gov.noaa.nmfs.inport:49740 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 2026-04-30T00:00:00 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) 2000 USACE Bathymetric LiDAR: Hawaiian Islands hi2000_usace_hawaii_m1458_metadata 2013-03 publication NOAA/NMFS/EDM 49740 https://www.fisheries.noaa.gov/inport/item/49740 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 acurate 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 propogates 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 JALBCTX Phone: 251-690-3467 The purpose of the survey was to collect and map data from the shoreline to -30m depths. U.S. Army Engineer Joint Airborne Lidar Bathymetry Technical Center of Expertise (JALBCTX) 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://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/mllw/1458/supplemental/hi2000_usace_footprint.kmz This graphic shows the lidar coverage for coastal regions of Oahu, Moloka'i, Lana'i and Hawaii (Big Island) in the state of Hawaii. kmz Hydrographic Survey theme Lidar - partner (no harvest) project InPort otherRestrictions Cite As: OCM Partners, [Date of Access]: 2000 USACE Bathymetric LiDAR: Hawaiian Islands [Data Date Range], https://www.fisheries.noaa.gov/inport/item/49740. 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. These data depict the heights at the time of the survey and are only accurate for that time. otherRestrictions Distribution Liability: Any conclusions drawn from the analysis of this information are not the responsibility of JALBCTX, NOAA, the Office for Coastal Management or its partners. unclassified vector eng; US elevation -158.275 -154.803683 18.90012 21.718898 | Currentness: Ground Condition 2000-11-01 A footprint of this data set may be viewed in Google Earth at: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/mllw/1458/supplemental/hi2000_usace_footprint.kmz false eng false none Zip Zip LAS/LAZ - LASer Zip 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=1458 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/mllw/1458/index.html 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 funcions 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. 2000-12-01T00:00:00 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 NOAA Office for Coastal Management (843) 740-1202 coastal.info@noaa.gov processor