AndreaBozzo/ceres-open-data-index huggingface dataset:
40Ar/39Ar data, Alaska Highway corridor from Delta Junction to Canada border, parts of Mount Hayes, Tanacross, and Nabesna quadrangles, Alaska

40Ar/39Ar analyses of igneous rocks from the Alaska Highway corridor between Delta Junction and the Canada border show a range of Cretaceous ages from about 68 Ma to about 112 Ma. The 25 samples fall into two broad age groups. The younger group ranges from about 68 Ma to 73 Ma; the older group ranges from a minimum age of about 84 Ma to about 103 Ma. One sample, a mafic dike, yielded an older age of about 112 Ma.

Tags: 40ar/39ar, age dates, alaska highway corridor, analyses and sampling, analytical lab results, analytical results, ar-ar, bedrock, bedrock geology, cretaceous, geochronology, geology, lab methods, mount hayes quadrangle, nabesna quadrangle, sample location, tanacross quadrangle, yukon-tanana terrane, yukon-tanana upland
Organization: State of Alaska
Analyses of historic U.S. Bureau of Mines samples for geochemical trace-element and rare-earth-element data from tin occurrences associated with the Ohio Creek pluton, south-central Alaska

This report and digital data release presents 82 new rock geochemical analyses on historic U.S. Bureau of Mines (USBM) samples. These samples were originally collected by the USBM as part of their critical and strategic minerals project, which investigated tin occurrences associated with the Ohio Creek pluton, south-central Alaska. Historic USBM sample materials were retrieved by DGGS from the DGGS Geologic Materials Center (GMC), where the USBM samples were transferred as part of the federally funded Minerals Data and Information Rescue in Alaska (MDIRA) program in the late 1990s and early 2000s. The text and analytical data and tables associated with this report are being released in digital format as PDF files and .csv files. We provide analytical data, detection limits and, when available, the method documentation provided to us by the lab. We also provide the sample location in geographic coordinates, the sample material cited by the originating literature, a reference to the originating report, and the type of sample material that was obtained from the archive and sent to the lab.

Tags: analyses and sampling, base metals, critical minerals, economic geology, economic study, exploration, geochemical data, geochemical surveys, geochemistry, geology, heavy metals, mineral assessment, mineral deposit, mineral development, mineral localities, mineral prospect, mineral resources, minerals, non-metals, platinum group elements, precious metals, rare earth elements, ree, resource assessment, resource information, resources, strategic and critical minerals assessment project, strategic minerals, trace elements, trace geochemical, trace metals
Organization: State of Alaska
Tsunami inundation maps for Yakutat, Alaska

In this report we evaluate potential tsunami hazards for the southeastern Alaska community of Yakutat and numerically model the extent of inundation from tsunami waves generated by tectonic and landslide sources. We use numerical modeling of historical tsunami events at Yakutat, such as the tsunami triggered by the 1964 Great Alaska Earthquake, and the tsunami waves generated by the recent 2011 Tohoku earthquake, to verify the tsunami model. Potential hypothetical tsunami sources include variations of the extended 1964 rupture, megathrust earthquakes in the Prince William Sound and Alaska Peninsula regions, and earthquakes in the Yakataga-Yakutat area, including the historical September 10, 1899, earthquake. Local underwater landslide events in Monti Bay are also considered as possible tsunamigenic scenarios. Numerical modeling results, combined with historical observations in the region, are intended to provide guidance to local emergency management in tsunami hazard assessment, evacuation planning, and public education for the reduction of future tsunami hazard.

Tags: tsunami
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. This digital surface model (mean_DSM) represents mean above-ground height of vegetation returns.

Tags: alaska, alaska highway corridor, alaska pipeline, digital surface model (dsm), gasline, geomorphology, lidar, mean vegetation elevation (dsm), mount hayes quadrangle, proposed natural gas pipeline, raster image, remote sensing, state of, trans-alaska pipeline, vegetation metric
Organization: State of Alaska
Line, grid, and vector data, and maps for the airborne geophysical survey data of the Styx River Survey, parts of the Lime Hills and Tyonek quadrangles, southcentral Alaska

This digital publication, GPR 2008-3, contains data produced from airborne geophysical surveys conducted in 2007 and 2008 for the Styx River Survey area, southcentral Alaska. Aeromagnetic and electromagnetic data were acquired for about 715 sq miles. Data provided in GPR 2008-3 include (1) raw and processed linedata in Geosoft ASCII XYZ files, (2) gridded files of magnetic data, a calculated vertical magnetic gradient (first vertical derivative), apparent resistivity data, and a digital elevation model, (3) flight lines in vector format, and maps of the data in PDF format. Data are described in more detail in the 'gpr2008_003_readme.pdf' and 'Styx-Linedata.txt' files included on the DVD.

Tags: aeromagnetic data, aeromagnetic map, airborne geophysical survey, alaska, apparent resistivity data, apparent resistivity map, dighem v em system, digital elevation model, electromagnetic data, first vertical derivative, geophysics, hem survey, lime hills quadrangle, mcgrath mining district, mcgrath quadrangle, state of, tyonek quadrangle, yentna mining district
Organization: State of Alaska
High-resolution lidar data for infrastructure corridors, Bettles 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, bettles quadrangle, gasline, geomorphology, highest hit digital surface model (dsm), 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, Anchorage 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, anchorage quadrangle, gasline, geomorphology, highest hit digital surface model (dsm), 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, Nabesna 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, data normalized digital surface model (ndsm), gasline, geomorphology, lidar, nabesna quadrangle, proposed natural gas pipeline, raster image, remote sensing, state of, trans-alaska pipeline
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. This digital surface model represents coefficient of variation of the above ground height of vegetation returns.

Tags: alaska, alaska highway corridor, alaska pipeline, chandalar quadrangle, coefficient variation, 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, 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.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, topographic map, trans-alaska pipeline, tyonek quadrangle
Organization: State of Alaska
Photogrammetric digital surface models and orthoimagery for the continuous coastline, Wales to Platinum, Alaska, segment H: Chevak to Newtok

Aerial photographs of the coastline from Chevak to Newtok were collected on May 6, 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. 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: chevak, coastal, coastal and river, engineering, engineering geology, environmental, geologic hazards, geology, geomorphology, hazards, marine geology, methods, newtok, raster image, surficial
Organization: State of Alaska
Photogrammetry-derived orthoimagery and elevation data for Golovin, Alaska, collected August 28, 2019

The Alaska Division of Geological & Geophysical Surveys (DGGS) collected low-altitude aerial images from an unmanned aerial vehicle (UAV) on August 28, 2019, and used Structure-from-Motion (SfM) photogrammetry to produce a digital surface model (DSM) and orthoimagery of Golovin. The orthoimage and elevation data were collected to assess 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 to process photogrammetry data. These products are released as a Raw Data File with an open end-user license. 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/10.14509/30857).

Tags: aerial, aerial geology, aerial photography, coastal, coastal and river, coastal erosion, dggs, digital surface model (dsm), elevation, emergency preparedness, engineering, engineering geology, environmental, erosion, flood, floodplain, geologic, geologic hazards, geological process, geology, geomorphology, geotechnical, golovin, golovnin sound, hazards, orthoimagery, photogrammetry, raster image, remote sensing, sea level changes, seward peninsula, shelf, shoreface, storm surge, structure from motion, surface, surficial, surficial geology, tides, topography, unconsolidated deposits, water, web service
Organization: State of Alaska
Preliminary database of Quaternary vents in Alaska

The Alaska Volcano Observatory (AVO) uses an informal set of names for about 140 'volcanoes.' Some names refer to large, complex volcanic centers, while others indicate only a specific cone. This publication expands the list of 140 named volcanoes to include all volcanic vents where magma has reached the surface over the past 2.6 million years. This database of all known (published, or unpublished with permission) Quaternary volcanic vents was developed to better describe the nature and character of Quaternary volcanism in Alaska and specifically to aid in the discussion of spatial and temporal patterns of Alaska volcanism. This list is a preliminary starting point, and we hope that it is updated and expanded by the addition of newly discovered subaerial and submarine vents. We invite the community of volcanologists who study Alaska volcanism to help us develop this database by adding new vents as they are discovered and by improving the geologic descriptions of known vents as new information becomes available.

Tags: adak quadrangle, alaska peninsula, aleutian islands, amukta quadrangle, atka quadrangle, baird inlet quadrangle, bendeleben quadrangle, candle quadrangle, chignik quadrangle, cold bay quadrangle, cook inlet, craig quadrangle, fairbanks quadrangle, false pass quadrangle, gareloi island quadrangle, goodnews bay quadrangle, gulkana quadrangle, hazards, healy quadrangle, holocene, hooper bay quadrangle, iliamna quadrangle, karluk quadrangle, kenai quadrangle, ketchikan quadrangle, kiska quadrangle, kotzebue quadrangle, kwiguk quadrangle, lake clark quadrangle, marshall quadrangle, mccarthy quadrangle, mount katmai quadrangle, nabesna quadrangle, naknek quadrangle, nunivak island quadrangle, petersburg quadrangle, pleistocene, port moller quadrangle, pribilof islands quadrangle, rat islands quadrangle, saint lawrence quadrangle, saint michael quadrangle, samalga island quadrangle, seguam quadrangle, selawik quadrangle, seward peninsula, sitka quadrangle, southeast alaska, stepovak bay quadrangle, sutwik island quadrangle, tanacross quadrangle, tyonek quadrangle, ugashik quadrangle, umnak quadrangle, unalakleet quadrangle, unalaska quadrangle, unimak quadrangle, valdez quadrangle, volcanic eruption, volcanoes, volcanology, wrangell mountains
Organization: State of Alaska
Photogrammetric digital surface models and mosaiced orthoimagery for Barter Island, Alaska

In 2017, the National Oceanic & Atmospheric Administration (NOAA), National Geodetic Survey, Remote Sensing Division (RSD) performed extensive aerial collection of imagery along Alaska's northeastern coastline in support of NOAA's Coastal Mapping Program. Data collected under this initiative are typically used to improve maritime chart products, serve as a baseline for shoreline change monitoring, and update the national shoreline database. This report summarizes photogrammetric digital surface models (DSMs) and an orthomosaic derived from this image dataset using Structure from Motion (SfM) techniques for the Barter Island area. Aerial images used to derive products described in this report were collected on July 19, 2017. Ground control points (GCPs) and checkpoints used for vertical correction and validation of this data were collected with Global Navigation Satellite System (GNSS) surveys by the U.S. Geological Survey (USGS) on September 4, 2014, and September 18, 2016. This data collection is being released as a Raw Data File with an open end-user license and includes the following for the Barter Island area: (1) orthomosaic raster, (2) DSM raster, (3) smoothed DSM raster, and (4) DSM hillshade. All files can be downloaded free of charge from the Alaska Division of Geological & Geophysical Surveys website (http://doi.org/10.14509/30456).

Tags: aerial, barter island quadrangle, coastal, digital surface model (dsm), elevation, engineering geology, hazards, lidar, orthoimagery, remote sensing, structure from motion
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. Hillshade (shaded relief) images, produced from bare-earth DEMs provide a visual representation of topographic relief.

Tags: alaska, alaska highway corridor, alaska pipeline, gasline, geomorphology, hillshade image, lidar, 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 Haines, Southcentral Alaska, December 8-12, 2020

The Alaska Division of Geological & Geophysical Surveys (DGGS) used aerial lidar to produce a digital terrain model (DTM), surface model (DSM), and intensity image for an area in and around the community of Haines, Alaska, as part of emergency operations in response to the December 2, 2020, landslide that claimed the lives of two residents. Airborne data were collected December 8-12, 2020, and subsequently processed in Terrasolid and ArcGIS. Ground control were collected December 15-16, by the DMLW. This data collection is 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/10.14509/30595).

Tags: chilkat inlet, chilkat river, chilkat state park, chilkoot inlet, chilkoot lake, chilkoot lake state recreation area, dayehas creek, digital elevation model, digital surface model (dsm), digital terrain model, engineering, engineering geology, ferebee river, geologic, geology, geomorphology, geotechnical, haines, johnson creek, landslide, landslide susceptibility, letnikof cove, lidar, lidar intensity image, lily lake, low point, lynn canal, mink creek, nahku portage, nukdik point, point cloud data, remote sensing, shakuseyi creek, shiyi bay, slides, slope instability, surficial, taiya inlet, tanani, tlegu beach, topography, yindastuki
Organization: State of Alaska
Kasatochi Island 2009 topography

The 2008 eruption of Kasatochi volcano caused major topographic changes to Kasatochi Island, making all prior topographic maps and data obsolete. The topographic map and data presented here are derived from stereoscopic satellite images acquired on April 18, 2009. Subsequent topographic data has not been acquired, although there has been substantial topographic modification to the island, particularly to the shoreline, since these data were acquired.

Tags: aleutian islands, atka quadrangle, digital elevation model, geodatabase, geology, geomorphology, holocene, kasatochi, satellite, shaded relief, surface, topography, volcanoes
Organization: State of Alaska
Photogrammetric digital surface models and orthoimagery for the continuous coastline, Wales to Platinum, Alaska, segment L: Kipnuk to Kongiganak

Aerial photographs of the coastline from Kipnuk to Kongiganak were collected on August 11, 2015 - August 12, 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 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, kipnuk, kongiganak, marine geology, methods, raster image, surficial
Organization: State of Alaska