Dataset Identification:
Resource Abstract:
- description: ASCII XYZ point cloud data for a portion of the environs of Anegada, British Virgin Islands, was produced from
remotely sensed, geographically referenced elevation measurements collected March 19-20, 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
spacing of 0.5-1.6 meters. The nominal vertical elevation accuracy expressed as the root mean square error (RMSE) is 20 centimeters.
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 environs of Anegada, British Virgin Islands, was produced from remotely sensed, geographically referenced
elevation measurements collected March 19-20, 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 spacing of 0.5-1.6 meters. The nominal
vertical elevation accuracy expressed as the root mean square error (RMSE) is 20 centimeters. 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 Coastal Topography—Anegada, British Virgin Islands, 2014.
-
- creation Date
2018-05-20T01:44:35.143812
Resource language:
Processing environment:
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Metadata data stamp:
2018-08-06T21:50:28Z
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 2018-08-06T21:50:28Z
Metadata contact
-
pointOfContact
- organisation Name
CINERGI Metadata catalog
-
- Contact information
-
-
- Address
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- 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:71fefbec-c978-4fd4-a0f6-f0a1a8f1d29e
Metadata record format is ISO19139 XML (MD_Metadata)