AndreaBozzo/ceres-open-data-index huggingface dataset:
Photogrammetry-derived orthoimagery and elevation for Wainwright, Alaska, collected August 3, 2021

The State of Alaska Division of Geological & Geophysical Surveys (DGGS) collected low-altitude aerial images from an unmanned aerial vehicle (UAV) on August 3, 2021 and used Structure-from-Motion (SfM) photogrammetry to produce a digital surface model (DSM) and orthoimage of Wainwright. The orthoimage and elevation data are for assessing coastal hazards and changes. We used Trimble Business Center to process the Global Navigation Satellite System (GNSS) data used for positional control. We used Agisoft Metashape Professional to process the photogrammetry data. 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/10.14509/30791).

Tags: aerial, aerial geology, aerial photography, coastal, coastal and river, coastal and river hazards, coastal erosion, dggs, digital surface model (dsm), elevation, emergency preparedness, engineering, engineering geology, environmental, erosion, geologic, geologic hazards, geological process, geology, geomorphology, geotechnical, hazards, north slope, north slope borough, north slope borough coastal district, orthoimagery, photogrammetry, raster image, remote sensing, sea level changes, shelf, shoreface, structure from motion, surface, surficial, surficial geology, topography, unconsolidated deposits, wainwright, water, web service
Organization: State of Alaska
Ladue electromagnetic and magnetic airborne geophysical survey data compilation

The Ladue electromagnetic and magnetic airborne geophysical survey is located in eastern Alaska in the Fortymile mining district, about 325 kilometers southeast of Fairbanks. Frequency domain electromagnetic and magnetic data were collected with the DIGHEMV system in August 2010. A total of 5471.1 line kilometers were collected covering 1928.9 square kilometers. Line spacing was 400 meters (m). Data were collected 30 m above the ground surface from a helicopter towed sensor platform ('bird') on a 30 m long line. The survey data were aquired and/or processed by Fugro Airborne Surveys Corp. and Fugro GeoServices, Inc. and administered by the Alaska Geological & Geophysical Surveys (DGGS). The data, as well as additional metadata, are available from the DGGS website: http://doi.org/10.14509/30261.

Tags: aeromagnetic, aeromagnetic data, aeromagnetic map, aeromagnetic survey, airborne geophysical survey, analytic signal, apparent resistivity data, apparent resistivity map, apparent resistivity survey, big creek, chicken creek, conductivity survey, deep creek, divide mountain, dude creek, electromagnetic data, electromagnetic survey, exploration, first vertical derivative, fortymile mining district, frequency domain electromagnetic data, geologic, geology, geophysical map, geophysical survey, geophysics, geophysics search tag, gridded data, ladue river, liberty creek, line data, magnetic data, magnetic survey, magnetics, mccord creek, mcelfish creek, remote sensing, resistivity, resistivity survey, sixtymile river
Organization: State of Alaska
Active and potentially active faults in or near the Alaska Highway corridor, Delta Junction to Dot Lake, Alaska

During the 2006 and 2007 field seasons, geologic features indicative of possible youthful surface faulting in or near the Alaska Highway corridor between Delta Junction and Dot Lake were identified by helicopter and fixed-wing air reconnaissance, augmented by interpretation of stereo air photos, remotely sensed images, and aeromagnetic and electromagnetic (EM) datanction to the eastern boundary of the Mt. Hayes Quadrangle. The largest of these faults is the previously unrecognized Dot "T" Johnson fault, a major west-trending, south-dipping thrust fault bordering the northern margin of the Alaska Range along the south side of the Tanana River valley. Two other faults identified as active in this study, the Canteen and Granite Mountain-Panoramic faults, are northeast-trending, left-lateral, strike-slip faults that connect segments of the Dot "T" Johnson thrust system, where they are separated by large left steps. The Billy Creek fault is a northeast-trending, left-lateral, strike-slip fault in the Yukon-Tanana Upland north of the Tanana River valley.

Tags: alaska highway corridor, alaska pipeline, big delta, big delta quadrangle, c14, delta junction, delta river, denali fault, dot lake, faulting, faults, geologic hazards, holocene, mount hayes quadrangle, nenana gravel, pleistocene, quaternary, strike-slip, structural geology, structure, tanana river, thrust, transportation corridor, white river ash, yukon-tanana upland
Organization: State of Alaska
High-resolution lidar data for infrastructure corridors, Gulkana 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 vegetation digital surface models (veg_DSM) represent the above ground elevation of the highest laser return with all vegetation greater than 20 cm above the ground included.

Tags: alaska, alaska highway corridor, alaska pipeline, digital surface model (dsm), gasline, geomorphology, gulkana quadrangle, lidar, proposed natural gas pipeline, raster image, remote sensing, state of, trans-alaska pipeline, vegetation digital surface model (dsm)
Organization: State of Alaska
Southeastern extension of Salcha River-Pogo electromagnetic and magnetic airborne geophysical survey data compilation

This geophysical survey is located in interior Alaska in the Goodpaster mining district, about 150 kilometers southeast of Fairbanks. Frequency domain electromagnetic and magnetic data were collected with the DIGHEMV system in August 2001. A total of 729.9 line kilometers were collected covering 237.4 square kilometers. Line spacing was 400 meters (m). Data were collected 30 m above the ground surface from a helicopter towed sensor platform ('bird') on a 30 m long line. The data, as well as additional metadata, are available from the DGGS website: http://doi.org/10.14509/30185.

Tags: aeromagnetic, aeromagnetic data, aeromagnetic map, aeromagnetic survey, airborne geophysical survey, analytic signal, apparent resistivity data, apparent resistivity map, apparent resistivity survey, beverly prospect, california creek, central creek, conductivity survey, electromagnetic data, electromagnetic survey, exploration, first vertical derivative, frequency domain electromagnetic data, geologic, geology, geophysical map, geophysical survey, geophysics, geophysics search tag, glacier creek, goodpaster river, gridded data, line data, magnetic data, magnetic survey, magnetics, remote sensing, resistivity, resistivity survey, scott prospect, shawnee peak, sonora creek, tan creek ridge prospect
Organization: State of Alaska
Simplified Geologic Map and Cross Sections of Central and East Anchorage, Alaska

This geologic map and preliminary cross sections of central and east Anchorage, Alaska, are based on previous mapping, limited new photointerpretation, and available subsurface data. Using PC-based Geographic Information System (GIS) software, the existing geologic map has been updated and simplified by adding recent fill deposits and combining units of similar genesis, composition, and age that are also recognizable in the subsurface. The GIS database consists of a USGS geologic map and over 4,000 geotechnical boreholes and water-well logs provided by numerous public and private sources. Geologic cross sections were developed by using GIS to project graphic lithologic logs into scaled vertical layouts along selected lines. Stratigraphic units were manually correlated using the log sections as guides. Identification and correlation of subsurface units are somewhat hampered by complex glacial geology, sparseness of deep boreholes, and significant variation in lithologic descriptions among many drillers. Although these limitations result in some generalized, undifferentiated geologic units, the differences among interpreted units are of the level desired by the geotechnical user community for highlighting engineering and seismic behavior.

Tags: anchorage quadrangle, bootlegger cove clay, bootlegger cove formation, borehole logs, chugach mountains, geotechnical, ground water, holocene, pleistocene, well logs
Organization: State of Alaska
Shoreline change at Alaska coastal communities, Wales, 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, storm surge, surface, tides, topography, wales, water
Organization: State of Alaska
Shoreline change at Alaska coastal communities, Wainwright, 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, storm surge, surface, tides, topography, wainwright, water
Organization: State of Alaska
Mercury injection capillary pressure (MICP) results from outcrop samples in the Naknek Formation, Iniskin Peninsula, Alaska

The State of Alaska Division of Geological & Geophysical Surveys (DGGS) is currently engaged in a multi-year study of the hydrocarbon potential of the Tertiary and Mesozoic strata in Cook Inlet basin. This report summarizes mercury injection capillary pressure (MICP) data for nine outcrop and measured section samples collected from the Naknek Formation on the Iniskin Peninsula in Cook Inlet. All samples were analyzed by PetroTech Associates, Houston, TX. Two of the samples were found to have overall capillary properties that would make them moderately good quality, Type B seals.

Tags: analyses, analytical results, cook inlet, cook inlet basin, gas basins, geologic, geology, iniskin peninsula, mercury injection capillary pressure analysis, mesozoic, naknek formation, non-metals, oil and gas, oil and gas basin, oil basins, outcrop samples, permeability, petroleum, petroleum basin study, porosity, reservoir, reservoir evaluation, reservoir quality, resources, sample location, sample location map
Organization: State of Alaska
Alaska shoreline change tool

Coastlines are dynamic features that change shape and position on a range of timescales. As a result of this variability, many coastal communities in Alaska must carefully consider patterns of coastal erosion and/or accretion to appropriately plan for the future. Until now, a lack of available information and resources related to shoreline positional data has created challenges in assessing and planning for coastal hazards such as erosion. To address this identified data need, the Alaska Division of Geological & Geophysical Surveys (DGGS) has created the Alaska Shoreline Change Tool, an interactive map that displays historical and projected shoreline positions. This new tool will improve hazard assessments and aid in local management decisions. The Alaska Shoreline Change Tool contains the best available information for shoreline change analysis in Alaska. These data come from many sources and include contributions from shoreline mapping projects conducted by numerous investigators. This digital data distribution package provides digitized, historic shorelines that are proximal to the community of Port Heiden

Organization: State of Alaska
Bristol Bay and Alaska Peninsula 2004: Fieldwork and sample analyses compilation report

These data are part of a preliminary report based on the 22-day, two-phase, 2004 Bristol Bay-Alaska Peninsula field program. The program's first phase focused on source rock potential of the Mesozoic section, and the second phase focused on reservoir potential and stratigraphic architecture of Tertiary rocks. Data included here are rock sample details, field sample locations, total organic carbon measurements, and porosity and permeability analysis results.

Tags: alaska peninsula, bear lake formation, bristol bay quadrangle, chignik formation, cretaceous, eocene, herendeen formation, jurassic, kamishak formation, kialagvik formation, milky river formation, miocene, naknek formation, oligocene, organic geochemistry, permeability, pliocene, porosity, port moller, shelikof formation, stepovak formation, tertiary, tolstoi formation, triassic, wide bay
Organization: State of Alaska
Kasaan electromagnetic and magnetic airborne geophysical survey data compilation

The Kaasan geophysical survey is located in southeast Alaska in the Ketchikan area, about 350 kilometers south of Juneau, Alaska. Frequency domain electromagnetic and magnetic data were collected with the DIGHEMV system in May 1992. A total of 679 line kilometers were collected covering 133.6 square kilometers. Line spacing was 200 meters (m). Data were collected approximately 30 m above the ground cover or tree canopy from a helicopter-towed sensor platform ("bird") on a 30-m-long line. The large trees and steep terrain resulted in an average ground clearance of 150 m. The Kaasan survey was flown for the American Copper & Nickel Company, Inc. and provided to DGGS by the Sealaska Corporation. The data were merged and released with the 1999 Ketchikan geophysical survey maps. Map sheets and some of the other files in this data release contain data from adjacent or nearby surveys. The data, as well as additional metadata, are available from the DGGS website: http://doi.org/10.14509/30432.

Tags: aeromagnetic, aeromagnetic data, aeromagnetic map, aeromagnetic survey, airborne geophysical survey, analytic signal, apparent resistivity data, apparent resistivity map, apparent resistivity survey, clarence strait, conductivity survey, electromagnetic data, electromagnetic survey, exploration, first vertical derivative, frequency domain electromagnetic data, geologic, geology, geophysical map, geophysical survey, geophysics, geophysics search tag, gridded data, it mine, jacobs mountain, kasaan, kasaan bay, kasaan mountain, kasaan peninsula, ketchikan mining district, line data, linkum creek, magnetic data, magnetic survey, magnetics, mamie mine, mount andrew, mount andrews mine, poor man bay, poor man creek, poor man mine, remote sensing, resistivity, resistivity survey, rich hill mine, southeast alaska, tolstoi bay, tolstoi mountain, uncle sam mine
Organization: State of Alaska
Chulitna electromagnetic and magnetic airborne geophysical survey

This Chulitna electromagnetic and magnetic airborne geophysical survey is located in interior Alaska in the Chulitna mining district, about 200 kilometers south of Fairbanks, Alaska and about 200 kilometers north of Anchorage, Alaska. Frequency domain electromagnetic and magnetic data were collected with the DIGHEMV system in September 1996. A total of 2647.7 line kilometers were collected covering 943.5 square kilometers. Line spacing was 400 meters (m). Data were collected 30 m above the ground surface from a helicopter towed sensor platform ('bird') on a 30 m long line. The data, as well as additional metadata, are available from the DGGS website: http://doi.org/10.14509/30416.

Tags: aeromagnetic, aeromagnetic data, aeromagnetic map, aeromagnetic survey, airborne geophysical survey, analytic signal, antimony creek, apparent resistivity data, apparent resistivity map, apparent resistivity survey, bonnifield mining district, broad pass, bryn mawr creek, bull river, canyon creek, christy creek, chulitna river, coal creek, colorado, conductivity survey, copeland creek, costello creek, east fork chulitna river, electromagnetic data, electromagnetic survey, exploration, first vertical derivative, fourth of july creek, frequency domain electromagnetic data, geologic, geology, geophysical map, geophysical survey, geophysics, geophysics search tag, golden zone mine, granite creek, gridded data, hardage creek, honolulu creek, hurricane gulch, line data, little honolulu creek, little shotgun creek, long creek, lookout mountain, magnetic data, magnetic survey, magnetics, mccallie creek, middle fork chulitna river, ohio creek, partin creek, remote sensing, resistivity, resistivity survey, shotgun creek, squaw creek, summit lake, tsaani creek, valdez creek mining district, west fork chulitna river
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.Lidar intensity images depict intensity values of the lidar-laser returns.

Tags: alaska, alaska highway corridor, alaska pipeline, gasline, geomorphology, healy quadrangle, lidar, lidar intensity image, proposed natural gas pipeline, remote sensing, shaded relief, state of, topographic map, trans-alaska pipeline
Organization: State of Alaska
Airborne magnetic geophysical survey of the Bethel basin, Alaska, data compilation

The airborne magnetic geophysical survey of the Bethel Basin, Alaska is located in the Bethel, Baird Inlet, Russian Mission, and Marshall quadrangles near the town of Bethel in southwest Alaska. Magnetic data were collected during October 1996 by Sanders Geophysics Ltd. and August 1994 by GEONEX Aero Service and its subsidiaries. A total of 20,915 line kilometers were collected covering 14,953 square kilometers. Line spacing was 800 meters (m). Data were collected using a fixed-wing aircraft with a median ground clearance of 90 m. The data, as well as additional metadata, are available from the DGGS website: http://doi.org/10.14509/30458.

Organization: State of Alaska
Preliminary evaluation of bedrock potential for naturally occurring asbestos in Alaska

Naturally occurring asbestos (NOA) develops in predictable geologic settings worldwide. Various geologic units throughout Alaska include rock types that could potentially host naturally occurring asbestos minerals. This report and digital data release show geologic map units throughout Alaska rated according to their interpreted potential to host NOA. To summarize locations of known asbestos occurrences, we searched the U.S. Geological Survey's (USGS's) Alaska Resource Data File (http://ardf.wr.usgs.gov) and Mineral Resource Data System (http://mrdata.usgs.gov/mineral-resources/mrds-ak.html) for references to asbestos in Alaska and compiled the resulting 62 documented asbestos occurrences. To better predict additional locations where NOA may exist in Alaska, we compiled published geologic mapping throughout the state, developed a set of criteria to rate relative NOA potential according to rock type, and assigned a rating to each bedrock map unit. The products of this work are (1) a report and summary maps that present an overview of the problem and discussion of the data compilation methods and information sources, (2) a table listing known occurrences of naturally occurring asbestos in Alaska, and (3) digital geologic maps that portray the extent of various bedrock units that have been mapped throughout Alaska and a ranking of their interpreted relative potential for hosting asbestos minerals.

Tags: alaska statewide maps, alaska statewide quadrangle, asbestos, construction materials, derivative, engineering geologic map, historic mine, mineral localities, mineral prospect, mountain leather, tremolite, ultramafic
Organization: State of Alaska
High-resolution lidar data for infrastructure corridors, Chandalar 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. Hillshade (shaded relief) images, produced from bare-earth DEMs provide a visual representation of topographic relief.

Tags: alaska, alaska highway corridor, alaska pipeline, chandalar quadrangle, gasline, geomorphology, hillshade image, lidar, proposed natural gas pipeline, remote sensing, shaded relief, state of, topographic map, trans-alaska pipeline
Organization: State of Alaska