      
      In July and September of 2008, the USGS conducted geophysical surveys to 
investigate the shallow geologic framework along the Gulf Islands, Mississippi, 
for the Northern Gulf of Mexico (NGOM) Ecosystem Change and Hazard 
Susceptibility project. This project is also part of a broader USGS study on Coastal 
Change and Transport (CCT). This report serves as an archive of unprocessed digital 
Chirp sub-bottom profile data, trackline maps, navigation files, GIS files, Field Activity 
Collection System (FACS) logs, and formal FGDC metadata. Gained (a relative increase 
in signal amplitude) digital images of the seismic profiles are also provided.