gov.noaa.nmfs.inport:50099
eng
UTF8
dataset
OCM Partners
resourceProvider
NOAA Office for Coastal Management
(843) 740-1202
2234 South Hobson Ave
Charleston
SC
29405-2413
coastal.info@noaa.gov
https://coast.noaa.gov
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NOAA Office for Coastal Management Website
NOAA Office for Coastal Management Home Page
information
pointOfContact
2024-02-29T00:00:00
ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data
ISO 19115-2:2009(E)
2003 U.S. Geological Survey (USGS) Experimental Advanced Airborne Research Lidar (EAARL): US Virgin Islands (St. John, St. Croix)
usgs2003_usvi_topobathy_m566_metadata
2011
publication
NOAA/NMFS/EDM
50099
https://www.fisheries.noaa.gov/inport/item/50099
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Full Metadata Record
View the complete metadata record on InPort for more information about this dataset.
information
https://coast.noaa.gov
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Citation URL
Online Resource
download
https://coast.noaa.gov/dataviewer
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Citation URL
Online Resource
download
This data set contains topographic and bathymetric lidar data that were collected on April 21, 23, 30, May 2, and June 14, 17 of 2003,
cooperatively by the U.S. Geological Survey (USGS), National Aeronautics and Space Administration (NASA), and National Park Service (NPS).
The data is for part of the U.S. Virgin Islands (island of St. John and a portion of the northern coastline of St. Croix). The bathymetric lidar
data are classified as 11 and the topographic lidar data are classified as 0.
A first surface and submerged topography elevation map (also known as a Digital Elevation Model, or DEM) of a portion of the U.S. Virgin Islands
(island of St. John and a portion of the northern coastline of St. Croix) was produced from remotely sensed, geographically referenced
elevation measurements cooperatively by the U.S. Geological Survey (USGS), National Aeronautics and Space Administration (NASA), and National
Park Service (NPS).
Elevation measurements were collected over the area using the NASA Experimental Advanced Airborne Research Lidar (EAARL), a pulsed-laser
ranging system mounted onboard an aircraft to measure ground elevation, vegetation canopy, and coastal topography. The system uses high
frequency laser beams directed at the Earth's surface through an opening in the bottom of the aircraft's fuselage. The laser system records
the time difference between emission of the laser beam and the reception of the reflected laser signal in the aircraft. The plane travels over
the target area at approximately 50 meters per second at an elevation of approximately 300 meters. The EAARL, developed by NASA at Wallops
Flight Facility in Virginia, measures ground elevation with a vertical resolution of 15 centimeters. A sampling rate of 3 kilohertz or higher
results in an extremely dense spatial elevation dataset. Over 100 kilometers of coastline can be surveyed easily within a 3- to 4-hour mission.
When subsequent elevation maps for an area are analyzed, they provide a useful tool to make management decisions regarding land development.
Original contact information:
Contact Name: Amar Nayegandhi
Contact Org: Jacobs Technology, U.S. Geological Survey, FISC, St. Petersburg, FL
Title: Computer Scientist
Phone: 727-803-8747 (x3026)
Email: anayegandhi@usgs.gov
The purpose of this project was to produce a highly detailed and accurate first surface and submerged topography elevation map of a portion
of the U.S. Virgin Islands.
The U.S. Geological Survey, National Park Service, and National Aeronautics and Space Administration request to be acknowledged as originators
of this data in future products or derivative research.
Acknowledgment of the U.S. Geological Survey, Florida Integrated Science Center, as a data source would be appreciated in products developed from
these data, and such acknowledgment as is standard for citation and legal practices for data source is expected. Sharing of new data layers
developed directly from these data would also be appreciated by the U.S. Geological Survey staff. Users should be aware that comparisons with
other datasets for the same area from other time periods may be inaccurate due to inconsistencies resulting from changes in photo interpretation,
mapping conventions, and digital processes over time. These data are not legal documents and are not to be used as such.
completed
NOAA Office for Coastal Management
(843) 740-1202
2234 South Hobson Ave
Charleston
SC
29405-2413
coastal.info@noaa.gov
https://coast.noaa.gov
WWW:LINK-1.0-http--link
NOAA Office for Coastal Management Website
NOAA Office for Coastal Management Home Page
information
pointOfContact
NOAA Office for Coastal Management
(843) 740-1202
2234 South Hobson Ave
Charleston
SC
29405-2413
coastal.info@noaa.gov
https://coast.noaa.gov
WWW:LINK-1.0-http--link
NOAA Office for Coastal Management Website
NOAA Office for Coastal Management Home Page
information
custodian
notPlanned
ALPS
EAARL
theme
2003
temporal
Lidar - partner (no harvest)
project
InPort
otherRestrictions
Cite As: OCM Partners, [Date of Access]: 2003 U.S. Geological Survey (USGS) Experimental Advanced Airborne Research Lidar (EAARL): US Virgin Islands (St. John, St. Croix) [Data Date Range], https://www.fisheries.noaa.gov/inport/item/50099.
NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.
otherRestrictions
Access Constraints: None
otherRestrictions
Use Constraints: 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.
otherRestrictions
Distribution Liability: Any conclusions drawn from the analysis of this information are not the responsibility of the USGS, the Office for Coastal Management or its partners.
unclassified
Unclassified
None
NOAA Data Management Plan (DMP)
NOAA/NMFS/EDM
50099
https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ocmp/dmp/pdf/50099.pdf
WWW:LINK-1.0-http--link
NOAA Data Management Plan (DMP)
NOAA Data Management Plan for this record on InPort.
information
crossReference
vector
eng; US
elevation
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.2.1350
-64.819269
-64.607852
17.746823
18.373668
| Currentness: Ground Condition
2003-04-21
| Currentness: Ground Condition
2003-04-23
| Currentness: Ground Condition
2003-04-30
| Currentness: Ground Condition
2003-05-02
| Currentness: Ground Condition
2003-06-14
| Currentness: Ground Condition
2003-06-17
Raw Lidar data are not in a format that is generally usable by Park Service resource managers and scientists for scientific analysis.
Converting dense Lidar elevation data into a readily usable format without loss of essential information requires specialized processing.
The U.S. Geological Survey converts raw Lidar data into a GIS-compatible map product to be provided to National Park Service GIS specialists,
managers, and scientists. The primary tool used in the conversion process is Airborne Lidar Processing System (ALPS), a multi-tiered processing
system developed by a USGS-NASA collaborative project. Specialized processing algorithms are used to convert raw waveform Lidar data acquired
by the EAARL to georeferenced spot (x, y, z) returns for "first surface" and "bare earth" topography.
The development of custom software for creating these data products has been supported by the USGS CMG Program's Decision Support for
Coastal Parks, Sanctuaries, and Preserves Project. Processed data products are used by the USGS CMG Program's National Assessments of
Coastal Change Hazards Project to quantify the vulnerability of shorelines to coastal change hazards such as severe storms, sea-level rise,
and shoreline erosion and retreat.
A footprint of this data set may be viewed in Google Earth at:
https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/566/supplemental/2003_USGS_USVI_TopoBathy_Lidar.kmz
false
eng
false
The variables measured by EAARL are distance between aircraft and GPS satellites (m), attitude information (roll, pitch, heading in
degrees), scan angle (degrees), second of the epoch (sec), and 1-ns time-resolved return intensity waveform (digital counts). Z value is
referenced to orthometric elevations derived from National Geodetic Survey Geoid Model, GEOID03.
NOAA Office for Coastal Management
(843) 740-1202
2234 South Hobson Ave
Charleston
SC
29405-2413
coastal.info@noaa.gov
https://coast.noaa.gov
WWW:LINK-1.0-http--link
NOAA Office for Coastal Management Website
NOAA Office for Coastal Management Home Page
information
distributor
https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=566
WWW:LINK-1.0-http--link
Customized Download
Create custom data files by choosing data area, product type, map projection, file format, datum, etc.
download
https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/566/index.html
WWW:LINK-1.0-http--link
Bulk Download
Simple download of data files.
download
dataset
Accuracy
The expected accuracy of the measured variables is as follows: attitude within 0.07 degree, 3 cm nominal ranging accuracy, and vertical
elevation accuracy of +/-15 cm for the topographic surface. Quality checks are built into the data-processing software.
Horizontal Positional Accuracy
Raw elevation measurements have been determined to be within 1-meter horizontal accuracy.
Vertical Positional Accuracy
Elevations of the DEM are vertically consistent with the point elevation data, +/-15 cm.
Completeness Report
Not Provided
Conceptual Consistency
When the data was received by the NOAA Office for Coastal Management, each file contained data located in a 2-km by 2-km tile, where the upper-left
bound can be quickly assessed through the file name. The first 3 numbers in the file name represented the left-most UTM easting coordinate
(e###000) in meters, the next 4 numbers represented the top-most UTM northing coordinate (n####000) in meters, and the last 2 numbers (##)
represented the UTM zone in which the tile is located (for example, fs_e123_n4567_20).
The data are collected using a Cessna 310 aircraft. The NASA Experimental Advanced Airborne Research Lidar (EAARL) laser scanner collects
the data using a green (532-nm) raster scanning laser, while a digital camera acquires a visual record of the flight. The data are stored
on hard drives and archived at the U.S. Geological Survey 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
Airborne 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).
2008-01-01T00:00:00
Metadata imported into ArcCatalog from XML file.
2008-07-29T00:00:00
The NOAA Office for Coastal Management (OCM) received the data in las format. The files contained LiDAR intensity and
elevation measurements. OCM performed the following processing for data storage purposes and Digital Coast provisioning:
1. The data were converted from UTM (Zone 20) WGS84 coordinates to geographic NAD83 coordinates.
2. The bathy data were reclassified from 0 to 11 and the topo data were left at classification 0.
3. The data were converted from ITRF00 ellipsoid heights to GRS80 ellipsoid heights using Geoid03.
4. The data were sorted by latitude and the LAS header files were updated.
2011-02-01T00:00:00
Source Contribution: None | Source Geospatial Form: remote-sensing image | Type of Source Media: Point elevation measurements collected by the EAARL sensor.
EAARL Coastal Topography--St. John, U.S. Virgin Islands 2003: First Surface
2008-01-01
publication
2003-04-21
Source Contribution: None | Source Geospatial Form: remote-sensing image | Type of Source Media: Point elevation measurements collected by the EAARL sensor.
EAARL Submerged Topography--U.S. Virgin Islands 2003
2008-01-01
publication
2003-04-21