west_florida_shelf_southern_backscatter_2001 eng; USA utf8 dataset Pete Dartnell United States Geological Survey (USGS) Coastal and Marine Geology (CMG) Physical Scientist (650) 329-5460 (650) 329-5411 USGS, MailStop 999, 345 Middlefield Road Menlo Park CA 94025-3561 USA pdartnell@usgs.gov pointOfContact 2025-03-16 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Point World Geodetic System 1984 WGS 84 2007-08-27 revision https://epsg.org/crs_4326/WGS-84.html WGS 84 GML of World Geodetic System 1984 coordinate reference system. information resourceProvider European Petroleum Survey Group https://epsg.org/home.html European Petroleum Survey Group Geodetic Parameter Registry Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems and Coordinate Transformations. search publisher urn:ogc:def:crs:EPSG::4326 Backscatter Mapping of the West Florida Shelf (Southern Region), Gulf of Mexico (NODC Accession 0001410) 2001 publication United States Geological Survey (USGS), Coastal and Marine Geology (CMG), Chief Scientist (James V. Gardner) originator XYZ ASCII AND ARCINFO GRID XYZ ASCII format data generated from the 2001 multibeam sonar survey of the West Florida Shelf, Gulf of Mexico. The data include high-resolution bathymetry and calibrated acoustic backscatter. These data are intended for science researchers, students, policy makers, and the general public. The data can be used with geographic information systems (GIS) or other software to display bathymetry and backscatter data of the West Florida Shelf, Gulf of Mexico. completed James V. Gardner United States Geological Survey (USGS) Coastal and Marine Geology (CMG) Geologist (650) 329-5469 (650) 329-5411 USGS, MailStop 999, 345 Middlefield Road Menlo Park CA 94025-3561 USA jvgardner@usgs.gov pointOfContact asNeeded CoRIS_Metadata theme NCEI Geoportal Filter Cross-shelf mulitbeam survey of west Florida shelf 1194 project CRCP Project Geographic Information > Backscatter theme CoRIS Discovery Thesaurus EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Mapping theme CoRIS Theme Thesaurus Marine Geology Multibeam Bathymetry Backscatter Water Depth Ocean Floor Topography Deep-water Reefs theme None COUNTRY/TERRITORY > United States of America > Florida > Twin Ridges (28N085W0001) OCEAN BASIN > Atlantic Ocean > Gulf of America > West Florida Shelf > Twin Ridges (28N085W0001) place CoRIS Place Thesaurus West Florida Shelf Florida Gulf of Mexico USA place None Florida place CoRIS Region Gulf of Mexico Gulf of America place CoRIS Region These data not intended for navigational purposes. Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, these data and information are provided with the understanding that they are not guaranteed to be usable, timely, accurate, or complete. Users are cautioned to consider carefully the provisional nature of these data and information before using them for decisions that concern personal or public safety or the conduct of business that involves substantial monetary or operational consequences. Conclusions drawn from, or actions undertaken on the basis of, such data and information are the sole responsibility of the user. Neither the U.S. Government nor any agency thereof, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any data, software, information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. Trade, firm, or product names and other references to non-USGS products and services are provided for information only and do not constitute endorsement or warranty, express or implied, by the USGS, USDOI, or U.S. Government, as to their suitability, content, usefulness, functioning, completeness, or accuracy. NOAA makes no warranty regarding these data, expressed or implied, nor does the fact of distribution constitute such a warranty. NOAA and NODC cannot assume liability for any damages caused by any errors or omissions in these data, nor as a result of the failure of these data to function on a particular system. otherRestrictions Use Constraints: Please recognize the National Oceanic and Atmospheric Administration (NOAA) and the U.S. Geological Survey (USGS) as the source of this information. NOAA and USGS-authored or produced data and information are in the public domain. otherRestrictions Access Constraints: None vector eng; USA elevation -86.05113 -85.37676 28.86023 29.28602 2001-09-03 2001-10-12 Information for USGS Coastal and Marine Geology related activities are online at http://walrus.wr.usgs.gov/infobank/m/m201gm/html/m-2-01-gm.meta.html Resource Description: M-01-GM data set Entity and Attribute Overview: Sample of Backscatter XYZ ASCII file Longitude, Latitude, DN Value -86.57421,30.06640,207.696 -86.57413,30.06640,206.398 -86.57405,30.06640,203.770 -86.57398,30.06640,201.170 -86.57390,30.06640,201.098 -86.57382,30.06640,202.064 -86.57374,30.06640,202.693 -86.57367,30.06640,202.720 -86.57444,30.06632,201.992 Entity and Attribute Detail Citation: none ASCII ArcInfo GRID 8.0.2 United States Geological Survey (USGS) Information Services (888)ASK-USGS Box 25286 Denver CO 80225 USA distributor None https://pubs.usgs.gov/of/2002/0005/site/data.html download https://pubs.usgs.gov/of/2002/0005/site/data.html download dataset Horizontal Positional Accuracy Report 0.5 meters Vertical Positional Accuracy Report 0.05 percent of the water depth Complete Point features present. The bathymetry and backscatter data were collected along a continuous swath perpendicular to the direction of the ship using a Kongsberg Simrad EM1002 multibeam sonar system. The data are cleaned of bad navigation and depth readings. The depth readings are gridded into a common grid. The gridded data are converted to an XYZ ASCII format file (Longitude, Latitude, Attribute) and the gridded data are converted to ArcInfo GRID format using ArcInfo's ASCIIGRID command. 2001-10-12T00:00:00 James V. Gardner United States Geological Survey (USGS) Coastal and Marine Geology (CMG) Geologist (650) 329-5469 (650) 329-5411 USGS, MailStop 999, 345 Middlefield Road Menlo Park CA 94025-3561 USA jvgardner@usgs.gov processor annually This metadata was automatically generated from the FGDC Content Standard for Digital Geospatial Metadata standard (version FGDC-STD-001-1998) using the 2016-01-11 version of the FGDC RSE to ISO 19115-2 transform. Translated from FGDC 2025-03-24T19:25:32.249Z Pete Dartnell United States Geological Survey (USGS) Coastal and Marine Geology (CMG) Physical Scientist (650) 329-5460 (650) 329-5411 USGS, MailStop 999, 345 Middlefield Road Menlo Park CA 94025-3561 USA pdartnell@usgs.gov pointOfContact