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Metadata Identifier: gov.noaa.csc.maps:2001_USGS_ATM_m525
MD_DataIdentification
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2001 USGS/NASA Airborne Topographic Mapper (ATM) Lidar: Coastal Alabama,
Florida, Louisiana, Mississippi, Texas
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This is a non-bare earth data set. ASCII xyz point cloud data were produced
from remotely sensed, geographically referenced elevation measurements cooperatively
by the U.S. Geological Survey (USGS) and National Aeronautics and Space Administration
(NASA) along the coasts of Alabama, Florida (Panhandle), Louisiana, Mississippi and
Texas in 2001. Dates of collection are: 1. Alabama 20011002-20011004, 20011007-20011010
2. Florida 20011002 3. Louisiana 20010909-20010910 4. Mississippi 20010909-20010910
5. Texas 20011012-20011013 Elevation measurements were collected over the area using
the NASA Airborne Topographic Mapper (ATM), a scanning Lidar system that measures
high-resolution topography of the land surface. The ATM system is deployed on a Twin-Otter
or P-3 Orion aircraft and incorporates a green-wavelength laser operating at pulse
rates of 2 to 10 kilohertz. Measurements from the laser ranging device are coupled
with data acquired from internal navigation system (INS) attitude sensors and differentially-corrected
global positioning system (GPS) receivers to measure topography of the surface at
accuracies of 10 to 20 centimeters.
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SV_Identification
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2001 USGS/NASA Airborne Topographic Mapper (ATM) Lidar: Coastal Alabama, Florida,
Louisiana, Mississippi, Texas
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Basis and methods of NASA Airborne Topographic Mapper lidar surveys for coastal studies |
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None |
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North American Datum 1983 |
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Small footprint, waveform-resolving Lidar estimation of submerged and subcanopy topography
in coastal environments
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International Journal of Remote Sensing |
Volume 30, Issue 4, p. 861-878 |
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Journal of Coastal Research |
18(1), p. 1-13 |
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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 |
Jacobs Technology, U.S. Geological Survey, FISC, St. Petersburg, FL |
Computer Scientist |
anayegandhi@usgs.gov |
processor |
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Amar Nayegandhi |
Jacobs Technology, U.S. Geological Survey, St. Petersburg Coastal and Marine Science
Center, St. Petersburg, FL
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Computer Scientist |
anayegandhi@usgs.gov |
pointOfContact |
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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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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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DOI/USGS > United States Geological Survey, Department of 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/ |
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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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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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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 |
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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 |
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Ellipsoid in Meters |
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urn:ogc:def:crs:EPSG::4269 |
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Bounding Box |
Temporal Extent |
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-97.141632 |
-84.333334 |
30.402837 |
27.716485 |
2001-09-09 |
2001-10-13 |
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-97.141632 |
-84.333334 |
30.402837 |
27.716485 |
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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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NAD83 |
urn:ogc:def:crs:EPSG::4269 |
North American Datum 1983 |
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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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Small footprint, waveform-resolving Lidar estimation of submerged and subcanopy topography
in coastal environments
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crossReference |
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2009-08-12T00:00:00 |
The data are collected using a twin-otter aircraft. The NASA Airborne
Topographic Mapper (ATM) laser scanner collects the data using a green raster scanning
laser. The data are stored on hard drives and archived at the U.S. Geological Survey,
FISC office in St. Petersburg, FL, 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 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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2009-12-01T00:00:00 |
The NOAA Coastal Services Center (CSC) received the 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 Zones 14, 15, 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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