gov.noaa.nmfs.inport:76859 eng UTF8 dataset Elevation Office for Coastal Management 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 2026-09-30T19:28:12 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) point 745908632 EPSG::6319 2024 - 2025 UAS Lidar: Great Bay NERR, NH 2024-2025 UAS lidar NH m10398 2025-08-11 creation publication NOAA/NMFS/EDM 76859 https://www.fisheries.noaa.gov/inport/item/76859 WWW:LINK-1.0-http--link Full Metadata Record View the complete metadata record on InPort for more information about this dataset. information Lidar and imagery was captured for salt marshes in the Great Bay National Estuarine Research Reserve (NERR), New Hampshire, using an uncrewed aerial system (UAS). Eight separate areas were collected, with one area, Odiorne, in April of 2024 and the rest in April of 2025. The DEMs created from the lidar point clouds and the imagery collected are available through the bulk download site, but not through the custom download site. These products are as-is and have not had rigorous QA/QC. The purpose of these lidar data was to produce high accuracy 3D elevation products which will support various modeling, including modeling of the bare earth surface. Great Bay NERR 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 custodian notPlanned EARTH SCIENCE theme Global Change Master Directory (GCMD) Science Keywords 23.3 CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NEW HAMPSHIRE place Global Change Master Directory (GCMD) Location Keywords 23.3 LIDAR > Light Detection and Ranging MULTI-SPECTRAL > Multispectral Camera instrument Global Change Master Directory (GCMD) Instrument Keywords 23.3 UAV > Unmanned Aerial Vehicle platform Global Change Master Directory (GCMD) Platform Keywords 23.3 DOC/NOAA/NOS/OCM > Office of Coastal Management, National Ocean Service, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2017-04-24 publication 8.5 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2026. GCMD Keywords, Version 24. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Lidar project InPort otherRestrictions Cite As: Office for Coastal Management, [Date of Access]: 2024 - 2025 UAS Lidar: Great Bay NERR, NH [Data Date Range], https://www.fisheries.noaa.gov/inport/item/76859. 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. license These data were produced by NOAA and are not subject to copyright protection in the United States. NOAA waives any potential copyright and related rights in these data worldwide through the Creative Commons Zero 1.0 Universal Public Domain Dedication (CC0-1.0). SPDX License: Creative Commons Zero v1.0 Universal (CC0-1.0) otherRestrictions Access Constraints: None 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 vector 10 eng; US oceans -70.927921 -70.918537 43.037588 43.043182 Chapmans | Currentness: Ground Condition 2025-04-15 -70.804781 -70.798783 42.918287 42.922327 Tidemill Creek | Currentness: Ground Condition 2025-04-11 -70.777611 -70.77133 42.96461 42.971415 Philbricks | Currentness: Ground Condition 2025-04-07 -70.854564 -70.848611 42.932519 42.936345 Drakeside | Currentness: Ground Condition 2025-04-17 -70.734254 -70.729062 43.027161 43.030816 Wallis Sands | Currentness: Ground Condition 2025-04-02 -70.810044 -70.802697 42.924051 42.928945 Winnacunnet | Currentness: Ground Condition 2025-04-12 -70.921267 -70.906909 43.071702 43.079991 Lubberland | Currentness: Ground Condition 2025-04-21 -70.734 -70.719 43.03 43.04 Odiorne collection area Dates of collection for the Odiorne dataset | Currentness: Ground Condition 2024-05-21 2024-05-22 LAS/LAZ - LASer LAZ 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://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/10398/index.html WWW:LINK-1.0-http--link https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/10398/index.html Bulk download of data files in LAZ format, UTM 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 https://coast.noaa.gov/dataviewer/#/lidar/search/where:id=10398 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 dataset Vertical Positional Accuracy Root Mean Square Error in Z by area: Chapmans: RMSEz = 4.9 cm, n=9 Drakeside: RMSEz = 4.7 cm, n=10 Tidemill Creek: RMSEz = 1.4 cm, n=9 Wallis Sands: RMSEz = 2.1 cm, n=10 Winnacunnet: RMSEz = 1.7 cm, n=10 Lubberland: RMSE=2.7 cm, n=9 Philbricks: RMSE=2.3 cm, n=10 Lidar was captured using a Riegl miniVUX-3UAV sensor and Sony a6000 Lite RGB camera at an Above Ground Level (AGL) altitude of 75 m, and with a minimum 50% sidelap. Data acquisition occurred within plus or minus 1 hour of predicted low tides, and during leaf-off conditions. Ground control was provided using a total of ten (10) Propeller Aeropoints distributed evenly across each site. Each Aeropoint had a minimum occupation time of 1 hour. 2025-04-01T00:00:00 Acquired lidar was post-processed using LiDARMill, a cloud based lidar software by Phoenix LiDAR Systems. Trajectories were first post-processed through LidarMill's NavLab module to apply both GNSS and IMU corrections to the trajectories. LiDARMill's Spatial Fuser Pipeline then uses the trajectory data generated by NavLab, combined with LiDAR and imagery data, to generate a calibrated, classified and colorized point cloud. Global Mapper v26.1 was used to classify the .las into the following classes using automated and manual workflows, as follows: Class 1 = Unclassified Class 2 = Ground Class 7 = Low Noise Finally a 1-ft Digital Elevation Model (DEM) was created in Blue Marble GlobalMapper v26.1 using a minimum value binning (bin size = 6) grid method, and output as a 32-bit floating-point GeoTIFF formatted raster. No breaklines or hydroflattening processes were developed or applied to the DEM. 2025-05-01T00:00:00 Lidar point cloud data was received by the NOAA Office for Coastal Management (OCM) for provisioning via the Digital Coast. For ingest into the Data Access Viewer, the data were reverse transformed to geographic coordinates in ellipsoid heights, removing the projection and the GEOID18 geoid model. The NOAA Office for Coastal Management (OCM) also received 1 raster DEM file in GeoTiff format from the Great Bay NERR. The bare earth raster file was at a 1 foot grid spacing. The data were in NH State Plane NAD83 (2011), US survey feet coordinates and NAVD88 (Geoid18) elevations in US survey feet. OCM assigned the appropriate EPSG codes (Horiz - 6525, Vert - 6360) and copied the raster files to https for Digital Coast storage and provisioning purposes. 2025-08-11T00:00:00 NOAA Office for Coastal Management (843) 740-1202 coastal.info@noaa.gov processor Processed and classified lidar data 2025-08-11 publication Great Bay NERR originator otherRestrictions Access Constraints: None |