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Metadata Identifier: gov.noaa.csc.maps:2007_USACE_CNMI_m561
MD_DataIdentification
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2007 JALBTCX Topographic Lidar: Saipan, CNMI |
These files contain topographic lidar data collected by the CHARTS system
in Saipan, CNMI. This file contains both first and last returns. The data points representing
bare earth have been classified as such using TerraScan. Classification values are:
Class 1: Unclassified Class 2: Ground
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SV_Identification
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2007 CNMI Saipan CHARTS Survey |
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2007 JALBTCX Topographic Lidar: Saipan, CNMI |
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Mean Sea Level depth |
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None |
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World Geodetic System 1984 |
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resourceProvider |
http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:crs:EPSG::4326 |
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Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA),
National Ocean Service (NOS), Coastal Services Center (CSC)
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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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JALBTCX |
Data Production Manager |
shoals-info@sam.usace.army.mil |
processor |
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JALBTCX (comp.) |
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originator |
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Joint Airborne Lidar Bathymetry Technical Center of Expertise (JALBTCX) |
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originator |
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NOAA Coastal Services Center |
Clearinghouse Manager |
clearinghouse@noaa.gov |
pointOfContact |
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NOAA Coastal Services Center |
Clearinghouse Manager |
clearinghouse@noaa.gov |
distributor |
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NOAA Coastal Services Center |
Clearinghouse Manager |
clearinghouse@noaa.gov |
processor |
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NOAA's Ocean Service, Coastal Services Center (CSC) |
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publisher |
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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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pamela.grothe@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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pamela.grothe@noaa.gov |
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::4326 |
WGS 84 |
GML of World Geodetic System 1984 coordinate reference system. |
information |
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http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:crs:EPSG::5715 |
MSL depth |
GML for Vertical CRS in EPGS Registry. |
information |
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urn:ogc:def:crs:EPSG::4326 |
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urn:ogc:def:crs:EPSG::5715 |
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Bounding Box |
Temporal Extent |
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145.689546 |
145.830793 |
15.290357 |
15.091355 |
2007-05-06 |
2007-05-09 |
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2007-05-06 |
2007-05-09 |
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145.689546 |
145.830793 |
15.290357 |
15.091355 |
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Any conclusions drawn from the analysis of this information are not the
responsibility of JALBTCX, the Coastal Services Center, or its partners. Disclaimer
While every effort has been made to ensure that these data are accurate and reliable
within the limits of the current state of the art, NOAA cannot assume liability for
any damages caused by any errors or omissions in the data, nor as a result of the
failure of the data to function on a particular system. NOAA makes no warranty, expressed
or implied, nor does the fact of distribution constitute such a warranty.
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WGS84 |
urn:ogc:def:crs:EPSG::4326 |
World Geodetic System 1984 |
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MSL |
urn:ogc:def:crs:EPSG::5715 |
Mean Sea Level depth |
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2007 CNMI Saipan CHARTS Survey |
2007-01-01 |
Source Contribution: LidarSource Type: hard drive |
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2007-11-14T00:00:00 |
These data were collected using the CHARTS system. It is owned by
the Naval Oceanographic Office (NAVO) and operated through contract. The system collects
topographic lidar data at 20kHz and hydrographic data at 3kHz. 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 edited data are written
to the national grid system 1 km tiles using chartsLAS, a program written by NAVO.
This program reads data from the original binary format files and produces separate
ASCII files for first and last return data. Using a model calculated by NAVO, data
were converted from ellipsoid to Mean Sea Level heights using the program datum_shift,
written by NAVO. The model file Saipan_Adjustment.fin was used for the corrections.
The LAS files output form chartsLAS were read into TerraScan and filters were applied
to classify ground points. Points designated as ground are assigned a classification
value "2" and all other points are assigned the classification value "1" which represents
an unclassified state.
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2010-12-01T00:00:00 |
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 for storage and provisioning purposes within Digital
Coast: 1. The data were converted from UTM coordinates to geographic coordinates (WGS84).
2. The LAS georeferencing information was updated to reflect the tidal vertical datum
Mean Sea Level (MSL). 3. The LAS headers were updated and sorted by latitude.
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2011-05-03T00:00:00 |
The NOAA National Geophysical Data Center (NGDC) received Lidar data
files by ftp. The data received compressed containing LiDAR data from the NOAA Coastal
Services Center. The data are currently being served via Digital Coastl at http://www.csc.noaa.gov/digitalcoast/.
The data can be used to re-populate the system. The data are provided in LAS format.
LAS format is an industry standard for serving LiDAR data. The data are exclusively
in geographic coordinates, however, the datums used vary. Most are NAD 83, however
some are in ITRF. Vertical systems include both ellipsoid (ITRF and NAD 83) and NAVD
88. For NAVD 88 values, Geiod 03 is primarily used; however, data received in NAVD
88 prior to 2003 was processed using Geoid 99.
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