This survey is part of an on-going partnership effort funded by the NOAA Coral Reef Conservation Program (CRCP). This survey was funded by a CRCP grant to Andrew David, NOAA Fisheries - Panama City, and Andrew Shepard, NURC/UNCW (The National Oceanographic and Atmospheric Administration's Undersea Research Center at the University of North Carolina at Wilmington). In addition to partners above, other partners include UNCW's Spatial Analysis Lab, US Geological Survey, and the S. Atlantic fishery Management Council.
NOAA Fisheries - Panama City Laboratory, 20050730, Multibeam Mapping of the South Atlantic Bight: Georgia 2005, a Proposed MPA on the Continental Shelf: NOAA Fisheries Laboratory in Panama City, FL, Panama City, FL.This is part of the following larger work.
Fisheries, NOAA, 20050730, Multibeam mapping of proposed MPAs on the continental shelf in the South Atlantic Bight: NOAA Fisheries - Panama City Laboratory, Panama City, FL.
This is a Point data set. It contains the following vector data types (SDTS terminology):
Planar coordinates are encoded using Row and Column
Abscissae (x-coordinates) are specified to the nearest 3.0
Ordinates (y-coordinates) are specified to the nearest 3.0
Planar coordinates are specified in Meters
The horizontal datum used is North American Datum of 1983.
The ellipsoid used is WGS 1984.
The semi-major axis of the ellipsoid used is 6378206.4.
The flattening of the ellipsoid used is 1/294.98.
The primary objective of this joint mapping expedition is to create habitat maps for proposed marine protected areas in the South Altantic Bight (SAB), prior to closure. These bathymetry data will help prepare habitat maps. The surveys will be followed by a ROV expedition later to ground-truth the newly acquired MBES-derived habitat maps. The map will serve as a baseline for assessing change of habitat condition over time, and for monitoring recovery of fish population in the closed area. The new proposed MPAs offer the rare opportunity to quantify habitat and fish assemblages before closure for direct comparision after closure. However, mapping is a prerequisite for any comprehensive research program.
The multi-beam system was mated to a Differential GPS unit, APPLANIX POS/MV (quantified heave, pitch, roll, and yaw heading). HYPACK navigation system was used to maintain vessel course throughout the survey. Sensor data were compiled in SIS Shipboard Data Acquisition and Image Processing System and initially logged to .all Simrad data files. Files were post-processed using CARIS HIPS 5.4 software to remove outliers, correct for sound velocity and tidal stage. HIPS was also used to mosaic backscatter and produce XYA files.
Person who carried out this activity:
0.05% of water depth
The initial surveys produced an extremely large dataset (62 CDs) of raw data in Caris' cross-track format. To create the geotifs, this data set was reduced by post-survey processing including: corrections for sound velocity and tidal stage removal of outliers and data gaps, and calculation and assignment of mean values for 3m X 3m cells throughout the survey area.
Data are believed to be logically consistent, though no tests were performed.
Are there legal restrictions on access or use of the data?
- There are no constraints for use of geotif files, which are available online and from the P.O.C.
- Use_Constraints: Not for legal use
These data are not intended for navigational purposes.
NOAA makes no warranty regarding these data,expressed or implied, nor does the fact of distribution constitute such a warranty. NOAA does not 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.
Although these data have been used by NOAA, these data and information are provided with the understanding that they are not guaranteed to be useable, 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 UNCW, NOAA, the US Department of Commerce, or the U.S. Government, as to their suitability, content, usefulness, functioning, completeness, or accuracy.
Sample of bathymetry XYZ ASCII file
Longitude, Latitude, Elevation 621804.720 3476857.400 108.513 in format ASCII
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Contact Andrew David Andy.David@noaa.gov or 850-234-6541
|Data format:||geoTIFF and ASCII XYZ|