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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 (DGGS) produced an orthorectified aerial optical image mosaic (orthoimage) and digital surface model over an area extending from milepost (MP) 17 to approximately MP 24.5 on the Alaska State Highway 7 (Haines Highway) north of Haines along the Chilkat River in southeast Alaska. The aerial photogrammetric survey targeted large debris fans and their alpine source areas on the west side of the Takshanuk Mountains in support of cryosphere hazards mapping and monitoring efforts. Aerial photographs and Global Navigation Satellite System (GNSS) data were collected on May 26, 2014, and were processed using Structure-from-Motion (SfM) photogrammetric techniques...
Tags: Aerial,
Alaska, State of,
Chilkat River,
Debris Flow,
Engineering, All tags...
Engineering Geology,
Environmental,
Geologic Hazards,
Geology,
Geomorphology,
Haines,
Hazards,
Klukwan,
Methods,
Orthoimagery,
Raster Image,
Slope,
Southeast Alaska,
Surface,
Surficial,
Takshanuk Mountains,
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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