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This portion of the data release presents a digital surface model (DSM) and hillshade image of the intertidal zone at Lone Tree Point, Kiket Bay, WA. The DSM has a resolution of 4 centimeters per pixel and was derived from structure-from-motion (SfM) processing of aerial imagery collected with an unmanned aerial system (UAS) on 2019-06-05. Unlike a digital elevation model (DEM), the DSM represents the elevation of the highest object within the bounds of a cell. Vegetation, buildings and other objects have not been removed from the data. In addition, data artifacts resulting from noise in the original imagery have not been removed. The raw imagery used to create the DSM was acquired using a UAS fitted with a Ricoh...
Tags: Bathymetry and Elevation,
CHMRP,
Coastal and Marine Hazards and Resources Program,
Kiket Bay,
Lone Tree Point, All tags...
PCMSC,
Pacific Coastal and Marine Science Center,
Salish Sea,
SfM,
Skagit Bay,
Skagit County,
State of Washington,
Structure-from-motion,
Swinomish Reservation,
U.S. Geological Survey,
UAS,
USGS,
Unmanned aerial system,
aerial and satellite photography,
aerial photography,
altimetry,
coastal processes,
elevation,
geomorphology,
geoscientificInformation,
geospatial datasets,
image mosaics,
orthophotography,
photography,
remote sensing,
remote sensing,
structure from motion,
topographic maps,
topography, Fewer tags
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An unmanned aerial system (UAS) was used to acquire high-resolution imagery of the intertidal zone at West Whidbey Island, Washington on June 4, 2019. This imagery was processed using structure-from-motion (SfM) photogrammetric techniques to derive a high-resolution digital surface model (DSM), orthomosaic imagery, and topographic point clouds. In order to maximize the extent of the subaerially exposed area, the survey was timed to coincide with a spring low tide occurring at approximately 18:02 Universal Coordinated Time (UTC) (11:02 Pacific Daylight Time (PDT)), with a predicted water level of -0.74 meters below mean lower-low water (MLLW) at the Sunset Beach NOAA subordinate tide station (station ID 9447951)....
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This portion of the data release presents a digital surface model (DSM) and hillshade image of the intertidal zone at West Whidbey Island, WA. The DSM has a resolution of 4 centimeters per pixel and was derived from structure-from-motion (SfM) processing of aerial imagery collected with an unmanned aerial system (UAS) on 2019-06-04. Unlike a digital elevation model (DEM), the DSM represents the elevation of the highest object within the bounds of a cell. Vegetation, buildings and other objects have not been removed from the data. In addition, data artifacts resulting from noise in the original imagery have not been removed. The raw imagery used to create the DSM was acquired using a UAS fitted with a Ricoh GR II...
Tags: Bathymetry and Elevation,
CHMRP,
Coastal and Marine Hazards and Resources Program,
Hastie Lake County Park,
Island County, All tags...
PCMSC,
Pacific Coastal and Marine Science Center,
Salish Sea,
SfM,
State of Washington,
Strait of Juan de Fuca,
Structure-from-motion,
U.S. Geological Survey,
UAS,
USGS,
Unmanned aerial system,
Whidbey Island,
aerial and satellite photography,
aerial photography,
altimetry,
coastal processes,
elevation,
geomorphology,
geoscientificInformation,
geospatial datasets,
image mosaics,
orthophotography,
photography,
remote sensing,
remote sensing,
structure from motion,
topographic maps,
topography, Fewer tags
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This portion of the data release presents a high-resolution orthomosaic images of the intertidal zone at Post Point, Bellingham Bay, WA. The orthomosaics were derived from structure-from-motion (SfM) processing of aerial imagery collected with an unmanned aerial system (UAS) on 2019-06-06. The orthomosaics are presented with two resolutions: one image, covering the entire survey area, has a resolution of 2 centimeters per pixel; the other image which was derived from a lower-altitude flight, covers an inset area within the main survey area and has a resolution of 1 centimeter per pixel. The raw imagery used to create the orthomosaics was acquired using a UAS fitted with a Ricoh GR II digital camera featuring a global...
Tags: Bathymetry and Elevation,
Bellingham,
Bellingham Bay,
CHMRP,
Coastal and Marine Hazards and Resources Program, All tags...
Fairhaven,
PCMSC,
Pacific Coastal and Marine Science Center,
Post Point,
Puget Sound,
Salish Sea,
SfM,
South Bellingham,
State of Washington,
Structure-from-motion,
U.S. Geological Survey,
UAS,
USGS,
Unmanned aerial system,
Whatcom County,
aerial and satellite photography,
aerial photography,
altimetry,
coastal processes,
elevation,
geomorphology,
geoscientificInformation,
geospatial datasets,
image mosaics,
orthophotography,
photography,
remote sensing,
remote sensing,
topographic maps,
topography, Fewer tags
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An unmanned aerial system (UAS) was used to acquire high-resolution imagery of the intertidal zone at Puget Creek and Dickman Mill Park in Tacoma, Washington on June 3, 2019. This imagery was processed using structure-from-motion (SfM) photogrammetric techniques to derive high-resolution digital surface models (DSM), orthomosaic imagery, and topographic point clouds. In order to maximize the extent of the subaerially exposed area, the survey was timed to coincide with a spring low tide occurring at approximately 18:36 Universal Coordinated Time (UTC) (11:36 Pacific Daylight Time (PDT)), with an observed water level of -1.47 meters relative to the NAVD88 vertical datum at the Tacoma NOAA tide station (station ID...
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