Dataset Identification:
Resource Abstract:
- description: A bare-earth topography Digital Elevation Model (DEM) mosaic for the Beaumont and Lower Neches River Units of
Big Thicket National Preserve in Texas, was produced from remotely sensed, geographically referenced elevation measurements
collected on January 11, 15, 17, 18, 19, 21, 22, 23, 25, 26, 27, and 29, 2014 by the U.S. Geological Survey, in cooperation
with the National Park Service - Gulf Coast Network. 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. 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 bare-earth topography Digital Elevation Model (DEM) mosaic for the Beaumont and Lower Neches
River Units of Big Thicket National Preserve in Texas, was produced from remotely sensed, geographically referenced elevation
measurements collected on January 11, 15, 17, 18, 19, 21, 22, 23, 25, 26, 27, and 29, 2014 by the U.S. Geological Survey,
in cooperation with the National Park Service - Gulf Coast Network. 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. 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 Topography-Big Thicket National Preserve: Beaumont and Lower Neches River Units, Texas, 2014.
-
- creation Date
2018-05-21T09:36:13.702808
Resource language:
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Metadata data stamp:
2018-08-07T00:01:40Z
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 2018-08-07T00:01:40Z
Metadata contact
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pointOfContact
- organisation Name
CINERGI Metadata catalog
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- Contact information
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- 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:717a5680-0571-4395-88c7-6be074c8488e
Metadata record format is ISO19139 XML (MD_Metadata)