gov.noaa.nmfs.inport:49739
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
WWW:LINK-1.0-http--link
NOAA Office for Coastal Management Website
NOAA Office for Coastal Management Home Page
information
pointOfContact
2021-07-28T00:00:00
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 USACE Bathymetric LiDAR: Hawaiian Islands
hi1999_usace_hawaii_m1457_metadata
2013-03
publication
NOAA/NMFS/EDM
49739
https://www.fisheries.noaa.gov/inport/item/49739
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
Citation URL
Online Resource
download
https://coast.noaa.gov
WWW:LINK-1.0-http--link
Citation URL
Online Resource
download
These data were collected by the SHOALS (Scanning Hydrographic Operational Airborne Lidar Survey) system which consists of an airborne laser transmitter/receiver
capable of measuring 400 soundings per second. The system operates from a deHavilland DHC-6 Twin Otter flying at altitudes between 200 and 400 meters with a
ground speed of about 100 knots. The SHOALS system also includes a ground-based data processing system for calculating accurate horizontal position and water depth.
Lidar is an acronym for LIght Detection And Ranging. The system operates by emitting a pulse of light that travels from an airborne platform to the water surface where a small
portion of the laser energy is backscattered to the airborne receiver. The remaining energy at the water's surface propagates through the water column and reflects off the
sea bottom and back to the airborne detector. The time difference between the surface return and the bottom return corresponds to water depth. The maximum depth
the system is able to sense is related to the complex interaction of radiance of bottom material, incident sun angle and intensity, and the type and quantity of organics
or sediments in the water column. As a rule-of-thumb, the SHOALS system should be capable of sensing bottom to depths equal to two or three times the Secchi depth.
Original contact information:
Contact Org: U.S. Army Corps of Engineers JALBTCX
Phone: 251-690-3467
This data set is an LAZ (compressed LAS) format file containing LIDAR point cloud data.
The purpose of the survey was to investigate the near-shore bathymetry and coral reefs near the west shore of Oahu, the south shore of Moloka'i and all the shores of Maui.
U.S. Army Engineer Joint Airborne Lidar Bathymetry Technical Center of Expertise (JALBTCX)
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
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
asNeeded
https://coast.noaa.gov/htdata/lidar4_z/mllw/data/1457/supplemental/hi1999_usace_footprint.kmz
This graphic shows the lidar coverage for coastal regions of Oahu, Moloka'i and Maui, Hawaii.
kmz
Hydrographic Survey
LAS
LiDAR
Topography/Bathymetry
lidar survey
theme
Hawaii
Maui
Moloka'i
Oahu
USA
place
Lidar - partner (no harvest)
project
InPort
otherRestrictions
Cite As: OCM Partners, [Date of Access]: 1999 USACE Bathymetric LiDAR: Hawaiian Islands [Data Date Range], https://www.fisheries.noaa.gov/inport/item/49739.
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
otherRestrictions
Access Constraints: None | 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. These data depict the heights at the time of the survey and are only accurate for that time. | Distribution Liability: Any conclusions drawn from the analysis of this information are not the responsibility
of JALBTCX, NOAA, the Office for Coastal Management or its partners.
unclassified
NOAA Data Management Plan (DMP)
NOAA/NMFS/EDM
49739
https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ocmp/dmp/pdf/49739.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
-159.80245
-155.969318
20.567028
22.255076
| Currentness: Ground Condition
1999-03-01
1999-04-01
A footprint of this data set may be viewed in Google Earth at:
https://coast.noaa.gov/htdata/lidar4_z/mllw/data/1457/supplemental/hi1999_usace_footprint.kmz
false
eng
false
none
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=1457
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://coast.noaa.gov/htdata/lidar4_z/mllw/data/1457
WWW:LINK-1.0-http--link
Bulk Download
Simple download of data files.
download
dataset
Accuracy
SHOALS has demonstrated capabilities that meet US Army Corps of Engineers Hydrographic Survey accuracy requirements for Class 1 surveys and the International
Hydrographic Organization nautical charting standards for Order 1.
Horizontal Positional Accuracy
+/- 3 meters (1 sigma); Quantitative Value: 3.0 meters, Test that produced the value: Not tested, compiled to meet value (meters) at 1 sigma (1 standard deviation).
Vertical Positional Accuracy
+/- 15 cm (1 sigma); Quantitative Value: 0.15 meters, Test that produced the value: Collected to meet value (meters) at 1 sigma (1 standard deviation)
Completeness Report
N/A
Conceptual Consistency
N/A
The SHOALS airborne system acquires a tremendous volume of raw data during a single mission. The lidar data are unique and require a specialized Data Processing
System (DPS) for post-processing. The DPS main functions 1) import airborne data stored on high density data tape; 2) perform quality control checks on initial depths and
horizontal positions; 3) provide display and edit capabilities; 4) calculate depth and position (XYZ) values for each sounding; and 5) output final positions and depths for each
sounding. DPS possesses a fully automated capability to post-process the data to obtain corrected depth and horizontal positions within the specified system accuracies. This is
accomplished by accurately identifying the surface and bottom returns from the airborne data. Depths are determined by computing the time difference between the arrival of the
surface and bottom returns. Corrections are computed and applied for depth biases associated with light propagation, water level fluctuations, and various inherent system characteristics.
Surface waves are modeled and removed so that depths can be referenced to a common mean water surface. Applying tidal corrections then produces a depth reference to a known water level
datum. A manual processing capability also allows evaluation of anomalous data by providing display and edit functions of sounding data and system parameters. Video
imagery of the survey area permits visual scrutiny of the area to aid the hydrographer in deciding whether to exclude suspect data from further processing. Output from
the DPS is a digital data set of XYZ (positions/depths) for each laser sounding that is compatible with most most GIS and other contouring and mapping systems.
1999-12-01T00:00:00
The NOAA Office for Coastal Management (OCM) received topographic files in ASCII format. The files contained
bathymetric depth measurements. Some sections of the data were received in NAD27 Hawaii State Plane (various zones), other sections
were received in NAD27 UTM Zones 4 and 5. The data were vertically referenced to MLLW (feet or meters). OCM performed the following processing for
data storage and Digital Coast provisioning purposes:
1. The topographic las files were converted from Projected coordinates (State Plane or UTM) to Geographic coordinates.
2. If the vertical units were feet they were converted to meters.
3. The data were converted from ASCII to LAS V1.2
4. All points were classified to Class 11 (Bathymetry).
2012-01-01T00:00:00
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:
2024-03-01T10:04:18
NOAA Office for Coastal Management
coastal.info@noaa.gov
processor