Dataset Identification:
Resource Abstract:
- description: A first-surface topography Digital Elevation Model (DEM) mosaic for the Big Sandy Creek Corridor Unit of Big
Thicket National Preserve in Texas was produced from remotely sensed, geographically referenced elevation measurements collected
on January 19, 21, 22, 29, and 30, 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 density of 1.4 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 first-surface topography Digital Elevation Model (DEM) mosaic for the Big Sandy Creek Corridor Unit
of Big Thicket National Preserve in Texas was produced from remotely sensed, geographically referenced elevation measurements
collected on January 19, 21, 22, 29, and 30, 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 density of 1.4 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 Topography-Big Thicket National Preserve: Big Sandy Creek Corridor Unit, Texas, 2014.
-
- creation Date
2018-05-12T16:10:50.295957
Resource language:
Processing environment:
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Metadata data stamp:
2018-08-06T19:38:11Z
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 2018-08-06T19:38:11Z
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:fb61f377-d33b-4f43-927c-acf807e3c581
Metadata record format is ISO19139 XML (MD_Metadata)