gov.noaa.nmfs.inport:58671 eng UTF8 dataset Elevation 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 2021-08-28T00:00:00 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) EPSG::5714 EPSG::6322 2013 USACE NCMP Topobathy Lidar DEM (LMSL): Niihau, HI usace2013_niihau_dem_m9002_metadata 2017-06-14 publication Coral Reef Information System https://www.coris.noaa.gov/metadata/records/latest_noharvest/iso/58671.xml information resourceProvider 8540 NOAA/NMFS/EDM 58671 https://www.fisheries.noaa.gov/inport/item/58671 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/#/lidar/search/where:ID=6268 WWW:LINK-1.0-http--link LAZ data Link to custom download, from the Data Access Viewer (DAV), the lidar point data from which these raster Digital Elevation Model (DEM) data were created. download https://coast.noaa.gov/dataviewer/ WWW:LINK-1.0-http--link NOAA's Office for Coastal Management (OCM) Data Access Viewer (DAV) The Data Access Viewer (DAV) allows a user to search for and download elevation, imagery, and land cover data for the coastal U.S. and its territories. The data, hosted by the NOAA Office for Coastal Management, can be customized and requested for free download through a checkout interface. An email provides a link to the customized data, while the original data set is available through a link within the viewer. download These Digital Elevation Model (DEM) files contain rasterized topobathy lidar elevations at a 1 m grid size, generated from data collected by the Coastal Zone Mapping and Imaging Lidar (CZMIL) system. CZMIL integrates a lidar sensor with simultaneous topographic and bathymetric capabilities, a digital camera and a hyperspectral imager on a single remote sensing platform for use in coastal mapping and charting activities. Horizontal positions, provided in decimal degrees of latitude and longitude, are referenced to the North American Datum of 1983 Pacific Adjustment of 2011 (NAD83 PA11). Vertical positions are referenced to the Local Mean Sea Level (LMSL) and provided in meters. The 3-D position data are used to generate a series of gridded file products, which are tiled into quarter-quads or 5 km boxes. In addition to the bare earth DEMs, the topobathy lidar point data from which these DEM data were created, are also available. A link to this data is provided in the URL section of this metadata record. DEMs that were created from all classes of points (1, 2, 29) at a 1 meter grid size are available by request via email at: coastal.info@noaa.gov. These data were collected as a part of the NCMP to depict the elevations above and below the water in the Hawaii coastal zone. Acknowledgement of the Joint Airborne Lidar Bathymetry Technical Center of eXpertise (JALBTCX) would be appreciated in any publications or derived products. 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/lidar2_z/geoid12b/data/6268/supplemental/hi2013_usace_ncmp_niihau_m6268.kmz This graphic displays the footprint for this lidar data set. KML EARTH SCIENCE > Land Surface > Topography > Terrain Elevation theme CoRIS Theme Thesaurus Geographic Information > LiDAR theme CoRIS Discovery Thesaurus COUNTRY/TERRITORY > United States of America > Hawaii > Kauai > Niihau Island (21N160W0001) OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Niihau Island > Niihau Island (21N160W0001) place CoRIS Place Thesaurus DOD/USARMY/USACE/SAM/MOBILE/OPJ/JALBTCX > Department of Defense Joint Airborne Lidar Bathymetry Technical Center of Expertise Mobile District Spatial Data Branch United States Army United States Army Corps of Engineers theme GCMD Data Center Keywords v7 HUMAN DIMENSIONS > LAND USE/LAND COVER > LAND USE CLASSES SOLID EARTH > GEOMORPHOLOGY > COASTAL LANDFORMS/PROCESSES theme GCMD Earth Sciences Keywords LIDAR > LIGHT DETECTION AND RANGING theme GCMD Instrument Keywords v7 Earth Science > Land Surface > Topography > Terrain Elevation Earth Science > Oceans > Bathymetry/Seafloor Topography > Bathymetry > Coastal Bathymetry Earth Science > Oceans > Coastal Processes > Coastal Elevation theme Global Change Master Directory (GCMD) Science Keywords OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Niihau Island > Niihau Island (21N160W0001) place CoRIS Place Thesaurus VERTICAL LOCATION > LAND SURFACE VERTICAL LOCATION > SEA FLOOR place GCMD Location Keywords v7 Continent > North America > United States Of America > Hawaii Niihau place Global Change Master Directory (GCMD) Location Keywords Earth Remote Sensing Instruments > Active Remote Sensing > Profilers/Sounders > Lidar/Laser Sounders > LIDAR > Light Detection and Ranging instrument Global Change Master Directory (GCMD) Instrument Keywords Aircraft > Aircraft platform Global Change Master Directory (GCMD) Platform Keywords 1mRaster BareEarth Bathymetry Bathymetry/Topography Coastal Zone Mapping Imaging Lidar (CZMIL) DEM IWG-OCM National Coastal Mapping Program (NCMP) Topography beach digital elevation model erosion laser lidar theme U.S. Coastline place DEMs - partner (no harvest) project InPort otherRestrictions Cite As: OCM Partners, [Date of Access]: 2013 USACE NCMP Topobathy Lidar DEM (LMSL): Niihau, HI [Data Date Range], https://www.fisheries.noaa.gov/inport/item/58671. 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. | Distribution Liability: These data have been developed from the best available sources. Although efforts have been made to ensure that the data are accurate and reliable, errors and variable conditions originating from physical sources used to develop the data may be reflected in the data supplied. Users must be aware of these conditions and bear responsibility for the appropriate use of the information with respect to possible errors, scale, resolution, rectification, positional accuracy, development methodology, time period, environmental and climatic conditions and other circumstances specific to these data. The user is responsible for understanding the accuracy limitations of the data provided herein. The burden for determining fitness for use lies entirely with the user. The user should refer to the accompanying metadata notes for a description of the data and data development procedures. Any conclusions drawn from the analysis of this information are not the responsibility of JALBTCX, the NOAA Office for Coastal Management, or its partners. unclassified 2013 USACE NCMP Topobathy Lidar: Niihau (HI) NOAA/NMFS/EDM 49754 crossReference NOAA Data Management Plan (DMP) NOAA/NMFS/EDM 58671 https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ocmp/dmp/pdf/58671.pdf WWW:LINK-1.0-http--link NOAA Data Management Plan (DMP) NOAA Data Management Plan for this record on InPort. information crossReference grid eng; US elevation imageryBaseMapsEarthCover location oceans Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.1.0.3035 -160.239306 -160.045494 21.878441 22.012455 | Currentness: Ground Condition 2013-09-26 2013-10-07 Zip Zip GeoTIFF 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=9002 WWW:LINK-1.0-http--link Customized Download Create custom data files by choosing data area, product type, map projection, file format, datum, etc. A new metadata will be produced to reflect your request using this record as a base. Change to an orthometric vertical datum is one of the many options. download https://coast.noaa.gov/htdata/raster2/elevation/USACE_HI_Niihau_LMSL_DEM_2013_9002 WWW:LINK-1.0-http--link Bulk Download Bulk download of data files in geographic coordinates, LMSL heights. download dataset Horizontal Positional Accuracy CZMIL topographic data - Compiled to meet 1 m horizontal accuracy at 95% confidence level. CZMIL bathymetric data - Compiled to meet 3.5 + 0.05d m horizontal accuracy at 95% confidence level, d is depth. Vertical Positional Accuracy CZMIL topographic data - Compiled to meet 19.6 cm vertical accuracy at 95% confidence level. CZMIL bathymetric shallow FOV data - Compiled to meet SQRT((0.25^2) +((0.0075d)^2)) m vertical accuracy at 95% confidence level, d is depth. CZMIL bathymetric deep FOV data - Compiled to meet SQRT((0.30^2) +((0.013d)^2)) m vertical accuracy at 95% confidence level, d is depth. Completeness Report This data set covers the spatial extent of topographic lidar data obtained during this survey. Conceptual Consistency During inspection and QC of the lidar point cloud, flightline to flightline elevation differences met the CZMIL sensor specifications. These data were collected using the CZMIL system. It is owned and operated by the U.S. Army Corps of Engineers (USACE). The system collects topo/bathy lidar data at 10 kHz and RGB imagery at 2 Hz. A CASI-1500 hyperspectral line scanner is integrated with the system as well. Aircraft position, velocity and acceleration information are collected through a combination of Novatel and POS A/V 510 equipment. All raw data streams are transferred to the office for downloading and processing in CZMIL's Hydro Fusion software. Aircraft position data are processed using POSPac software and the results are combined with the lidar data to produce 3-D positions for each lidar shot. Upon inspection and QA/QC in the software packages Fledermaus and PFM_ABE, anomalous data are flagged as invalid. PFM_ABE software then exports valid lidar data as a series of unclassified LAS files relative to NAD83 PA 2011 ellipsoid. 2013-09-26T00:00:00 LAS files are imported into GeoCue V2014.1.21.1, which is a geospatial workflow production and management software tool employed by JALBTCX to perform and monitor production of data products. Upon import into GeoCue, A customized classification macro, built upon the TerraScan V13 module within Microstation V8i, classifies valid topobathy data as ground points (2), unclassified points (1), and bathymetric points (29). Upon completion the macro, the classification results undergo quality control and any misclassified points are manually edited. In areas of dense vegetation the bare earth ground points might be incorrectly classified due to the inability of the laser to penetrate the canopy and reach the bare ground. In these areas, JALBTCX defaults to the algorithm's "ground" surface instead of manually reclassifying those points. They are partitioned into a series of 1km boxes, one Classified LAS file per box and converted to NAD83 2011 Geoid 12A.. The format of the file is LAS version 1.2. Data are classified as 1 (valid non-ground topographic data), 2 (valid ground topographic data), and 29 (valid bathymetric data). Then the LAS files are shifted to Local Mean Sea Level (LMSL.) The Geoid12A to HI LMSL vertical adjustment value derived from published NGS control point datasheets for HI, Kauai was -0.827m 2017-03-08T00:00:00 Data classified as ground points (2) and bathymetric points (29) in the las files are converted to a grid by generating a triangulated irregular network (TIN) and then extracting the grid node elevations from the TIN surface. The origin point of the grid is located at a horizontal position whose value is evenly divisible by the 1m grid resolution such that rasters from subsequent surveys have common cell boundaries. JALBTCX uses Quick Terrain Modeler V8 to perform this operation utilizing the following parameters; "Legacy Triangulation", "Max Sample Excursion - 30000", "Max Triangle Side - 30000", "Radius - none", "Tolerance - 1", and "Tiling Settings Snap to Grid (Expand)." The grid is exported from Quick Terrain Modeler as an ESRI ASCII Z grid file. Utilizing an in-house python script within ESRI ArcMap V10.2, the ASCII Z grid file is converted to a tiff-format raster file whose projection is defined as "The North American Datum of 1983 (2011)." The raster is then multiplied against a corresponding 1m Grid mask raster, a mask image produced from JALBTCX's 1m Grid, in ESRI's Raster Calculator to remove interpolated areas where data does not exist. 2017-04-05T00:00:00 The NOAA Office for Coastal Management (OCM) received the data in tif format from JALBTCX. The bare earth raster files were at a 1 m grid spacing. The data were in geographic coordinates (NAD83 PA11) and Local Mean Sea Level (LMSL) elevations in meters. OCM assigned teh EPSG codes of 5714 (MSL heights) and 6322 (NAD83 PA11), copied the raster files to database and https for Digital Coast storage and provisioning purposes. 2020-01-27T00:00:00 Office for Coastal Management processor