Digital Elevation Model (DEM) of Summerland Ledge, Florida, 2022
A digital elevation model (DEM) was created from underwater images collected at Summerland Ledge (SL), Florida, in July 2022 using the SfM (Structure-from-Motion) Quantitative Underwater Imaging Device with 5 cameras (SQUID-5) system. The underwater images were processed using SfM photogrammetry techniques into a classified two-class ('unclassified' and 'low noise') 3D point cloud. The DEM was created in Metashape (ver. 1.6.6) from the point cloud and includes points from both classes. The DEM covers a rectangular area of seafloor approximately 450x180 meters (m) (0.081 square kilometers [km]) in size and was saved as a Geographic Tagged Image File Format (GeoTIFF) raster at 1-centimeter (cm) resolution.
Complete Metadata
| accessLevel | public |
|---|---|
| bureauCode |
[
"010:12"
]
|
| contactPoint |
{
"fn": "SPCMSC Data Management Group",
"@type": "vcard:Contact",
"hasEmail": "mailto:gs-g-spcmsc_data_inquiries@usgs.gov"
}
|
| description | A digital elevation model (DEM) was created from underwater images collected at Summerland Ledge (SL), Florida, in July 2022 using the SfM (Structure-from-Motion) Quantitative Underwater Imaging Device with 5 cameras (SQUID-5) system. The underwater images were processed using SfM photogrammetry techniques into a classified two-class ('unclassified' and 'low noise') 3D point cloud. The DEM was created in Metashape (ver. 1.6.6) from the point cloud and includes points from both classes. The DEM covers a rectangular area of seafloor approximately 450x180 meters (m) (0.081 square kilometers [km]) in size and was saved as a Geographic Tagged Image File Format (GeoTIFF) raster at 1-centimeter (cm) resolution. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Digital Data",
"format": "XML",
"accessURL": "https://doi.org/10.5066/P149NXTA",
"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.b3530dbb-acab-46f3-bb56-9537d4484201.xml"
}
]
|
| identifier | http://datainventory.doi.gov/id/dataset/USGS_b3530dbb-acab-46f3-bb56-9537d4484201 |
| keyword |
[
"CMHRP",
"Coastal and Marine Hazards and Resources Program",
"PCMSC",
"Pacific Coastal and Marine Science Center",
"Physical Habitats and Geomorphology",
"SPCMSC",
"St. Petersburg Coastal and Marine Science Center",
"State of Florida",
"Summerland Ledge",
"U.S. Geological Survey",
"USGS",
"USGS:b3530dbb-acab-46f3-bb56-9537d4484201",
"coral reefs",
"elevation",
"geospatial datasets",
"oceans",
"reef ecosystems",
"remote sensing",
"seabed",
"structure from motion",
"visible light imaging"
]
|
| modified | 2024-08-09T00:00:00Z |
| publisher |
{
"name": "U.S. Geological Survey",
"@type": "org:Organization"
}
|
| spatial | -81.44786086, 24.53903098, -81.44153260, 24.54175894 |
| theme |
[
"Geospatial"
]
|
| title | Digital Elevation Model (DEM) of Summerland Ledge, Florida, 2022 |
