47879 fl_ab06_sbp-pointsASV-meta Data Set Published / External 37225 Benthic Project Completed 2007 These data were collected under a cooperative mapping program between the U.S. Geological Survey (USGS), the National Oceanic and Atmospheric Administration Office for Coastal Management (NOAA\OCM), and the Apalachicola National Estuarine Research Reserve (NERR). The primary objectives of this program were to collect marine geophysical data to develop a suite of seafloor maps to better define the extent of oyster habitats, the overall seafloor geology of the bay and provide updated information for management of this resource. In addition to their value for management of the bay's oyster resources, the maps also provide a geologic framework for scientific research and the public. High-resolution bathymetry, backscatter intensity, and seismic profile data were collected over 230 square kilometers of the floor of the bay. The study focused on the Apalachicola Bay and Western St. George Sound portions of the estuary mostly in depths > 2.0 meters. Original contact information: Contact Name: Brian Andrews Contact Org: U.S. Geological Survey Title: Geographer Phone: 508-548-8700 x2348 Email: bandrews@usgs.gov This shapefile represents the shotpoints at a 500 shot interval derived from the navigation for seismic-reflection profiles collected from the ASV IRIS during USGS field activity 06001 in Apalachicola Bay and St. George Sound, Florida. The purpose of these data is to provide geographic locations of shot points so that features in the seismic profiles can be properly located along the tracklines. 10036 Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > BENTHIC Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > COASTAL Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > ESTUARY Theme ISO 19115 Topic Category location Theme ISO 19115 Topic Category oceans Theme ISO 19115 Topic Category transportation Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > FLORIDA Spatial Global Change Master Directory (GCMD) Location Keywords OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF AMERICA Theme General ASV Theme General Autonomous Surface Vehicle Theme General CMGP Theme General Coastal and Marine Geology Program Theme General Environmental Monitoring Theme General IRIS Theme General Marine Geology Theme General Seafloor Theme General Seismic Profile Theme General U.S. Geological Survey Theme General USGS Theme General WHSC Theme General Woods Hole Science Center Theme General field activity serial number 06001 Theme General geologic mapping Theme General seafloor mapping Theme General seismic shotpoints Temporal General 2006 Spatial General Apalachicola Bay Spatial General Apalachicola National Estuarine Research Reserve Spatial General Florida Spatial General Gulf of Mexico Spatial General St. George Sound Spatial General United States Stratum General Subsurface Office for Coastal Management Charleston SC Data Set None Planned Map (digital) Although this data set has been used by the U.S. Geological Survey (USGS), no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. 49281 ASV_SeismicShot500 Published / External Completed Shotpoint navigation for ASV seismic data collected during field activity 06001. | Description Source: USGS Converted from FGDC using 'fgdc_to_inport_xml_entity.pl' script. 1 FID Unknown No No Active Internal feature number. | Description Source: ESRI Sequential unique whole numbers that are automatically generated. 2 Shape Unknown No No Active Feature geometry. | Description Source: ESRI Coordinates defining the features. 3 Lon Unknown No No Active Longitude coordinate of shot | Description Source: USGS Varies per shot 4 Lat Unknown No No Active Latitude coordinate of shot | Description Source: USGS Varies per shot 5 Line Unknown No No Active Name of survey line and file name | Description Source: USGS Designated line number 6 Shot Unknown No No Active The number of the seismic shot in 500 shot intervals | Description Source: USGS Shotpoint identification 7 UTMX Unknown No No Active The X coordinate in Universal Transverse Mercator (UTM), meters | Description Source: USGS Varies per shot 8 UTMY Unknown No No Active The Y Coordinate in Universal Transverse Mercator (UTM), meters | Description Source: USGS Varies per shot 9 YEAR_ VARCHAR No No Active Calendar year data were collected | Description Source: USGS 2006: USGS Survey 06001 | 10 JDHrMinSec Unknown No No Active Time in Julian day, hour, minute, second format. | Description Source: USGS Variable depending on time and date. 11 JDay NUMBER No No Active Day of the year identified as Julian day. | Description Source: USGS Day 1 - 366 Data Steward 2007 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Distributor 2007 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Metadata Contact 2007 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Point of Contact 2007 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Ground Condition -85.062548 -84.809732 29.746337 29.618655 Range 2006-06-03 2006-06-27 Yes Yes 4183 Unclassified None These data should not be used at resolutions for which they are not intended. Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information. ftp://ftp.coast.noaa.gov/pub/benthic/Sub-Bottom_Profile_Data/FL_ApalachicolaBay_sbp-asv.zip Bulk Download FTP download of data files. http://pubs.usgs.gov/of/2006/1381/GIS/thumbnails/ASV_SeismicShot500.jpg Browse Graphic Browse Graphic JPEG JPEG image of seismic shots on ASV lines. 2017-03-30 Date that the source FGDC record was last modified. 2017-11-14 Converted from FGDC Content Standards for Digital Geospatial Metadata (version FGDC-STD-001-1998) using 'fgdc_to_inport_xml.pl' script. Contact Tyler Christensen (NOS) for details. 2018-02-08 Partial upload of Positional Accuracy fields only. 2018-04-11 Partial upload to move data access FTP links to Distribution Info and remove broken URLs. Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.2.1350 RTK GPS was used to navigate the survey systems for seismic-reflection systems. The GPS antenna was mounted over the seismic system. Navigation was recorded to all data acquisition systems using Real Time Kinematic GPS at a one second interval. Horizontal accuracy of the navigation is assumed to be +/- 1 meter. The shot point file and survey line file for the seismic data are both derived from the same navigation file that was logged by the seismic acquisition system, but because the two were processed differently, the shot points do not always fall directly on the survey line. To create the shot point file, the navigation was queried to extract every 500th point starting with shot point 500. By contrast, to create the survey line file, the navigation was queried at a one minute interval (every 60th point), and then a line was drawn using these points. Because of the different processing approaches, many of the shot points, although close, do not fall exactly on the survey line. If meter accuracy is truely needed, it would be best to extract the navigation from the archived SEG-Y seismic files. Shot points are not available for sections of the survey lines where seismic data were not logged. Data was compared to sediment grabs and was collected following standard best practices for recording sub-bottom profile data. 1 Navigation was extracted from raw SEG-Y format and converted to ASCII text file. The file containing navigation for each shot was then queried to extract shots at 500 shot interval using the awk script makenav developed for USGS by Bill Danforth. The 500 shot file for each survey line was concatenated and imported to ArcGIS 9.1 then converted to a point feature class. 2007-05-20T00:00:00 2 Exported feature class from personal geodatabase to a shapefile and projected to geographic. 2007-07-01T00:00:00 49281 Entity gov.noaa.nmfs.inport:47879 Anne Ball 2017-11-14T12:57:23 Brianna Key 2025-04-30T22:34:40 2018-04-11 Office for Coastal Management OCM 1002 Public No No 2018-04-11 1 Year 2019-04-11