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Metadata Identifier: gov.noaa.csc.maps:2007_USACE_Huron_m550
MD_DataIdentification
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2007 US Army Corps of Engineers (USACE) National Coastal Mapping Program
(NCMP) Topobathy Lidar - Michigan (Lake Huron shoreline)
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This is a bare earth data set. The data contained in these files contain hydrographic
and topographic data collected by the CHARTS system along the Lake Huron coast of
Michigan from August 25 - September 26, 2007. The data were collected and processed
in geographic coordinates and ellipsoid heights. The positions were relative to NAD83
in decimal degrees of longitude and latitude. The heights were converted from ellipsoid
to orthometric heights (NAVD88) using the Geoid03 model with the results in meters.
For data storage and provisioning purposes, the NOAA Coastal Services Center converted
the data from NAVD88 heights to ellipsoid heights using GEOID03. CHARTS integrates
topographic and bathymetric lidar sensors, a digital camera, and a hyperspectral scanner
on a single remote sensing platform for use in coastal mapping and charting activities.
Data coverage generally extends along the coastline from the waterline inland 500
meters (topography) and offshore 1,000 meters or to laser extinction (bathymetry).
The topographic lidar sensor has a pulse repetition rate of 9 kHz at 1064 nm (near-infrared
wavelength). The bathymetric lidar sensor has a pulse repetition rate of 1 kHz at
532 nm (green wavelength). Native lidar data is not generally in a format accessible
to most Geographical Information Systems (GIS). Specialized in-house and commercial
software packages are used to process the native lidar data into 3-dimensional positions
that can be imported into GIS software for visualization and further analysis.
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SV_Identification
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2007 US Army Corps of Engineers (USACE) National Coastal Mapping Program (NCMP) Topobathy
Lidar - Michigan (Lake Huron shoreline)
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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 |
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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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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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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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JALBTCX (originator) |
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US Army Corps of Engineers (USACE) Joint Airborne Lidar Bathymetry Technical Center
of eXpertise (JALBTCX)
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Data Production Manager |
JALBTCX@usace.army.mil |
originator |
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JALBTCX (pointOfContact) |
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US Army Corps of Engineers (USACE) Joint Airborne Lidar Bathymetry Technical Center
of eXpertise (JALBTCX)
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Data Production Manager |
JALBTCX@usace.army.mil |
pointOfContact |
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JALBTCX (processor) |
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US Army Corps of Engineers (USACE) Joint Airborne Lidar Bathymetry Technical Center
of eXpertise (JALBTCX)
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Data Production Manager |
JALBTCX@usace.army.mil |
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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-84.7739147 |
-82.3838368 |
46.0908548 |
42.9801228 |
2007-08-25 |
2007-09-26 |
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-84.7739147 |
-82.3838368 |
46.0908548 |
42.9801228 |
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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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These data were collected using the CHARTS surveys system. It is owned
by the Naval Oceanographic Office and operated through contract. The system collects
topographic lidar data at 20 kHz and hydrographic data at 3 kHz. The system also collects
RGB imagery at 1Hz. A CASI-1500 hyperspectral line scanner is integrated with the
system as well. Aircraft position, velocity and acceleration information are collected
through a combination of Novatel and POS A/V equipment. Raw data are collected and
transferred to the office for downloading and processing in SHOALS GCS software. GPS
data are processed using POSPac software and the results are combined with the lidar
data to produce 3-D positions for each lidar shot. These data are edited using Fledermaus
software where anomalous data are removed from the dataset. The data are converted
from ellipsoid to orthometric heights, based on the GEOID03 model, within the chartsLAS
program.
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2010-11-01T00:00:00 |
The NOAA Coastal Services Center (CSC) received unclassified files
in las format. The files contained LiDAR intensity and elevation measurements. CSC
performed the following processing on the data for data storage and Digital Coast
provisioning: 1. The data were bare-earth classified using MARS Explorer 6.1 software.
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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2011-05-03T00:00:00 |
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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