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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
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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
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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
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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
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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
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