gov.noaa.nmfs.inport:48161
eng
UTF8
dataset
Office for Coastal Management
resourceProvider
Office for Coastal Management
2234 South Hobson Avenue
Charleston
SC
29405-2413
https://www.coast.noaa.gov/
WWW:LINK-1.0-http--link
Office for Coastal Management Website
Website listed for Office for Coastal Management
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)
NAD83(2011)
2008-11-12
publication
European Petroleum Survey Group
https://apps.epsg.org/api/v1/CoordRefSystem/6318/export/?format=gml
urn:ogc:def:crs:EPSG:6318
6.18.3
North American Vertical Datum of 1988 (NAVD88) (GEOID18) meters
North American Vertical Datum of 1988 (NAVD88) (GEOID18) meters
https://apps.epsg.org/api/v1/VerticalCoordRefSystem/5703/?api_key=gml
North American Vertical Datum of 1988 (NAVD88) (GEOID18) meters
Link to Geographic Markup Language (GML) description of reference system.
information
resourceProvider
European Petroleum Survey Group
https://www.epsg.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.
search
publisher
vertical
OGP
2006-11-28
false
urn:ogc:def:cs:EPSG::6499
Vertical CS. Axis: height (H). Orientation: up. UoM: meter.
Used in vertical coordinate reference systems.
urn:ogc:def:axis:EPSG::114
H
up
urn:ogc:def:crs:EPSG::5703
1999 Post Hurricane Floyd NOAA/USGS/NASA Airborne LiDAR Assessment of Coastal Erosion (ALACE) Project for the US Coastline
atm1999_post_floyd_m61_metadata
2000-01-01
publication
NOAA/NMFS/EDM
48161
https://www.fisheries.noaa.gov/inport/item/48161
WWW:LINK-1.0-http--link
Full Metadata Record
View the complete metadata record on InPort for more information about this dataset.
information
https://coast.noaa.gov/dataviewer
WWW:LINK-1.0-http--link
Data Access Viewer
Allows custom download of data.
download
This data set includes data collected September 18, 1999 following Hurricane Floyd landfall in North Carolina. The
data covers the coastline starting in South Carolina and extended slightly into Virginia.
Laser beach mapping uses a pulsed laser ranging system mounted onboard an aircraft to measure ground
elevation and coastal topography. The laser emits laser beams at high frequency and is directed downward at the
earth's surface through a port 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 aircraft travels over the beach at approximately 60 meters per second while surveying from
the low water line to the landward base of the sand dunes.
Original contact information:
Contact Org: NOAA Office for Coastal Management
Phone: 843-740-1202
Email: coastal.info@noaa.gov
This data set is an LAZ (compressed LAS) format file containing LIDAR point cloud data.
This data was collected as part of an effort to map beach topography and assess beach change along the US coastline.
Airborne Topographic Mapper LIDAR data were collected in partnership with the National Oceanic and Atmospheric Administration (NOAA)
Office for Coastal Management, the NASA Wallops Flight Facility, the U. S. Geological Survey (USGS) Center for Coastal and Regional
Marine Geology, and the NOAA Aircraft Operations Center.
The custom download may be cited as National Oceanic and Atmospheric Administration (NOAA) Digital Coast Data Access Viewer. Charleston, SC: NOAA Office for Coastal Management. Accessed Mar 01, 2024 at https://coast.noaa.gov/dataviewer.
completed
Office for Coastal Management
2234 South Hobson Avenue
Charleston
SC
29405-2413
https://www.coast.noaa.gov/
WWW:LINK-1.0-http--link
Office for Coastal Management Website
Website listed for Office for Coastal Management
information
pointOfContact
Office for Coastal Management
2234 South Hobson Avenue
Charleston
SC
29405-2413
https://www.coast.noaa.gov/
WWW:LINK-1.0-http--link
Office for Coastal Management Website
Website listed for Office for Coastal Management
information
custodian
notPlanned
https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/61/supplemental/post_floyd_m61_area.kmz
KMZ showing the area of data coverage.
kmz
EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION > TOPOGRAPHICAL RELIEF MAPS
EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > SEAFLOOR TOPOGRAPHY
EARTH SCIENCE > OCEANS > COASTAL PROCESSES > COASTAL ELEVATION
theme
Global Change Master Directory (GCMD) Science Keywords
17.0
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NORTH CAROLINA
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > SOUTH CAROLINA
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > VIRGINIA
place
Global Change Master Directory (GCMD) Location Keywords
17.0
beach
erosion
theme
DOC/NOAA/NOS/OCM > Office of Coastal Management, National Ocean Service, NOAA, U.S. Department of Commerce
dataCentre
Global Change Master Directory (GCMD) Data Center Keywords
2017-04-24
publication
8.5
Lidar
project
InPort
otherRestrictions
Cite As: Office for Coastal Management, [Date of Access]: 1999 Post Hurricane Floyd NOAA/USGS/NASA Airborne LiDAR Assessment of Coastal Erosion (ALACE) Project for the US Coastline [Data Date Range], https://www.fisheries.noaa.gov/inport/item/48161.
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: This data was collected for the purposes of research. Any conclusions drawn from analysis of this information are not the responsibility of NOAA or the Office for Coastal Management. This data is likely to contain returns from the water surface and vegetation. No processing has been done to remove returns from water or vegetation. 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. Noise points have not been removed or identified in this data set.
otherRestrictions
Distribution Liability: This data was collected for the purposes of research. Any conclusions drawn from analysis of this information are not the responsibility
of NOAA, the Office for Coastal Management, or its partners.
unclassified
NOAA Data Management Plan (DMP)
NOAA/NMFS/EDM
48161
https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ocm/dmp/pdf/48161.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
-79.09224
-75.04577
33.50705
38.82451
| Currentness: Ground Condition
1999-09-18
| Currentness: Ground Condition
1999-10-01
This data set was collected with a LIDAR (LIght Detection And Ranging) instrument designed and developed by the Observational
Sciences Branch (OSB) of NASA at the Wallops Flight Facility in Virginia. The instrument, originally designed for mapping ice sheets
in Greenland, is called the Airborne Topographic Mapper or ATM. The ATM II (the latest version), operates with a Spectra Physics
laser transmitter, which provides a 7 nanoseconds long, 250 microjoules pulse at a frequency-doubled wavelength of 523 nanometers
in the blue-green spectral region. The laser transmitter can function at pulse rates from 2 to 10 kilohertz (kHz). The laser system
with a separate cooling unit weighs approximately 45 kilograms (kg) and requires approximately 15 amperes of power at 115 volts.
The transmitted laser pulse is reflected to the surface of the earth with the aid of a small folding mirror mounted on the back of a
secondary mirror of a rotating scan mirror assembly mounted directly in front of the telescope. The scan mirror, which is rotated at 20
hertz, is comprised of a section of round aluminum stock, machined to a specific off-nadir angle. A scan mirror with the off-nadir
angle of 15 degrees was utilized, producing an elliptical scan pattern with a swath width equal to 50 percent of the approximately
700-meter aircraft altitude. The reflected laser pulse is transmitted to a photo-multiplier assembly that consists of a lens, a
narrow bandpass filter, and a single photomultiplier tube.
Note: The Spatial Reference section of this document may lack fully FGDC-compliant information regarding projection parameters
(i.e., Central meridian, false Northing, etc.). The State Plane or UTM Zone will be supplied, and the corresponding parameters can be
found in Appendix C of: Snyder, John, 1987, Map Projections, a Working Manual (U.S. Geological Survey Professional Paper 1395):
Washington, U.S. Government Printing Office.
Zip
Zip
LAS/LAZ - LASer
Zip
Office for Coastal Management
2234 South Hobson Avenue
Charleston
SC
29405-2413
https://www.coast.noaa.gov/
WWW:LINK-1.0-http--link
Office for Coastal Management Website
Website listed for Office for Coastal Management
information
distributor
https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=61
WWW:LINK-1.0-http--link
custom
Custom download allowing user to select projection, datum, format, etc.
download
https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/61/
WWW:LINK-1.0-http--link
https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/61/
Download directory with data in NAD83 Geographic coordinates, NAVD88 (Geoid12b) vertically, LAZ format
download
dataset
Accuracy
Raw elevation measurements have been determined to be vertically accurate to within 15 cm. Processing steps (datum conversion,
projection, grid interpolation, etc.) introduce additional error factors which have not been tested at the time of this publication.
Horizontal Positional Accuracy
The ATM LIDAR elevation points are known to be horizontally accurate to +/- 0.8 meters at an aircraft altitude of 700 meters.
Vertical Positional Accuracy
The ATM LIDAR elevation measurements have been found to be within +/- 15 centimeters of each other in successive and overlapping
passes of the same area. In comparisons of LIDAR data for a small geographic region with various ground surveys the differences
are between +/- 15 to 20 centimeters. The accuracy of the majority of the data is estimated to be consistent with the above
stated results. At this time, there has been no large scale verification of the data.
Completeness Report
All elevation data points that appeared to be within a reasonable vertical range were retained, and other points were thrown away.
This filtering process was performed 'by eye'.
Conceptual Consistency
Not applicable
Data collected and processed by NASA into Qfit format and delivered to NOAA. Converted to LAS 1.2 by NOAA.
Data collected on September 18, 1999 were converted from the NASA qfit format to LAS 1.2 using NOAA custom code. NOAA also received the October 1, 1999 data in Virginia and Maryland in 2017. This data had been converted to qfit using Global Mapper. Noise points were classified using LAStools lasnoise and by setting all points below -60 meters (ellipsoid height) to noise (class 7). All other points are class 0.
2017-01-01T00:00:00
Office for Coastal Management
processor
Lidar data from NASA
NASA
originator
The vertical values in this data set have been converted to reference North American Vertical Datum of 1988 (NAVD88) (GEOID18) meters, using the GEOID18 grids provided by the National Geodetic Survey.
Any datum and projection transformations were then done with the Office for Coastal Management 'datum_shift' program. Compression to an LAZ file was done with the LAStools 'laszip' program and can be unzipped with the same free program (laszip.org)
Processing notes:
2024-03-01T08:12:05
NOAA Office for Coastal Management
coastal.info@noaa.gov
processor