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2019 NOAA NGS Topobathy Lidar: Chesapeake Bay, MD

Published by National Geodetic Survey | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: January 23, 2026 | Last Modified: 2021-01-01T00:00:00.000+00:00
NOAA Chesapeake Bay MD1902 and MD1903 Topobathymetric lidar data were collected by NV5 Geospatial (NV5) using a Leica Chiroptera 4x system. The MD1903 acquisition spanned from 20191109-20191115 in 5 missions. The MD1902 acquisition spanned from 20191109-20191116 in 6 missions. The datasets include topobathymetric data in LAS format 1.4, point data record format 6, with the following classifications in accordance with project specifications and the American Society for Photogrammetry and Remote Sensing (ASPRS) classification standards: 1 - unclassified 2 - ground 7 - noise 40 - bathymetric bottom or submerged topography 41 - water surface 43 - submerged feature 45 - water column 46 - overlap bathy bottom - temporally different from a separate lift 71 - unclassified associated with areas of overlap bathy bottom/temporal bathymetric differences 72 - ground associated with areas of overlap bathy bottom/temporal bathymetric differences 81 - water surface associated with areas of overlap bathy bottom/temporal bathymetric differences 85 - water column associated with areas of overlap bathy bottom/temporal bathymetric differences 1 Overlap - edge clip 1 Withheld- green sensor returns within topographic areas 42 Synthetic - synthetic water surface These data sets also includes lidar intensity values, number of returns, return number, time, and scan angle. The 100 m buffered NOAA Chesapeake Bay MD1902 project area covers approximately 260.195 square kilometers in an area encompassing Severn River to Rhode River near Annapolis, Maryland. LAS files were compiled in 500 m x 500 m tiles. The MD1902 dataset is comprised of 1,460 - 500 m x 500 m LAS tiles. The 100 m buffered NOAA Chesapeake Bay MD1903 project area covers approximately 260.195 square kilometers in an area encompassing West River to Dares Beach near Annapolis, Maryland. LAS files were compiled in 500 m x 500 m tiles. The MD1903 dataset is comprised of 1,569 - 500 m x 500 m LAS tiles.

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Complete Metadata
@type dcat:Dataset
accessLevel non-public
contactPoint 
                                            {
  "fn": "NOAA Office for Coastal Management",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:coastal.info@noaa.gov"
}
describedByType application/octet-steam
description NOAA Chesapeake Bay MD1902 and MD1903 Topobathymetric lidar data were collected by NV5 Geospatial (NV5) using a Leica Chiroptera 4x system. The MD1903 acquisition spanned from 20191109-20191115 in 5 missions. The MD1902 acquisition spanned from 20191109-20191116 in 6 missions. The datasets include topobathymetric data in LAS format 1.4, point data record format 6, with the following classifications in accordance with project specifications and the American Society for Photogrammetry and Remote Sensing (ASPRS) classification standards: 1 - unclassified 2 - ground 7 - noise 40 - bathymetric bottom or submerged topography 41 - water surface 43 - submerged feature 45 - water column 46 - overlap bathy bottom - temporally different from a separate lift 71 - unclassified associated with areas of overlap bathy bottom/temporal bathymetric differences 72 - ground associated with areas of overlap bathy bottom/temporal bathymetric differences 81 - water surface associated with areas of overlap bathy bottom/temporal bathymetric differences 85 - water column associated with areas of overlap bathy bottom/temporal bathymetric differences 1 Overlap - edge clip 1 Withheld- green sensor returns within topographic areas 42 Synthetic - synthetic water surface These data sets also includes lidar intensity values, number of returns, return number, time, and scan angle. The 100 m buffered NOAA Chesapeake Bay MD1902 project area covers approximately 260.195 square kilometers in an area encompassing Severn River to Rhode River near Annapolis, Maryland. LAS files were compiled in 500 m x 500 m tiles. The MD1902 dataset is comprised of 1,460 - 500 m x 500 m LAS tiles. The 100 m buffered NOAA Chesapeake Bay MD1903 project area covers approximately 260.195 square kilometers in an area encompassing West River to Dares Beach near Annapolis, Maryland. LAS files were compiled in 500 m x 500 m tiles. The MD1903 dataset is comprised of 1,569 - 500 m x 500 m LAS tiles.
distribution 
                                            [
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    "downloadURL": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/9424/",
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    "downloadURL": "https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=9424",
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identifier gov.noaa.nmfs.inport:65553
issued 2021-01-01T00:00:00.000+00:00
keyword 
                                            [
  "EARTH SCIENCE > LAND SURFACE",
  "EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY",
  "EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION",
  "EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION > DIGITAL ELEVATION/TERRAIN MODEL (DEM)",
  "EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > BATHYMETRY",
  "EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > BATHYMETRY > COASTAL BATHYMETRY",
  "EARTH SCIENCE > OCEANS > COASTAL PROCESSES > BEACHES",
  "EARTH SCIENCE > OCEANS > COASTAL PROCESSES > COASTAL ELEVATION",
  "EARTH SCIENCE > SPECTRAL/ENGINEERING > LIDAR",
  "CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MARYLAND",
  "Airplane > Airplane",
  "DOC/NOAA/NOS/NGS > National Geodetic Survey, National Ocean Service, NOAA, U.S. Department of Commerce",
  "NGS Lidar"
]
landingPage https://www.fisheries.noaa.gov/inport/item/65553
language 
                                            []
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2021-01-01T00:00:00.000+00:00
publisher 
                                            {
  "name": "National Geodetic Survey",
  "@type": "org:Organization"
}
references 
                                            [
  "https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ngs/dmp/pdf/65553.pdf"
]
rights otherRestrictions, unclassified
spatial -76.423364,38.855294,-76.648208,39.114912
temporal 2019-11-09T00:00:00+00:00/2019-11-16T00:00:00+00:00
title 2019 NOAA NGS Topobathy Lidar: Chesapeake Bay, MD

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