Benthic Habitat Mapping - Dry Tortugas RoxAnn Acoustic Sensor Data Points

During April 2001 RoxAnn single-beam acoustic surveys were conducted at the North Unit of the Tortugas Ecological Reserve, Florida. Thirteen transects associated with fixed bottom sampling stations were surveyed to characterize the ecotone around the stations. In addition survey tracks were run along the outer edge of the Tortugas platform reef complex and into the interior of the platform. A towed video sled (minibat) was deployed simultaneously with the RoxAnn survey which provided a live video ground truth to the acoustic signals. Using this ground truth several bottom classes were identified including coral, seagrass, algae, unconsolidated sediments, and hardbottoms. The original RoxAnn categories are preserved in the Class field and benthic habitat codes from the Florida System for Classifying Estuarine and Marine Environments (SCHEME) system are preserved in the SCHEME field. The depth value is in meters below transducer surface.

Data and Resources

Additional Info

Field Value
Last Updated June 19, 2017, 21:52
Created June 19, 2017, 21:52
access_constraints ["Use Constraints: Bathymetric data have not been corrected for tide and wind variables. Not for use in navigation.", "Access Constraints: None"]
bbox-east-long -82.764817554986
bbox-north-lat 24.7390892558496
bbox-south-lat 24.5194528984085
bbox-west-long -82.9968785850452
coupled-resource []
dataset-reference-date [{"type": "publication", "value": "2005-08-01"}]
frequency-of-update notPlanned
licence ["Single-beam acoustic data points collected in the Dry Tortugas area of Florida. While every effort has been made to ensure that these data are accurate and reliable within limits of the state of the art, NOAA will not assume any liability for damages caused by any inaccuracies in these data, or failure in their use."]
metadata-date 2017-03-30
progress completed
resource-type dataset
responsible-party [{"name": "NOAA Office for Coastal Management", "roles": ["pointOfContact"]}]
spatial {"type": "Polygon", "coordinates": [[[-82.996878585, 24.5194528984], [-82.764817555, 24.5194528984], [-82.764817555, 24.7390892558], [-82.996878585, 24.7390892558], [-82.996878585, 24.5194528984]]]}
spatial_harvester true
temporal-extent-begin 2001-04-08
temporal-extent-end 2001-04-12