gov.noaa.nmfs.inport:58161 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 2026-03-04T19:17:17 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) point 6379772838 NAD83(2011) / UTM zone 10N2008-11-12publicationEuropean Petroleum Survey Grouphttps://apps.epsg.org/api/v1/CoordRefSystem/6339/export/?format=gmlurn:ogc:def:crs:EPSG:63396.18.3 2017 OLC FEMA Lidar: Grass Valley, OR or2017_grs_vall_fema_m8920_metadata 2017-08-04 publication NOAA/NMFS/EDM 58161 https://www.fisheries.noaa.gov/inport/item/58161 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=8902 WWW:LINK-1.0-http--link Citation URL Link to custom download, from the Data Access Viewer (DAV), the raster Digital Elevation Model (DEM) data that were created from this lidar data set. download https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/8920/supplemental/2017_OLC_Grass_Valley_FEMA_Data_Report.pdf WWW:LINK-1.0-http--link Dataset report Link to data set report. download https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/8920/breaklines/ WWW:LINK-1.0-http--link Citation URL Link to the breakline data. 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 Geographic Extent: OLC Grass Valley FEMA Buffered Project Area, covering approximately 95,543 acres. Dataset Description: The OLC Grass Valley FEMA LiDAR project called for the Planning, Acquisition, processing and derivative products of LIDAR data to be collected at a nominal pulse spacing (NPS) of 0.35 m. Project specifications are based on the U.S. Geological Survey National Geospatial Program LIDAR Base Specification, Version 1.2. The data were developed based on the Universal Transverse Mercator (UTM) 10N projection; horizontal datum of NAD83 (2011), meters; and vertical datum of NAVD88 Geoid 12A, meters. LiDAR data were delivered in RAW flight line swath format, processed to create Classified LAS 1.4 Files formatted to a 750 meter by 750 meter tiling scheme; Hydro-flattened Bare Earth DEMs tiled to the same 750 meter by 750 meter tiling scheme; and Bridge and Hydro-Flattening Breaklines in ESRI File-Geodatabase format. Ground Conditions: LiDAR was collected in 2017, while no snow was on the ground and rivers were at or below normal levels. In order to post process the LiDAR data to meet task order specifications, Quantum Spatial established a total of 295 control points that were used to calibrate the LIDAR to known ground locations established throughout the OLC Grass Valley FEMA project area. In addition to these lidar point data, the bare earth Digital Elevation Models (DEM) created from the lidar point data and the breakline data are also available. These data are available for download at the links provided in the URL section of this metadata record. This data set contains point cloud data(' in LAZ (compressed LAS) format', ''). The data may have been reprojected or otherwise modified from the original data in an automated process. Disregard projection information in this abstract and refer to the spatial reference section. Classified LAS files are used to show the manually reviewed bare earth surface. This allows the user to create Breaklines and Raster DEM. These raw lidar point cloud data were used to create classified lidar LAS files, 3D breaklines, and hydro-flattened DEMs as necessary. Quantum Spatial, Inc. flew the LiDAR and processed the data. Quantum Spatial, Inc. The custom download may be cited as National Oceanic and Atmospheric Administration (NOAA) Digital Coast Data Access Viewer. Charleston, SC: NOAA Office for Coastal Management. Accessed 2026-04-20 at https://coast.noaa.gov/dataviewer. 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 notPlanned https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/8920/supplemental/or2017_grs_vall_fema_m8920.kmz This graphic displays the footprint for this lidar data set. KML EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION theme Global Change Master Directory (GCMD) Science Keywords 17.0 CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > OREGON VERTICAL LOCATION > LAND SURFACE place Global Change Master Directory (GCMD) Location Keywords 20.8 LIDAR > Light Detection and Ranging instrument Global Change Master Directory (GCMD) Instrument Keywords 17.2 Airplane > Airplane platform Global Change Master Directory (GCMD) Platform Keywords 17.2 Elevation data Hydrology LAS Point Cloud Lidar model remote sensing theme LiDAR, 3DEP, DEM, Raster, LAS beach erosion theme Lidar - partner (no harvest) project InPort otherRestrictions This data set was compiled dynamically. It will be removed 10 days after 2026-04-20 from the NOAA system. Cite As: OCM Partners, [Date of Access]: 2017 OLC FEMA Lidar: Grass Valley, OR [Data Date Range], https://www.fisheries.noaa.gov/inport/item/58161. 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 This data set was compiled dynamically. It will be removed 10 days after 2026-04-20 from the NOAA system. Access Constraints: None otherRestrictions This data set was compiled dynamically. It will be removed 10 days after 2026-04-20 from the NOAA system. 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 This data set was compiled dynamically. It will be removed 10 days after 2026-04-20 from the NOAA system. Distribution Liability: Any conclusions drawn from the analysis of this information are not the responsibility of Quantum Spatial, Inc, USGS, the Oregon Lidar Consoritum (OLC), DOGAMI, NOAA, the Office for Coastal Management or its partners. unclassified 2017 OLC FEMA Lidar DEM: Grass Valley, OR NOAA/NMFS/EDM 58162 crossReference NOAA Data Management Plan (DMP) NOAA/NMFS/EDM 58161 https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ocmp/dmp/pdf/58161.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 LiDAR Mapping Suite 2.4, Applanix PosPac 7.1, Microstation Version 8.0, TerraScan Version 16, TerraModeler Version 16, TerraMatch Version 16, ESRI ArcGIS 10.3.1, Windows 7 Operating System -120.795613 -120.388552 45.296337 45.665774 | Currentness: Ground Condition 2017-04-28 2017-05-04 CONTRACTOR: Quantum Spatial, Inc. Ground Control Points were acquired and calibrated by Quantum Spatial, Inc. All Lidar data acquisition, calibration, and follow-on processing were completed by the prime contractor. The following are the USGS lidar fields in JSON: { "ldrinfo" : { "ldrspec" : "U.S. Geological Survey National Geospatial Program LIDAR Base Specification, Version 1.2", "ldrsens" : "Leica ALS80", "ldrmaxnr" : "unlimited", "ldrnps" : "0.35 m", "ldrdens" : "8 PPSM", "ldranps" : "0.35 m", "ldradens" : "8 PPSM", "ldrfltht" : "1500 m", "ldrfltsp" : "140 kts", "ldrscana" : "30 degrees", "ldrscanr" : "58.4 Hz", "ldrpulsr" : "369.2 kHz", "ldrpulsd" : "3 ns", "ldrpulsw" : "0.25 m", "ldrwavel" : "1064 nm", "ldrmpia" : "1", "ldrbmdiv" : "0.25 mrad", "ldrswatw" : "804 m", "ldrswato" : "60%", "ldrcrs" : "North American Datum of 1983 (2011), UTM 10N, meters", "ldrgeoid" : "NAVD88 Geoid 12A" }, "ldraccur" : { "ldrchacc" : "0.5 m", "rawnva" : "0.076 m", "rawnvan" : "43" }, "lasinfo" : { "lasver" : "1.4", "lasprf" : "PF 6", "laswheld" : "Withheld points are identified as aerial distubrance, low ground noise and atmospheric distrubances.", "lasolap" : "Swath overage points are described as one degree to either side of overlapping swath boundaries.", "lasintr" : "12 bits", "lasclass" : { "clascode" : "1", "clasitem" : "Processed, but Unclassified" }, "lasclass" : { "clascode" : "2", "clasitem" : "Bare earth ground" }, "lasclass" : { "clascode" : "7", "clasitem" : "Low Noise" }, "lasclass" : { "clascode" : "9", "clasitem" : "Water" }, "lasclass" : { "clascode" : "10", "clasitem" : "Ignored Ground Near Breakline" }, "lasclass" : { "clascode" : "17", "clasitem" : "Bridge Decks" }, "lasclass" : { "clascode" : "18", "clasitem" : "High Noise" } }} 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=8920 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://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/8920/index.html WWW:LINK-1.0-http--link Bulk Download Bulk download of data files in LAZ format, geographic coordinates, orthometric heights. Note that the vertical datum (hence elevations) of the files here are different than described in this document. They will be in an orthometric datum. download dataset Vertical Positional Accuracy LAS data from the OLC Grass Valley FEMA project was compared to independent check points to determine the NVA of the LAS Swath and of the Bare Earth DEM. Raw Swath Non-Vegetated Vertical Accuracy (NVA) Tested 0.076 meters non vegetated vertical accuracy at a 95 percent confidence level, derived according to NSSDA, in open terrain using (RMSEz) x 1.96000 as defined by the National Standards for Spatial Data Accuracy (NSSDA); assessed and reported against 43 NVA points using National Digital Elevation Program (NDEP)/ASPRS Guidelines and tested against the TIN. Swath points flagged as withheld were not included in the accuracy test. RMSE is 3.9 cm. BareEarth DEM Non-Vegetated Vertical Accuracy (NVA) Tested 0.085 meters Non-vegetated vertical accuracy at a 95 percent confidence level, derived according to NSSDA, in open terrain using (RMSEz) x 1.96000 as defined by the National Standards for Spatial Data Accuracy (NSSDA); assessed and reported against 43 NVA points using National Digital Elevation Program (NDEP)/ASPRS Guidelines and tested against the DEM. Vegetated Vertical Accuracy (VVA): The required accuracy of the VVA at the 95th percentile according to specification is 0.294 meters. The VVA tested 0.107 meters at the 95th percentile using National Digital Elevation Program (NDEP)/ASPRS Guidelines against the DEM using 21 VVA points. No VVA errors larger than 95th percentile existed. Completeness Report Data sets contain complete coverage of tiles. No points have been removed or excluded. A visual qualitative assessment was performed to ensure data completeness. There are no void areas or missing data. The raw point cloud is of good quality and data passes Nonvegetated Vertical Accuracy specifications. Conceptual Consistency Classified LAS files were tested by Quantum Spatial for both vertical and horizontal accuracy. All data is seamless from one tile to the next, no gaps or no data areas. Classified LAS Processing: The bare earth surface is then manually reviewed to ensure correct classification on the Class 2 (Ground) points. After the bare-earth surface is finalized, it is then used to generate all hydro-breaklines through heads-up digitization. All ground (ASPRS Class 2) LiDAR data inside of the Lake Pond and Double Line Drain hydro flattening breaklines were then classified to water (ASPRS Class 9) using TerraScan macro functionality. A buffer of 0.7 meters was also used around each hydro-flattened feature to classify these ground (ASPRS Class 2) points to Ignored ground (ASPRS Class 10). All Lake Pond Island and Double Line Drain Island features were checked to ensure that the ground (ASPRS Class 2) points were reclassified to the correct classification after the automated classification was completed. All overlap data was processed through automated functionality provided by TerraScan to classify the overlapping flight line data to approved classes by USGS. The overlap data was classified to Class 1 using the Overlap and Withheld Classification flags. These classes were created through automated processes only and were not verified for classification accuracy. All data was manually reviewed and any remaining artifacts removed using functionality provided by TerraScan and TerraModeler. ArcMap was used as a final check of the bare earth dataset. Microstation was then used to create the deliverable industry-standard LAS files for both the All Point Cloud Data and the Bare Earth. Quantum Spatial proprietary software was used to perform final statistical analysis of the classes in the LAS files, on a per tile level to verify final classification metrics and full LAS header information. 2017-01-01T00:00:00 The NOAA Office for Coastal Management (OCM) received 795 lidar point cloud files in laz format from DOGAMI. The files contained lidar elevation and intensity measurements. The data were in UTM Zone 10N (NAD83 2011), meters coordinates and NAVD88 (Geoid12B) elevations in meters. The data were classified as: 1-Unclassified, 2-Ground, 7-Low Noise, 9-Water, 10-Ignored Ground, 17-Bridge Decks, 18-High Noise. OCM processed all classifications of points to the Digital Coast Data Access Viewer (DAV). Classes available on the DAV are: 1, 2, 7, 9, 10, 17, 18. OCM performed the following processing on the data for Digital Coast storage and provisioning purposes: 1. An internal OCM script was run to check the number of points by classification and by flight ID and the gps and intensity ranges. 2. Internal OCM scripts were run on the laz files to convert from orthometric (NAVD88) elevations to ellipsoid elevations using the Geoid 12B model, to convert from UTM Zone 10N (NAD83 2011), meters coordinates to geographic coordinates, to assign the geokeys, to sort the data by gps time, and zip the data to database and to http. 2019-11-05T00:00:00 Office for Coastal Management processor Source Contribution: This data source was used to populate the lidar point cloud data. Lidar RAW Data for OLC Grass Valley FEMA 2017 2017-08-04 publication Quantum Spatial, Inc. originator 2017-03-22 2017-05-01 Source Contribution: This data source was used (along with the airborne GPS/IMU Data) to aid in the georeferencing of the lidar point cloud data. Survey Report of LiDAR Ground Control Points: OLC Grass Valley FEMA 2017 LiDAR 2017-08-04 publication Quantum Spatial, Inc. originator 2017 Source Contribution: This data source was used (along with the lidar intensity imagery) to QC and vertically adjust the lidar point cloud data. 50 Survey Report of LiDAR Quality Control Points: OLC Grass Valley FEMA 2017 LiDAR 2017-08-04 publication Quantum Spatial, Inc. originator 2017 The dataset has been mosaiced, reprojected, and clipped as needed from the original input files using PDAL and GDAL commands. 2026-04-20NOAA Office for Coastal Managementcoastal.info@noaa.govprocessor