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Metadata Identifier: gov.noaa.csc.maps:2001_TX_Harris_m102
MD_DataIdentification
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2001 Harris County, Texas Lidar |
This data set was received by the NOAA Coastal Services Center from the Texas
Natural Resources Information System. The data was collected in October of 2001 by
Terrapoint USA, Inc. using an Airborne LIDAR Topographic Mapping System (ALTMS). Flight
altitude was approximately 915 meters, creating a data swath of approximately 550
meters. The surface elevation value accuracy is better than 15 centimeters. The lidar
points are unclassified.
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SV_Identification
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2001 Harris County, Texas Lidar |
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| 2 |
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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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resourceProvider |
http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:crs:EPSG::4269 |
| 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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| 1 |
EPSG Registry |
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European Petroleum Survey Group |
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publisher |
http://www.epsg-registry.org/ |
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Harris County Flood Control District |
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www.hcfcd.org |
pointOfContact |
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Harris County Flood Control District (HCFCD) |
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originator |
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| 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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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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Terrapoint USA, Inc. |
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Peggy.Cobb@terrapoint.com |
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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-95.986334 |
-94.888765 |
30.186647 |
29.483833 |
2001-10-07 |
2001-11-05 |
| 1 |
|
-95.986334 |
-94.888765 |
30.186647 |
29.483833 |
| 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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| 1 |
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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2001-01-01T00:00:00 |
The lidar data was collected by Terrapoint USA, Inc. for the Harris
County Flood Control District. The data was collected in October of 2001 using an
Airborne LIDAR Topographic Mapping System (ALTMS). Flight altitude was approximately
915 meters, creating a data swath of approximately 550 meters.
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| 1 |
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2008-11-03T00:00:00 |
The NOAA Coastal Services Center (CSC) received the files in ASCII
format. The data were in Texas State Plane Projection ADSZone 5401 (Texas South Central),
NAVD88 vertical datum and the vertical units of measure were feet. CSC performed the
following processing to the data to make it available within Digital Coast: 1. The
data were converted from Texas State Plane East, ADSZone 5401 (Texas South Central)
coordinates to geographic coordinates. 2. The data were converted from NAVD88 (orthometric)
heights to GRS80 (ellipsoid) heights using Geoid99. 3. The vertical unit of measure
for the data was converted from feet to meters. 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 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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