Autonomous Surface Vehicle Side-Scan-Sonar Mosaic of Apalachicola Bay, Florida
Data Set (DS) | Office for Coastal Management (OCM)GUID: gov.noaa.nmfs.inport:47850 | Updated: May 30, 2023 | Published / External
Item Identification
Title: | Autonomous Surface Vehicle Side-Scan-Sonar Mosaic of Apalachicola Bay, Florida |
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Short Name: | benthic_fl_ab06_sss-mosaicASV-meta |
Status: | Completed |
Publication Date: | 2007 |
Abstract: |
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 |
Purpose: |
These data are high-resolution acoustic backscatter measurements over part of Porter's Bar in St. George Sound, Florida. These data were collected using the Autonomous Surface Vessel (ASV) IRIS primarily over known oyster bars in waters less than 1-2 meters deep. |
Notes: |
10152 |
Keywords
Theme Keywords
Thesaurus | Keyword |
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Global Change Master Directory (GCMD) Science Keywords |
EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > BENTHIC
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Global Change Master Directory (GCMD) Science Keywords |
EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > COASTAL
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Global Change Master Directory (GCMD) Science Keywords |
EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > ESTUARY
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ISO 19115 Topic Category |
geoscientificInformation
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ISO 19115 Topic Category |
imageryBaseMapsEarthCover
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ISO 19115 Topic Category |
oceans
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UNCONTROLLED | |
General | ASV |
General | Autonomous Surface Vehicle |
General | CMGP |
General | Coastal and Marine Geology Program |
General | EdgeTech |
General | EdgeTech 4200 FS |
General | field activity serial number 06001 |
General | GeoTIFF image |
General | IRIS |
General | Marine Geology |
General | Seafloor |
General | Sidescan |
General | Sidescan-Sonar |
General | U.S. Geological Survey |
General | USGS |
General | WHSC |
General | Woods Hole Science Center |
None | Environmental Monitoring |
Temporal Keywords
Thesaurus | Keyword |
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UNCONTROLLED | |
General | 2006 |
Spatial Keywords
Thesaurus | Keyword |
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Global Change Master Directory (GCMD) Location Keywords |
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > FLORIDA
|
UNCONTROLLED | |
None | Apalachicola Bay |
None | Apalachicola National Estuarine Research Reserve |
None | Florida |
None | Gulf of Mexico |
None | St. George Sound |
None | United States |
Physical Location
Organization: | Office for Coastal Management |
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City: | Charleston |
State/Province: | SC |
Data Set Information
Data Set Scope Code: | Data Set |
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Maintenance Frequency: | None Planned |
Data Presentation Form: | Image (digital) |
Entity Attribute Overview: |
Side-scan sonar images are grey scale rasters. There are no attributes associated with a GeoTIFF image. Image pixel values contain acoustic reflectivity values normalized to an 8-bit data range (0-255). Low-backscatter is represented by dark tones (low values) and high-backscatter is represented by bright tones (high values). |
Entity Attribute Detail Citation: |
None |
Distribution Liability: |
NOAA manages much of the data to users of digital geographic data.NOAA is in no way condoning or endorsing the application of this data for any given purpose.It is the sole responsibility of the user to determine whether or not the data is suitable for the intended purpose.It is also the obligation of the user to apply the data in an appropriate and conscientious manner.NOAA provides no warranty,nor accepts any liability occurring from any incomplete,incorrect, or misleading data, or from any incorrect,incomplete, or misleading use of the data.Much of the data is based on and maintained with ARC/GIS software developed by the Environmental Systems Research Institute (ESRI).In addition, much of the information presented uses conventions and terms popularized by ARC/GIS and its user community. NOAA in no way represents the interests of ESRI,nor acts as agents for them. The user must have software capable of viewing a GeoTIFF data file. |
Support Roles
Data Steward
Date Effective From: | 2007 |
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Date Effective To: | |
Contact (Organization): | NOAA Office for Coastal Management (NOAA/OCM) |
Address: |
2234 South Hobson Ave Charleston, SC 29405-2413 |
Email Address: | coastal.info@noaa.gov |
Phone: | (843) 740-1202 |
URL: | https://coast.noaa.gov |
Distributor
Date Effective From: | 2007 |
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Date Effective To: | |
Contact (Organization): | NOAA Office for Coastal Management (NOAA/OCM) |
Address: |
2234 South Hobson Ave Charleston, SC 29405-2413 |
Email Address: | coastal.info@noaa.gov |
Phone: | (843) 740-1202 |
URL: | https://coast.noaa.gov |
Metadata Contact
Date Effective From: | 2007 |
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Date Effective To: | |
Contact (Organization): | NOAA Office for Coastal Management (NOAA/OCM) |
Address: |
2234 South Hobson Ave Charleston, SC 29405-2413 |
Email Address: | coastal.info@noaa.gov |
Phone: | (843) 740-1202 |
URL: | https://coast.noaa.gov |
Point of Contact
Date Effective From: | 2007 |
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Date Effective To: | |
Contact (Organization): | NOAA Office for Coastal Management (NOAA/OCM) |
Address: |
2234 South Hobson Ave Charleston, SC 29405-2413 |
Email Address: | coastal.info@noaa.gov |
Phone: | (843) 740-1202 |
URL: | https://coast.noaa.gov |
Extents
Currentness Reference: | Ground Condition |
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Extent Group 1
Extent Group 1 / Geographic Area 1
W° Bound: | -85.066448 | |
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E° Bound: | -84.804303 | |
N° Bound: | 29.748173 | |
S° Bound: | 29.616901 |
Extent Group 1 / Time Frame 1
Time Frame Type: | Discrete |
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Start: | 2006-06-03 |
Spatial Information
Spatial Representation
Representations Used
Grid: | Yes |
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Grid Representation 1
Dimension Count: | 3 | ||||
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Cell Geometry: | Point | ||||
Transformation Parameters Available?: | No | ||||
Axis Dimension 1 |
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Axis Dimension 2 |
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Axis Dimension 3 |
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Access Information
Security Class: | Unclassified |
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Data Access Constraints: |
None |
Data Use Constraints: |
Data are not intended for navigational use. These data should not be used at resolutions for which it is 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. |
Distribution Information
Distribution 1
Download URL: | ftp://ftp.coast.noaa.gov/pub/benthic/Side_Scan_Sonar_Backscatter_Data/FL_ApalachicolaBay_sss-asv.zip |
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Distributor: | |
File Name: | Bulk Download |
Description: |
FTP download of data files. |
URLs
URL 1
URL: | https://coast.noaa.gov/ |
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Name: | NOAA's Office for Coastal Management (OCM) website |
URL Type: |
Online Resource
|
Description: |
Information on the NOAA Office for Coastal Management (OCM) |
Activity Log
Activity Log 1
Activity Date/Time: | 2017-03-30 |
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Description: |
Date that the source FGDC record was last modified. |
Activity Log 2
Activity Date/Time: | 2017-11-14 |
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Description: |
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. |
Activity Log 3
Activity Date/Time: | 2018-02-08 |
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Description: |
Partial upload of Positional Accuracy fields only. |
Activity Log 4
Activity Date/Time: | 2018-04-11 |
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Description: |
Partial upload to move data access FTP links to Distribution Info and remove broken URLs. |
Technical Environment
Description: |
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.2.1350 |
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Data Quality
Accuracy: |
Not relevant to this data set. |
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Horizontal Positional Accuracy: |
The ASV used RTK-GPS for navigation. RTK-GPS is assumed to be accurate within 1-2 meters. All GPS/DGPS data are referenced to WGS84. The sidescan-sonar transducers are mounted on a metal frame between the two pontoons about 0.5m below water surface, and directly below the GPS antenna.. |
Completeness Report: |
Although both the 100 kHz and 400 kHz frequency data were collected, only the high-frequency 400 kHz data were processed and included in this mosaic. Small differences in contrast stretch (DN values) exist because of variations in sea and weather conditions on each survey day. |
Conceptual Consistency: |
Not applicable for raster data. |
Lineage
Process Steps
Process Step 1
Description: |
The sidescan-sonar data were acquired with a EdgeTech 4200 FS dual-frequency sidescan-sonar system. The EdgeTech 4200 operates in a frequency range of 100 and 400 kHz. Data were collected and logged to onboard in .jsf format using EdgeTech JStar acquisition software. All jsf files for each Julian day were imported to Xsonar and converted to Xsonar format using the 400 kHz channel. Each file was corrected for slant range and beam pattern corrections as described in Danforth (1997). The individual line files were mosaiced in Xsonar with a range cutoff of 25m. The composite mosaic was exported as a GeoTIFF image, with an associated world file. |
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Process Date/Time: | 2006-09-01 00:00:00 |
Catalog Details
Catalog Item ID: | 47850 |
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GUID: | gov.noaa.nmfs.inport:47850 |
Metadata Record Created By: | Anne Ball |
Metadata Record Created: | 2017-11-14 12:57+0000 |
Metadata Record Last Modified By: | SysAdmin InPortAdmin |
Metadata Record Last Modified: | 2023-05-30 18:09+0000 |
Metadata Record Published: | 2018-04-11 |
Owner Org: | OCM |
Metadata Publication Status: | Published Externally |
Do Not Publish?: | N |
Metadata Last Review Date: | 2018-04-11 |
Metadata Review Frequency: | 1 Year |
Metadata Next Review Date: | 2019-04-11 |