gov.noaa.nmfs.inport:48143 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 2026-04-30T00:00:00 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) EPSG::6782 2004 Alaska Lidar Mapping ak2004_m23_metadata 2006-03-22 publication NOAA/NMFS/EDM 48143 https://www.fisheries.noaa.gov/inport/item/48143 WWW:LINK-1.0-http--link Full Metadata Record View the complete metadata record on InPort for more information about this dataset. information https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid12b/23/supplemental/AK0302_REVISED.pdf WWW:LINK-1.0-http--link Data report 0302 Data report for 0302 download https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid12b/23/supplemental/AK0301_REVISED.pdf WWW:LINK-1.0-http--link Data report flights 0301 Report download The data sets are generated using the OPTECH ALTM 70 kHz LIDAR system mounted onboard AeroMap's twin-engine Cessna 320 aircraft. Classified data sets such as this one may have varying posting due to some LIDAR pulses not reaching the ground caused by data anomalies. Accuracy statements are based on areas of moderate terrain. Diminished accuracies are to be expected in areas of extreme terrain and dense vegetation. The accuracy of each point is expected to meet the vertical accuracy standard; however, derived products may be less accurate in extreme terrain and dense vegetation due to a lesser number of points defining the bare-earth in these areas. The data were QA/QC'ed but some data holidays still exist. This data represents the last return data only. Original contact information: Contact Org: NOAA Office for Coastal Management Phone: 843-740-1202 Email: coastal.info@noaa.gov The purpose of this data set is to provide a source for current and accurate digital elevation models (DEM) with vertical accuracy's of 30cm root mean square error (RMSE) or better. These data were acquired at flying heights of 1200 and 2000 meters Above Mean Terrain (AMT) with post spacing planned for 1 and 2 meters. This data is not recommended for design mapping or engineering. A DEM is used as a fundamental layer of information in Geographic Information Systems (GIS). A number of the priority layers of spatial information recognized by the National Spatial Data Infrastructure may be derived from LIDAR DEMs, including elevation, hydrography, slope, aspect, and shoreline delineation. This data set was developed for the NOAA OCM by AeroMap US. 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 23.3 CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > ALASKA place Global Change Master Directory (GCMD) Location Keywords 23.3 Cartography Geodesy Geography Height Hydrography Interferometric Mapping Photogrammetry Radar Remote Sensing Stereophotogrammetry Terrain theme 2004 August July temporal Bald Earth First Ground Surface stratum 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]: 2004 Alaska Lidar Mapping [Data Date Range], https://www.fisheries.noaa.gov/inport/item/48143. 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, the Office for Coastal Management or its partners. unclassified vector eng; US elevation -168.530215 -162.633189 65.594656 68.35997 | Currentness: Ground Condition 2004-07-21 | Currentness: Ground Condition 2004-07-22 | Currentness: Ground Condition 2004-08-01 | Currentness: Ground Condition 2004-08-05 | Currentness: Ground Condition 2004-08-06 | Currentness: Ground Condition 2004-08-11 The survey reports for 2004 Alaska Lidar Mapping may be viewed at: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid12b/23/supplemental/index.html There are two reports, one for area ak0301 (Shishmaref) and one for area ak0302 (Kivalina). false eng false *.xyz 2022-03-16 publication C 2022-03-16 publication T 2022-03-16 publication I 2022-03-16 publication X 2022-03-16 publication Y 2017-11-16 publication Z 2017-11-16 publication 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=23 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/23/index.html WWW:LINK-1.0-http--link Bulk Download Simple download of data files in orthometric. download dataset Horizontal Positional Accuracy All data products were processed to meet 0.6 & 1.0 meters RMSE or better in horizontal accuracy. Vertical Positional Accuracy All data products were processed to meet 30cm RMSE or better in vertical accuracy. We recommend a ground quality control check of the data set. This data is not recommended for design grade mapping or engineering. Completeness Measure Cloud Cover: 0 Completeness Report Complete Conceptual Consistency Unknown The raw points for the point cloud data product were captured using AeroMap U.S.'s twin-engine Cessna equipped with our OPTECH ALTM 70 kHz LIDAR data acquisition system. The system includes differential GPS and inertial measurement systems to provide superior accuracy. The flying height is 1200 & 2000 meters Above Mean Terrain (AMT). These data were post-processed utilizing Optech's REALM (Version 3.5.4) software, which applies AeroMap U.S.'s Applanix Inertial Measurement Unit (IMU) values to the acquired Airborne Global Positioning Systems (ABGPS) data. These results are then applied to the acquired LIDAR data points and output to a LIDAR accuracy standard (LAS) format in a WGS 84, Universal Transverse Mercator (UTM), Zone 3, Meters coordinate system. Using Bentley's Microstation V8 LIDAR these data were imported in LAS format. Using TerraSolid's TerraScan (version 6.04) software, these data were imported into a TerraScan project files (PRJ) and converted (on import) to a binary files, no data were classified, all original "point cloud" data as output from REALM. These data were then output to the deliverable ASCII, space delimited, CTIXYZ format, (see attribute section for explanation of ASCII file syntax). 2006-03-24T00:00:00 Created initial metadata 2006-03-24T00:00:00 The NOAA Office for Coastal Management (OCM) received files in LAS format. The files contained lidar intensity and elevation measurements. OCM performed the following processing on the data to make it available within the Lidar Data Retrieval Tool (LDART): 1. All data points in the ASCII files were projected geographic decimals degrees using the USGS General Cartographic Transformation Package (GCTP) software. 2. All ASCII files containing points collected on the same date were combined into a single file and sorted by latitude. 3. The sorted files were then converted to binary LAS files and the las header fields were updated. 4. Data was QA/QC'ed and many points removed - there still remains several 'data holidays' as unique outliers in otherwise ordered areas. They can be manually edited by user if required. This data represents the last return data only. 2007-02-09T00:00:00 Office for Coastal Management processor Lidar point cloud Aeromap originator