gov.noaa.nmfs.inport:50171 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) 2013 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Entiat wa2013_pslc_entiat_m2613_metadata 2014-01-10 publication NOAA/NMFS/EDM 50171 https://www.fisheries.noaa.gov/inport/item/50171 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 In October 2012, WSI (Watershed Sciences, Inc.) was contracted by the Puget Sound LiDARConsortium (PSLC) to collect Light Detection and Ranging (LiDAR) data for the EntiatRiver site in central Washington. The area is adjacent to several other LiDAR projectscollected in the greater Wenatchee area since 2008. Data were collected to aid inassessing the topographic and geophysical properties of the study area to supportfault line and geologic instability within the area. The Entiat site covers 67,067 acres,collected June 23, 26, 28, 29 and 30, 2013. Provide high resolution terrain elevation and land cover elevation data. Please credit the Puget Sound LiDAR Consortium (PSLC) for these data. The PSLC is supported by the Puget Sound Regional Council,the National Aeronautical and Space Administration (NASA), the United States Geological Survey (USGS) and numerous partners inlocal, state, and tribal government. 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/geoid18/2613/supplemental/wa2013_pslc_entiat_m2613.KMZ This graphic shows the lidar coverage for the areas near Entiat, Washington collected in 2013. kmz LAZ theme Lidar - partner (no harvest) project InPort otherRestrictions Cite As: OCM Partners, [Date of Access]: 2013 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Entiat [Data Date Range], https://www.fisheries.noaa.gov/inport/item/50171. 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 datamay no longer represent actual surface conditions. Users should not use this data for critical applications without a fullawareness 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 responsibilityof Watershed Sciences, PSLC, NOAA, the Office for Coastal Management or its partners. unclassified vector eng; US elevation -120.5446775 -120.2568846 47.52317975 47.74748427 A footprint of this data set may be viewed in Google Earth at:https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2613/supplemental/wa2013_pslc_entiat_m2613.KMZ Reports explaining collection and quality assurance is available at:https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2613/supplemental/wa2013_pslc_entiat_m2613_lidarreport.pdf 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=2613 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/geoid18/2613/index.html WWW:LINK-1.0-http--link Bulk Download Simple download of data files. download dataset Horizontal Positional Accuracy Horizontal positional accuracy for LiDAR is dependent upon the quality ofthe GPS/INS solution, sensor calibration and ground conditions at the time of data capture.The standard system results for horizontal accuracy are less than 1 meter.Not reported, assumed as 1.0 m. Laser horizontal errors are a function of flight altitudeabove ground (i.e., +/- 1/3000th AGL flight altitude). Relative errors for the position mustbe less than 1.5 cm horizontal and 2.0 cm vertical in order to be accepted.; Quantitative Value: 1.0 meters, Test that produced the value: See Lidar report. Vertical Positional Accuracy Upon the LiDAR data's arrival to the office, WSI processing staff initiates a suite ofautomated and manual techniques to process the data into the requested deliverables.Processing tasks include GPS control computations, smoothed best estimate trajectory(SBET) calculations, kinematic corrections, calculation of laser point position,calibration for optimal relative and absolute accuracy, and classification ofground and non-ground points.; Quantitative Value: 0.046 meters, Test that produced the value: Vertical absolute accuracy was primarily assessedfrom RTK ground check point (GCP) data collected on open, bare earth surfaces with levelslope (<20 degrees). Fundamental Vertical Accuracy (FVA) reporting is designed to meet guidelinespresented in the FGDC National Standard for Spatial Data Accuracy3. FVA compares known RTKground survey check points to the triangulated ground surface generated by the LiDAR points.FVA is a measure of the accuracy of LiDAR point data in open areas where the LiDAR system hasa "very high probability" of measuring the ground surface and is evaluated at the 95%confidence interval (1.96 sigma) calculated 0.152 ft (4.6 cm). Completeness Report LiDAR data has been collected and processed for all areas within the project study area. Conceptual Consistency The accuracy of the LiDAR data collection can be described in terms of absolute accuracy (the consistency ofthe data with external data sources) and relative accuracy (the consistency of the dataset with itself). SeeAppendix A in the lidar report for further information on sources of error and operational measures used toimprove relative accuracy. Planning.In preparation for data collection, WSI reviewed the project area using Google Earth,and flightlines were developed using a combination of specialized software. Carefulplanning by acquisition staff entailed adapting the pulse rate, flight altitude, scanangle, and ground speed to ensure complete coverage of the study area at thetarget point density of =8 pulses per square meter (0.74 pulses/square foot).Efforts are taken to optimize flight paths by minimizing flight times whilemeeting all accuracy specifications.Factors such as satellite constellation availability and weather windows mustbe considered during the planning stage. Any weather hazards or conditions affectingthe flight were continuously monitored due to their potential impact on the dailysuccess of airborne and ground operations. In addition, a variety of logisticalconsiderations required review including private property access, potential airspace restrictions, and availability of company resources (both staff andequipment). LiDAR Processing Steps:1. Resolve kinematic corrections for aircraft position data using kinematic aircraft GPSand static ground GPS data.Software - Waypoint GPS v.8.3 Trimble Business Center v.3.00 Geographic Calculator 20132. Develop a smoothed best estimate of trajectory (SBET) file that blends post-processedaircraft position with attitude data. Sensor head position and attitude are calculatedthroughout the survey. The SBET data are used extensively for laser point processing.Software - IPAS TC v.3.13. Calculate laser point position by associating SBET position to each laser point returntime, scan angle, intensity, etc. Create raw laser point cloud data for the entire surveyin *.las (ASPRS v. 1.2) format. Data are converted to orthometric elevations (NAVD88) byapplying a Geoid12 correction.Software - ALS Post Processing Software v.2.744. Import raw laser points into manageable blocks (less than 500 MB) to perform manualrelative accuracy calibration and filter erroneous points. Ground points are thenclassified for individual flight lines (to be used for relative accuracy testingand calibration).Software - TerraScan v.13.0085. Using ground classified points per each flight line, the relative accuracy is tested.Automated line-to-line calibrations are then performed for system attitude parameters(pitch, roll, heading), mirror flex (scale) and GPS/IMU drift.Calibrations are calculated on ground classified points from paired flight lines andresults are applied to all points in a flight line. Every flight line is used forrelative accuracy calibration.Software - TerraMatch v.13.0026. Classify resulting data to ground and other client designated ASPRSclassifications (Table 7). Assess statistical absolute accuracy via direct comparisonsof ground classified points to ground RTK survey data.Software - TerraScan v.13.008 TerraModeler v.13.0027. Generate bare earth models as triangulated surfaces. Highest hit models were createdas a surface expression of all classified points (excluding the noise and withheldclasses). All surface models were exported as ESRI grids at a 3-foot pixel resolution.Software - TerraScan v.13.008 ArcMap v. 10.1 TerraModeler v.13.002 The NOAA Office for Coastal Management (OCM) downloaded topographic files in LAZ format from PSLC's website.The files contained lidar easting, northing, elevation, intensity, return number, class, scan angleand GPS time measurements. Entiat data were received in Washington State Plane North, 4601 (feet) andreferenced to NAVD88 vertical feet.OCM performed the following processing for data storage and Digital Coast provisioning purposes:1. The All-Return LAZ files were cleared of variable lengths records.2. The All-Return LAZ files were converted from a Projected Coordinate System (State Plane 4601)to a Geographic Coordinate system (NAD83).3. The All-Return LAZ files were converted from NAVD88 to ellipsoidal heights using Geoid03. 2014-01-10T00:00:00