Dataset Identification:
Resource Abstract:
- description: A submerged topography digital elevation model (DEM) mosaic for a portion of the submerged environs of Crocker
Reef, Florida, was produced from remotely sensed, geographically referenced elevation measurements collected on April 13 and
22, 2014 by the U.S. Geological Survey. Elevation measurements were collected over the area using the second-generation Experimental
Advanced Airborne Research Lidar (EAARL-B), a pulsed laser ranging system mounted onboard an aircraft to measure ground elevation,
vegetation canopy, and coastal topography. The system uses high-frequency laser beams directed at the Earth's surface
through an opening in the bottom of the aircraft's fuselage. The laser system records the time difference between emission
of the laser beam and the reception of the reflected laser signal in the aircraft. The plane travels over the target area
at approximately 55 meters per second at an elevation of approximately 300 meters, resulting in a laser swath of approximately
240 meters with an average point density of 0.9 points per square meter. A peak sampling rate of 15•30 kilohertz results
in an extremely dense spatial elevation dataset. More than 100 kilometers of coastline can be surveyed easily within a 3-
to 4-hour mission. When resultant elevation maps for an area are analyzed, they provide a useful tool to make management decisions
regarding land development.; abstract: A submerged topography digital elevation model (DEM) mosaic for a portion of the submerged
environs of Crocker Reef, Florida, was produced from remotely sensed, geographically referenced elevation measurements collected
on April 13 and 22, 2014 by the U.S. Geological Survey. Elevation measurements were collected over the area using the second-generation
Experimental Advanced Airborne Research Lidar (EAARL-B), a pulsed laser ranging system mounted onboard an aircraft to measure
ground elevation, vegetation canopy, and coastal topography. The system uses high-frequency laser beams directed at the Earth's
surface through an opening in the bottom of the aircraft's fuselage. The laser system records the time difference between
emission of the laser beam and the reception of the reflected laser signal in the aircraft. The plane travels over the target
area at approximately 55 meters per second at an elevation of approximately 300 meters, resulting in a laser swath of approximately
240 meters with an average point density of 0.9 points per square meter. A peak sampling rate of 15•30 kilohertz results
in an extremely dense spatial elevation dataset. More than 100 kilometers of coastline can be surveyed easily within a 3-
to 4-hour mission. When resultant elevation maps for an area are analyzed, they provide a useful tool to make management decisions
regarding land development.
Citation
- Title EAARL-B Submerged Topography —Crocker Reef, Florida, 2014.
-
- creation Date
2018-05-21T09:42:19.330548
Resource language:
Processing environment:
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Metadata data stamp:
2018-08-06T20:30:34Z
Resource Maintenance Information
- maintenance or update frequency:
- notes: This metadata record was generated by an xslt transformation from a dc metadata record; Transform by Stephen M. Richard, based
on a transform by Damian Ulbricht. Run on 2018-08-06T20:30:34Z
Metadata contact
-
pointOfContact
- organisation Name
CINERGI Metadata catalog
-
- Contact information
-
-
- Address
-
- electronic Mail Address cinergi@sdsc.edu
Metadata language
eng
Metadata character set encoding:
utf8
Metadata standard for this record:
ISO 19139 Geographic Information - Metadata - Implementation Specification
standard version:
2007
Metadata record identifier:
urn:dciso:metadataabout:7671c129-b927-4f56-a4a9-600a308bfa22
Metadata record format is ISO19139 XML (MD_Metadata)