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Ground control point locations for UAS survey of the intertidal zones at Puget Creek and Dickman Mill Park, Tacoma, WA, 2019-06-03 This portion of the data release presents the locations of the temporary ground control points (GCPs) used for the structure-from-motion (SfM) processing of the imagery collected during an unmanned aerial system (UAS) survey of the intertidal zones at Puget Creek and Dickman Mill Park, Tacoma, WA, on 2019-06-03. Twelve temporary ground control points (GCPs) were distributed throughout each survey area to establish survey control. The GCPs consisted of a combination of small square tarps with black-and-white cross patterns and "X" marks placed on the ground using temporary chalk. The GCP positions were measured using post-processed kinematic (PPK) GPS, using corrections from a GPS base station located approximately... Categories: Data; Tags: Bathymetry and Elevation, CHMRP, Coastal and Marine Hazards and Resources Program, Commencement Bay, Dickman Mill, All tags... Dickman Mill Park, PCMSC, Pacific Coastal and Marine Science Center, Pierce County, Puget Creek, Puget Sound, Ruston, Salish Sea, SfM, State of Washington, Structure-from-motion, Tacoma, 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, topographic maps, topography, Fewer tags Orthomosaic imagery for the intertidal zone at Puget Creek and Dickman Mill Park, Tacoma, WA, 2019-06-03 This portion of the data release presents a high-resolution orthomosaic images of the intertidal zones at Puget Creek and Dickman Mill Park, Tacoma, WA. The orthomosaics have a resolution of 1.3 centimeters per pixel and were derived from structure-from-motion (SfM) processing of aerial imagery collected with an unmanned aerial system (UAS) on 2019-06-03. The raw imagery used to create the orthomosaics was acquired using a UAS fitted with a Ricoh GR II digital camera featuring a global shutter. The UAS was flown on pre-programmed autonomous flight lines at an approximate altitude of 50 meters above ground level (AGL). The flight lines were oriented roughly shore-parallel and were spaced to provide approximately... Tags: Bathymetry and Elevation, CHMRP, Coastal and Marine Hazards and Resources Program, Commencement Bay, Dickman Mill, All tags... Dickman Mill Park, PCMSC, Pacific Coastal and Marine Science Center, Pierce County, Puget Creek, Puget Sound, Ruston, Salish Sea, SfM, State of Washington, Structure-from-motion, Tacoma, 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, topographic maps, topography, Fewer tags Eelgrass distributions and bathymetry derived from an acoustic survey of the Nisqually River delta, Washington, 2012 This portion of the USGS data release presents eelgrass distribution and bathymetry data derived from acoustic surveys of the Nisqually River delta, Washington in 2012 (USGS Field Activity Number D-01-12-PS). Eelgrass and bathymetry data were collected from the R/V George Davidson equipped with a single-beam sonar system and global navigation satellite system (GNSS) receiver. The sonar system consisted of a Biosonics DT-X single-beam echosounder and 420 kHz transducer with a 6-degree beam angle. Depths from the echosounder were computed using sound velocity assuming a salinity of 30 psu and temperature of 10 degrees Celcius. Positioning of the survey vessel was determined at 5 to 10 Hz using a Trimble R7 GNSS receiver... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bathymetry and Elevation, Billy Frank Jr Nisqually National Wildlife Refuge, CMHRP, Coastal and Marine Hazards and Resources Program, Echo Sounders, All tags... GPS (Global Positioning System), GPS measurement, Global Positioning System (GPS) observations, Nisqually River, PCMSC, Pacific Coastal and Marine Science Center, Pierce County, Puget Sound, Salish Sea, Thurston County, U.S. Geological Survey, USGS, USGS Coastal Habitats in Puget Sound Project (CHIPS), Water Depth, aquatic vegetation, bathymetry, bathymetry measurement, elevation, marine geophysics, sea-floor characteristics, single-beam echo sounder, Fewer tags Eelgrass distributions derived from a towed underwater video survey of the Nisqually River delta, 2014 This portion of the USGS data release presents eelgrass distributions derived from towed underwater video surveys of the Nisqually River delta, Washington in 2014 (USGS Field Activity Number D-01-14-PS). Eelgrass data were collected from the R/V George Davidson equipped with a towed underwater video system and global navigation satellite system (GNSS) receiver. The underwater video system consisted of a Splashcam standard definition video camera connected to a Sony GV-D1000 video monitor and tape recorder. Positioning of the survey vessel was determined at 0.5 Hz intervals using a Garmin 76c GNSS receiver. The positioning data from the GNSS were encoded onto the audio track of the digital video recording using Red... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Billy Frank Jr Nisqually National Wildlife Refuge, CMHRP, Coastal and Marine Hazards and Resources Program, Flora, GPS measurement, All tags... Nisqually River, PCMSC, Pacific Coastal and Marine Science Center, Pierce County, Puget Sound, Salish Sea, Thurston County, U.S. Geological Survey, USGS, USGS Coastal Habitats in Puget Sound Project (CHIPS), aquatic vegetation, biota, sea-floor characteristics, underwater photography, video observation, Fewer tags Eelgrass distributions derived from a towed underwater video survey of the Nisqually River delta, 2017 This portion of the USGS data release presents eelgrass distributions derived from towed underwater video surveys of the Nisqually River delta, Washington in 2017 (USGS Field Activity Number 2017-614-FA). Eelgrass data were collected from the R/V George Davidson equipped with a towed underwater video system and global navigation satellite system (GNSS) receiver. The underwater video system consisted of a Splashcam standard definition video camera connected to a Sony GV-D1000 video monitor and tape recorder. Positioning of the survey vessel was determined at 1 Hz intervals using a Trimble R7 GNSS receiver and Trimble Zephyr Model 2 antenna. The positioning data from the GNSS were encoded onto the audio track of the... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Billy Frank Jr Nisqually National Wildlife Refuge, CMHRP, Coastal and Marine Hazards and Resources Program, Flora, GPS measurement, All tags... Nisqually River, PCMSC, Pacific Coastal and Marine Science Center, Pierce County, Puget Sound, Salish Sea, Thurston County, U.S. Geological Survey, USGS, USGS Coastal Habitats in Puget Sound Project (CHIPS), aquatic vegetation, biota, sea-floor characteristics, underwater photography, video observation, Fewer tags Digital surface models (DSM) for the intertidal zone at Puget Creek and Dickman Mill Park, Tacoma, WA, 2019-06-03 This portion of the data release presents digital surface models (DSM) and hillshade images of the intertidal zones at Puget Creek and Dickman Mill Park, Tacoma, WA. The DSMs have a resolution of 2.5 centimeters per pixel and were derived from structure-from-motion (SfM) processing of aerial imagery collected with an unmanned aerial system (UAS) on 2019-06-03. 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 this DSM was acquired using a... Tags: Bathymetry and Elevation, CHMRP, Coastal and Marine Hazards and Resources Program, Commencement Bay, Dickman Mill, All tags... Dickman Mill Park, PCMSC, Pacific Coastal and Marine Science Center, Pierce County, Puget Creek, Puget Sound, Ruston, Salish Sea, SfM, State of Washington, Structure-from-motion, Tacoma, 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, topographic maps, topography, Fewer tags Aerial imagery from UAS survey of the intertidal zone at Puget Creek and Dickman Mill Park, Tacoma, WA, 2019-06-03 This portion of the data release presents the raw aerial imagery collected during an Unmanned Aerial System (UAS) survey of the intertidal zone at Puget Creek and Dickman Mill Park, Tacoma, WA, on 2019-06-03. The imagery was acquired using a Department of Interior-owned 3DR Solo quadcopter fitted with a Ricoh GR II digital camera featuring a global shutter. The camera was mounted using a fixed mount on the bottom of the UAS and oriented in an approximately nadir orientation. The UAS was flown on pre-programmed autonomous flight lines at an approximate altitude of 50 meters above ground level (AGL), resulting in a nominal ground-sample-distance (GSD) of 1.3 centimeters per pixel. The flight lines were oriented roughly... Tags: Bathymetry and Elevation, CHMRP, Coastal and Marine Hazards and Resources Program, Commencement Bay, Dickman Mill, All tags... Dickman Mill Park, PCMSC, Pacific Coastal and Marine Science Center, Pierce County, Puget Creek, Puget Sound, Ruston, Salish Sea, SfM, State of Washington, Structure-from-motion, Tacoma, 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, topographic maps, topography, Fewer tags Eelgrass distributions derived from a towed underwater video survey of the Nisqually River delta, 2012 This portion of the USGS data release presents eelgrass distributions derived from towed underwater video surveys of the Nisqually River delta, Washington in 2012 (USGS Field Activity Number D-01-12-PS). Eelgrass data were collected from the R/V George Davidson equipped with a towed underwater video system and global navigation satellite system (GNSS) receiver. The underwater video system consisted of a Splashcam standard definition video camera connected to a Sony GV-D1000 video monitor and tape recorder. Positioning of the survey vessel was determined at 1 Hz intervals using a Trimble R7 GNSS receiver and Trimble Zephyr Model 2 antenna. The positioning data from the GNSS were encoded onto the audio track of the... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Billy Frank Jr Nisqually National Wildlife Refuge, CMHRP, Coastal and Marine Hazards and Resources Program, Flora, GPS measurement, All tags... Nisqually River, PCMSC, Pacific Coastal and Marine Science Center, Pierce County, Puget Sound, Salish Sea, Thurston County, U.S. Geological Survey, USGS, USGS Coastal Habitats in Puget Sound Project (CHIPS), aquatic vegetation, biota, sea-floor characteristics, underwater photography, video observation, Fewer tags Eelgrass distributions and bathymetry derived from an acoustic survey of the Nisqually River delta, Washington, 2017 This portion of the USGS data release presents eelgrass distribution and bathymetry data derived from acoustic surveys of the Nisqually River delta, Washington in 2017 (USGS Field Activity Number 2017-614-FA). Eelgrass and bathymetry data were collected from the R/V George Davidson equipped with a single-beam sonar system and global navigation satellite system (GNSS) receiver. The sonar system consisted of a Biosonics DT-X single-beam echosounder and 420 kHz transducer with a 6-degree beam angle. Depths from the echosounder were computed using sound velocity data measured using a YSI CastAway CTD during the survey. Positioning of the survey vessel was determined at 5 to 10 Hz using a Trimble R7 GNSS receiver and... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bathymetry and Elevation, Billy Frank Jr Nisqually National Wildlife Refuge, CMHRP, Coastal and Marine Hazards and Resources Program, Echo Sounders, All tags... GPS (Global Positioning System), GPS measurement, Global Positioning System (GPS) observations, Nisqually River, PCMSC, Pacific Coastal and Marine Science Center, Pierce County, Puget Sound, Salish Sea, Thurston County, U.S. Geological Survey, USGS, USGS Coastal Habitats in Puget Sound Project (CHIPS), Water Depth, aquatic vegetation, bathymetry, bathymetry measurement, elevation, marine geophysics, sea-floor characteristics, single-beam echo sounder, Fewer tags Topographic point cloud for the intertidal zone at Puget Creek and Dickman Mill Park, Tacoma, WA, 2019-06-03 This portion of the data release presents topographic point clouds of the intertidal zone at Puget Creek and Dickman Mill Park, Tacoma, WA, derived from structure-from-motion (SfM) processing of aerial imagery collected with an unmanned aerial system (UAS) on 2019-06-03. The point clouds for Puget Creek and Dickman Mill Park contain 74,565,548 and 122,791,637 points, respectively, at an approximate point spacing of 1 point every 2 centimeters. Each point contains an explicit horizontal and vertical coordinate, color, intensity, and classification. Water portions of the point cloud were classified using a polygon digitized from the orthomosaic imagery derived from these surveys (also available in this data release).... Tags: Bathymetry and Elevation, CHMRP, Coastal and Marine Hazards and Resources Program, Commencement Bay, Dickman Mill, All tags... Dickman Mill Park, PCMSC, Pacific Coastal and Marine Science Center, Pierce County, Puget Creek, Puget Sound, Ruston, Salish Sea, SfM, State of Washington, Structure-from-motion, Tacoma, 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, topographic maps, topography, Fewer tags Eelgrass distributions and bathymetry derived from an acoustic survey of the Nisqually River delta, Washington, 2014 This portion of the USGS data release presents eelgrass distribution and bathymetry data derived from acoustic surveys of the Nisqually River delta, Washington in 2014 (USGS Field Activity Number D-01-14-PS). Eelgrass and bathymetry data were collected from the R/V George Davidson equipped with a single-beam sonar system and global navigation satellite system (GNSS) receiver. The sonar system consisted of a Biosonics DT-X single-beam echosounder and 420 kHz transducer with a 6-degree beam angle. Depths from the echosounder were computed using sound velocity data measured using a YSI CastAway CTD during the survey. Positioning of the survey vessel was determined at 5 to 10 Hz using a Trimble R7 GNSS receiver and... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bathymetry and Elevation, Billy Frank Jr Nisqually National Wildlife Refuge, CMHRP, Coastal and Marine Hazards and Resources Program, Echo Sounders, All tags... GPS (Global Positioning System), GPS measurement, Global Positioning System (GPS) observations, Nisqually River, PCMSC, Pacific Coastal and Marine Science Center, Pierce County, Puget Sound, Salish Sea, Thurston County, U.S. Geological Survey, USGS, USGS Coastal Habitats in Puget Sound Project (CHIPS), Water Depth, aquatic vegetation, bathymetry, bathymetry measurement, elevation, marine geophysics, sea-floor characteristics, single-beam echo sounder, Fewer tags