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Metadata Identifier: gov.noaa.csc.maps:2007_FDEM_Cstl_Jefferson_m555
MD_DataIdentification
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2007 Florida Division of Emergency Management (FDEM) Lidar Project: Coastal
Jefferson County
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This Light Detection and Ranging (LiDAR) LAS dataset is a topographic survey
conducted for a coalition of GIS practitioners, including the Florida Division of
Emergency Management (FDEM), Florida Water Management Districts, Florida Fish and
Wildlife Conservation Commission, Florida Department of Environmental Protection,
Army Corps of Engineers Jacksonville District, and other state and federal agencies.
The goal for this project is to use the LiDAR data as new elevation inputs for updated
SLOSH data grids. The ultimate result is the update of the Regional Hurricane Evacuation
Studies (RHES) for the state. The State of Florida Division of Emergency Management
LiDAR Survey was collected under the guidance of a Professional Mapper/Surveyor. Data
were collected for 185 square miles in the coastal (southern) part of Jefferson County,
Florida from July 18 - 20, 2007. This is a classified lidar data set. The data are
classified: 1 = Unclassified, 2 = Ground (Bare Earth), 7 = Noise and 9 = Water. The
FDEM Baseline Specifications required a maximum post spacing of 4 feet, however, the
PDS (Program and Data Solutions) team required a much higher point density of its
subcontractors in order to increase the probability of penetrating dense foliage during
the mandated summer acquisition; with nominal post spacing of 0.7 meters per flight
line and 50% sidelap between flight lines, the average point density is 4 points per
square meter.
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SV_Identification
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2007 Florida Division of Emergency Management (FDEM) Lidar Project: Coastal Jefferson
County
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Lidar |
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Lidar Final Report |
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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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Citation URL |
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ftp://ftp.csc.noaa.gov/pub/crs/beachmap/qa_docs/fl/fdem/jefferson/Jefferson_County_FL_LiDAR_Survey_Report.pdf |
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Andrew Lucero |
Sanborn Map Company |
Sr. Project Manager |
alucero@sanborn.com |
processor |
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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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Florida DEM |
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gis@dca.state.fl.us |
pointOfContact |
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Florida Division of Emergency Management (FDEM) |
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originator |
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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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SANBORN MAP COMPANY |
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originator |
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ftp://ftp.csc.noaa.gov/pub/crs/beachmap/qa_docs/fl/fdem/jefferson/Jefferson_County_FL_LiDAR_Survey_Report.pdf |
Lidar Final Report |
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information |
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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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-84.084223 |
-83.829313 |
30.374197 |
30.081871 |
2007-07-18 |
2007-07-20 |
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2007-07-18 |
2007-07-20 |
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-84.084223 |
-83.829313 |
30.374197 |
30.081871 |
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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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Lidar Final Report |
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crossReference |
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Lidar |
2008-05-01 |
Source Contribution: LiDAR dataset was used to create intensity stereopairs
for 3D breakline compilation and for contour generation.Source Type: online
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2008-01-01T00:00:00 |
The ABGPS, IMU, and raw Optech ALTM 2050 LiDAR data are integrated
into the REALM Survey Suite OPTECH post processor software. The resultant file is
in a LAS binary file format. The LAS file version 1.1 formats can be easily transferred
from one file format to another. It is a binary file format that maintains information
specific to the LiDAR data (return#, intensity value, xyz, etc.). The resultant points
are produced in the geodetic coordinates referenced to the NAD83 horizontal datum
and GRS80 vertical datum. The date and time for each flight line can be determined
using the Julian date and time. The Julian date is a continuous count of days and
fractions since noon Universal Time on January 1, 4713 BCE on the Julian calendar.
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2008-01-01T00:00:00 |
The unedited data are classified to facilitate the application of
the appropriate feature extraction filters. A combination of proprietary filters are
applied as appropriate for the production of bare earth digital terrain models (dtms).
Interactive editing methods are applied to those areas where it is inappropriate or
impossible to use the feature extraction filters, based upon the design criteria and/or
limitations of the relevant filters. These same feature extraction filters are used
to produce elevation height surfaces. The LiDAR mass points were delivered in American
Society for Photogrammetry and Remote Sensing LAS 1.1 format. The header file for
each dataset is complete as define by the LAS 1.1 specification. In addition the following
fields are included: Flight Date Julian, Year, and Class. The LAS files do not include
overlap. The data was classified as follows: Class 1 = Unclassified. This class includes
vegetation, buildings, noise etc. Class 2 = Ground Class 7 = Noise Class 9 = Water
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2008-01-01T00:00:00 |
Conversion from Geodetic coordinates, NAD83 into State Plane coordinates
(U.S. Survey Feet) NAD83 HARN and conversion from ellipsoid heights (meters) into
orthometric heights (U.S. Survey Feet).
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2010-10-01T00:00:00 |
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 State Plane Florida North 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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2011-07-12T00:00:00 |
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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