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Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts Alaska Division of Geological & Geophysical Surveys Overbeck, J.R. Hendricks, M.D. DeRaps, M.R. Simone Montayne More... Tag Types Theme (17) Place (17) Tag Schemes Alaska Division of Geological & Geophysical Surveys (16) ISO 19115 Topic Category (17) None (1) View Results as: JSON ATOM CSV

Photogrammetric digital surface models and orthoimagery for 26 coastal communities of western Alaska The State of Alaska Division of Geological & Geophysical Surveys acquired photogrammetric digital surface models (DSMs) and co-registered orthorectified aerial images (orthoimages) for the west coast of Alaska in support of coastal vulnerability mapping efforts. This report is a summary of the data collected over 26 developed areas along approximately 3,500 km of coastline in the Bering Sea, Norton Sound, and Yukon-Kuskokwim Delta regions (fig. 1). Aerial photographs were collected between July 31 and September 6, 2015, and processed using Structure from- Motion (SfM) photogrammetry techniques. Ground control points (GCPs) and checkpoints were collected in support of these data products during a Global Navigation... Tags: Alakanuk, Alaska, State of, Brevig Mission, Chefornak, Chevak, All tags... Coastal, Coastal and River, Elim, Emmonak, Engineering, Engineering Geology, Environmental, Geologic Hazards, Geology, Geomorphology, Golovin, Hillshade Image, Hooper Bay, Kipnuk, Kongiganak, Kotlik, Koyuk, Kwigillingok, Methods, Newtok, Nightmute, Nome, Nunam Iqua, Orthoimagery, Raster Image, Saint Michael, Scammon Bay, Shaktoolik, Stebbins, Teller, Toksook Bay, Tununak, Unalakleet, Wales, geoscientificInformation, Fewer tags Spatially referenced oblique aerial photography of the Golovin shoreline, July 2012 In July 2012, a helicopter-based crew photographed approximately 22 miles (35 km) of shoreline near Golovin, Alaska, from the Yuonglik River delta southeast to Portage Creek. During this flight 572 oblique aerial photographs were collected and spatially referenced using a Garmin Dakota 20 handheld GPS. Tags: Aerial Photography, Beach Deposits, Coastal, Coastal Erosion, Geomorphology, All tags... Seward Peninsula, Shoreface, Solomon Quadrangle, geoscientificInformation, Fewer tags Spatially referenced oblique aerial photography of the Eastern Norton Sound shoreline, July 2011 In July 2011, a helicopter-based crew photographed approximately 180 miles of shoreline along the eastern edge of Norton Sound, from Cape Denbigh to south of Unalakleet, AK. During this flight 2,180 oblique aerial photographs were collected and spatially referenced using a Garmin Dakota 20, handheld GPS. The communities of Unalakleet and Shaktoolik lie along the flight-line of this project. Tags: Aerial Photography, Beach Deposits, Coastal, Coastal Erosion, Geomorphology, All tags... Norton Bay Quadrangle, Norton Sound, Shoreface, Unalakleet Quadrangle, geoscientificInformation, Fewer tags Photogrammetric digital surface models and orthoimagery for the continuous coastline, Wales to Platinum, Alaska, segment B: Teller to Nome Aerial photographs of the coastline from Teller to Nome were collected between August 26, 2015 - August 27, 2015. The photographs were processed using Structure-from-Motion (SfM) photogrammetric techniques. Global Positioning System (GPS) checkpoints were collected via a Global Navigation Satellite System (GNSS) survey conducted between August 15 and September 14, 2015. For the purposes of open access to elevation and orthoimagery datasets in coastal regions of Alaska, this collection is being released as a Raw Data File with an open end-user license. Orthoimages contain 4-band, 8-bit, unsigned raster data (red/green/blue/no data; file format-GeoTIFF; source-Fairbanks Fodar) with 20 cm GSD. No-data values are found... Tags: Brevig Mission, Coastal, Coastal and River, Engineering, Engineering Geology, All tags... Environmental, Geologic Hazards, Geology, Geomorphology, Hazards, Hillshade Image, Marine Geology, Methods, Nome, Orthoimagery, Raster Image, Sinuk, Surficial, Teller, geoscientificInformation, Fewer tags LiDAR data for Unalakleet, Alaska, collected in October 27, 2005 This report is a summary of a LiDAR data collection over the community of Unalakleet, in the Norton Sound region of Alaska. The original data were collected on October 27, 2005 by AeroMetric, Inc., under contract by Rodney P. Kinney and Associates, Inc. The complete, classified LiDAR dataset was purchased by the State of Alaska Division of Geological & Geophysical Surveys in 2013 in support of coastal vulnerability mapping efforts. For the purposes of open access to LiDAR datasets in coastal regions of Alaska, this collection is being released as a Raw Data File with an open end-user license. Tags: Coastal, Coastal and River, Geomorphology, LiDAR, LiDAR LAS File Format, All tags... Point Cloud Data, Remote Sensing, Surface, Unalakleet Quadrangle, geoscientificInformation, Fewer tags Photogrammetric digital surface models and orthoimagery for 26 coastal communities of western Alaska The State of Alaska Division of Geological & Geophysical Surveys acquired photogrammetric digital surface models (DSMs) and co-registered orthorectified aerial images (orthoimages) for the west coast of Alaska in support of coastal vulnerability mapping efforts. This report is a summary of the data collected over 26 developed areas along approximately 3,500 km of coastline in the Bering Sea, Norton Sound, and Yukon-Kuskokwim Delta regions (fig. 1). Aerial photographs were collected between July 31 and September 6, 2015, and processed using Structure from- Motion (SfM) photogrammetry techniques. Ground control points (GCPs) and checkpoints were collected in support of these data products during a Global Navigation... Tags: Alakanuk, Alaska, State of, Brevig Mission, Chefornak, Chevak, All tags... Coastal, Coastal and River, Elim, Emmonak, Engineering, Engineering Geology, Environmental, Geologic Hazards, Geology, Geomorphology, Golovin, Hillshade Image, Hooper Bay, Kipnuk, Kongiganak, Kotlik, Koyuk, Kwigillingok, Methods, Newtok, Nightmute, Nome, Nunam Iqua, Orthoimagery, Raster Image, Saint Michael, Scammon Bay, Shaktoolik, Stebbins, Teller, Toksook Bay, Tununak, Unalakleet, Wales, geoscientificInformation, Fewer tags Photogrammetric digital surface models and orthoimagery for the continuous coastline, Wales to Platinum, Alaska, segment C: Nome to Elim Aerial photographs of the coastline from Nome to Elim were collected on August 23, 2015. The photographs were processed using Structure-from-Motion (SfM) photogrammetric techniques. Global Positioning System (GPS) checkpoints were collected via a Global Navigation Satellite System (GNSS) survey conducted between August 15 and September 14, 2015. For the purposes of open access to elevation and orthoimagery datasets in coastal regions of Alaska, this collection is being released as a Raw Data File with an open end-user license. This file is a single-band, 32-bit float DSM (digital surface model) which represents surface elevations of buildings, vegetation, and uncovered ground surfaces in meters with 20 cm GSD. The... Tags: Bear Creek, Bonanza River, Cape Darby, Cape Nome, Coastal, All tags... Coastal Erosion, Coastal and River, Daniels Creek, Dry Creek, Elim, Engineering, Engineering Geology, Environmental, Fish River, Flambeau River, Geologic, Geologic Hazards, Geological Process, Geomorphology, Golovin, Hazards, Hillshade Image, Iron Creek, Kachauik River, Kwiniuk River, Methods, Moses Point Fishing Village, Mudyutok River, Nome, Nome River, Orthoimagery, Port Safety, Portage Creek, Raster Image, Rock Creek, Snake River, Solomon, Solomon River, Surface, Surficial, Surficial Geology, White Mountain, Yuonglik River, geoscientificInformation, Fewer tags Spatially referenced oblique aerial imagery of the Port Heiden shoreline, August 2013 In August 2013, a helicopter-based crew photographed approximately 52 miles (84 km) of shoreline near Port Heiden, Alaska, from 7 miles (11 km) northeast of Reindeer Creek, known locally as North Creek, to 10 miles (16 km) southwest of Strogonof Point. During this flight, 1,441 oblique aerial photographs were collected and were spatially referenced using a Garmin Dakota 20 handheld GPS. For a complete description of the image collection and file organization process please see the detailed metadata associated with this Raw Data File. Tags: Aerial Photography, Beach Deposits, Bristol Bay, Chignik Quadrangle, Coastal, All tags... Coastal Erosion, Coastal and River, Engineering, Engineering Geology, Geologic Hazards, Geological Process, Geology, Geomorphology, Hazards, Shoreface, geoscientificInformation, Fewer tags Surficial geologic map of the Shaktoolik area, Norton Bay Quadrangle, Alaska This 1:50,000 scale geologic map describes the distribution of unconsolidated deposits, identifies local geologic hazards, and provides information about the depositional environment and basic engineering properties of common surficial-geologic materials in and around Shaktoolik, Alaska. Map units are the result of combined field observations and aerial imagery interpretation. A suite of local ground observations were collected over a two-week period in July 2011 by a helicopter-supported team of DGGS geologists and collaborators. Field investigations included soil test pits, sample collection, soil and rock description, oblique aerial photography, and documentation of landscape morphology. Tags: Alluvial, Alluvium, Analyses and Sampling, C14, Clay, All tags... Coastal, Coastal and River, Colluvium, Conglomerate, Construction Materials, Engineering, Engineering Geology, Eolian, Erosion, Fan, Flood, Floodplain, Fluvial, Gelifluction, Geochronology, Geologic, Geologic Hazards, Geologic Map, Geology, Geomorphology, Geotechnical, Gravel, Hazards, Ice, Image Interpretation, Interpretation, Inundation, Lacustrine, Lakes, Meltwater, Norton Bay Quadrangle, Permafrost, Permafrost and Periglacial, Resource Assessment, Resources, Rocks, Sand, Sand and Gravel, Sediment, Sedimentation, Shaktoolik, Silt, Slope, Slump, Surface, Surficial, Surficial Geologic Map, Surficial Geology, Terrace, Thaw Lakes, Thawing Permafrost, Thermokarst, geoscientificInformation, Fewer tags Single-beam bathymetry data collected in shallow-water areas near Gambell, Golovin, Hooper Bay, Savoonga, Shishmaref, and Wales, Alaska, 2012-2013 Nearshore bathymetry is a vital link that joins offshore water depths to coastal topography. Seamless water depth information is a critical input parameter for reliable storm surge models, enables the calculation of sediment budgets, and is necessary baseline data for a range of coastal development decisions. Bathymetric data collection capabilities of an active coastal geohazard field program operated by the Alaska Division of Geological & Geophysical Surveys (DGGS) were expanded in 2012. Resultant datasets presented in this report include nearshore bathymetric measurements of critical shallow-water coastal areas in the vicinity of six western Alaska communities: Gambell, Golovin, Hooper Bay, Savoonga, Shishmaref,... Tags: Bathymetry, Bering Sea, Chukchi Sea, Coastal, Gambell, All tags... Golovin, Hooper Bay, Hooper Bay Quadrangle, Saint Lawrence Quadrangle, Savoonga, Shishmaref, Shishmaref Quadrangle, Solomon Quadrangle, Teller Quadrangle, Wales, Yukon-Kuskokwim Delta, geoscientificInformation, Fewer tags Single-beam bathymetry data collected in shallow-water areas near Gambell, Golovin, Hooper Bay, Savoonga, Shishmaref, and Wales, Alaska, 2012-2013 Nearshore bathymetry is a vital link that joins offshore water depths to coastal topography. Seamless water depth information is a critical input parameter for reliable storm surge models, enables the calculation of sediment budgets, and is necessary baseline data for a range of coastal development decisions. Bathymetric data collection capabilities of an active coastal geohazard field program operated by the Alaska Division of Geological & Geophysical Surveys (DGGS) were expanded in 2012. Resultant datasets presented in this report include nearshore bathymetric measurements of critical shallow-water coastal areas in the vicinity of six western Alaska communities: Gambell, Golovin, Hooper Bay, Savoonga, Shishmaref,... Tags: Bathymetry, Bering Sea, Chukchi Sea, Coastal, Gambell, All tags... Golovin, Hooper Bay, Hooper Bay Quadrangle, Saint Lawrence Quadrangle, Savoonga, Shishmaref, Shishmaref Quadrangle, Solomon Quadrangle, Teller Quadrangle, Wales, Yukon-Kuskokwim Delta, geoscientificInformation, Fewer tags Photogrammetric digital surface models and orthoimagery for the continuous coastline, Wales to Platinum, Alaska, segment A: Wales to Teller Aerial photographs of the coastline from Wales to Teller were collected on August 27, 2015 - August 28, 2015. The photographs were processed using Structure-from-Motion (SfM) photogrammetric techniques. Global Positioning System (GPS) checkpoints were collected via a Global Navigation Satellite System (GNSS) survey conducted between August 15 and September 14, 2015. For the purposes of open access to elevation and orthoimagery datasets in coastal regions of Alaska, this collection is being released as a Raw Data File with an open end-user license. Orthoimages contain 4-band, 8-bit, unsigned raster data (red/green/blue/no data; file format-GeoTIFF; source-Fairbanks Fodar) with 20 cm GSD. No-data values are found... Tags: Coastal, Coastal Erosion, Coastal and River, Engineering, Engineering Geology, All tags... Environmental, Geologic, Geologic Hazards, Geological Process, Geology, Geomorphology, Hazards, Hillshade Image, Methods, Orthoimagery, Raster Image, Seward Peninsula, Surface, Surficial, Surficial Geology, Teller, Wales, geoscientificInformation, Fewer tags Photogrammetric digital surface models and orthoimagery for the continuous coastline, Wales to Platinum, Alaska, segment A: Wales to Teller Aerial photographs of the coastline from Wales to Teller were collected on August 27, 2015 - August 28, 2015. The photographs were processed using Structure-from-Motion (SfM) photogrammetric techniques. Global Positioning System (GPS) checkpoints were collected via a Global Navigation Satellite System (GNSS) survey conducted between August 15 and September 14, 2015. For the purposes of open access to elevation and orthoimagery datasets in coastal regions of Alaska, this collection is being released as a Raw Data File with an open end-user license. This file is a single-band, 32-bit float DSM (digital surface model) which represents surface elevations of buildings, vegetation, and uncovered ground surfaces in meters... Tags: Coastal, Coastal Erosion, Coastal and River, Engineering, Engineering Geology, All tags... Environmental, Geologic, Geologic Hazards, Geological Process, Geology, Geomorphology, Hazards, Hillshade Image, Methods, Orthoimagery, Raster Image, Seward Peninsula, Surface, Surficial, Surficial Geology, Teller, Wales, geoscientificInformation, Fewer tags Photogrammetric digital surface models and orthoimagery for the continuous coastline, Wales to Platinum, Alaska, segment C: Nome to Elim Aerial photographs of the coastline from Nome to Elim were collected on August 23, 2015. The photographs were processed using Structure-from-Motion (SfM) photogrammetric techniques. Global Positioning System (GPS) checkpoints were collected via a Global Navigation Satellite System (GNSS) survey conducted between August 15 and September 14, 2015. For the purposes of open access to elevation and orthoimagery datasets in coastal regions of Alaska, this collection is being released as a Raw Data File with an open end-user license. Orthoimages contain 4-band, 8-bit, unsigned raster data (red/green/blue/no data; file format-GeoTIFF; source-Fairbanks Fodar) with 20 cm GSD. No-data values are found in band 4 or shown as... Tags: Bear Creek, Bonanza River, Cape Darby, Cape Nome, Coastal, All tags... Coastal Erosion, Coastal and River, Daniels Creek, Dry Creek, Elim, Engineering, Engineering Geology, Environmental, Fish River, Flambeau River, Geologic, Geologic Hazards, Geological Process, Geomorphology, Golovin, Hazards, Hillshade Image, Iron Creek, Kachauik River, Kwiniuk River, Methods, Moses Point Fishing Village, Mudyutok River, Nome, Nome River, Orthoimagery, Port Safety, Portage Creek, Raster Image, Rock Creek, Snake River, Solomon, Solomon River, Surface, Surficial, Surficial Geology, White Mountain, Yuonglik River, geoscientificInformation, Fewer tags Coastal hazard field investigations in response to the November 2011 Bering Sea storm, Norton Sound, Alaska On November 8, 2011, an extra-tropical cyclone with a low pressure of 945 millibars developed over the Bering Sea and moved northeast across the western coast of Alaska. This large storm brought high winds (gusts of up to 85 mph) to the entire region and a storm surge of approximately 3 meters to parts of Norton Sound. The storm caused extensive flooding in the lower portion of Golovin on the afternoon of November 9, 2011. A team of Alaska Division of Geological & Geophysical Surveys (DGGS) scientists visited Golovin on November 15, 2011, to document peak water levels, runup elevations, and inundation extents caused by this event. These data were combined with photographs taken by local residents during the event... Tags: Bering Straits CRSA Coastal District, Coastal, Coastal Erosion, Flood, Geologic Hazards, All tags... Ice Push, Methods, Nome, Nome Quadrangle, Norton Bay Quadrangle, Norton Sound, Shoreface, Solomon Quadrangle, Storm Surge, Tides, Unalakleet Quadrangle, geoscientificInformation, Fewer tags Lidar data for the community of Golovin, Alaska This publication presents lidar data collected over the community of Golovin, on the southern coast of the Seward Peninsula in western Alaska (fig. 1). The original data were collected on November 5, 2013, by Quantum Spatial. The complete, classified lidar dataset was purchased by the State of Alaska Division of Geological & Geophysical Surveys in 2014 in support of coastal vulnerability mapping efforts. For the purposes of open access to lidar datasets in coastal regions of Alaska, this collection is being released as a Raw Data File with an open end-user license. The horizontal datum for this dataset is NAD83 (CORS96), the vertical datum is NAVD88, Geoid 09, and it is projected in UTM Zone 3 North. Units are in... Tags: Coastal, Coastal and River, Digital Surface Model (DSM), Geomorphology, Golovin, All tags... Hillshade Image, LAS Index Shapefile, LiDAR, LiDAR LAS File Format, Point Cloud Data, Raster Image, Remote Sensing, Seward Peninsula, Shaded Relief, Solomon Quadrangle, Surface, Topography, geoscientificInformation, Fewer tags Photogrammetric digital surface models and orthoimagery for the continuous coastline, Wales to Platinum, Alaska, segment B: Teller to Nome Aerial photographs of the coastline from Teller to Nome were collected between August 26, 2015 - August 27, 2015. The photographs were processed using Structure-from-Motion (SfM) photogrammetric techniques. Global Positioning System (GPS) checkpoints were collected via a Global Navigation Satellite System (GNSS) survey conducted between August 15 and September 14, 2015. For the purposes of open access to elevation and orthoimagery datasets in coastal regions of Alaska, this collection is being released as a Raw Data File with an open end-user license. This file is a single-band, 32-bit float DSM (digital surface model) which represents surface elevations of buildings, vegetation, and uncovered ground surfaces in... Tags: Brevig Mission, Coastal, Coastal and River, Engineering, Engineering Geology, All tags... Environmental, Geologic Hazards, Geology, Geomorphology, Hazards, Hillshade Image, Marine Geology, Methods, Nome, Orthoimagery, Raster Image, Sinuk, Surficial, Teller, geoscientificInformation, Fewer tags