AndreaBozzo/ceres-open-data-index huggingface dataset:
Photogrammetric digital surface models and orthoimagery for the continuous coastline, Wales to Platinum, Alaska, segment I: Newtok to Nightmute

Aerial photographs of the coastline from Newtok to Nightmute were collected on May 7, 2016. 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 transparent in red/green/blue images. The file employs Lempel-Ziv-Welch (LZW) compression. Light exposures in the orthoimages are a result of daily weather conditions, which ranged from low cloud cover, rain, and full sun.

Tags: coastal, coastal and river, engineering, engineering geology, environmental, geologic hazards, geology, geomorphology, hazards, marine geology, methods, newtok, nightmute, raster image, surficial
Organization: State of Alaska
Surficial-geologic map of the Chulitna region, southcentral Alaska

This map is the result of field investigations by DGGS in 1997 and 1998. This geologic map and report supersede the previously released Public Data File 99-24C, Preliminary surficial-geologic map of the Healy A-6 Quadrangle, southcentral Alaska. The current map has been updated to include mapping of areas adjacent to the Healy A-6 Quadrangle. Field investigations were part of a two-year mapping program to provide geologic ground truth for airborne geophysical surveys flown by DGGS in the Chulitna region of southcentral Alaska during 1996.

Tags: alaska, cenozoic, chulitna, elmendorf stade, geology, glacial deposits, healy quadrangle, holocene, mining, naptowne glaciation, quaternary, riley creek glaciation, southcentral alaska, state of, statemap project, surficial geology, unconsolidated deposits
Organization: State of Alaska
High-resolution lidar data for infrastructure corridors, Tanana Quadrangle, Alaska

In advance of design, permitting, and construction of a pipeline to deliver North Slope natural gas to out-of-state customers and Alaska communities, the Division of Geological & Geophysical Surveys (DGGS) has acquired lidar (Light Detection and Ranging) data along proposed pipeline routes, nearby areas of infrastructure, and regions where significant geologic hazards have been identified. Lidar data will serve multiple purposes, but have primarily been collected to (1) evaluate active faulting, slope instability, thaw settlement, erosion, and other engineering constraints along proposed pipeline routes, and (2) provide a base layer for the state-federal GIS database that will be used to evaluate permit applications and construction plans. The dataset represents all classified laser returns from the lidar survey and their associated geospatial coordinates.

Tags: alaska, alaska highway corridor, alaska pipeline, gasline, geomorphology, lidar, lidar las file format, point cloud data, proposed natural gas pipeline, remote sensing, state of, tanana quadrangle, trans-alaska pipeline
Organization: State of Alaska
High-resolution lidar data for infrastructure corridors, Big Delta Quadrangle, Alaska

In advance of design, permitting, and construction of a pipeline to deliver North Slope natural gas to out-of-state customers and Alaska communities, the Division of Geological & Geophysical Surveys (DGGS) has acquired lidar (Light Detection and Ranging) data along proposed pipeline routes, nearby areas of infrastructure, and regions where significant geologic hazards have been identified. Lidar data will serve multiple purposes, but have primarily been collected to (1) evaluate active faulting, slope instability, thaw settlement, erosion, and other engineering constraints along proposed pipeline routes, and (2) provide a base layer for the state-federal GIS database that will be used to evaluate permit applications and construction plans. The normalized digital surface models (nDSM) represent the above ground elevation of the highest laser return with all vegetation included.

Tags: alaska, alaska highway corridor, alaska pipeline, big delta quadrangle, data normalized digital surface model (ndsm), gasline, geomorphology, lidar, proposed natural gas pipeline, raster image, remote sensing, state of, trans-alaska pipeline
Organization: State of Alaska
High-resolution lidar data for infrastructure corridors, Tanacross Quadrangle, Alaska

In advance of design, permitting, and construction of a pipeline to deliver North Slope natural gas to out-of-state customers and Alaska communities, the Division of Geological & Geophysical Surveys (DGGS) has acquired lidar (light detection and ranging) data along proposed pipeline routes, nearby areas of infrastructure, and regions where significant geologic hazards have been identified. Lidar data will serve multiple purposes, but have primarily been collected to (1) evaluate active faulting, slope instability, thaw settlement, erosion, and other engineering constraints along proposed pipeline routes, and (2) provide a base layer for the state-federal GIS database that will be used to evaluate permit applications and construction plans.Lidar intensity images depict intensity values of the lidar-laser returns.

Tags: alaska, alaska highway corridor, alaska pipeline, gasline, geomorphology, lidar, lidar intensity image, proposed natural gas pipeline, remote sensing, shaded relief, state of, tanacross quadrangle, topographic map, trans-alaska pipeline
Organization: State of Alaska
High-resolution lidar data for infrastructure corridors, Tyonek Quadrangle, Alaska

In advance of design, permitting, and construction of a pipeline to deliver North Slope natural gas to out-of-state customers and Alaska communities, the Division of Geological & Geophysical Surveys (DGGS) has acquired lidar (Light Detection and Ranging) data along proposed pipeline routes, nearby areas of infrastructure, and regions where significant geologic hazards have been identified. Lidar data will serve multiple purposes, but have primarily been collected to (1) evaluate active faulting, slope instability, thaw settlement, erosion, and other engineering constraints along proposed pipeline routes, and (2) provide a base layer for the state-federal GIS database that will be used to evaluate permit applications and construction plans. Bare-earth digital elevation models (DEM) represent the earth's surface with all vegetation and human-made structures removed.

Tags: alaska, alaska highway corridor, alaska pipeline, bare-earth digital elevation model (dem), gasline, geomorphology, lidar, proposed natural gas pipeline, raster image, remote sensing, state of, trans-alaska pipeline, tyonek quadrangle
Organization: State of Alaska
High-resolution lidar data for infrastructure corridors, Valdez Quadrangle, Alaska

In advance of design, permitting, and construction of a pipeline to deliver North Slope natural gas to out-of-state customers and Alaska communities, the Division of Geological & Geophysical Surveys (DGGS) has acquired lidar (Light Detection and Ranging) data along proposed pipeline routes, nearby areas of infrastructure, and regions where significant geologic hazards have been identified. Lidar data will serve multiple purposes, but have primarily been collected to (1) evaluate active faulting, slope instability, thaw settlement, erosion, and other engineering constraints along proposed pipeline routes, and (2) provide a base layer for the state-federal GIS database that will be used to evaluate permit applications and construction plans. Bare-earth digital elevation models (DEM) represent the earth's surface with all vegetation and human-made structures removed.

Tags: alaska, alaska highway corridor, alaska pipeline, bare-earth digital elevation model (dem), gasline, geomorphology, lidar, proposed natural gas pipeline, raster image, remote sensing, state of, trans-alaska pipeline, valdez quadrangle
Organization: State of Alaska
Magmatic and structural framework of PGE and other mineralization in northwestern Wrangellia, central Alaska

A thick and regionally extensive sequence of low-grade-metamorphosed Late Triassic basaltic rocks, the Nikolai Greenstone, is a characteristic component of the stratigraphy of the Wrangellia terrane in central and southeastern Alaska, Yukon, and British Columbia. Mafic to ultramafic intrusions feeding this extensive volcanic province hold high geologic potential for discovery of economically signifigant magmatic sulfide deposits. This digital data file provides microprobe compositions of olivine and pyroxine from ultramafic samples across the study area. Mineral compositions and the ratio of molar MgO per(MgO+FeO) interpret magma evolution and provide insight into the magmatic-geochemical framework of Ni-Cu-Co-PGE mineralization related to the Butte, Rainy, Eureka, Canwell, and Talkeetna Mountains intrusions. These data accompany a summary report of findings from a multiyear Alaska Division of Geological & Geophysical Surveys (DGGS) project to better understand the geologic context of mineralization hosted by the Wrangellia terrane in the eastern Alaska Range and Talkeetna Mountains, with particular emphasis on evaluating the area's potential for hosting the strategic and critical platinum-group elements (PGEs) and cobalt (Co). Users can access the complete report and digital data from the DGGS website: http://doi.org/10.14509/30468.

Tags: delta river mining district, geochemical data, geochemistry, geologic, geological process, geology, igneous, igneous rocks, intrusion-hosted, major oxides, microprobe analysis, mineral composition, mineral deposit models, mineral exploration, mineralogy, minerals, nikolai greenstone, sample location, statemap project, strategic and critical minerals assessment project, ultramafic, valdez creek mining district, wrangellia terrane, yentna mining district
Organization: State of Alaska
Shoreline change at Alaska coastal communities, Stebbins, Alaska

The Division of Geological & Geophysical Surveys has analyzed long-term shoreline change at 48 Alaska communities. Shoreline datasets were compiled from previously published U.S. Geological Survey assessments and created from historical and recent aerial images by the Alaska Division of Geological & Geophysical Surveys. Shorelines were analyzed to calculate shoreline change rates every 25 meters along coastlines and tidally influenced riverbanks using the Digital Shoreline Analysis System (DSAS; Himmelstoss and others, 2018). The geodatabase for each community includes shoreline positions, the alongshore baseline used to cast transects, and transects that include shoreline change rates and statistics. All files can be downloaded free of charge from the Alaska Division of Geological & Geophysical Surveys website (http://doi.org/10.14509/30552).

Tags: aerial, aerial photography, alaska, coastal, dggs, emergency preparedness, engineering, environmental, erosion, flood, floodplain, geology, hazards, inundation, marine geology, outreach, sea level changes, shelf, shoreface, stebbins, storm surge, surface, tides, topography, water
Organization: State of Alaska
Shoreline change at Alaska coastal communities, Point Lay, Alaska

The Division of Geological & Geophysical Surveys has analyzed long-term shoreline change at 48 Alaska communities. Shoreline datasets were compiled from previously published U.S. Geological Survey assessments and created from historical and recent aerial images by the Alaska Division of Geological & Geophysical Surveys. Shorelines were analyzed to calculate shoreline change rates every 25 meters along coastlines and tidally influenced riverbanks using the Digital Shoreline Analysis System (DSAS; Himmelstoss and others, 2018). The geodatabase for each community includes shoreline positions, the alongshore baseline used to cast transects, and transects that include shoreline change rates and statistics. All files can be downloaded free of charge from the Alaska Division of Geological & Geophysical Surveys website (http://doi.org/10.14509/30552).

Tags: aerial, aerial photography, alaska, coastal, dggs, emergency preparedness, engineering, environmental, erosion, flood, floodplain, geology, hazards, inundation, marine geology, outreach, point lay, sea level changes, shelf, shoreface, storm surge, surface, tides, topography, water
Organization: State of Alaska
Ash fall contour map of the 2009 eruption of Redoubt Volcano, Alaska: Digital shapefiles of contours and sample locations

The 2009 eruption of Redoubt Volcano included 19 major tephra-producing explosions. Mass per unit area (MPUA) ash fall sampling of the resulting deposits allowed us to create isomass contours of the ash fall. This dataset contains the vector digital shapefiles of the ash fall contours for the explosive events. In addition, a point digital shapefile is included that describes more than 400 ash fall samples that were collected. For a detailed account of the 2009 eruption of Redoubt Volcano, see Schaefer, J.R., ed., 2012, The 2009 eruption of Redoubt Volcano, Alaska, with contributions by Bull, Katharine, Cameron, Cheryl, Coombs, Michelle, Diefenbach, Angie, Lopez, Taryn, McNutt, Steve, Neal, Christina, Payne, Allison, Power, John, Schneider, Dave, Scott, William, Snedigar, Seth, Thompson, Glenn, Wallace, Kristi, Waythomas, Chris, Webley, Peter, and Werner, Cynthia: Alaska Division of Geological & Geophysical Surveys Report of Investigation 2011-5, 45 p., available at http://dx.doi.org/10.14509/23123 . For a detailed description of the tephra fall deposits, see Wallace, K.L., Schaefer, J.R., and Coombs, M.L., in press, Character, mass, distribution, and origin of tephra-fall deposits from the 2009 eruption of Redoubt Volcano, Alaska—highlighting the importance of particle aggregation: Journal of Volcanology and Geothermal Research.

Tags: active volcanoes, aleutian arc, ash cloud, ash fall, geologic hazards, hazards, historic eruption, holocene, redoubt volcano, sample location, tephra, tephrochronology, volcanic ash, volcanic eruption, volcaniclastics, volcanology
Organization: State of Alaska
Photogrammetry-derived historical orthoimagery for Homer, Alaska from 1951, 1952, 1964, and 1985

The State of Alaska Division of Geological & Geophysical Surveys (DGGS) used Structure-from-Motion (SfM) photogrammetry to produce orthoimagery for the City of Homer and surrounding areas from 1951, 1952, 1964, and 1985 imagery. The orthometrically corrected imagery are for assessing coastal hazards and changes. The original photographs were collected by the U.S. Air Force (1951 and 1952), the Bureau of Land Management (BLM; 1964), and the National Aeronautics and Space Administration (NASA; 1985). Data were processed using Agisoft Metashape software. These products are released as a Raw Data File with an open end-user license. All files can be downloaded from the Alaska Division of Geological & Geophysical Surveys website (http://doi.org/10.14509/30824).

Tags: bear canyon, beluga lake, bidarki creek, bluff point, coal point, coastal, coastal and river, coastal erosion, cook inlet, dggs, diamond creek, diamond gulch, engineering, engineering geology, environmental, erosion, fritz creek, geologic, geologic hazards, geological process, geology, geomorphology, geotechnical, hazards, homer, homer spit, kachemak bay, kachemak city, lampert lake, mariner park, millers landing, mud bay, neilson canyon, orthoimagery, palmer creek, photogrammetry, remote sensing, shingle beach, slope, slope instability, structure from motion, surface, surficial, surficial geology, water, waterman canyon, web service, woodard canyon
Organization: State of Alaska
High-resolution lidar data for infrastructure corridors, Healy Quadrangle, Alaska

In advance of design, permitting, and construction of a pipeline to deliver North Slope natural gas to out-of-state customers and Alaska communities, the Division of Geological & Geophysical Surveys (DGGS) has acquired lidar (light detection and ranging) data along proposed pipeline routes, nearby areas of infrastructure, and regions where significant geologic hazards have been identified. Lidar data will serve multiple purposes, but have primarily been collected to (1) evaluate active faulting, slope instability, thaw settlement, erosion, and other engineering constraints along proposed pipeline routes, and (2) provide a base layer for the state-federal GIS database that will be used to evaluate permit applications and construction plans. The digital surface model represents percent canopy cover (between 0 and 1). Cover metric was computed in Fusion (McGaughey 2007), which assesses the percentage of total first returns within each cell that were returned from the canopy. For more specifics on Fusion Gridmetric outputs see the fusion manual (page 56).

Tags: alaska, alaska highway corridor, alaska pipeline, gasline, geomorphology, healy quadrangle, lidar, lidar canopy cover, pipeline, proposed natural gas pipeline, raster image, remote sensing, state of, trans-alaska pipeline
Organization: State of Alaska
High-resolution lidar data for infrastructure corridors, Talkeetna Mountains Quadrangle, Alaska

In advance of design, permitting, and construction of a pipeline to deliver North Slope natural gas to out-of-state customers and Alaska communities, the Division of Geological & Geophysical Surveys (DGGS) has acquired lidar (light detection and ranging) data along proposed pipeline routes, nearby areas of infrastructure, and regions where significant geologic hazards have been identified. Lidar data will serve multiple purposes, but have primarily been collected to (1) evaluate active faulting, slope instability, thaw settlement, erosion, and other engineering constraints along proposed pipeline routes, and (2) provide a base layer for the state-federal GIS database that will be used to evaluate permit applications and construction plans. The digital surface model represents percent canopy cover (between 0 and 1). Cover metric was computed in Fusion (McGaughey 2007), which assesses the percentage of total first returns within each cell that were returned from the canopy. For more specifics on Fusion Gridmetric outputs see the fusion manual (page 56).

Tags: alaska, alaska highway corridor, alaska pipeline, gasline, geomorphology, lidar, lidar canopy cover, pipeline, proposed natural gas pipeline, raster image, remote sensing, state of, talkeetna mountains quadrangle, trans-alaska pipeline
Organization: State of Alaska
Photogrammetric digital surface models and orthoimagery of Campbell Lake Dam, December 5, 2018

The State of Alaska Division of Geological & Geophysical Surveys (DGGS) produced digital surface models (DSMs) and orthorectified aerial imagery (orthoimagery) over selected locations in the greater Anchorage area following the Mw 7.1 November 30, 2018, Anchorage earthquake. We selected areas of interest (AOIs) based on initial damage reports from the Alaska Department of Transportation & Public Facilities (DOT&PF) and the United States Geological Survey (USGS) in order to document earthquake effects. Aerial photographs collected December 5-6, 2018, were processed using Structure-from-Motion (SfM) photogrammetric techniques to create sub-meter DSMs and orthoimagery. This digital data set covers Campbell Lake Dam and was collected on December 5, 2018. These data document ground conditions immediately following the 2018 Mw 7.1 Anchorage earthquake. For the purposes of open access to elevation and orthoimagery data sets throughout Alaska, this collection is being released as a Raw Data File with an open end-user license. The data and the data acquisition report are available from the DGGS website: https://elevation.alaska.gov/, http://doi.org/10.14509/30272.

Tags: aerial photography, anchorage, digital surface model (dsm), earthquake related hazards, earthquake related slope failure, elevation, engineering, fracturing, geologic, geologic hazards, geological process, geology, geomorphology, geotechnical, hazards, orthoimagery, photogrammetry, raster image, structure from motion, surficial geology, topography
Organization: State of Alaska
Surficial geologic map of the Tanana A-1 and A-2 quadrangles, central Alaska

This report provides detailed (1:63,360-scale) mapping of the Tanana A-1 and A-2 quadrangles (500 square miles; equivalent to eight 7.5-minute quadrangles). The area is part of the Manley Hot Springs-Tofty mining districts and adjacent to the Rampart mining district to the south of the Tanana B-1 Quadrangle. This report includes detailed surficial, structural, stratigraphic, and paleontologic data. Based on the resulting geologic maps, field investigations, and laboratory materials analyses, the report also includes derivative maps of geologic construction materials and geologic hazards. The Tanana A-1 and A-2 Quadrangles and surrounding area comprise several isolated mountainous ridges in the western Yukon-Tanana Upland of interior Alaska.

Tags: bison fossils, c14, cenozoic, fossils, gold, holocene, mammoth fossils, manley basin, manley hot springs, measured sections, mining, placer, pleistocene, quaternary, stratigraphy, surficial geology, tertiary, vertebrate fossils, yukon river
Organization: State of Alaska
Interpretive geologic bedrock map of the Tanana B-1 Quadrangle, central Alaska

Report of Investigation 97-15B, Interpretive geologic bedrock map of the Tanana B-1 Quadrangle, central Alaska, provides detailed (1:63,360-scale) surficial geologic mapping of the Tanana B-1 Quadrangle (250 square miles; equivalent to four 7.5 minute quadrangles). The area is part of the Manley Hot Springs-Tofty mining districts and adjacent to the Rampart mining district north of the Tanana A-1 and A-2 quadrangles. The complete report, geodatabase, and ESRI fonts and style files are available from the DGGS website: http://doi.org/10.14509/2552.

Tags: age dates, aloha creek, amphibolite, amy creek assemblage, analyses and sampling, baldry mountain, basalt, bedrock, bedrock geologic map, bedrock geology, boulder creek, california creek, cambrian, carbonates, chapman creek, chert, chicken creek, clastics, coal, conglomerate, cretaceous, devonian, diorite, dome, early cretaceous, early eocene, early permian, elephant mountain, felsic, florida creek, folding, garnet creek, gems, gems ncgmp09, geochemistry, geochronology, geologic, geologic map, geology, geomorphology, geothermometry, goldpan creek, granite, granite creek, graywacke, greenschist, greenstone, hoosier creek, hornfels, hot springs mining district, hunter creek, igneous, igneous rocks, index minerals, isograds, isotopes, jordan creek, joseph creek, jurassic, k-ar, limestone, livengood, livengood dome chert, lode, lost creek, marble, marshall creek, metals, metamorphic grade, metamorphic minerals, metamorphism, miller creek, minook creek, mississippian, mountain, nevada creek, ordovician, paleocene, pebble, pegmatite, permian, petrography, plutonic, plutonic hosted, precious metals, proterozoic, quartz, quartzite, rampart, rampart creek, rampart group, rampart mining district, regional, regional metamorphism, resource assessment, resources, rhyolite, rifting, rock creek, rocks, ruby creek, ruby terrane, russian creek, sample location, sandstone, schist, sedimentary, shale, siltstone, sixmile creek, slate creek, spruce creek, statemap project, structure, surficial, tectonics, terranes, tertiary, triassic, triple creek, trout creek, tuff, volcanic, wickersham unit, yukon river, yukon-tanana terrane, yukon-tanana upland
Organization: State of Alaska