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Metadata Identifier: gov.noaa.csc.maps:2007_USGS_Naval_Live_Oakes_m565
MD_DataIdentification
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2007 USGS/NPS/NASA Experimental Advanced Airborne Research Lidar (EAARL):
Naval Live Oaks Area, FL
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ASCII xyz point cloud data were produced from remotely sensed, geographically
referenced elevation measurements cooperatively by the U.S. Geological Survey (USGS),
the National Park Service (NPS), and National Aeronautics and Space Administration
(NASA). Elevation measurements were collected over the area using the 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
50 meters per second at an elevation of approximately 300 meters. The EAARL, developed
by NASA at Wallops Flight Facility in Virginia, measures ground elevation with a vertical
resolution of 15 centimeters. A sampling rate of 3 kilohertz or higher results in
an extremely dense spatial elevation dataset. Over 100 kilometers of coastline can
be easily surveyed within a 3- to 4-hour mission. When subsequent elevation maps for
an area are analyzed, they provide a useful tool to make management decisions regarding
land development.
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SV_Identification
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2007 USGS/NPS/NASA Experimental Advanced Airborne Research Lidar (EAARL): Naval Live
Oaks Area, FL
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None |
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North American Datum 1983 |
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resourceProvider |
http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:crs:EPSG::4269 |
| 1 |
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Amar Nayegandhi |
Jacobs Technology, U.S. Geological Survey, St. Petersburg Science Center, St. Petersburg,
FL
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Computer Scientist |
anayegandhi@usgs.gov |
processor |
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| 1 |
NOAA CSC (originator) |
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DOC/NOAA/NOS/CSC > Coastal Services Center, National Ocean Service, National Oceanic
and Atmospheric Administration, U.S. Department of Commerce
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csc.info@noaa.gov |
originator |
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| 1 |
NOAA CSC (publisher) |
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DOC/NOAA/NOS/CSC > Coastal Services Center, National Ocean Service, National Oceanic
and Atmospheric Administration, U.S. Department of Commerce
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csc.info@noaa.gov |
publisher |
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| 1 |
NOAA CSC(distributor) |
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DOC/NOAA/NOS/CSC > Coastal Services Center, National Ocean Service, National Oceanic
and Atmospheric Administration, U.S. Department of Commerce
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csc.info@noaa.gov |
distributor |
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| 1 |
NOAA CSC (processor) |
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DOC/NOAA/NOS/CSC > Coastal Services Center, National Ocean Service, National Oceanic
and Atmospheric Administration, U.S. Department of Commerce
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csc.info@noaa.gov |
processor |
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DOI/NPS > National Park Service, U.S. Department of the Interior |
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originator |
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| 1 |
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DOI/USGS > United States Geological Survey, U.S. Department of the Interior |
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originator |
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| 1 |
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David Nagle |
Jacobs Technology, U.S. Geological Survey, St. Petersburg Science Center, St. Petersburg,
FL
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Programmer/Analyst |
dnagle@usgs.gov |
pointOfContact |
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EPSG Registry |
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European Petroleum Survey Group |
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publisher |
http://www.epsg-registry.org/ |
| 1 |
Mike Sutherland(author) |
Mike Sutherland |
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department
of Commerce
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mike.sutherland@noaa.gov |
author |
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| 1 |
Mike Sutherland |
Mike Sutherland |
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department
of Commerce
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mike.sutherland@noaa.gov |
distributor |
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| 1 |
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National Aeronautics and Space Administration (NASA) |
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originator |
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Pamela Grothe |
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department
of Commerce
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processor |
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| 1 |
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http://www.epsg-registry.org/ |
European Petroleum Survey Group Geodetic Parameter Registry |
Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured
dataset of Coordinate Reference Systems and Coordinate Transformations.
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search |
| 1 |
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http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:crs:EPSG::4269 |
NAD83 |
Link to Geographic Markup Language (GML) description of reference system. |
information |
| 1 |
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Ellipsoid in Meters |
| 1 |
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urn:ogc:def:crs:EPSG::4269 |
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Bounding Box |
Temporal Extent |
| 1 |
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-87.166508 |
-87.104073 |
30.389941 |
30.353783 |
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| 1 |
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-87.166508 |
-87.104073 |
30.389941 |
30.353783 |
| 1 |
Lidar Use Limitation |
These data depict the elevations at the time of the survey and are only
accurate for that time. Users should be aware that temporal changes may
have occurred since this data set was collected and some parts of this data may no
longer represent actual surface conditions. Users should not use this data
for critical applications without a full awareness of its limitations. Any conclusions
drawn from analysis of this information are not the responsibility of NOAA
or any of its partners. These data are NOT to be used for navigational purposes.
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Ellipsoid |
Ellipsoid in Meters |
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| 1 |
NAD83 |
urn:ogc:def:crs:EPSG::4269 |
North American Datum 1983 |
| 1 |
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2001-04-02T00:00:00 |
The NOAA Coastal Services Center received the data in LAS format.
The files contained Lidar elevation and intensity measurements. The data were projected
in UTM coordinates (NAD83; Zone 16N) and referenced to the North American Vertical
Datum of 1988 (NAVD88) using the Geoid03 model. The following processes were performed
to make the data available within the Digital Coast: 1. The data were converted from
UTM (NAD83; Zone 16N) to geographic coordinates (NAD83). 2. The data were converted
from NAVD88 (orthometric) heights to GRS80 (ellipsoidal) heights using the Geoid03
model. 3. The data were reclassified to reflect a bare earth surface (class 0 to class
2). 4. The LAS data were sorted by latitude and the headers were updated.
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| 1 |
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2009-07-20T00:00:00 |
The data are collected using a Cessna 310 aircraft. The NASA Experimental
Advanced Airborne Research Lidar (EAARL) laser scanner collects the data using a green
(532-nanometer) raster scanning laser, while a digital camera acquires a visual record
of the flight. The data are stored on hard drives and archived at the U.S. Geological
Survey office in St. Petersburg, Florida and the NASA office at Wallops Flight Facility
in Virginia. The navigational data are processed at Wallops Flight Facility. The navigational
and raw data are then downloaded into the Airborne Lidar Processing System (ALPS).
Data are converted from units of time to x,y,z points for elevation. The derived surface
data can then be converted into raster data. The processing took place from 20070630
through 20090720.
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| 1 |
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2011-04-26T00:00:00 |
The NOAA National Geophysical Data Center (NGDC) received lidar data
files via ftp transfer from the NOAA Coastal Services Center. The data are
currently being served via NOAA CSC Digital Coast at http://www.csc.noaa.gov/digitalcoast/.
The data can be used to re-populate the system. The data are archived in LAS
or LAZ format. The LAS format is an industry standard for LiDAR data developed by
the American Society of Photogrammetry and Remote Sensing (ASPRS); LAZ is a loseless
compressed version of LAS developed by Martin Isenburg (http://www.laszip.org/). The
data are exclusively in geographic coordinates (either NAD83 or ITRF94). The data
are referenced vertically to the ellipsoid (either GRS80 or ITRF94), allowing for
the ability to apply the most up to date geoid model when transforming to orthometric
heights.
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