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 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

Results from local knowledge of berry resources surveys administered to community experts in four villages of the Yukon-Kuskokwim Delta, Alaska

A trichotomous choice survey was used to document local expert observations of five berry species locally known as: salmonberry (Rubus chamaemorus), blackberry (Empetrum nigrum), cranberry (Vaccinium vitis-idaea), blueberry (Vaccinium uliginosum), and red berry (Rubus arcticus). The survey consisted of propositions concerning importance of specific berry species within Indigenous households; observations of changes in berry abundance, phenology, habitat, or availability; attribution of potential drivers of change; and instance of changes in behavior in response to changing berry resources. Respondents were asked to agree (yes) or disagree (no) with propositions or state that they were unsure of an answer (don’t...

Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Botany, Chevak, Ecology, Emmonak, Hooper Bay, All tags... Indigenous Knowledge, Kotlik, Yukon Delta, Fewer tags