gov.noaa.nmfs.inport:48186 eng UTF8 dataset Office for Coastal Management 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 2024-02-29T00:00:00 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) 2005 Oahu/Maui Lidar Mapping Project hi2005_m24_metadata 2006-10-18 publication NOAA/NMFS/EDM 48186 https://www.fisheries.noaa.gov/inport/item/48186 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 WWW:LINK-1.0-http--link Citation URL Online Resource download https://coast.noaa.gov/dataviewer WWW:LINK-1.0-http--link Citation URL Online Resource download LIDAR data is remotely sensed high-resolution elevation data collected by an airborne collection platform. Using a combination of laser rangefinding, GPS positioning and inertial measurement technologies; LIDAR instruments are able to make highly detailed Digital Elevation Models (DEMs) of the earth's terrain, man-made structures and vegetation. This data was collected over a portion of Maui and Oahu, Hawaii with a Leica ALS-40 Aerial Lidar Sensor. Multiple returns were recorded for each pulse in addition to an intensity value. Original contact information: Contact Org: NOAA Office for Coastal Management Phone: 843-740-1202 Email: coastal.info@noaa.gov The purpose of this mapping project is to create and deliver digital terrain models (DTM), to support the environmental, social, and economic well being of the coast by linking people, information, and technology. The data will support the local Coastal Zone Managers in their decision-making processes. 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 unknown 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 > HAWAII OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > HAWAIIAN ISLANDS > MAUI OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > HAWAIIAN ISLANDS > OAHU place Global Change Master Directory (GCMD) Location Keywords 20.8 Bathymetry/Topography DEM DTM Digital Elevation Model Digital Terrain Model Elevation and derived products Elevation model LIDAR Lidar Point Cloud Surface model theme EDI Thesaurus Hawaii Honolulu Maui Oahu US place Geographic Names Information System 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 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Lidar project InPort otherRestrictions Cite As: Office for Coastal Management, [Date of Access]: 2005 Oahu/Maui Lidar Mapping Project [Data Date Range], https://www.fisheries.noaa.gov/inport/item/48186. 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 analysis of this information are not the responsibility of NOAA or the Office for Coastal Management or its partners. unclassified NOAA Data Management Plan (DMP) NOAA/NMFS/EDM 48186 https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ocm/dmp/pdf/48186.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 -158.138 -156.565 20.769 21.4 | Currentness: Ground Condition 2005-02-20 2005-03-24 The 2003-2005 Hawaii Lidar Data Validation Report may be viewed at: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid12b/24/supplemental/index.html 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=24 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/geoid12b/24/index.html WWW:LINK-1.0-http--link Bulk Download Simple download of data files. download dataset Accuracy 1. Lidar data was collected and processed in accordance with FEMA guidance as published in Appendix A, February, 2002. 2. Lidar data at the interface between the land and ocean was collected (when possible) during periods when tides were predicted to be below mean lower low water based upon NOAA CO-OPS tide predictions for the nearest tidal station. 3. Lidar data accuracy is in accordance with the National Standard for Spatial Accuracy (NSSDA). When compared to 63 GPS static survey points in open non-vegetated areas, at least 95% of the positions have an error less than or equal to 31.8 cm (equivalent to root mean square error of 16.2 cm). Horizontal Positional Accuracy The lidar data fully comply with FEMA guidance as published in Appendix A, February, 2002. Vertical Positional Accuracy The lidar data fully comply with FEMA guidance as published in Appendix A, February, 2002 and National Standard for Spatial Accuracy (NSSDA). When compared to 63 GPS static survey points in open non-vegetated areas, at least 95% of the positions have an error less than or equal to 31.8 cm (equivalent to root mean square error of 16.2 cm). Completeness Measure Cloud Cover: 0 Completeness Report 1. EarthData's proprietary software, Checkedb, for verification against ground survey points. 2. Terrascan, for verification of automated and manual editing and final QC of products. Conceptual Consistency Compliance with the accuracy standard was ensured by the placement of GPS ground control prior to the acquisition of lidar data. The following checks were performed. 1. The ground control and airborne GPS data stream were validated through a fully analytical boresight adjustment. 2. The DTM (Digital Terrain Model) data were checked against the project control. 3. Lidar elevation data was validated through an inspection of edge matching and visual inspection for quality (artifact removal). EarthData has developed a unique method for processing lidar data to identify and remove elevation points falling on vegetation, buildings, and other aboveground structures. The algorithms for filtering data were utilized within EarthData's proprietary software and commercial software written by TerraSolid. This software suite of tools provides efficient processing for small to large-scale, projects and has been incorporated into ISO 9001 compliant production work flows. The following is a step-by-step breakdown of the process. 1. Using the lidar data set provided by EarthData, the technician performs calibrations on the data set. 2. Using the lidar data set provided by EarthData, the technician performed a visual inspection of the data to verify that the flight lines overlap correctly. The technician also verified that there were no voids, and that the data covered the project limits. The technician then selected a series of areas from the data set and inspected them where adjacent flight lines overlapped. These overlapping areas were merged and a process which utilizes 3-D Analyst and EarthData's proprietary software was run to detect and color code the differences in elevation values and profiles. The technician reviewed these plots and located the areas that contained systematic errors or distortions that were introduced by the lidar sensor. 3. Systematic distortions highlighted in step 2 were removed and the data was re-inspected. Corrections and adjustments can involve the application of angular deflection or compensation for curvature of the ground surface that can be introduced by crossing from one type of land cover to another. 4. The lidar data for each flight line was trimmed in batch for the removal of the overlap areas between flight lines. The data was checked against a control network to ensure that vertical requirements were maintained. Conversion to the client-specified datum and projections were then completed. The lidar flight line data sets were then segmented into adjoining tiles for batch processing and data management. 5. The initial batch-processing run removed 95% of points falling on vegetation. The algorithm also removed the points that fell on the edge of hard features such as structures, elevated roadways and bridges. 6. The operator interactively processed the data using lidar editing tools. During this final phase the operator generated a TIN based on a desired thematic layer to evaluate the automated classification performed in step 5. This allowed the operator to quickly re-classify points from one layer to another and recreate the TIN surface to see the effects of edits. Geo-referenced images were toggled on or off to aid the operator in identifying problem areas. The data was also examined with an automated profiling tool to aid the operator in the reclassification. 7. The final DEM was written to an ESRI grid format (.flt). 8. The point cloud data were also delivered in LAS format. 2005-09-02T00:00:00 The NOAA Office for Coastal Management (OCM) received LAS files containing the point cloud elevation data from Earth Data, Inc. OCM performed the following processing on the data to make it available within the Lidar Data Retrieval Tool (LDART): 1. Variable length header records were added to the LAS files to identify projection, datum and sort order. 2. The LAS files were sorted by latitude. 2005-09-27T00:00:00 For data management purposes, the Office for Coastal Management converted the data from NAVD88 elevations to ellipsoid elevations using Geoid 99. 2008-02-01T00:00:00 Source Contribution: EarthData Aviation was contracted by EarthData International to collect ALS-40 Lidar data over the west coast of Maui, Hawaii. The project site was flown on March 16th and 24th of 2005, using aircraft N806CP. Lidar data was captured using an ALS-40 Lidar system, including an inertial measuring unit (IMU) and a dual frequency GPS receiver. Lidar was obtained at an altitude of 762 meters (2,500 feet) above mean terrain, at an average airspeed of 130 knots. Sensor pulse rate was set at 20,000 Hz with a field of view of 25 degrees and a rate of 17 Hz. Average swath width of the collected raw lines is 337 meters. Lidar data was recorded in conjunction with airborne GPS and IMU; the stationary GPS receiver was positioned over a control point located at the airport. Recorded digital data was shipped via external hard drive to the production facility for processing. During airborne data collection, an additional GPS receiver was in constant operation over a published National Geodetic Survey (NGS) control point at Kahului Airport. The control point with designation OGG ARP 2 and PID AA3608, is "A" Order horizontal with Third Order Class II ellipsoid height. During the data acquisition, the receivers collected phase data at an epoch rate of 1 Hz. All GPS phase data was post processed with continuous kinematic survey techniques using "On the Fly" (OTF) integer ambiguity resolution. The GPS data was processed with forward and reverse processing algorithms. An adjustment was made to the ellipsoid height of the published point by Terrasurv to reflect Local Tidal Elevation. The results from each process, using the data collected at the airport, were combined to yield a single fixed integer phase differential solution of the aircraft trajectory. | Source Geospatial Form: Model | Type of Source Media: Firewire Drive Aerial Lidar Acquisition over Maui, HI 2005-03-24 publication 2005-03-16 2005-03-24 Source Contribution: EarthData Aviation was contracted by EarthData International to collect ALS-40 Lidar data over the coastal area of Oahu, Hawaii. The project site was flown on February 20 and March 2, 3, 6, 12, 13 using its aircraft with tail number N806CP. Lidar data was captured using an ALS-40 Lidar system, including an inertial measuring unit (IMU) and a dual frequency GPS receiver. Lidar was obtained at an altitude of 762meters (2,500 feet) above mean terrain, at an average airspeed of 130 knots. Sensor pulse rate was set at 20,000 Hz with a field of view of 25 degrees and a scan rate of 17 Hz. Average swath width of the collected raw lines is 338 meters. Point spacing was 2 meters. Lidar data was recorded in conjunction with airborne GPS and IMU; the stationary GPS receiver was positioned over a control point located at the airport. Recorded digital data was shipped via external hard drive to the production facility for processing. During airborne data collection, an additional GPS receiver was in constant operation over a published National Geodetic Survey (NGS) control point at Honolulu Airport. The coordinate value for temporary control point "PHNL" was determined by a network adjustment to CORS stations EHN1 and HNLC, both of which were tied to the project control network. During the data acquisition, the receivers collected phase data at an epoch rate of 1 Hz. All GPS phase data was post processed with continuous kinematic survey techniques using "On the Fly" (OTF) integer ambiguity resolution. The GPS data was processed with forward and reverse processing algorithms. An adjustment was made to the ellipsoid height of the published point by Terrasurv to reflect Local Tidal Elevation. The results from each process, using the data collected at the airport, were combined to yield a single fixed integer phase differential solution of the aircraft trajectory. | Source Geospatial Form: Model | Type of Source Media: Firewire Drive Aerial Lidar Acquisition over Oahu, HI 2005-03-13 publication 2005-02-20 2005-03-13 Source Contribution: Kevin Chappell, of Terrasurv and under contract to EarthData International established 6 ground control points. The points were surveyed using GPS for both vertical and horizontal coordinate values. The horizontal datum used was the North American Datum of 1983 (Pacific Plate Fixed Realization, epoch 2002.0). The vertical datum used was a Local Tidal Datum. | Source Geospatial Form: Diagram | Type of Source Media: Electronic mail system Report of Survey - Maui, Hawaii 2003-11-06 publication 2003-11-06 Source Contribution: Kevin Chappell, of Terrasurv and under contract to EarthData International established 30 ground control points along the coastline of the island of Oahu and within a blocked area around Honolulu where the 2005 flight was flown. The points were surveyed using GPS for both vertical and horizontal coordinate values. The horizontal datum used was the North American Datum of 1983(Pacific Plate Fixed Realization, epoch 2002.0). The vertical datum used was a Local Tidal Datum. | Source Geospatial Form: Diagram | Type of Source Media: Electronic mail system Report of Survey - Oahu, Hawaii 2003-11-05 publication 2003-11-04 2003-11-05