Dataset Identification:
Resource Abstract:
- description: A first-surface topography Digital Elevation Model (DEM) mosaic for the Cape Cod National Seashore was produced
from remotely sensed, geographically referenced elevation measurements acquired cooperatively by the U.S. Geological Survey
(USGS) and the National Park Service (NPS). Elevation measurements were collected over Cape Cod National Seashore using the
first-generation National Aeronautics and Space Administration (NASA) Experimental Advanced Airborne Research Lidar (EAARL),
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 60 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 2-3 meters.
The EAARL, developed originally by NASA at Wallops Flight Facility in Virginia, measures ground elevation with a vertical
resolution of 3 centimeters. A sampling rate of 3 kilohertz or higher results in an extremely dense spatial elevation dataset.
Over 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 Cape Cod National Seashore was produced from remotely sensed, geographically
referenced elevation measurements acquired cooperatively by the U.S. Geological Survey (USGS) and the National Park Service
(NPS). Elevation measurements were collected over Cape Cod National Seashore using the first-generation National Aeronautics
and Space Administration (NASA) Experimental Advanced Airborne Research Lidar (EAARL), 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 60 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 2-3 meters. The EAARL, developed
originally by NASA at Wallops Flight Facility in Virginia, measures ground elevation with a vertical resolution of 3 centimeters.
A sampling rate of 3 kilohertz or higher results in an extremely dense spatial elevation dataset. Over 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 Coastal Topography--Cape Cod National Seashore, Massachusetts, 2002: First Surface.
-
- creation Date
2017-12-11T21:46:17.617656
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Metadata data stamp:
2018-08-06T21:15:29Z
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 2018-08-06T21:15:29Z
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:235679ab-91b7-43c0-b35d-495ff43d7e32
Metadata record format is ISO19139 XML (MD_Metadata)