AndreaBozzo/ceres-open-data-index huggingface dataset:
High-resolution lidar data for infrastructure corridors, Talkeetna 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 highest-hit digital surface models (DSM) represent the earth's surface with all vegetation and human-made structures included.

Tags: alaska, alaska highway corridor, alaska pipeline, gasline, geomorphology, highest hit digital surface model (dsm), lidar, proposed natural gas pipeline, raster image, remote sensing, state of, talkeetna quadrangle, trans-alaska pipeline
Organization: State of Alaska
Broad Pass electromagnetic and magnetic airborne geophysical survey data compilation

This Broad Pass electromagnetic and magnetic airborne geophysical survey is located in interior Alaska in the Bonnifield mining district, about 160 kilometers south of Fairbanks, Alaska and about 250 kilometers north of Anchorage, Alaska. Frequency domain electromagnetic and magnetic data were collected with the DIGHEMV system from July to August 2001. A total of 1970.2 line kilometers were collected covering 689.5 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/10.14509/30415.

Tags: aeromagnetic, aeromagnetic data, aeromagnetic map, aeromagnetic survey, airborne geophysical survey, analytic signal, apparent resistivity data, apparent resistivity map, apparent resistivity survey, bonnifield mining district, bruskasna creek, cantwell, cantwell creek, carlo creek, conductivity survey, drashner lake, edes lake, edmonds creek, electromagnetic data, electromagnetic survey, exploration, first vertical derivative, frequency domain electromagnetic data, geologic, geology, geophysical map, geophysical survey, geophysics, geophysics search tag, gridded data, jack river, line data, little windy creek, magnetic data, magnetic survey, magnetics, middle fork chulitna river, nenana river, reindeer hills, remote sensing, resistivity, resistivity survey, revine creek, schist creek, slime creek, summit lake, valdez creek mining district, windy creek
Organization: State of Alaska
Engineering-geologic map of the Alaska Highway Corridor, Robertson River to Tetlin Junction, Alaska

The engineering-geologic map is derived electronically, using Geographic Information System (GIS) software, from the surficial-geologic map of the second segment of the proposed natural gas pipeline corridor through the upper Tanana valley, a 12-mi-wide (19.3-km-wide) area that straddles the Alaska Highway through the upper Tanana River valley from the Robertson River eastward to near Tetlin Junction in the Tanacross Quadrangle (Reger and Hubbard, PIR 2009-6A). Surficial-geologic units were initially identified by interpretation of false-color ~1:65,000-scale infrared aerial photographs taken in July 1978, August 1980, and August 1981 and locally verified by field checking in 2007 and 2008. The map shows the distribution of surficial-geologic and bedrock units grouped genetically with common properties that are typically significant for engineering applications.

Tags: alaska, alaska highway corridor, alaska range, alluvial deposits, climate change, colluvial deposits, construction materials, crushed gravel, crushed rock, dot lake, engineering, engineering geology, floodplain, floods, gasline, geologic hazards, geologic map, geologic materials, holocene, icings, land subsidence, landslide, liquefaction, materials site, permafrost, pleistocene, proposed natural gas pipeline, quaternary, robertson river, sand & gravel, state of, subsidence, surficial geology, tanacross, tanacross quadrangle, taylor highway, tok, tok river, transportation corridor, unconsolidated deposits
Organization: State of Alaska
High-resolution lidar data for infrastructure corridors, Mount Hayes 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, mount hayes quadrangle, pipeline, proposed natural gas pipeline, raster image, remote sensing, state of, trans-alaska pipeline
Organization: State of Alaska
Reanalysis of historical U.S. Geological Survey sediment samples for geochemical data from the western part of the Wrangellia terrane, Anchorage, Gulkana, Healy, Mt. Hayes, Nabesna, and Talkeetna Mountains quadrangles, Alaska

The State of Alaska's Strategic and Critical Minerals (SCM) Assessment project, a State-funded Capital Improvement Project (CIP), is designed to evaluate Alaska's statewide potential for SCM resources. The SCM Assessment is being implemented by the Alaska Division of Geological & Geophysical Surveys (DGGS), and involves obtaining new airborne-geophysical, geological, and geochemical data. For the geochemical part of the SCM Assessment, thousands of historical geochemical samples from DGGS, U.S. Geological Survey (USGS), and U.S. Bureau of Mines archives are being reanalyzed by DGGS using modern, quantitative, geochemical-analytical methods. The objective is to update the statewide geochemical database to more clearly identify areas in Alaska with SCM potential. For this report, DGGS funded reanalysis of 1,682 historical USGS sediment samples from the statewide Alaska Geochemical Database Version 2.0 (AGDB2; Granitto and others, 2013). Samples were chosen from an area covering the western half of the Wrangellia Terrane in the Anchorage, Gulkana, Healy, Mt. Hayes, Nabesna, and Talkeetna Mountains quadrangles of south-central Alaska. USGS was responsible for sample retrieval from the Denver warehouse through the final quality assurance/quality control (QA/QC) of the geochemical analyses obtained through the USGS contract lab. The new geochemical data are published in this report as a coauthored DGGS report, and will be incorporated into the statewide geochemical databases of both agencies.

Tags: analyses, anchorage quadrangle, chemistry, critical minerals, geochemical data, geochemical surveys, geochemistry, glacial deposits, gulkana quadrangle, healy quadrangle, mineral assessment, mount hayes quadrangle, nabesna quadrangle, strategic and critical minerals assessment project, strategic minerals, stream sediments, talkeetna mountains quadrangle, trace elements, trace metals, wrangellia terrane
Organization: State of Alaska
W00116: NOS Hydrographic Survey , Outside Source Data - 2000, 2000-09-29

The National Oceanic and Atmospheric Administration (NOAA) has the statutory mandate to collect hydrographic data in support of nautical chart compilation for safe navigation and to provide background data for engineers, scientific, and other commercial and industrial activities. Hydrographic survey data primarily consist of water depths, but may also include features (e.g. rocks, wrecks), navigation aids, shoreline identification, and bottom type information.
							NOAA is responsible for archiving and distributing the source data as described in this metadata record.

Tags: active remote sensing, aircraft, bathymetry, bathymetry/seafloor topography, continent, doc/noaa/nesdis/ncei, doc/noaa/nesdis/ngdc, earth remote sensing instruments, earth science, hawaii, hydrographic surveys for selected locations within the united states (hydro_bathy_2006), island of molokai, kaunakakai, lidar/laser sounders, marine sediments, national centers for environmental information, national geophysical data center, nesdis, noaa, north america, ocean, oceans, profilers/sounders, seafloor topography, sediment composition, u.s. department of commerce, united states of america, water depth
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Shoreline change at Alaska coastal communities, Clarks Point, 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, clarks point, 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, water
Organization: State of Alaska
Photogrammetric digital surface models and orthoimagery for the continuous coastline, Wales to Platinum, Alaska, segment B: Teller to Nome

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. 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 No Data value is set to -32767. The file employs LZW compression.

Tags: brevig mission, coastal, coastal and river, engineering, engineering geology, environmental, geologic hazards, geology, geomorphology, hazards, hillshade image, holocene, marine geology, methods, nome, orthoimagery, raster image, sinuk, surficial, teller
Organization: State of Alaska
Photogrammetry-derived orthoimagery and elevation data for Barry Arm landslide, Southcentral Alaska, June 27, 2020

The State of Alaska Division of Geological & Geophysical Surveys (DGGS) used Structure-from-Motion (SfM) photogrammetry from an unmanned aerial system (UAS) to produce a digital surface model (DSM) and orthoimagery of a large landslide in northern Barry Arm, northwest Prince William Sound, Alaska, during near snow-free ground conditions on June 27, 2020. The survey aims to provide snow-free surface elevations and imagery data to assess landslide movement with repeat surveys during snow-free surface conditions. This data release is one of a series of DGGS publications to present elevation data. The photogrammetry and Global Navigation Satellite System (GNSS) data were collected on June 26-27, 2020, and processed using Agisoft Metashape. This data collection is being released as a Raw Data File with an open end-user license. All files can be downloaded free of charge from the Alaska Division of Geological & Geophysical Surveys website (http://doi.org/10.14509/30596).

Tags: aerial, aerial geology, aerial photography, barry arm, barry glacier, college fjord, debris avalanche, dggs, digital surface model (dsm), elevation, engineering, engineering geology, geologic, geologic hazards, geological process, geology, geomorphology, geotechnical, glacial, glacial deposits, glacial geology, glacial geomorphology, glacial processes, harriman fiord, hazards, holocene, landslide, landslide susceptibility, orthoimagery, passage canal, photogrammetry, point cloud data, port wells, remote sensing, rock avalanche, rockfall, slope, slope instability, structure from motion, surface, surficial, surficial geology, topography, tsunami, unconsolidated deposits, web service
Organization: State of Alaska
Shoreline change at Alaska coastal communities, Koyuk, 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, koyuk, marine geology, outreach, sea level changes, shelf, shoreface, storm surge, surface, tides, topography, water
Organization: State of Alaska
Tsunami inundation maps for Akhiok, Chiniak, Old Harbor, Ouzinkie, and Port Lions on Kodiak Island, Alaska

Report of Investigation 2021-6, Tsunami inundation maps for Akhiok, Chiniak, Old Harbor, Ouzinkie, and Port Lions on Kodiak Island, Alaska, evaluates potential tsunami hazards for the Kodiak Island communities of Akhiok, Chiniak, Old Harbor, Ouzinkie, and Port Lions, Alaska, by numerically modeling the extent of inundation from tsunami waves generated by hypothetical earthquakes. Worst-case inundation scenarios are defined by analyzing the tsunami dynamics related to various plausible earthquake slip distributions along the Alaska-Aleutian megathrust. Potential worst-case tsunami sources include megathrust earthquakes in the Kodiak Island region. A hypothetical earthquake near Kodiak Island with maximum slip distributed at depths between 10 and 20 km (6.2-12.4 mi) with a splay fault dipping 60 degrees in the Albatross fault zone results in 'worst case' tsunami inundation for Akhiok, and an earthquake with maximum slip distributed at depths between 0 and 10 km (0-6.2 mi) with a splay fault dipping 30 degrees in the backstop splay zone is the 'worst case' scenario for the remaining communities. The maximum predicted overland flow depths in the communities ranges from 10 to 25 m (33 to 82 ft), and the currents in community harbors could be as strong as 8.4 m/sec (16.3 knots). Dangerous wave activity is expected to last for at least 12 hours after the hypothetical worst-case earthquakes. Results presented here are intended to provide guidance to local emergency management agencies for tsunami inundation assessment, evacuation planning, and public education to mitigate future tsunami damage. The complete report and digital data are available from the DGGS website: http://doi.org/10.14509/30760.

Tags: active fault, afognak bay, akhiok, akhiok bay, akhiok island, alitak bay, amee bay, amee island, amik island, barling bay, brookers lagoon, camp cove, chiniak, chiniak bay, chiniak lake, chiniak river, city of akhiok, city of port lions, coastal, coastal and river, cozy cove, cub island, dggs, earthquake, egg island, emergency preparedness, engineering, engineering geology, fault displacement, faulting, faults, flood, geologic, geologic hazards, geological process, geology, geotechnical, hazards, holocene, inundation, isthmus bay, kekur island, kempff bay, kizhuyak bay, land subsidence, lazy bay, little narrows, marine geology, marmot bay, middle island, midway bay, miller island, modeling, narrow strait, neotectonics, neva cove, north twin peak, nut island, old harbor, ouzinkie, pacific ocean, port lions, port wakefield, prokoda island, roslyn creek, round hill, sawmill lake, seismic hazards, settler cove, sheep island, sitkalidak passage, sitkalidak strait, subsidence, surface, svitlak island, tectonics, three sisters rocks, tides, topography, tsunami, twin creek, twin peaks, uzinki harbor
Organization: State of Alaska
Digitized faults of the Neotectonic map of Alaska (Plafker and others, 1994)

The Neotectonic Map of Alaska (Plafker and others, 1994) represents the first comprehensive compilation of tectonic faults and folds in Alaska and outlines the relative activity of post-Oligocene structures. Commonly referred to as "the Plafker map", this publication is out of print and was used as baseline information for the creation of the Quaternary fault and fold database for Alaska (Koehler and others, 2012).

Tags: active fault, earthquake, faulting, faults, folds, paleoseismology, quaternary
Organization: State of Alaska
Alaska Highway corridor electromagnetic and magnetic airborne geophysical survey data compilation

The Alaska Highway corridor electromagnetic and magnetic airborne geophysical survey is located in interior Alaska along the Alaska Highway corridor, from Delta Junction to the Canadian border. Frequency domain electromagnetic and magnetic data were collected with the RESOLVE system from August 27th, 2005 to January 16th, 2006. A total of 22,948.5 line kilometers were collected covering 8117.5 square kilometers. Line spacing was 400 meters (m). The data, as well as additional metadata, are available from the DGGS website: http://doi.org/10.14509/30462.

Tags: aeromagnetic, aeromagnetic data, aeromagnetic map, aeromagnetic survey, airborne geophysical survey, analytic signal, andrew lake, apparent resistivity data, apparent resistivity map, apparent resistivity survey, arrow creek, bear creek, beaver creek, berry creek, big john lake, big lake, billy creek, birch lake, bitters creek, black lake, cathedral bluffs, cathedral rapids, cemetery lake, charlieskin creek, charlieskin village, cheneathda hill, chief creek, chisana mountain, chisana river, city of delta junction, clearwater creek, clearwater lake, clearwater lakes, close lake, cockscomb creek, conductivity survey, craig lake, damundtali lake, deadman lake, delta river, desper creek, dog lake, donna lake, dot lake, dot lake village, dougherty creek, dry creek, electromagnetic data, electromagnetic survey, eliza lake, exploration, first vertical derivative, fish camp lake, fish creek, fish lake, forest lake, four mile lake, frequency domain electromagnetic data, gardiner creek, geologic, geology, geophysical map, geophysical survey, geophysics, geophysics search tag, george creek, gerstle river, glacier hill, glaman lake, goodpaster flats, granite creek, grass lake, gridded data, hajdukovich creek, healy lake, hidden lake, hillside lake, horn mountain, hudeuc lake, independent ridge, indian village, island lake, jan lake, jarvis creek, joe lake, johnson river, kalukna river, kalutna river, kathakne, kathakne village, knob ridge, ladue river, lake george, lake mansfield, leaf lake, line data, lisa lake, long lake, louie lake, macomb plateau, magnetic data, magnetic survey, magnetics, mansfield creek, mansfield village, mark creek, midway lake, mirror creek, monte lake, moon lake, moose creek, moose lake, moosehead lake, mount neuberger, nabesna river, nabesna village, northway, northway junction, northway village, nuziamundcho lake, open creek, remote sensing, resistivity, resistivity survey
Organization: State of Alaska
Field station locations and magnetic susceptibility data collected in 2021 for the Taylor Mountain project, Tanacross and Eagle quadrangles, Alaska

DGGS Raw Data File 2022-2, Field station locations and magnetic susceptibility data collected in 2021 for the Taylor Mountain project, Tanacross and Eagle quadrangles, Alaska, presents locations, field descriptions of rocks, and magnetic susceptibility measurements from rock outcrops and/or hand samples collected during 1:100,000-scale bedrock geologic mapping of 2600 square miles within the Tanacross and Eagle quadrangles. The field area for the Taylor Mountain project is within a 50-mile radius of Chicken, Alaska. The project area is of current and historic interest for potential mineral resource development, including quartz vein Au mineralization, placer Au deposits, granite-hosted tin mineralization, and intrusion-related Cu-Au deposits. Prospects in the area include Tweeden, Liliwig, and others. Much of the field area was mapped at 1:250,000 scale by the USGS in the 1960s. This project aims to produce more accurate and modern geologic maps and supporting datasets that will promote mineral resource exploration in eastern Interior Alaska. All files are available from the DGGS website: http://doi.org/10.14509/30837.

Tags: actinolite, amphibolite, analyses and sampling, andalusite, arenite, atwater creek, basalt, batholith, bedrock, bedrock geology, buckskin creek, bullion creek, calcite, carbonates, cedar creek, cement creek, chalcedony, chalcopyrite, chicken, chicken creek, chlorite, conglomerate, copper creek, diamond mountain, diopside, diorite, dolomite, eagle creek, epidote, exploration, feldspar, felsic, field notes, fortymile mining district, franklin creek, garnet, geologic, geology, gneiss, gold creek, granite, granodiorite, graphite, gravel, graywacke, greenschist, greenstone, hematite, hornblende, hornfels, igneous, ingle creek, iron, k-feldspar, kaolinite, kechumstuk, kechumstuk creek, kechumstuk mountain, labradorite, lilliwig creek, logging cabin creek, lost chicken creek, lost chicken hill, magnetic data, magnetic susceptibility, magnetics, magnetite, malachite, manganese, marble, metabasite, metamorphic, mica, mineral assessment, mineral exploration, mineral localities, mineral resources, mineralogy, minerals, moose creek, mosquito creek, muscovite, old man creek, orthogneiss, pegmatite, plagioclase, plutonic, porphyry, porphyry creek, potassium, pumice, pyrite, quartz, quartzite, resource assessment, resource information, resources, rhyolite, rocks, sample location, sandstone, schist, sericite, serpentinite, shale, silica, sillimanite, siltstone, skarn, stonehouse creek, strategic minerals, sulfides, surface, switch creek, talc, talus, taylor creek, taylor mountain, telegraph creek, tomato creek, tourmaline, tremolite, tuff, ultramafic, volcanic, willow creek, wilson creek
Organization: State of Alaska