Dataset Identification:
Resource Abstract:
- description: A first-surface topography digital elevation model (DEM) mosaic for the Turkey Creek Unit of Big Thicket National
Preserve in Texas, was produced from remotely sensed, geographically referenced elevation measurements collected on January
19, 21, 22, 25, 26, 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 first-surface topography digital elevation model (DEM) mosaic for the Turkey Creek Unit of Big Thicket National
Preserve in Texas, was produced from remotely sensed, geographically referenced elevation measurements collected on January
19, 21, 22, 25, 26, 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: Turkey Creek Unit, Texas, 2014.
-
- creation Date
2017-12-13T01:40:19.154421
Resource language:
Processing environment:
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Metadata data stamp:
2018-08-06T23:08:43Z
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 2018-08-06T23:08:43Z
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:d29636d0-4093-4b6d-8993-4b5eebac69aa
Metadata record format is ISO19139 XML (MD_Metadata)