Schwab, William 1999 Open-File Report 2000-040 Woods Hole Coastal and Marine Science Center, Woods Hole, MA U.S. Geological Survey, Coastal and Marine Geology Program https://doi.org/10.3133/ofr0040 https://woodshole.er.usgs.gov/publications/of00-40/ Jenna C. Hill William C. Schwab Shawn Dadisman William W. Danforth Jane F. Denny Thomas F. O'Brien Ken Parolski 1999 Open-File Report 2000-040 Reston, VA U.S. Geological Survey original publication was a 9 CD-ROM set. https://woodshole.er.usgs.gov/publications/of00-40/ This CD-ROM contains digital high resolution seismic reflection data collected during the USGS ATSV 99044 cruise. The coverage is the nearshore of the northern South Carolina. The seismic-reflection data are stored as SEG-Y standard format that can be read and manipulated by most seismic-processing software. Much of the information specific to the data are contained in the headers of the SEG-Y format files. The file system format is ISO 9660 which can be read with DOS, Unix, and MAC operating systems with the appropriate CD-ROM driver software installed. In November 1999, the U. S. Geological Survey, in cooperation with Coastal Carolina University, began a program to produce geologic maps of the nearshore regime off northern South Carolina, utilizing high resolution sidescan sonar, interferometric (direct phase methods) swath bathymetry, and seismic subbottom profiling systems. The study areas extends from the ~7m isobath to about 10km offshore (water depths <12m). The goals of the investigation are to determine regional scale sand resource availability needed for planned beach nourishment programs, to investigate the roles that the inner shelf morphology and geologic framework play in the evolution of this coastal region, and to provide baseline geologic maps for use in proposed biologic habitat studies. For more information on the seismic surveys see https://cmgds.marine.usgs.gov/fan_info.php?fan=1999-044-FA These data are also available via GeoMapApp (http://www.geomapapp.org/) and Virtual Ocean ( http://www.virtualocean.org/) earth science exploration and visualization applications. 19991029 19991112 Publication date In work As needed -79.1 -78.6 33.8 33.4 USGS Metadata Identifier USGS:44f300cf-d337-418d-b4ba-d21ae4675be2 none seismic reflection SEG-Y Chirp Datasonics SIS-1000 ISO 9660 CD-ROM Data Categories for Marine Planning distributions substrate Marine Realms Information Bank (MRIB) Keywords seismic reflection profiling marine geophysics USGS Thesaurus seismic reflection methods sub-bottom profiling marine geophysics none Atlantic Ocean South Carolina SC none credit U.S.Geological Survey Schwab, William U.S. Geological Survey Seafloor Mapping Project mailing address

U.S. Geological Survey Woods Hole Field Center 384 Woods Hole Road Quissett Campus

Woods Hole MA 02543-1598 USA (508) 548-8700 (508) 457-2310 bschwab@usgs.gov Seafloor Mapping Group SEG-Y unknown unknown The SEG-Y files were plotted onboard ship using SEISUNIX seismic processing software Completeness_Report: archive of SEG-Y format seismic data These data are logically consistent. These data are complete. No further processing and/or modifications will be made to these data. The ship was navigated with differential GPS 10 DGPS is assumed to be accurate within 5-10 meters The vertical position was local sea level and there was no correction to a datum The subbottom data were recorded on the Delph Elics data acquisition system in SEG-Y format. 19991029 Hill, Jenna C. U.S. Geological Survey Seafloor Mapping Project mailing address

U.S. Geological Survey Woods Hole Field Center 384 Woods Hole Road Quissett Campus

Woods Hole MA 02543-1598 USA (508) 548-8700 (508) 457-2310 jhill@usgs.gov Keywords section of metadata optimized for discovery in USGS Coastal and Marine Geology Data Catalog. 20170124 U.S. Geological Survey Alan O. Allwardt Contractor -- Information Specialist mailing and physical address

2885 Mission Street

Santa Cruz CA 95060 831-460-7551 831-427-4748 aallwardt@usgs.gov Edits to the metadata were made to fix any errors that MP v 2.9.36 flagged. This is necessary to enable the metadata to be successfully harvested for various data catalogs. In some cases, this meant adding text "Information unavailable" or "Information unavailable from original metadata" for those required fields that were left blank. Other minor edits were probably performed (title, publisher, publication place, etc.). The title was modified to reflect the location. Attempted to modify http to https where appropriate. Added the Larger Work Citation. The distribution format name was modified in an attempt to be more consistent with other metadata files of the same data format. The metadata date (but not the metadata creator) was edited to reflect the date of these changes. The metadata available from a harvester may supersede metadata bundled within a download file. Compare the metadata dates to determine which metadata file is most recent. Additional edits were probably made to the original metadata by someone else who did not document what they changed. 20171205 U.S. Geological Survey VeeAnn A. Cross Marine Geologist Mailing and Physical

384 Woods Hole Road

Woods Hole MA 02543-1598 508-548-8700 x2251 508-457-2310 vatnipp@usgs.gov Crossref DOI link was added as the first link in the metadata. 20191118 U.S. Geological Survey VeeAnn A. Cross Marine Geologist Mailing and Physical

384 Woods Hole Road

Woods Hole MA 02543-1598 508-548-8700 x2251 508-457-2310 vatnipp@usgs.gov Added keywords section with USGS persistent identifier as theme keyword. 20200908 U.S. Geological Survey VeeAnn A. Cross Marine Geologist Mailing and Physical

384 Woods Hole Road

Woods Hole MA 02543-1598 508-548-8700 x2251 508-457-2310 vatnipp@usgs.gov Horizontal X and Y UTM coordinates for each shot location are located in the SEG-Y trace headers Point Universal Transverse Mercator 17 .9997 -81 0 0 0 coordinate pair 5 5 meters North American Datum of 1983 Geodetic Reference System 80 6378137 298257 assumed sea level 1 meters Attribute values local surface (sea level) 1 meters Attribute values Soderberg, Nancy U.S. Geological Survey Data Library mailing address

U.S. Geological Survey Woods Hole Field Center 384 Woods Hole Road Quissett Campus

Woods Hole MA 02543-1598 USA (508) 548-8700 (508) 457-2310 nsoderberg@usgs.gov U.S. Geological Survey Internal CD-ROM Data Archive This Compact Disc-Read Only Memory (CD-ROM) publication was prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Any views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Although all data published on this CD-ROM have been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and related materials and/or the functioning of the software. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of this data, software, or related materials. SEG-Y Link is to a folder containing SEG-Y files. https://woodshole.er.usgs.gov/publications/of00-40/SEGY/ https://cmgds.marine.usgs.gov/data/1999_044_FA_c/ The online links give access to the folders containing the individual SEG-Y files. The second link is another source of the SEG-Y data and may not be exactly the same as the data available from the first link. CD-ROM ISO 9660 UNIX, DOS, MAC none 20240318 Hill, Jenna C. U.S. Geological Survey Seafloor Mapping Project mailing address

U.S. Geological Survey Woods Hole Field Center 384 Woods Hole Road Quissett Campus

Woods Hole MA 02543-1598 USA (508) 548-8700 (508) 457-2310 whsc_data_contact@usgs.gov The metadata contact email address is a generic address in the event the person is no longer with USGS. (updated on 20240318) FGDC Content Standard 19940608 universal time none none