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Metadata Identifier: gov.noaa.csc.maps:2007_USGS_NorthenGulf_m522
MD_DataIdentification
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2007 USGS/NPS/NASA Experimental Advanced Airborne Research Lidar (EAARL):
Northern Gulf of Mexico Barrier Islands
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A bare earth elevation map (also known as a Digital Elevation Model, or DEM)
of the northern Gulf of Mexico barrier islands and Naval Live Oaks was produced from
remotely sensed, geographically referenced elevation measurements cooperatively by
the U.S. Geological Survey (USGS), the National Park Service (NPS), and the National
Aeronautics and Space Administration (NASA). This data set provides the those bare
earth elevation measurements of the barrier islands in the following counties: St.
Bernard in LA, Harrison and Jackson in MS, Mobile and Baldwin in AL, and Escambia
and Santa Rosa in FL. 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 surveyed easily within a 3- to 4-hour mission. When subsequent
elevation maps for an area are analyzed, they provide managers with 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): Northern
Gulf of Mexico Barrier Islands
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| 1 |
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Basis and methods of NASA Airborne Topographic Mapper lidar surveys for coastal studies |
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| 1 |
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Coastal impacts of the 2004 hurricanes measured with airborne lidar; initial results |
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None |
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| 1 |
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North American Datum 1983 |
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| 1 |
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Small footprint, waveform-resolving lidar estimation of submerged and subcanopy topography
in coastal environments
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| 1 |
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International Journal of Remote Sensing |
30 (4), p. 861-878 |
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| 1 |
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Journal of Coastal Research |
18 (1), p. 1-13 |
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| 1 |
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Shore and Beach |
73 (2-3), p. 10-14 |
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resourceProvider |
http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:crs:EPSG::4269 |
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Amar Nayegandhi or John Brock at USGS |
Jacobs Technology, contracted to USGS |
Computer Scientist |
anayegandhi@usgs.gov jbrock@usgs.gov |
pointOfContact |
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Amar Nayegandhi |
Jacobs Technology, U. S. Geological Survey, FISC St. Petersburg |
Computer Scientist |
anayegandhi@usgs.gov |
processor |
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Brock, J.C., Wright, C.W., Sallenger, A.H., Krabill, W.B., and Swift, R.N. |
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originator |
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Coastal Research and Education Foundation, Inc. |
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publisher |
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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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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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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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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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| 1 |
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DOI/NPS > National Park Service, U.S. Department of the Interior |
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originator |
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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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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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National Aeronautics and Space Administration (NASA) |
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originator |
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Nayegandhi, A., Brock, J.C., Wright, C.W |
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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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Sallenger, A.H., Wright, C.W., and Lillycrop, J. |
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originator |
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| 1 |
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Taylor and Francis |
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publisher |
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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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-89.203490 |
-87.083264 |
30.389948 |
29.762884 |
2007-06-27 |
2007-06-30 |
| 1 |
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-89.203490 |
-87.083264 |
30.389948 |
29.762884 |
| 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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Basis and methods of NASA Airborne Topographic Mapper lidar surveys for coastal studies |
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crossReference |
| 1 |
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Coastal impacts of the 2004 hurricanes measured with airborne lidar; initial results |
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crossReference |
| 1 |
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Small footprint, waveform-resolving lidar estimation of submerged and subcanopy topography
in coastal environments
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crossReference |
| 1 |
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2007-01-01T00:00:00 |
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 nm) 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 and the NASA office at Wallops Flight Facility. The
navigational data are processed at Wallops Flight Facility. The navigational and unprocessed
data are then downloaded into the Advanced 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 (geoTIFFS).
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2009-11-01T00:00:00 |
The NOAA Coastal Services Center (CSC) received files in LAS format.
The files contained LiDAR intensity and elevation measurements. CSC performed the
following processing on the data to make it available within Digital Coast: 1. The
data were converted from UTM, Zone 16 coordinates to geographic coordinates. 2. The
data were converted from NAVD88 heights to ellipsoid heights using Geoid03. 3. The
LAS header fields were sorted by latitude and updated.
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2011-04-27T00:00:00 |
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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