Topographic Lidar Survey of the Chandeleur Islands, Louisiana, February 6, 2012 -- Bare Earth DEMs
A topographic Lidar survey was conducted on February 6, 2012, over the Chandeleur Islands, Louisiana. The data were collected at a nominal pulse space of 0.5-meter (m) and processed to identify bare earth elevations. Bare earth digital elevation models (DEMs) were generated based on these data. Digital Aerial Solutions, LLC, was contracted by the U.S. Geological Survey (USGS) to collect and process the lidar data.
The bare earth DEMs are 32-bit floating point ERDAS Imagine (IMG) files with a horizontal spatial resolution of 1-m by 1-m. They are in decimal degree geographic coordinates, North American Datum 1983, National Spatial Reference System 2007 (NAD83 NSRS2007)). Their vertical datum is North American Vertical Datum 1988, Geoid 2009, Geodetic Reference System 1980 (NAVD88 GEOID09 GRS80) in meters. Thirty-three DEMs, based on a 2-kilometer (km) by 2-km tiling scheme, cover the entire survey area.
These lidar data are available to Federal, State and local governments, emergency-response officials, resource managers, and the general public.
Complete Metadata
| accessLevel | public |
|---|---|
| bureauCode |
[
"010:12"
]
|
| contactPoint |
{
"fn": "Nathaniel Plant",
"@type": "vcard:Contact",
"hasEmail": "mailto:nplant@usgs.gov"
}
|
| description | A topographic Lidar survey was conducted on February 6, 2012, over the Chandeleur Islands, Louisiana. The data were collected at a nominal pulse space of 0.5-meter (m) and processed to identify bare earth elevations. Bare earth digital elevation models (DEMs) were generated based on these data. Digital Aerial Solutions, LLC, was contracted by the U.S. Geological Survey (USGS) to collect and process the lidar data. The bare earth DEMs are 32-bit floating point ERDAS Imagine (IMG) files with a horizontal spatial resolution of 1-m by 1-m. They are in decimal degree geographic coordinates, North American Datum 1983, National Spatial Reference System 2007 (NAD83 NSRS2007)). Their vertical datum is North American Vertical Datum 1988, Geoid 2009, Geodetic Reference System 1980 (NAVD88 GEOID09 GRS80) in meters. Thirty-three DEMs, based on a 2-kilometer (km) by 2-km tiling scheme, cover the entire survey area. These lidar data are available to Federal, State and local governments, emergency-response officials, resource managers, and the general public. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Digital Data",
"format": "XML",
"accessURL": "http://pubs.usgs.gov/ds/0840/",
"mediaType": "application/http",
"description": "Landing page for access to the data"
},
{
"@type": "dcat:Distribution",
"title": "Original Metadata",
"format": "XML",
"mediaType": "text/xml",
"description": "The metadata original format",
"downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.3820d1b6-7b72-4838-9ae2-811a3851b58a.xml"
}
]
|
| identifier | http://datainventory.doi.gov/id/dataset/USGS_3820d1b6-7b72-4838-9ae2-811a3851b58a |
| keyword |
[
"Barrier Islands",
"COASTAL PROCESSES > BEACHES",
"Chandeleur Islands",
"DEM",
"DOI/USGS/CMG > COASTAL AND MARINE GEOLOGY, U.S. GEOLOGICAL SURVEY, U.S. DEPARTMENT OF INTERIOR",
"Digital Elevation Model",
"Gulf of Mexico",
"Gulf of Mexico Barrier Islands",
"LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION",
"LIDAR",
"Lidar",
"Lidar > LIGHT DETECTION AND RANGING",
"Louisiana",
"OCEAN > COASTAL PROCESSES > BARRIER ISLANDS",
"USGS:3820d1b6-7b72-4838-9ae2-811a3851b58a",
"United States",
"altimetry",
"bare earth",
"bathymetry and elevation",
"digital elevation models",
"distributions",
"elevation data",
"hydrology",
"laser altimetry",
"model",
"remote sensing",
"topographic mapping",
"topography"
]
|
| modified | 2020-10-13T00:00:00Z |
| publisher |
{
"name": "U.S. Geological Survey",
"@type": "org:Organization"
}
|
| spatial | -88.9137598, 29.7444381, -88.8113368, 30.0342555 |
| theme |
[
"Geospatial"
]
|
| title | Topographic Lidar Survey of the Chandeleur Islands, Louisiana, February 6, 2012 -- Bare Earth DEMs |
