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Low altitude (300 meters above ground level (AGL)) digital aerial imagery were acquired on May 4 and 5, 2020, from a manned, fixed-wing aircraft using a Sony A7R 36 Megapixel digital camera, along with precise aircraft location Global Navigation Satellite System (GNSS) data. Data were collected in shore-parallel lines, flying at approximately 50 meters per second and capturing true color imagery at 1 Hertz, resulting in image footprints with approximately 75-80% endlap, 60-70% sidelap, and a ground sample distance (GSD) of 5.3 centimeters. The precise time of each image capture (flash event) was recorded, and the corresponding aircraft position was computed in post-processing from the aircraft navigation GNSS data;...
Tags: CMHRP,
Cape Henlopen,
Cape Henlopen State Park,
Coastal and Marine Hazards and Resources Program,
Delaware, All tags...
Delaware Seashore State Park,
Structure-from-Motion,
U.S. Geological Survey,
USGS,
aerial photography,
coastal processes,
digital elevation models,
earth sciences,
geography,
geomorphology,
geoscientificInformation,
geospatial datasets,
image collections,
imageryBaseMapsEarthCover,
oceans,
remote sensing,
topographic maps,
topography, Fewer tags
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Low altitude (300 meters above ground level (AGL)) digital aerial imagery were acquired on June 11, 2022, from a manned, fixed-wing aircraft using a Sony A7R 36 Megapixel digital camera, along with precise aircraft location Global Navigation Satellite System (GNSS) data. Data were collected in shore-parallel lines, flying at approximately 50 meters per second and capturing true color imagery at 1 Hertz, resulting in image footprints with approximately 75–80% endlap, 60–70% sidelap, and a ground sample distance (GSD) of 5.3 centimeters. The precise time of each image capture (flash event) was recorded, and the corresponding aircraft position was computed in post-processing from the aircraft navigation GNSS data;...
Tags: CMHRP,
Cape Henlopen,
Cape Henlopen State Park,
Coastal and Marine Hazards and Resources Program,
Delaware, All tags...
Delaware Seashore State Park,
Structure-from-Motion,
U.S. Geological Survey,
USGS,
aerial photography,
coastal processes,
digital elevation models,
earth sciences,
geography,
geomorphology,
geoscientificInformation,
geospatial datasets,
image collections,
imageryBaseMapsEarthCover,
oceans,
remote sensing,
topographic maps,
topography, Fewer tags
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Low altitude (300 meters above ground level (AGL)) digital aerial imagery acquired with a piloted fixed-wing aircraft was processed using Structure-from-Motion (SfM) photogrammetry techniques to produce high-resolution three-dimensional (3D) point clouds and digital elevation models (DEMs) and orthomosaic images. This dataset consists of DEMs produced from imagery collected along the Delaware Atlantic coast on June 11, 2022, to monitor coastal change. All horizontal data are provided in the Universal Transverse Mercator (UTM) projected coordinate system, Zone 18 North (18N), referenced to the North American Datum of 1983 (NAD83(2011)), and elevation is referenced to the North American Vertical Datum of 1988 (NAVD88),...
Tags: CMHRP,
Cape Henlopen,
Cape Henlopen State Park,
Coastal and Marine Hazards and Resources Program,
Delaware, All tags...
Delaware Seashore State Park,
Structure-from-Motion,
U.S. Geological Survey,
USGS,
aerial photography,
coastal processes,
digital elevation models,
earth sciences,
elevation,
geography,
geomorphology,
geoscientificInformation,
geospatial datasets,
image collections,
imageryBaseMapsEarthCover,
remote sensing,
topographic maps,
topography, Fewer tags
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Low altitude (300 meters above ground level (AGL)) digital aerial imagery acquired with a piloted fixed-wing aircraft was processed using Structure-from-Motion (SfM) photogrammetry techniques to produce high-resolution three-dimensional (3D) point clouds and digital elevation models (DEMs) and orthomosaic images. This dataset consists of red-green-blue (RGB) orthomosaic images produced from imagery collected along the Delaware Atlantic coast on June 11, 2022, to monitor coastal change. All horizontal data are provided in the Universal Transverse Mercator (UTM) projected coordinate system, Zone 18 North (18N), referenced to the North American Datum of 1983 (NAD83(2011)).
Tags: CMHRP,
Cape Henlopen,
Cape Henlopen State Park,
Coastal and Marine Hazards and Resources Program,
Delaware, All tags...
Delaware Seashore State Park,
Structure-from-Motion,
U.S. Geological Survey,
USGS,
aerial photography,
coastal processes,
digital elevation models,
earth sciences,
geography,
geomorphology,
geoscientificInformation,
geospatial datasets,
image collections,
imageryBaseMapsEarthCover,
oceans,
remote sensing,
topographic maps,
topography, Fewer tags
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Low altitude (300 meters above ground level (AGL)) digital aerial imagery were acquired on June 11, 2022, from a manned, fixed-wing aircraft using a Sony A7R 36 Megapixel digital camera, along with precise aircraft location Global Navigation Satellite System (GNSS) data. Data were collected in shore-parallel lines, flying at approximately 50 meters per second and capturing true color imagery at 1 Hertz, resulting in image footprints with approximately 75-80% endlap, 60-70% sidelap, and a ground sample distance (GSD) of 5.3 centimeters. The precise time of each image capture (flash event) was recorded, and the corresponding aircraft position was computed in post-processing from the aircraft navigation GNSS data;...
Tags: CMHRP,
Cape Henlopen,
Cape Henlopen State Park,
Coastal and Marine Hazards and Resources Program,
Delaware, All tags...
Delaware Seashore State Park,
Structure-from-Motion,
U.S. Geological Survey,
USGS,
aerial photography,
coastal processes,
earth sciences,
geography,
geomorphology,
geoscientificInformation,
geospatial datasets,
image collections,
imageryBaseMapsEarthCover,
oceans,
remote sensing,
topographic maps,
topography, Fewer tags
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