Filters: Tags: altimetry (X) > Categories: Data (X)

Filters Date Range Past year (13) Past month (0) Past week (0) Past day (0) Custom range... To   Search Types Map Service (1) OGC WFS Layer (1) OGC WMS Layer (1) OGC WMS Service (1) Contacts PCMSC Science Data Coordinator Pacific Coastal and Marine Science Center U.S. Geological Survey - ScienceBase U.S. Geological Survey Joshua Logan More... Tag Types Theme (24) Place (24) Tag Schemes None (24) Geographic Names Information System (GNIS) (24) USGS Thesaurus (24) Marine Realms Information Bank (MRIB) keywords (24) ISO 19115 Topic Category (24) Data Categories for Marine Planning (24) View Results as: JSON ATOM CSV

Ground control point locations for UAS surveys of the beaches at Fort Stevens State Park, OR, and Cape Disappointment State Park, WA, July 2021 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 the July 2021 unoccupied aerial system (UAS) surveys of the ocean beach at Fort Stevens State Park, OR, and Benson Beach at Cape Disappointment State Park, WA. Eighteen temporary ground control points (GCPs) were distributed throughout the 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 dual-frequency post-processed kinematic (PPK) GPS with corrections... Categories: Data; Tags: Bathymetry and Elevation, Benson Beach, CHMRP, Cape Disappointment, Clatsop County, All tags... Clatsop Spit, Coastal and Marine Hazards and Resources Program, Columbia River, Fort Stevens, North Head, PCMSC, Pacific Coastal and Marine Science Center, Pacific County, Pacific Ocean, State of Oregon, State of Washington, Structure-from-motion, U.S. Geological Survey, UAS, USGS, Unmanned aerial system, aerial and satellite photography, aerial photography, altimetry, elevation, geomorphology, geoscientificInformation, geospatial datasets, image mosaics, orthophotography, photography, remote sensing, remote sensing, topographic maps, topography, Fewer tags Digital surface model (DSM) and digital elevation model (DEM) of the Los Padres Reservoir delta, Carmel River valley, CA, 2017-11-01 This portion of the data release presents a digital surface model (DSM) and digital elevation model (DEM) of the exposed Los Padres Reservoir delta where the Carmel River enters the reservoir. The DSM and DEM have a resolution of 10 centimeters per pixel and were derived from structure-from-motion (SfM) processing of aerial imagery collected with an unoccupied aerial system (UAS) on 2017-11-01. The DSM represents the elevation of the highest object within the bounds of a cell, including vegetation, woody debris and other objects. The DEM represent the elevation of the ground surface where it was visible to the acquisiton system. Due to the nature of SfM processing, the DEM may not represent a true bare-earth surface... Categories: Data; Tags: Bathymetry and Elevation, CHMRP, Carmel River, Coastal and Marine Hazards and Resources Program, Monterey County, All tags... PCMSC, Pacific Coastal and Marine Science Center, SfM, State of California, Structure-from-motion, U.S. Geological Survey, UAS, USGS, Unmanned aerial system, aerial and satellite photography, aerial photography, altimetry, elevation, geomorphology, geoscientificInformation, geospatial datasets, image mosaics, orthophotography, photography, remote sensing, remote sensing, structure from motion, topographic maps, topography, Fewer tags Aerial imagery from UAS surveys of beaches at Fort Stevens State Park, OR, and Cape Disappointment State Park, WA, August 2017 This portion of the data release presents the raw aerial imagery collected during the uncrewed aerial system (UAS) survey conducted on the ocean beaches adjacent to the Columbia River Mouth at the Oregon-Washington border in August 2017. 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 Fort Stevens State Park survey was conducted under Oregon Parks and Recreation Department Scientific Research Permit #024-17. Five flights were conducted at Fort Stevens State Park on 7 August 2017, between 16:32... Categories: Data; Tags: Bathymetry and Elevation, Benson Beach, CHMRP, Cape Disappointment, Clatsop County, All tags... Clatsop Spit, Coastal and Marine Hazards and Resources Program, Columbia River, Fort Stevens, North Head, PCMSC, Pacific Coastal and Marine Science Center, Pacific County, Pacific Ocean, State of Oregon, State of Washington, Structure-from-motion, U.S. Geological Survey, UAS, USGS, Unmanned aerial system, aerial and satellite photography, aerial photography, altimetry, elevation, geomorphology, geoscientificInformation, geospatial datasets, image mosaics, orthophotography, photography, remote sensing, remote sensing, topographic maps, topography, Fewer tags Orthomosaic images of the Whale's Tail Marsh region, South San Francisco Bay, CA This portion of the data release presents orthomosaic images of the Whale's Tail Marsh region of South San Francisco Bay, CA. The orthomosaics have resolutions of 2.5 centimeters per pixel and were derived from structure-from-motion (SfM) processing of repeat aerial imagery collected from fixed-wing aircraft. The raw imagery used to create these elevation models was acquired from an approximate altitude of 427 meters (1,400 feet) above ground level (AGL), using a Hasselblad A6D-100c camera fitted with an HC 80 lens, resulting in a nominal ground-sample-distance (GSD) of 2.5 centimeters per pixel. The acquisition flight lines were designed to provide approximately 50 percent overlap between adjacent flight lines... Categories: Data; Tags: Alameda County, Alameda Creek, Bathymetry and Elevation, CHMRP, Coastal and Marine Hazards and Resources Program, All tags... Mount Eden Creek, PCMSC, Pacific Coastal and Marine Science Center, San Francisco Bay, SfM, State of California, Structure-from-motion, U.S. Geological Survey, USGS, aerial and satellite photography, aerial photography, altimetry, geomorphology, geoscientificInformation, geospatial datasets, image mosaics, orthophotography, photography, remote sensing, remote sensing, structure from motion, Fewer tags 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 Aerial imagery from the UAS survey of the Los Padres Reservoir delta, Carmel River valley, CA, 2017-11-01 This portion of the data release presents the raw aerial imagery collected during the unoccupied aerial system (UAS) survey of the Los Padres Reservoir delta, Carmel River valley, CA, 2017-11-01. 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. A total of six flights were conducted for the survey between 19:35 and 22:15 UTC (12:35 and 15:15 PDT). Only the imagery from fights F03 and F06 were used for data processing and are included in this data release. All flights were conducted at an approximate... Categories: Data; Tags: Bathymetry and Elevation, CHMRP, Carmel River, Coastal and Marine Hazards and Resources Program, Monterey County, All tags... PCMSC, Pacific Coastal and Marine Science Center, State of California, Structure-from-motion, U.S. Geological Survey, UAS, USGS, Unmanned aerial system, aerial and satellite photography, aerial photography, altimetry, elevation, geomorphology, geoscientificInformation, geospatial datasets, image mosaics, orthophotography, photography, remote sensing, remote sensing, topographic maps, topography, Fewer tags Ground control point locations for UAS surveys of the beaches at Fort Stevens State Park, OR, and Cape Disappointment State Park, WA, August 2017 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 the August 2017 unoccupied aerial system (UAS) surveys of the ocean beach at Fort Stevens State Park, OR, and Benson Beach at Cape Disappointment State Park, WA. Eighteen temporary ground control points (GCPs) were distributed throughout the 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 dual-frequency real-time kinematic (RTK) or post-processed kinematic... Categories: Data; Tags: Bathymetry and Elevation, Benson Beach, CHMRP, Cape Disappointment, Clatsop County, All tags... Clatsop Spit, Coastal and Marine Hazards and Resources Program, Columbia River, Fort Stevens, North Head, PCMSC, Pacific Coastal and Marine Science Center, Pacific County, Pacific Ocean, State of Oregon, State of Washington, Structure-from-motion, U.S. Geological Survey, UAS, USGS, Unmanned aerial system, aerial and satellite photography, aerial photography, altimetry, elevation, geomorphology, geoscientificInformation, geospatial datasets, image mosaics, orthophotography, photography, remote sensing, remote sensing, topographic maps, topography, Fewer tags Digital Surface Models (DSMs) of the Whale's Tail Marsh region, South San Francisco Bay, CA This portion of the data release presents digital surface models (DSM) of the Whale's Tail Marsh region of South San Francisco Bay, CA. The DSMs have resolutions of 5 centimeters per pixel and were derived from structure-from-motion (SfM) processing of repeat aerial imagery collected from fixed-wing aircraft. Unlike a digital elevation model (DEM), a DSM represents the elevation of the highest object within the bounds of a cell. Vegetation, structures, and other objects have not been removed from the data. The raw imagery used to create these elevation models was acquired from an approximate altitude of 427 meters (1,400 feet) above ground level (AGL), using a Hasselblad A6D-100c camera fitted with an HC 80 lens,... Categories: Data; Tags: Alameda County, Alameda Creek, Bathymetry and Elevation, CHMRP, Coastal and Marine Hazards and Resources Program, All tags... Mount Eden Creek, PCMSC, Pacific Coastal and Marine Science Center, San Francisco Bay, SfM, State of California, Structure-from-motion, U.S. Geological Survey, USGS, aerial and satellite photography, aerial photography, altimetry, elevation, geomorphology, geoscientificInformation, geospatial datasets, image mosaics, orthophotography, photography, remote sensing, remote sensing, structure from motion, topographic maps, topography, Fewer tags Topographic point cloud of the Los Padres Reservoir delta, Carmel River valley, CA, 2017-11-01 This portion of the data release presents a topographic point cloud of the exposed Los Padres Reservoir delta where the Carmel River enters the reservoir. The point cloud was derived from structure-from-motion (SfM) processing of aerial imagery collected with an unoccupied aerial system (UAS) on 2017-11-01. The point cloud has 115,819,907 points with an average point density of 611 points per-square meter. Each point in the point cloud contains an explicit horizontal and vertical coordinate, color, intensity, and classification. Classification was performed on the point cloud to identify ground and low-noise points within the point cloud. Additional portions of the point cloud within the horizontal extent of the... Categories: Data; Tags: Bathymetry and Elevation, CHMRP, Carmel River, Coastal and Marine Hazards and Resources Program, Monterey County, All tags... PCMSC, Pacific Coastal and Marine Science Center, SfM, State of California, Structure-from-motion, U.S. Geological Survey, UAS, USGS, Unmanned aerial system, aerial and satellite photography, aerial photography, altimetry, elevation, geomorphology, geoscientificInformation, geospatial datasets, image mosaics, orthophotography, photography, remote sensing, remote sensing, structure from motion, topographic maps, topography, Fewer tags Topography data collected in the Liberty Island Conservation Bank portion of the Cache Slough Complex, Sacramento-San Joaquin Delta, California, during USGS field activity 2017-649-FA This portion of the USGS data release presents topography data acquired in the Liberty Island Conservation Wildlands restoration site in 2017 (USGS Field Activity Number 2017-649-FA). Topographic data were collected on June 26 and 27, 2017 by walking with global navigation satellite system (GNSS) receivers mounted on backpacks. Hand-held data collectors were used to log raw data and display navigational information as the surveyors traversed the landscape. The final point data are provided in a comma-separated text file and are projected in cartesian coordinates using the Universal Transverse Mercator (UTM) Zone 10 North, meters coordinate system. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bathymetry and Elevation, CMHRP, Cache Slough, Cache Slough Complex, Coastal and Marine Hazards and Resources Program, All tags... Liberty Island, PCMSC, Pacific Coastal and Marine Science Center, Sacramento River, Sacramento River Deep Water Ship Channel, Sacramento-San Joaquin Delta, San Joaquin River, State of California, U.S. Geological Survey, USGS, altimetry, elevation, geoscientificInformation, geospatial datasets, topography, Fewer tags Orthomosaic images from UAS surveys of the beaches at Fort Stevens State Park, OR, and Cape Disappointment State Park, WA, July 2021 This portion of the data release presents high-resolution orthomosaic images of the ocean beach at Fort Stevens State Park, OR, and Benson Beach at Cape Disappointment State Park, WA. The orthomosaics have resolutions of 5 centimeters per pixel and were derived from structure-from-motion (SfM) processing of aerial imagery collected with unoccupied aerial systems (UAS) during low tide surveys on 22 and 23 July 2021. The raw imagery used to create the orthomosaics was acquired with a UAS fitted with a Ricoh GR II digital camera featuring a global shutter. The UAS was flown on pre-programmed autonomous flight lines spaced to provide approximately 70 percent overlap between images from adjacent lines. The camera was... Categories: Data; Tags: Bathymetry and Elevation, Benson Beach, CHMRP, Cape Disappointment, Clatsop County, All tags... Clatsop Spit, Coastal and Marine Hazards and Resources Program, Columbia River, Fort Stevens, North Head, PCMSC, Pacific Coastal and Marine Science Center, Pacific County, Pacific Ocean, State of Oregon, State of Washington, Structure-from-motion, U.S. Geological Survey, UAS, USGS, Unmanned aerial system, aerial and satellite photography, aerial photography, altimetry, elevation, geomorphology, geoscientificInformation, geospatial datasets, image mosaics, orthophotography, photography, remote sensing, remote sensing, topographic maps, topography, Fewer tags Ground control point locations for UAS survey of the Liberty Island Conservation Bank Wildlands restoration site, Sacramento-San Joaquin Delta, California, 2018-10-23 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 the Unmanned Aerial System (UAS) survey on of the Liberty Island Conservation Bank Wildlands restoration site in the Sacramento-San Joaquin Delta on 2018-10-23. The GCPs were used to establish ground control for the survey and consisted of 24 small (80 x 80 centimeter) square tarps with black-and-white cross patterns placed on the ground surface throughout the mapping area during the survey. The GCP positions were measured using RTK GPS, with corrections from a GPS base station located approximately 3 kilometers south of the study... Categories: Data; Tags: Bathymetry and Elevation, CHMRP, Cache Slough, Coastal and Marine Hazards and Resources Program, Liberty Island, All tags... PCMSC, Pacific Coastal and Marine Science Center, Sacramento River, Sacramento River Deep Water Ship Channel, Sacramento-San Joaquin Delta, San Joaquin River, State of California, Structure-from-motion, U.S. Geological Survey, UAS, USGS, Unmanned aerial system, aerial photography, altimetry, elevation, fragile ecosystems, geomorphology, geoscientificInformation, geospatial datasets, image mosaics, photography, remote sensing, remote sensing, topographic maps, topography, wetland restoration, Fewer tags Orthomosaic imagery of the Los Padres Reservoir delta, Carmel River valley, CA, 2017-11-01 This portion of the data release presents a high-resolution orthomosaic image of the exposed Los Padres Reservoir delta where the Carmel River enters the reservoir. The orthomosaic has a resolution of 2.5 centimeters per pixel and was derived from structure-from-motion (SfM) processing of aerial imagery collected with an unoccupied aerial system (UAS) on 2017-11-01. The raw imagery used to create the orthomosaic 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 spaced to provide approximately 70 percent overlap between images from adjacent lines. The camera was triggered at 1 Hz using a built-in intervalometer.... Categories: Data; Tags: Bathymetry and Elevation, CHMRP, Carmel River, Coastal and Marine Hazards and Resources Program, Monterey County, All tags... PCMSC, Pacific Coastal and Marine Science Center, SfM, State of California, Structure-from-motion, U.S. Geological Survey, UAS, USGS, Unmanned aerial system, aerial and satellite photography, aerial photography, altimetry, elevation, geomorphology, geoscientificInformation, geospatial datasets, image mosaics, orthophotography, photography, remote sensing, remote sensing, structure from motion, topographic maps, topography, Fewer tags Topographic point clouds from UAS surveys of the beaches at Fort Stevens State Park, OR, and Cape Disappointment State Park, WA, August 2017 This portion of the data release presents topographic point clouds of the ocean beach at Fort Stevens State Park, OR, and Benson Beach at Cape Disappointment State Park, WA. The point clouds were derived from structure-from-motion (SfM) processing of aerial imagery collected with unoccupied aerial systems (UAS) on during low tide surveys on 7 and 8 August 2017. The point clouds from each survey are tiled into 1000 by 1000 meter tiles to reduce individual file sizes. The Fort Stevens point clouds have a total of 271,915,544 points, with an average point density of 407 points per-square meter and an average point spacing of 5 centimeters. The Benson Beach point clouds have a total of 301,569,130 points, with an average... Categories: Data; Tags: Bathymetry and Elevation, Benson Beach, CHMRP, Cape Disappointment, Clatsop County, All tags... Clatsop Spit, Coastal and Marine Hazards and Resources Program, Columbia River, Fort Stevens, North Head, PCMSC, Pacific Coastal and Marine Science Center, Pacific County, Pacific Ocean, State of Oregon, State of Washington, Structure-from-motion, U.S. Geological Survey, UAS, USGS, Unmanned aerial system, aerial and satellite photography, aerial photography, altimetry, elevation, geomorphology, geoscientificInformation, geospatial datasets, image mosaics, orthophotography, photography, remote sensing, remote sensing, topographic maps, topography, Fewer tags Ground control point locations for UAS survey of the intertidal zone at Post Point, Bellingham Bay, WA, 2019-06-06 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 zone at Post Point, Bellingham Bay, WA on 2019-06-06. Nineteen 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 5 kilometers... Categories: Data; 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 Ground control point locations for UAS survey of the intertidal zone at West Whidbey Island, WA, 2019-06-04 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 zone at West Whidbey Island, WA on 2019-06-04. Twenty-five temporary ground control points (GCPs) were distributed throughout the 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 7 kilometers from... Categories: Data; 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 Digital Surface Models (DSM) from UAS surveys of the beaches at Fort Stevens State Park, OR, and Cape Disappointment State Park, WA, July 2021 This portion of the data release presents digital surface models (DSM) of the ocean beach at Fort Stevens State Park, OR, and Benson Beach at Cape Disappointment State Park, WA. The DSMs have resolutions of 10 centimeters per pixel and were derived from structure-from-motion (SfM) processing of aerial imagery collected with unoccupied aerial systems (UAS) during low tides on 22 and 23 July 2021. Unlike a digital elevation model (DEM), the DSMs represent the elevation of the highest object within the bounds of a cell. Vegetation, buildings, and other objects have not been removed from the data. The raw imagery used to create the DSMs was acquired with a UAS fitted with a Ricoh GR II digital camera featuring a global... Categories: Data; Tags: Bathymetry and Elevation, Benson Beach, CHMRP, Cape Disappointment, Clatsop County, All tags... Clatsop Spit, Coastal and Marine Hazards and Resources Program, Columbia River, Fort Stevens, North Head, PCMSC, Pacific Coastal and Marine Science Center, Pacific County, Pacific Ocean, State of Oregon, State of Washington, Structure-from-motion, U.S. Geological Survey, UAS, USGS, Unmanned aerial system, aerial and satellite photography, aerial photography, altimetry, elevation, geomorphology, geoscientificInformation, geospatial datasets, image mosaics, orthophotography, photography, remote sensing, remote sensing, topographic maps, topography, Fewer tags Topographic point clouds from UAS surveys of the beaches at Fort Stevens State Park, OR, and Cape Disappointment State Park, WA, July 2021 This portion of the data release presents topographic point clouds of the ocean beach at Fort Stevens State Park, OR, and Benson Beach at Cape Disappointment State Park, WA. The point clouds were derived from structure-from-motion (SfM) processing of aerial imagery collected with unoccupied aerial systems (UAS) on 2017-11-01 during low tide surveys on 22 and 23 July 2021. The point clouds from each survey are tiled into 500 by 500 meter tiles to reduce individual file sizes. The Fort Stevens point clouds have a total of approximately 496 million points, with an average point density of 386 points per-square meter and an average point spacing of 5 centimeters. The Benson Beach point clouds have a total of approximately... Categories: Data; Tags: Bathymetry and Elevation, Benson Beach, CHMRP, Cape Disappointment, Clatsop County, All tags... Clatsop Spit, Coastal and Marine Hazards and Resources Program, Columbia River, Fort Stevens, North Head, PCMSC, Pacific Coastal and Marine Science Center, Pacific County, Pacific Ocean, State of Oregon, State of Washington, Structure-from-motion, U.S. Geological Survey, UAS, USGS, Unmanned aerial system, aerial and satellite photography, aerial photography, altimetry, elevation, geomorphology, geoscientificInformation, geospatial datasets, image mosaics, orthophotography, photography, remote sensing, remote sensing, topographic maps, topography, Fewer tags Orthomosaic images from UAS surveys of the beaches at Fort Stevens State Park, OR, and Cape Disappointment State Park, WA, August 2017 This portion of the data release presents high-resolution orthomosaic images of the ocean beach at Fort Stevens State Park, OR, and Benson Beach at Cape Disappointment State Park, WA. The orthomosaics have resolutions of 5 centimeters per pixel and were derived from structure-from-motion (SfM) processing of aerial imagery collected with unoccupied aerial systems (UAS) during low tide surveys on 7 and 8 August 2017. The raw imagery used to create the orthomosaics was acquired with a UAS fitted with a Ricoh GR II digital camera featuring a global shutter. The UAS was flown on pre-programmed autonomous flight lines spaced to provide approximately 70 percent overlap between images from adjacent lines. The camera was... Categories: Data; Tags: Bathymetry and Elevation, Benson Beach, CHMRP, Cape Disappointment, Clatsop County, All tags... Clatsop Spit, Coastal and Marine Hazards and Resources Program, Columbia River, Fort Stevens, North Head, PCMSC, Pacific Coastal and Marine Science Center, Pacific County, Pacific Ocean, State of Oregon, State of Washington, Structure-from-motion, U.S. Geological Survey, UAS, USGS, Unmanned aerial system, aerial and satellite photography, aerial photography, altimetry, elevation, geomorphology, geoscientificInformation, geospatial datasets, image mosaics, orthophotography, photography, remote sensing, remote sensing, topographic maps, topography, Fewer tags Ground control point locations for the UAS survey of the Los Padres Reservoir delta, Carmel River valley, CA, 2017-11-01 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 the unoccupied aerial system (UAS) survey of the Los Padres Reservoir delta, Carmel River valley, CA, 2017-11-01. Twenty temporary ground control points (GCPs) consisting of small square tarps with black-and-white cross patterns were distributed throughout the area to establish survey control. The GCP positions were measured using real-time kinematic (RTK) GPS, using corrections from a GPS base station located on a benchmark designated SFML, located approximately 1 kilometer from the study area. The GCP positions are presented in... Categories: Data; Tags: Bathymetry and Elevation, CHMRP, Carmel River, Coastal and Marine Hazards and Resources Program, Monterey County, All tags... PCMSC, Pacific Coastal and Marine Science Center, SfM, State of California, Structure-from-motion, U.S. Geological Survey, UAS, USGS, Unmanned aerial system, aerial and satellite photography, aerial photography, altimetry, elevation, geomorphology, geoscientificInformation, geospatial datasets, image mosaics, orthophotography, photography, remote sensing, remote sensing, structure from motion, topographic maps, topography, Fewer tags 1 2 »