gov.noaa.nmfs.inport:74863 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 2026-06-09T18:17:45 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) EPSG::5703 EPSG::6340 EPSG::6339 2021 - 2022 UCSD/USGS Lidar DEM: Sierra Nevada, CA ca2021_sierra_nev_dem_m10262 2021 creation 2023-08-29 publication NOAA/NMFS/EDM 74863 https://www.fisheries.noaa.gov/inport/item/74863 WWW:LINK-1.0-http--link Full Metadata Record View the complete metadata record on InPort for more information about this dataset. information https://prd-tnm.s3.amazonaws.com/StagedProducts/Elevation/metadata/CA_SierraNevada_B22/USGS_CA_SierraNevada_B22_Project_Report.pdf WWW:LINK-1.0-http--link USGS Project Report Link to the USGS Project Report that provides information about the project, vertical accuracy results, and the point classes and sensors used. download https://prd-tnm.s3.amazonaws.com/StagedProducts/Elevation/metadata/CA_SierraNevada_B22/CA_SierraNevada_1_2022/reports/140G0222F0176_CA_SierraNevada_2022_WU_300057_WU1_Final_Report_Revised%20-%20signed.pdf WWW:LINK-1.0-http--link Lidar Report - CA_SierraNevada_1 Link to the lidar report for CA_SierraNevada_1 download https://prd-tnm.s3.amazonaws.com/StagedProducts/Elevation/metadata/CA_SierraNevada_B22/CA_SierraNevada_10_2022/reports/CA_SierraNevada_10_2022_Lidar_Mapping_Report_WU300365_Rev_05212024.pdf WWW:LINK-1.0-http--link Lidar Report - CA_SierraNevada_10 Link to the lidar report for CA_SierraNevada_10 download https://prd-tnm.s3.amazonaws.com/StagedProducts/Elevation/metadata/CA_SierraNevada_B22/CA_SierraNevada_11_B22/reports/140G0222F0176_CA_SierraNevada_2022_WU_300459_WU11_Report_Final_Revised.pdf WWW:LINK-1.0-http--link Lidar Report - CA_SierraNevada_11 Link to the lidar report for CA_SierraNevada_11 download https://prd-tnm.s3.amazonaws.com/StagedProducts/Elevation/metadata/CA_SierraNevada_B22/CA_SierraNevada_12_B22/reports/140G0222F0176_CA_SierraNevada_2022_WU_300460_WU12_Report_Final.pdf WWW:LINK-1.0-http--link Lidar Report - CA_SierraNevada_12 Link to the lidar report for CA_SierraNevada_12 download https://prd-tnm.s3.amazonaws.com/StagedProducts/Elevation/metadata/CA_SierraNevada_B22/CA_SierraNevada_13_B22/reports/140G0222F0176_CA_SierraNevada_2022_WU_300461_WU13_Report_Final.pdf WWW:LINK-1.0-http--link Lidar Report - CA_SierraNevada_13 Link to the lidar report for CA_SierraNevada_13 download https://prd-tnm.s3.amazonaws.com/StagedProducts/Elevation/metadata/CA_SierraNevada_B22/CA_SierraNevada_14_B22/reports/140G0222F0176_CA_SierraNevada_2022_WU_300462_WU14_Report_Revision.pdf WWW:LINK-1.0-http--link Lidar Report - CA_SierraNevada_14 Link to the lidar report for CA_SierraNevada_14 download https://prd-tnm.s3.amazonaws.com/StagedProducts/Elevation/metadata/CA_SierraNevada_B22/CA_SierraNevada_2_2022/reports/140G0222F0176_CA_SierraNevada_2022_WU_300058_WU2_Final_Report_Revised%20-%20signed.pdf WWW:LINK-1.0-http--link Lidar Report - CA_SierraNevada_2 Link to the lidar report for CA_SierraNevada_2 download https://prd-tnm.s3.amazonaws.com/StagedProducts/Elevation/metadata/CA_SierraNevada_B22/CA_SierraNevada_3_2022/reports/140G0222F0176_CA_SierraNevada_1_2022_WU_300059_WU%233_Final_Rev.1%20-%20signed.pdf WWW:LINK-1.0-http--link Lidar Report - CA_SierraNevada_3 Link to the lidar report for CA_SierraNevada_3 download https://prd-tnm.s3.amazonaws.com/StagedProducts/Elevation/metadata/CA_SierraNevada_B22/CA_SierraNevada_4_2022/reports/140G0222F0176_CA_SierraNevada_2022_WU_300244_WU4_Final_Report_Revised%20-%20signed.pdf WWW:LINK-1.0-http--link Lidar Report - CA_SierraNevada_4 Link to the lidar report for CA_SierraNevada_4 download https://prd-tnm.s3.amazonaws.com/StagedProducts/Elevation/metadata/CA_SierraNevada_B22/CA_SierraNevada_5_2022/reports/140G0222F0176_CA_SierraNevada_2022_WU_300245_WU5_Final_Report_Revised.pdf WWW:LINK-1.0-http--link Lidar Report - CA_SierraNevada_5 Link to the lidar report for CA_SierraNevada_5 download https://prd-tnm.s3.amazonaws.com/StagedProducts/Elevation/metadata/CA_SierraNevada_B22/CA_SierraNevada_6_2022/reports/140G0222F0176_CA_SierraNevada_2022_WU_300246_WU6_Final_Report_Revised%20-%20signed.pdf WWW:LINK-1.0-http--link Lidar Report - CA_SierraNevada_6 Link to the lidar report for CA_SierraNevada_6 download https://prd-tnm.s3.amazonaws.com/StagedProducts/Elevation/metadata/CA_SierraNevada_B22/CA_SierraNevada_7_2022/reports/140G0222F0176_CA_SierraNevada_2022_WU_300271_WU7_Final_Report_Revised.pdf WWW:LINK-1.0-http--link Lidar Report - CA_SierraNevada_7 Link to the lidar report for CA_SierraNevada_7 download https://prd-tnm.s3.amazonaws.com/StagedProducts/Elevation/metadata/CA_SierraNevada_B22/CA_SierraNevada_8_2022/reports/140G0222F0176_CA_SierraNevada_2022_WU_300363_WU8_Final_Report_Revised.pdf WWW:LINK-1.0-http--link Lidar Report - CA_SierraNevada_8 Link to the lidar report for CA_SierraNevada_8 download https://prd-tnm.s3.amazonaws.com/StagedProducts/Elevation/metadata/CA_SierraNevada_B22/CA_SierraNevada_9_2022/reports/CA_SierraNevada_9_2022_Lidar_Mapping_Report_WU300364_DS_rev_05212024.pdf WWW:LINK-1.0-http--link Lidar Report - CA_SierraNevada_9 Link to the lidar report for CA_SierraNevada_9 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 https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/metadata/CA_SierraNevada_B22/ WWW:LINK-1.0-http--link USGS Additional Info This link is to the reports, breaklines, metadata, spatial metadata, and shapefiles. download Original Dataset Product: Hydro-flattened 0.5 m Digital Elevation Model (DEM) data covering the CA Sierra Nevada project area. Original Dataset Geographic Extent: CA_SierraNevada_1_2022 (Work Unit 300057) - This dataset and derived products encompass an area covering approximately 1204 square miles in the northern region of the project. CA_SierraNevada_2_2022 (Work Unit 300058) - This dataset and derived products encompass an area covering approximately 1687 square miles in the northern region of the project. CA_SierraNevada_3_2022 (Work Unit 300059) - This dataset and derived products encompass an area covering approximately 1353 square miles in the northern region of the project. CA_SierraNevada_4_2022 (Work Unit 300244) - This dataset and derived products encompass an area covering approximately 2688 square miles in the northern region of the project. CA_SierraNevada_5_2022 (Work Unit 300245) - This dataset and derived products encompass an area covering approximately 2298 square miles in the central region of the project. CA_SierraNevada_6_2022 (Work Unit 300246) - This dataset and derived products encompass an area covering approximately 2136 square miles in the northern region of the project. CA_SierraNevada_7_2022 (Work Unit 300271) - This dataset and derived products encompass an area covering approximately 1193 square miles in the northern region of the project. CA_SierraNevada_8_2022 (Work Unit 300363) - This dataset and derived products encompass an area covering approximately 2167 square miles in the central region of the project. This area includes the Sierra Nevada Mountains from the eastern shore of Lake Tahoe west to the ridgeline of the Carson Range, most of the city of South Lake Tahoe and traverses due south to the unincorporated community of Strawberry, then follows the mountain ridge between Tuolumne and Mono counties. It includes the community of Bridgeport and spans east-northeast to the Nevada border. CA_SierraNevada_9_2022 (Work Unit 300364) - This dataset and derived products encompass an area covering approximately 2944 square miles in the southern region of the project. CA_SierraNevada_10_2022 (Work Unit 300365) - This dataset and derived products encompass an area covering approximately 2593 square miles in the southern region of the project. CA_SierraNevada_11_2022 (Work Unit 300459) - This dataset and derived products encompass an area covering approximately 1771 square miles in the central region of the project. CA_SierraNevada_12_2022 (Work Unit 300460) - This dataset and derived products encompass an area covering approximately 1410 square miles in the central region of the project. CA_SierraNevada_13_2022 (Work Unit 300461) - This dataset and derived products encompass an area covering approximately 3094 square miles in the central region of the project. CA_SierraNevada_14_2022 (Work Unit 300462) - This dataset and derived products encompass an area covering approximately 3866 square miles in the southern region of the project. Original Dataset Description: Lidar flight line swaths were processed to create classified LAS 1.4 files delineated in 1,000m x 1,000m tiles. Each LAS file contains lidar point information, which has been calibrated, controlled, and classified. Class 2 (ground) lidar points in conjunction with the hydro breaklines were used to create 0.5 meter hydro-flattened Raster DEMs delineated in 1,000m x 1,000m tiles. Additional products include classified LAS files, intensity images, highest hit surface models, and 3D breaklines of rivers and lakes within the study area. Original Dataset Ground Conditions: Acquisition occurred free of smoke, fog and cloud cover. This metadata record supports the data entry in the NOAA Digital Coast Data Access Viewer (DAV). For this data set, the DAV is leveraging the GeoTIFF files hosted by USGS on Amazon Web Services. The purpose of the lidar data was to produce a high accuracy 3D dataset that meets all necessary standards laid out by the 3D Elevation Program. The Natural Resources Conservation Service (NRCS), and the University of California San Diego (UCSD) were partners. The lidar point cloud data were used to create classified lidar LAS files, intensity images, hydro-flattened DEMs, highest hit surface models, and 3D breaklines of rivers and lakes within the study area. Data were collected to aid UCSD & USGS in assessing the topographic and geophysical properties of the study area to support fire mitigation and natural disaster mitigation mapping. NV5 Geospatial, UCSD, NRCS, USGS 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 EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION > DIGITAL ELEVATION/TERRAIN MODEL (DEM) 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 platform Global Change Master Directory (GCMD) Platform Keywords 23.3 DEMs - partner (no harvest) project InPort otherRestrictions Cite As: OCM Partners, [Date of Access]: 2021 - 2022 UCSD/USGS Lidar DEM: Sierra Nevada, CA [Data Date Range], https://www.fisheries.noaa.gov/inport/item/74863. 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 2021 - 2022 UCSD/USGS Lidar: Sierra Nevada, CA NOAA/NMFS/EDM 79931 crossReference grid eng; US elevation -121.437338 -120.380923 38.486708 39.270645 CA_SierraNevada_2 (Work Unit 300058) Dates of collection for CA_SierraNevada_2 (Work Unit 300058) | Currentness: Ground Condition 2021-11-16 2021-12-01 -121.05769 -120.175741 37.786625 38.498961 CA_SierraNevada_3 (Work Unit 300059) Dates of collection for CA_SierraNevada_3 (Work Unit 300059) | Currentness: Ground Condition 2021-11-23 2021-12-02 -120.731563 -119.933233 38.048147 39.438582 CA_SierraNevada_5 (Work Unit 300245) Dates of collection for CA_SierraNevada_5 (Work Unit 300245) | Currentness: Ground Condition 2021-11-12 2022-08-22 -119.106238 -117.885824 35.720918 36.510997 CA_SierraNevada_9 (Work Unit 300364) Dates of collection for CA_SierraNevada_9 (Work Unit 300364) | Currentness: Ground Condition 2022-06-19 2022-08-31 -119.002111 -117.874114 34.770761 35.740953 CA_SierraNevada_10 (Work Unit 300365) Dates of collection for CA_SierraNevada_10 (Work Unit 300365) | Currentness: Ground Condition 2022-06-19 2022-08-30 -120.060684 -119.322758 36.868443 38.221184 CA_SierraNevada_11 (Work Unit 300459) Dates of collection for CA_SierraNevada_11 (Work Unit 300459) | Currentness: Ground Condition 2022-06-02 2022-08-26 -120.64747 -119.938561 37.107001 39.333061 CA_SierraNevada_12 (Work Unit 300460) Dates of collection for CA_SierraNevada_12 (Work Unit 300460) | Currentness: Ground Condition 2021-11-18 2022-08-25 -121.862591 -120.926724 39.17323 40.005482 CA_SierraNevada_1 (Work Unit 300057) Dates of collection for CA_SierraNevada_1 (Work Unit 300057) | Currentness: Ground Condition 2021-11-07 2021-11-29 -121.620049 -120.300979 38.927053 40.438079 CA_SierraNevada_4 (Work Unit 300244) Dates of collection for CA_SierraNevada_4 (Work Unit 300244) | Currentness: Ground Condition 2021-11-03 2021-12-05 -120.995495 -119.962807 39.215808 40.209573 CA_SierraNevada_6 (Work Unit 300246) Dates of collection for CA_SierraNevada_6 (Work Unit 300246) | Currentness: Ground Condition 2021-11-03 2022-08-19 -121.836463 -119.927303 39.710308 40.662722 CA_SierraNevada_7 (Work Unit 300271) Dates of collection for CA_SierraNevada_7 (Work Unit 300271) | Currentness: Ground Condition 2021-11-04 2022-08-24 -120.061858 -118.902833 38.008265 39.333061 CA_SierraNevada_8 (Work Unit 300363) Dates of collection for CA_SierraNevada_8 (Work Unit 300363) | Currentness: Ground Condition 2021-11-18 2022-08-25 -119.513796 -118.280195 37.065474 38.259724 CA_SierraNevada_13 (Work Unit 300461) Dates of collection for CA_SierraNevada_13 (Work Unit 300461) | Currentness: Ground Condition 2022-06-04 2022-09-17 -119.628676 -118.028538 36.224812 37.321064 CA_SierraNevada_14 (Work Unit 300462) Dates of collection for CA_SierraNevada_14 (Work Unit 300462) | Currentness: Ground Condition 2022-06-04 2022-09-23 USGS Contract No. 140G0221D0012 Raster File Type = TIFF Bit Depth/Pixel Type = 32-bit float Raster Cell Size = 0.5 meter Interpolation or Resampling Technique = Triangulated Irregular Network Required Vertical Accuracy = 19.6 cm NVA 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 U.S. Geological Survey 12201 Sunrise Valley Drive Reston VA 20191 USA https://usgs.gov WWW:LINK-1.0-http--link USGS Home Home page for USGS information distributor https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=10262/details/10262 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://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/CA_SierraNevada_B22/ WWW:LINK-1.0-http--link Bulk Download Bulk download of data files in GeoTIFF format, UTM Zones 10N and 11N NAD83(2011), meters coordinates and elevations in NAVD88 (Geoid18) meters. download dataset Horizontal Positional Accuracy Lidar horizontal accuracy is a function of Global Navigation Satellite System (GNSS) derived positional error, flying altitude, and INS derived attitude error. The obtained RMSEr value is multiplied by a conversion factor of 1.7308 to yield the horizontal component of the National Standards for Spatial Data Accuracy (NSSDA) reporting standard where a theoretical point will fall within the obtained radius 95 percent of the time. Based on a flying altitude of 2,500 meters, an IMU error of 0.002 decimal degrees, and a GNSS positional error of 0.019 meters, these blocks were produced to meet 0.27 meters horizontal accuracy at the 95% confidence level or 16 cm RMSEr. CA_SierraNevada_1_2022 (Work Unit 300057) CA_SierraNevada_2_2022 (Work Unit 300058) CA_SierraNevada_3_2022 (Work Unit 300059) CA_SierraNevada_4_2022 (Work Unit 300244) CA_SierraNevada_5_2022 (Work Unit 300245) CA_SierraNevada_6_2022 (Work Unit 300246) CA_SierraNevada_7_2022 (Work Unit 300271) CA_SierraNevada_8_2022 (Work Unit 300363) - Based on a flying altitude of 2,500 meters, an IMU error of 0.003 decimal degrees, and a GNSS positional error of 0.023 meters, this project was produced to meet 0.410 meters horizontal accuracy at the 95% confidence level or 23.5 cm RMSEr. CA_SierraNevada_9_2022 (Work Unit 300364) - This data set was produced to meet +/- 0.509 m at the 95% confidence level or 29 cm RMSEr. CA_SierraNevada_10_2022 (Work Unit 300365) - This data set was produced to meet +/- 0.509 m at a 95% confidence level or 29 cm RMSEr. CA_SierraNevada_11_2022 (Work Unit 300459) - Based on a flying altitude of 2,500 meters, an IMU error of 0.002 decimal degrees, and a GNSS positional error of 0.027 meters, this project was produced to meet 0.274 meters horizontal accuracy at the 95% confidence level or 15.8 cm RMSEr. CA_SierraNevada_12_2022 (Work Unit 300460) - Based on a flying altitude of 2,500 meters, an IMU error of 0.002 decimal degrees, and a GNSS positional error of 0.023 meters, this project was produced to meet 0.273 meters horizontal accuracy at the 95% confidence level or 15.8 cm RMSEr. CA_SierraNevada_13_2022 (Work Unit 300461) - Based on a flying altitude of 2,500 meters, an IMU error of 0.003 decimal degrees, and a GNSS positional error of 0.023 meters, this project was produced to meet 0.407 meters horizontal accuracy at the 95% confidence level or 23.5 cm RMSEr. CA_SierraNevada_14_2022 (Work Unit 300462) - . Based on a flying altitude of 2,500 meters, an IMU error of 0.002 decimal degrees, and a GNSS positional error of 0.023 meters, this project was produced to meet 0.273 meters horizontal accuracy at the 95% confidence level or 15.8 cm RMSEr. 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. The specifications require that classified Non-vegetated Vertical Accuracy (NVA) be computed from the derived DEMs. USGS DEM Determined Vertical Accuracy: Non-Vegetated Vertical Accuracy (NVA) = 5.04 cm RMSE Vegetated Vertical Accuracy (VVA) = 24.69 cm at 95th Percentile Completeness Report A visual qualitative assessment was performed to ensure data completeness. No void areas or missing data exist. The raw point cloud is of good quality and data passes Non-Vegetated Vertical Accuracy specifications. Conceptual Consistency DEM files were tested by NV5 for vertical accuracy. All data is seamless from one tile to the next, no gaps or no data areas. The NOAA Office for Coastal Management (OCM) ingested references to the USGS GeoTIFF files that are hosted on Amazon Web Services (AWS), into the Digital Coast Data Access Viewer (DAV). The DAV accesses the raster data as it resides on AWS. Lidar Pre-Processing: 1. Review flight lines and data to ensure complete coverage of the study area and positional accuracy of the laser points. 2. Resolve kinematic corrections for aircraft position data using kinematic aircraft GPS and static ground GPS data. 3. Develop a smoothed best estimate of trajectory (SBET) file that blends post-processed aircraft position with sensor head position and attitude recorded throughout the survey. 4. Calculate laser point position by associating SBET position to each laser point return time, scan angle, intensity, etc. Create raw laser point cloud data for the entire survey in *.las format. Convert data to orthometric elevations by applying a Geoid 18 correction. 5. Import raw laser points into manageable blocks to perform manual relative accuracy calibration and filter erroneous points. Classify ground points for individual flight lines. 6. Using ground classified points per each flight line, test the relative accuracy. Perform automated line-to-line calibrations for system attitude parameters (pitch, roll, heading), mirror flex (scale) and GPS/IMU drift. Calculate calibrations on ground classified points from paired flight lines and apply results to all points in a flight line. Use every flight line for relative accuracy calibration. 7. Adjust the point cloud by comparing ground classified points to supplemental ground control points. 2022-06-30T00:00:00 Lidar Post-Processing: 1. Classify data to ground and other client designated classifications using proprietary classification algorithms. 2. Manually QC data classification 3. After completion of classification and final QC approval, calculate final NVA and VVA values for the project using ground control quality check points. Final density information will also be calculated. 2022-06-30T00:00:00 Hydro-flattening Breaklines and Hydro-flattened DEM creation: Water boundary polygons were developed using an algorithm which weights lidar-derived slopes, intensities, and return densities to detect the water's edge. The water's edge was then manually reviewed and edited as necessary. Elevations were assigned to the water’s edge through neighborhood statistics identifying the lowest lidar return from the water surface. Lakes were assigned a consistent elevation for an entire polygon while rivers were assigned consistent elevations on opposing banks and smoothed to ensure downstream flow through the entire river channel. These breaklines were incorporated into the hydro-flattened DEM by enforcing triangle edges (adjacent to the breakline) to the elevation values derived from the breakline. This implementation corrected interpolation along the hard edge. Breaklines were also used to classify all ground points within the identified water bodies to class 9 (water). 2022-06-30T00:00:00 The NOAA Office for Coastal Management (OCM) created references to the USGS GeoTIFF files that were ingested into the NOAA Digital Coast Data Access Viewer (DAV). No changes were made to the data. The DAV will access the raster data as it resides on Amazon Web Services (AWS). These are the GeoTIFF files that are being accessed: https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/CA_SierraNevada_B22/CA_SierraNevada_1_2022/TIFF/ https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/CA_SierraNevada_B22/CA_SierraNevada_2_2022/TIFF/ https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/CA_SierraNevada_B22/CA_SierraNevada_3_2022/TIFF/ https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/CA_SierraNevada_B22/CA_SierraNevada_4_2022/TIFF/ https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/CA_SierraNevada_B22/CA_SierraNevada_5_2022/TIFF/ https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/CA_SierraNevada_B22/CA_SierraNevada_6_2022/TIFF/ https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/CA_SierraNevada_B22/CA_SierraNevada_7_2022/TIFF/ https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/CA_SierraNevada_B22/CA_SierraNevada_8_2022/TIFF/ https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/CA_SierraNevada_B22/CA_SierraNevada_9_2022/TIFF/ https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/CA_SierraNevada_B22/CA_SierraNevada_10_2022/TIFF/ https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/CA_SierraNevada_B22/CA_SierraNevada_11_2022/TIFF/ https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/CA_SierraNevada_B22/CA_SierraNevada_12_2022/TIFF/ https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/CA_SierraNevada_B22/CA_SierraNevada_13_2022/TIFF/ https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/CA_SierraNevada_B22/CA_SierraNevada_14_2022/TIFF/ 2025-02-12T00:00:00 Office for Coastal Management processor USGS GeoTIFF Files - CA_SierraNevada_1 USGS https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/CA_SierraNevada_B22/CA_SierraNevada_1_2022/TIFF/ WWW:LINK-1.0-http--link USGS GeoTIFF Files for CA_SierraNevada_1 Source Citation URL information publisher USGS GeoTIFF Files - CA_SierraNevada_10 USGS https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/CA_SierraNevada_B22/CA_SierraNevada_10_2022/TIFF/ WWW:LINK-1.0-http--link USGS GeoTIFF Files for CA_SierraNevada_10 Source Citation URL information publisher USGS GeoTIFF Files - CA_SierraNevada_11 USGS https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/CA_SierraNevada_B22/CA_SierraNevada_11_2022/TIFF/ WWW:LINK-1.0-http--link USGS GeoTIFF Files for CA_SierraNevada_11 Source Citation URL information publisher USGS GeoTIFF Files - CA_SierraNevada_12 USGS https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/CA_SierraNevada_B22/CA_SierraNevada_12_2022/TIFF/ WWW:LINK-1.0-http--link USGS GeoTIFF Files for CA_SierraNevada_12 Source Citation URL information publisher USGS GeoTIFF Files - CA_SierraNevada_13 USGS https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/CA_SierraNevada_B22/CA_SierraNevada_13_2022/TIFF/ WWW:LINK-1.0-http--link USGS GeoTIFF Files for CA_SierraNevada_13 Source Citation URL information publisher USGS GeoTIFF Files - CA_SierraNevada_14 USGS https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/CA_SierraNevada_B22/CA_SierraNevada_14_2022/TIFF/ WWW:LINK-1.0-http--link USGS GeoTIFF Files for CA_SierraNevada_14 Source Citation URL information publisher USGS GeoTIFF Files - CA_SierraNevada_2 USGS https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/CA_SierraNevada_B22/CA_SierraNevada_2_2022/TIFF/ WWW:LINK-1.0-http--link USGS GeoTIFF Files for CA_SierraNevada_2 Source Citation URL information publisher USGS GeoTIFF Files - CA_SierraNevada_3 USGS https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/CA_SierraNevada_B22/CA_SierraNevada_3_2022/TIFF/ WWW:LINK-1.0-http--link USGS GeoTIFF Files for CA_SierraNevada_3 Source Citation URL information publisher USGS GeoTIFF Files - CA_SierraNevada_4 USGS https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/CA_SierraNevada_B22/CA_SierraNevada_4_2022/TIFF/ WWW:LINK-1.0-http--link USGS GeoTIFF Files for CA_SierraNevada_4 Source Citation URL information publisher USGS GeoTIFF Files - CA_SierraNevada_5 USGS https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/CA_SierraNevada_B22/CA_SierraNevada_5_2022/TIFF/ WWW:LINK-1.0-http--link USGS GeoTIFF Files for CA_SierraNevada_5 Source Citation URL information publisher USGS GeoTIFF Files - CA_SierraNevada_6 USGS https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/CA_SierraNevada_B22/CA_SierraNevada_6_2022/TIFF/ WWW:LINK-1.0-http--link USGS GeoTIFF Files for CA_SierraNevada_6 Source Citation URL information publisher USGS GeoTIFF Files - CA_SierraNevada_7 USGS https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/CA_SierraNevada_B22/CA_SierraNevada_7_2022/TIFF/ WWW:LINK-1.0-http--link USGS GeoTIFF Files for CA_SierraNevada_7 Source Citation URL information publisher USGS GeoTIFF Files - CA_SierraNevada_8 USGS https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/CA_SierraNevada_B22/CA_SierraNevada_8_2022/TIFF/ WWW:LINK-1.0-http--link USGS GeoTIFF Files for CA_SierraNevada_8 Source Citation URL information publisher USGS GeoTIFF Files - CA_SierraNevada_9 USGS https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/CA_SierraNevada_B22/CA_SierraNevada_9_2022/TIFF/ WWW:LINK-1.0-http--link USGS GeoTIFF Files for CA_SierraNevada_9 Source Citation URL information publisher