Online Links:
Funding for this study was provided by the USGS CMGP and Texas A&M University - Galveston, TX. We thank R/V Manta Captain Charles Curry of the National Oceanic and Atmospheric Administration (NOAA) for his assistance in data collection. This document was improved by the reviews of Gregory Miller (USGS - WHSC) and Julie Bernier (USGS - SPCMSC).
The data archived here were collected as part of the USGS's Coastal Change and Transport (CCT) study.
Are there legal restrictions on access or use of the data?Access_Constraints: None. These data are held in the public domain.
Use_Constraints:The USGS and Texas A&M University request to be acknowledged as originators of the data in future products or derivative research.
This DVD publication was prepared by an agency of the United States Government. Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data on any other system, nor shall the act of distribution imply any such warranty. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and (or) contained herein. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof.
| Data format: | The SEG-Y standard format (Barry and others, 1975) consists of the following: a 3,600-byte reel identification header, with the first 3,200 bytes consisting of an ASCII header block followed by a 400-byte binary header block, both of which include information specific to line and reel number; a trace data block that follows the reel identification header, with the first 240 bytes of each trace block consisting of the binary trace identification header; and sub-bottom data samples that follow the trace identification header. in format SEG-Y Size: 27400 |
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| Media you can order: |
DVD
(format ISO 9660)
Note: UNIX, Linux, DOS, Macintosh |
| Data format: | The GIS project used to create the trackline maps is composed of map documents, shapefiles, and metadata. Map documents were created with ESRI ArcGIS 9.3 software. The shapefiles provided may also be viewed using other versions of ArcView, ArcGIS, or public domain software ArcExplorer (http://www.esri.com/software/arcexplorer/index.html). in format map document, shapefile, metadata Size: 19.4 |
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| Network links: |
http://pubs.usgs.gov/ds/526/software/arc/arc.zip |
| Data format: | The SEG-Y standard format (Barry and others, 1975) consists of the following: a 3,600-byte reel identification header, with the first 3,200 bytes consisting of an ASCII header block followed by a 400-byte binary header block, both of which include information specific to line and reel number; a trace data block that follows the reel identification header, with the first 240 bytes of each trace block consisting of the binary trace identification header; and sub-bottom data samples that follow the trace identification header. in format Download SEGY data Size: 27400 |
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| Network links: |
http://cmgds.marine.usgs.gov/data/09cct01/chirp/ |
Publications are available from USGS Information Services, Box 25286, Federal Center, Denver, CO 80225-0046 (telephone: 1-888-ASK-USGS, e-mail: infoservices@usgs.gov).
Use of SEG-Y data requires specialized sub-bottom processing software, such as public domain software Seismic Unix (http://www.cwp.mines.edu/cwpcodes/index.html).
