Dataset Identification:
Resource Abstract:
- description: ASCII XYZ point cloud data for a portion of the submerged environs of Crocker Reef, Florida, were 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: ASCII XYZ point cloud data for a portion of the submerged environs of Crocker Reef, Florida, were
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
2018-05-21T10:10:31.979603
Resource language:
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Metadata data stamp:
2018-08-06T22:53:54Z
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 2018-08-06T22:53:54Z
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:1a19f756-3dbd-4009-b436-35684de033a0
Metadata record format is ISO19139 XML (MD_Metadata)