gov.noaa.nmfs.inport:64806 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 2026-04-30T00:00:00 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) EPSG::6360 EPSG::6420 2020 Lidar DEM: Santa Clara County, CA ca2020_santa_clara_dem_m9330_metadata 2020-10-19 publication NOAA/NMFS/EDM 64806 https://www.fisheries.noaa.gov/inport/item/64806 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 NOAA's Office for Coastal Management (OCM) website Information on the NOAA Office for Coastal Management (OCM) download https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=9329/details/9329 WWW:LINK-1.0-http--link Custom Point Download 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://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/9329/supplemental/312020310_SantaClara_County_CA_2020_LidarReport.pdf WWW:LINK-1.0-http--link Lidar Report Link to the Sanborn lidar report. download https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/9329/supplemental/USGS_CA_SantaClaraCounty_2020_Summary_Report.pdf WWW:LINK-1.0-http--link USGS Data Validation Report Link to the USGS Data Validation Report. download https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/9329/supplemental/USGS_CA_SantaClaraCounty_2020_FINAL_rasQC.txt WWW:LINK-1.0-http--link USGS Raster QC Report Link to the USGS Raster QC Report. download https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/9329/supplemental/CA_SantaClaraCounty_2020_A20_WP_Report.pdf WWW:LINK-1.0-http--link USGS Vertical Accuracy Report Link to the USGS vertical accuracy report. download https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/9329/breaklines/ WWW:LINK-1.0-http--link Hydro Breaklines Link to the hydro breaklines. 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 Product: These are Digital Elevation Model (DEM) data as part of the required deliverables for the lidar project. Class 2 (Ground) lidar points in conjunction with the hydro breaklines were used to create a 1 foot hydro-flattened Raster DEM. Geographic Extent: Santa Clara county, California, covering approximately 1771 square miles. Dataset Description: The 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 meters. Project specifications are based on the U.S. Geological Survey National Geospatial Program Base Lidar Specification, Version 2.1. Lidar data was delivered as processed Classified LAS 1.4 files, formatted to 8184 individual 2500 ft x 2500 ft tiles, as tiled intensity rasters, and as tiled bare-earth DEMs; all tiled to the same 2500 ft x 2500 ft schema. Ground Conditions: Lidar was collected in early 2020, 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 and meet ASPRS vertical accuracy guidelines, Sanborn Map Company, Inc., utilized a total of 25 ground control points that were used to calibrate the lidar to known ground locations established throughout the project area. An additional 125 independent accuracy checkpoints, 70 in Bare Earth and Urban landcovers (70 NVA points), 55 in Tall Grass and Brushland/Low Trees categories (55 VVA points), were used to assess the vertical accuracy of the data. These check points were not used to calibrate or post process the data. The NOAA Office for Coastal Management (OCM) downloaded 8184 GeoTiff raster data files from this USGS site: ftp://rockyftp.cr.usgs.gov/vdelivery/Datasets/Staged/Elevation/OPR/Projects/CA_SantaClaraCounty_2020_A20/CA_SantaClaraCounty_2020/TIFF/ The data were processed to the Data Access Viewer (DAV) and http. In addition to these bare earth Digital Elevation Model (DEM) data, the lidar point data that these DEM data were created from, are also available. The hydro breaklines are also available for download. These data are available for download at the links provided in the URL section of this metadata record. Please note that these products have not been reviewed by the NOAA Office for Coastal Management (OCM) and any conclusions drawn from the analysis of this information are not the responsibility of NOAA or OCM. To acquire detailed surface elevation data for use in conservation planning, design, research, floodplain mapping, dam safety assessments and elevation modeling, etc. Classified LAS files are used to show the manually reviewed bare earth surface. This allows the user to create Intensity Images, Breaklines and Raster DEM. The purpose of these lidar data was to produce high accuracy 3D hydro-flattened Digital Elevation Model (DEM) with a 1 foot cell size. These lidar point cloud data were used to create intensity images, 3D breaklines, and hydro-flattened DEMs as necessary. Sanborn Map Company, Inc. 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/geoid18/9329/supplemental/ca2020_santa_clara_m9329.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 23.3 CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > CALIFORNIA VERTICAL LOCATION > LAND SURFACE place Global Change Master Directory (GCMD) Location Keywords 23.3 LIDAR > Light Detection and Ranging instrument Global Change Master Directory (GCMD) Instrument Keywords 23.3 Airplane > Airplane DEM > Digital Elevation Model platform Global Change Master Directory (GCMD) Platform Keywords 23.3 DEM theme DEMs - partner (no harvest) project InPort otherRestrictions Cite As: OCM Partners, [Date of Access]: 2020 Lidar DEM: Santa Clara County, CA [Data Date Range], https://www.fisheries.noaa.gov/inport/item/64806. 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 the analysis of this information are not the responsibility of NOAA, the Office for Coastal Management or its partners. unclassified 2020 Lidar: Santa Clara County, CA NOAA/NMFS/EDM 64802 crossReference grid eng; US elevation -122.2517701747 -121.1604881458 36.8544593422 37.5246275052 | Currentness: Ground Condition 2020-04-03 2020-04-22 Raster File Type = TIFF Bit Depth/Pixel Type = 32-bit float Raster Cell Size = 1 Foot Interpolation or Resampling Technique = Triangulated Irregular Network Required Vertical Accuracy = 19.6 cm NVA 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=9330/details/9330 WWW:LINK-1.0-http--link Customized Download Create custom data files by choosing data area, map projection, file format, etc. A new metadata will be produced to reflect your request using this record as a base. download https://noaa-nos-coastal-lidar-pds.s3.us-east-1.amazonaws.com/dem/CA_Santa_Clara_DEM_2020_9330/index.html WWW:LINK-1.0-http--link Bulk Download Bulk download of data files in the original coordinate system. download dataset Vertical Positional Accuracy This data set was produced to meet ASPRS Positional Accuracy Standard for Digital Geospatial Data (2014) for a 10-cm RMSEz Vertical Accuracy Class. USGS Determined Vertical Accuracy - These values were taken from the USGS WP report. A link to it is provided in the URL section of this metadata record. DEM Tested NVA = 9.13 cm at 95% Confidence Level (4.66 cm RMSE) DEM Tested VVA = 12.66 cm at 95th Percentile Please see the USGS Work Package Report for more information. The link to this report is provided in the URL section of this metadata record. Completeness Report Datasets 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 Non-Vegetated Vertical Accuracy specifications. Conceptual Consistency Data covers the entire area specified for this project. Data were collected and processed by Sanborn Map Company, Inc. and made available on the USGS ftp site. The data were downloaded from the USGS ftp site by the NOAA Office for Coastal Management (OCM) where the data were processed to make it available for custom download from the Data Access Viewer (DAV) and bulk download from https. Hydro-Flattened Bare-Earth DEM Process: Class 2 (Ground) lidar points in conjunction with the hydro breaklines were used to create a 1 foot hydro-flattened Raster DEM. Using automated scripting routines within LP360, a GeoTIFF file was created for each tile. Each surface is reviewed using Global Mapper to check for any surface anomalies or incorrect elevations found within the surface. 2020-10-18T00:00:00 The NOAA Office for Coastal Management (OCM) downloaded 8184 raster DEM files in GeoTiff format from this USGS site: ftp://rockyftp.cr.usgs.gov/vdelivery/Datasets/Staged/Elevation/OPR/Projects/CA_SantaClaraCounty_2020_A20/CA_SantaClaraCounty_2020/TIFF/. The bare earth raster files were at a 1 foot grid spacing. The data were in CA State Plane Region 3 NAD83 (2011), US survey feet coordinates and NAVD88 (Geoid18) elevations in US survey feet. OCM assigned the appropriate EPSG codes (Horiz - 6420, Vert - 6360) and copied the raster files to https for Digital Coast storage and provisioning purposes. 2021-06-21T00:00:00 Office for Coastal Management processor Sanborn Map Company, Inc. U.S. Geological Survey (USGS)