Schwab, William 2000 Open-File Report 2000-462 Woods Hole Coastal and Marine Science Center, Woods Hole, MA U.S. Geological Survey, Coastal and Marine Geology Program https://doi.org/10.3133/ofr00462 https://woodshole.er.usgs.gov/publications/of00-462/ Shawn V. Dadisman Jenna C. Hill William C. Schwab 2000 Open-File Report 2000-462 Reston, VA U.S. Geological Survey Original publication is a 4 CD-ROM set. https://woodshole.er.usgs.gov/publications/of00-462/ This CD-ROM contains digital high resolution seismic reflection data collected during the USGS MGNM 00014 cruise. The coverage is the nearshore of central 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=2000-014-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. 20000313 20000330 publication date In work As needed -78.5 -79.17 33.833 33.25 USGS Metadata Identifier USGS:5742bfa7-7406-47ad-987a-ae9a1b57bf62 None seismic reflection SEG-Y Datasonics SIS-1000 CD-ROM chirp seismics U.S. Geological Survey USGS field activity 00014 ISO 19115 Topic Category oceans geoscientificInformation 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 United States North America none Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the dataset. 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 The SEG-Y files were plotted onboard ship using SEISUNIX seismic processing software archive of SEG-Y format seismic 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 ISIS data acquisition system in QMIPS format. Chirp subbottom channel extracted from raw QMIPS format sonar files and converted to 16-bit Int. SEG-Y format using the program QMIPSTOSEGY. The fish depth was recorded in two-way time (ms) in the delay field (byte 109) of the SEG-Y trace header. 200003 Foster, David S. 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 dfoster@usgs.gov Converted the metadata from HTML to a TEXT version using CNS v. 2.8.4 (chew and spit) metadata pre-parser. Once converted, used TKME (v2.8.4) to fix some problems with the metadata. The fixes included: adding ISO keywords, adding the link to the online publication, deleted empty elements, added the decimal to the denominator of flattening ratio in the geodetic model. 20111024 VeeAnn A. Cross U.S. Geological Survey Marine Geologist work

384 Woods Hole Rd.

Woods Hole MA 02543 USA 508-548-8700 x2251 508-457-2310 vatnipp@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.). 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. 20171206 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 Universal Transverse Mercator 17 .9997 -81 0 0 0 coordinate pair 5 5 meters North American Datum of 1983 Geodetic Reference System 80 6378137 298.257 assumed sea level 1 two-way travel time 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 Suvey Open-File Report 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/of00-462/00-462_1/SEGY/ https://woodshole.er.usgs.gov/publications/of00-462/00-462_2/SEGY/ https://woodshole.er.usgs.gov/publications/of00-462/00-462_3/SEGY/ https://woodshole.er.usgs.gov/publications/of00-462/00-462_4/SEGY/ https://cmgds.marine.usgs.gov/data/2000_014_FA_c/ The online links give access to the folders containing the individual SEG-Y files. The fifth link is another source of the SEG-Y data and may not be exactly the same as the data available from the first four links. CD-ROM ISO 9660 UNIX, DOS, MAC None for online downloads. 20240318 Foster, David S. U.S. Geological Survey Seafloor Mapping Group 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 FGDC-STD-001-1998 universal time none none