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snippet: This lidar data was required by National Oceanic and Atmospheric Administration (NOAA) and the National Geodetic Survey (NGS), Remote Sensing Division Coastal Mapping Program (CMP) to enable accurate and consistent measurement of the national shoreline. The CMP works to provide a regularly updated and consistent national shoreline to define America's marine territorial limits and manage coastal resources. All data products produced are supplied as ready to use products for a Geographic Information System (GIS) and CARIS, projected in Universal Transverse Mercator (UTM) 17 N, North American Datum 1983 (NAD83) and vertically reduced to Mean Lower Low Water (MLLW).
summary: This lidar data was required by National Oceanic and Atmospheric Administration (NOAA) and the National Geodetic Survey (NGS), Remote Sensing Division Coastal Mapping Program (CMP) to enable accurate and consistent measurement of the national shoreline. The CMP works to provide a regularly updated and consistent national shoreline to define America's marine territorial limits and manage coastal resources. All data products produced are supplied as ready to use products for a Geographic Information System (GIS) and CARIS, projected in Universal Transverse Mercator (UTM) 17 N, North American Datum 1983 (NAD83) and vertically reduced to Mean Lower Low Water (MLLW).
accessInformation: NOAA Office for Coastal Management (NOAA/OCM) 2234 South Hobson Ave Charleston, SC 29405-2413 coastal.info@noaa.gov (843) 740-1202 https://coast.noaa.gov
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description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN><SPAN>The NOAA Hurricane Irma Supplemental Topobathymetric LiDAR Project area data were collected by Quantum Spatial, Inc. (QSI) using three Riegl systems: a Riegl VQ-880-G+, a Riegl VQ-880-GII, and a Riegl VQ-880-GH. The NOAA Hurricane Irma project acquisition dates spanned from 20181120-20190323 in 85 missions. This project dataset includes topobathymetric data in a LAS format 1.4, point data record format 6, following classifications in accordance with project specifications and the American Society for Photogrammetry and Remote Sensing (ASPRS) classification standards. The NOAA Hurricane Irma Project data includes all LiDAR returns. An automated grounding classification algorithm was used to determine bare earth and submerged topography point classification. The automated grounding was followed with manual editing. Submerged topography elevations were adjusted to correct for sensor depth bias on a per sensor basis using NOAA provided ground truth data. Intensity values of bathymetric bottom returns were normalized for water depth. Total propagated uncertainty (TPU) values were calculated for the bathymetry data. The full workflow used for this project will be documented in the NOAA Hurricane Irma final technical report, provided upon project completion.</SPAN></SPAN></P><P STYLE="font-size:16ptmargin:0 0 0 0;"><SPAN><SPAN>This layer has a resolution of 2m in order to speed up display speeds, a 1m version is available upon request.</SPAN></SPAN></P><P><SPAN><SPAN /></SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN /></P></DIV></DIV></DIV>
licenseInfo: <DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>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. These data are not to be used for navigation. While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.</SPAN></SPAN></P><P><SPAN /></P></DIV></DIV></DIV>
catalogPath:
title: 2018-2019 NOAA NGS Topobathy LiDAR
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url:
tags: ["NOAA","NGS","CMP","FKNMS","Florida Keys National Marine Sanctuary","Bottom Habitats Study","United States","LiDAR","Riegl VQ-880-G+","Riegl VQ-880-GII","Riegl VQ-880-GH","Quantum Spatial","Inc","Seafloor Survey","Marine Geology","Hurricane Irma","topobathy","LAS"]
culture: en-US
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minScale: 150000000
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