AndreaBozzo/ceres-open-data-index huggingface dataset:
Tsunami inundation maps for Karluk and Larsen Bay, Kodiak Island, Alaska

Tsunami inundation maps for Karluk and Larsen Bay, Kodiak Island, Alaska, Report of Investigation 2022-2, identifies potential tsunami hazards for the Kodiak Island communities of Karluk and Larsen Bay, Alaska, by numerically modeling the extent of inundation from tsunami waves generated by hypothetical earthquakes. Credible worst-case 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 with a magnitude range of Mw9.0 to Mw9.3. We do not include impacts of subaerial or submarine landslide tsunami sources, as that is beyond the scope of this study. A hypothetical earthquake near Kodiak Island with maximum slip distributed between 10 and 40 km depth (6.2-24.85 mi) results in 'worst case' tsunami-inundation for both Karluk and Larsen Bay. The maximum predicted overland flow depth ranges from 5 to 10 m (17 to 33 ft) in Karluk and from 10 to 15 m (33 to 49 ft) in Larsen Bay. The currents can be as strong as 4 m/sec (7.8 knots) in Karluk River and 7 m/sec (13.6 knots) in Larsen Bay. Dangerous wave activity is expected to last for at least 12 hours after the hypothetical worst-case earthquakes. Tsunami inundation maps that accompany this report represent a combination of numerous tsunami scenarios to show the maximum composite extent of inundation from these models. The 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/10.14509/30892.

Tags: active fault, bathymetry, cape karluk, coastal, coastal and river, dggs, earthquake, earthquake related slope failure, emergency preparedness, engineering, engineering geology, environmental, fault displacement, faulting, faults, flood, geologic, geologic hazards, geological process, geotechnical, hazards, inundation, karluk, karluk lagoon, karluk river, kodiak island, land subsidence, landslide, larsen bay, marine, marine geology, modeling, neotectonics, seismic hazards, seismic interpretation, shelikof strait, subduction, subsidence, surface, tanglefoot bay, topography, uyak bay
Organization: State of Alaska
Geologic Map of the Siksikpuk River Area, Chandler Lake Quadrangle, Alaska

This dataset is comprised of a vector topographic base map illustrating the Chandler Lake B-4 and C-4 1:63,360 quadrangles.

Tags: anaktuvuk river, chandler river, geologic map, gunsight mountain, siksikpuk river, statemap project, tiglukpuk creek, topographic map, tuktu bluff
Organization: State of Alaska
Derivative map of potential geologic hazards in the Tanana B-1 Quadrangle, Alaska

This report provides detailed (1:63,360-scale) 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 to the north of the Tanana A-1 and A-2 Quadrangles. This report includes a derivative map of potential geologic hazards based on the resulting geologic maps, field investigations, and laboratory materials analyses.

Tags: avalanche, earthquake, engineering, faulting, floods, geologic, geomorphology, landslide, liquefaction, permafrost, surficial, yukon-tanana upland
Organization: State of Alaska
High-resolution lidar data for infrastructure corridors, Wiseman 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 ground-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, trans-alaska pipeline, wiseman quadrangle
Organization: State of Alaska
Interpretive geologic bedrock map of the Tanana A-1 and A-2 quadrangles, central Alaska

Public Data File 98-37B v. 1.1, Interpretive geologic bedrock map of the Tanana A-1 and A-2 quadrangles, central Alaska, provides detailed (1:63,360-scale) geologic mapping of portions of U.S. Geological Survey Tanana A-1 and A-2 quadrangles. The map area is part of the Yukon-Tanana Upland physiographic province, the Manley Hot Springs-Tofty mining districts, and adjacent to the Rampart mining district to the south. This geologic map data release includes detailed geologic, structural, stratigraphic, and geochronologic information. The complete report, geodatabase, and ESRI fonts and style files are available from the DGGS website: http://doi.org/10.14509/1864.

Tags: age dates, alabama creek, alameda creek, albian, allen creek, alpha creek, american creek, analyses and sampling, applegate creek, ar-ar, baker creek, baker lake, basalt, bean ridge, bedrock, bedrock geologic map, bedrock geology, blowback creek, boothby creek, boston creek, boulder creek, boulder ridge, brachiopods, buchia, cache creek, california creek, cambrian, camp creek, cerium, chicago creek, cipw norms, cold creek, colorado creek, conglomerate, conodonts, cooney creek, correlation, deadwood creek, deep creek, dolomite, dome, dome creek, doric creek, early cretaceous, early jurassic, early ordovician, economic geology, eureka, eureka creek, eureka dome, famennian, faults, folding, fossils, gastropods, gems, gems ncgmp09, geochemical surveys, geochemistry, geochronology, geological process, geology, glaciers, glenn creek, goff creek, gold, gold basin creek, granite, granite creek, graywacke, greenstone, hazards, hornfels, horse creek, hot springs mining district, hutlinana creek, hutlitakwa creek, igneous, isotopes, joe bush creek, joseph creek, k-ar, karshner creek, kentucky creek, killarney creek, late cretaceous, late devonian, late jurassic, limestone, major oxides, manley basin, manley hot springs, manley hot springs dome, mccloud ranch creek, mckinley creek, megafossils, mesozoic, metals, metamorphic, middle ordovician, mineralogy, minerals, minook creek, mississippian, modal analysis, monazite, mudstone, muscovite, new york creek, niobium, nugget creek, ohio creek, omega creek, ordovician, orum creek, paleocene, paleontology, paleozoic, patterson creek, pegmatite, permeability, permian, petroleum, pioneer creek, placer, plutonic, plutons, production data, proterozoic, quartz creek, quartzite, queen twin creek, rampart mining district, ready money creek, resource assessment, resources, rhode island creek, rocks, roughtop mountain, sandstone, sandusky creek, seattle creek, sedimentary, serpentine ridge, serpentinite, shale, siltstone, silurian, silver, silverbow creek, skookum creek, statemap project, stevens creek, sullivan creek, sunde creek, surface, surficial, talus, tamarack creek, tertiary, texas creek, thanksgiving creek, tofty, tolovana mining district, tonawanda creek, triassic, trilobites, ultramafic, unanimous creek, utah creek, volcanic, wackestone, washington creek, wolverine creek, yukon river
Organization: State of Alaska
Ruby electromagnetic and magnetic airborne geophysical survey data compilation

The Ruby electromagnetic and magnetic airborne geophysical survey is located in interior Alaska in the Ruby mining district, about 360 kilometers west of Fairbanks, Alaska. Frequency domain electromagnetic and magnetic data were collected with the DIGHEMV system from August to September 1997. A total of 3807 line kilometers were collected covering 1405.5 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 survey data were aquired and/or processed by Geoterrex-Dighem and WGM, 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/10.14509/30265.

Organization: State of Alaska
U-Pb Zircon ages from bedrock samples collected in the Tanacross D-1, and parts of the D-2, C-1, and C-2 quadrangles, Alaska

This Alaska Division of Geological & Geophysical Surveys (DGGS) Preliminary Interpretive Report presents U-Pb ages of zircons from 14 sedimentary, metamorphic, and igneous samples collected during 2017 and 2018 field investigations in the northeastern Tanacross Quadrangle, Alaska. The DGGS Northeast Tanacross project is a part of multi-year effort to investigate the geology and mineral-resource potential of the Yukon-Tanana Uplands region in collaboration with the U.S. Geological Survey. The purpose of the U-Pb isotopic study is to better understand the Devonian-to-Mississippian and Mesozoic-to-Early Paleogene episodes of magmatic and tectonic events within the Yukon-Tanana Uplands and the relationship of magmatism to the metallic mineral deposits. This area is characterized by the presence of two Late Devonian to Mississippian metamorphic assemblages--Lake George and Fortymile River. Both assemblages are composed of metasedimentary and metavolcanic rocks that have been intruded by Devonian to Eocene intrusive rocks of varying composition and texture. Paleozoic intrusive rocks are deformed and metamorphosed and include prevalent Late Devonian-Early Mississippian augen orthogneiss, herein called the Divide Mountain suite, that was emplaced into and deformed together with the Lake George assemblage. The Fortymile River assemblage is primarily cross cut by Mississippian to Permian intrusive rocks that are also pervasively deformed and metamorphosed. Following Jurassic to mid-Cretaceous regional metamorphism and deformation, all metamorphic rock packages were intruded by Mid- to Late-Cretaceous volcanic and plutonic rocks, some of which have known or suspected potential for gold together with silver, zinc, copper, and lead mineralization. Products included in this data release are: A summary of sample-collection methods, the laboratory report, analytical data tables, and associated metadata. All components of this data release are available on the DGGS website: http://doi.org/10.14509/30465.

Tags: analyses, analyses and sampling, analytical lab results, analytical results, bedrock, bedrock geology, chemistry, conglomerate, cretaceous, devonian, dewey creek, divide mountain, dude creek, fishhook bend, fortymile mining district, fortymile river assemblage, geochronology, geological process, geology, gold bar creek, granite, granodiorite, igneous, igneous rocks, isotopes, jurassic, lake george assemblage, liberty creek, mccord creek, mcelfish creek, metamorphic, metamorphic rocks, metasedimentary rocks, metavolcanic rocks, methods, mineral assessment, mineral composition, mineral development, mineral exploration, mineral resources, mineralogy, minerals, mississippian, permian, plutonic, plutons, rock units, rocks, sedimentary rocks, sixtymile river, statemap project, tectonics, triassic, u-pb, yukon-tanana upland, zircon
Organization: State of Alaska
Shoreline change at Alaska coastal communities, Brevig Mission, 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, brevig mission, 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
High-resolution lidar data for infrastructure corridors, Livengood 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 ground-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, livengood quadrangle, point cloud data, proposed natural gas pipeline, remote sensing, state of, trans-alaska pipeline
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. This digital surface model represents coefficient of variation of the above ground height of vegetation returns.

Tags: alaska, alaska highway corridor, alaska pipeline, coefficient variation, gasline, geomorphology, lidar, proposed natural gas pipeline, raster image, remote sensing, state of, trans-alaska pipeline, valdez quadrangle
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. 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, trans-alaska pipeline, tyonek quadrangle
Organization: State of Alaska
Updated tsunami inundation maps for Seward and northern Resurrection Bay, Alaska

Updated tsunami inundation maps for Seward and northern Resurrection Bay, Alaska, Report of Investigation 2022-3, updates the previous tsunami hazard assessment for Seward, Alaska by numerically modeling the extent of inundation from tsunami waves generated by hypothetical earthquakes. We define an updated suite of earthquakes-including Tohoku-style megathrust ruptures and complex splay faulting in the upper North American plate from Kodiak Island and Prince William Sound-to calculate vertical seafloor displacements and model resulting tsunami dynamics in Resurrection Bay. A hypothetical earthquake with maximum slip distributed between depths of 0 and 18 km (11.2 mi) results in 'worst case' tsunami inundation for Seward. The maximum predicted overland flow depths in the community range from 10 to 25 m (33 to 82 ft), and the currents in community harbors could be as strong as 25 m/sec (48.6 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. This report updates the previous assessment of tsunami hazard for Seward published in 2010. The complete report and digital data are available from the DGGS website: http://doi.org/10.14509/30893.

Tags: active fault, bathymetry, bear creek, blying sound, box canyon creek, caines head, clear creek, coastal, coastal and river, derby cove, dggs, earthquake, earthquake related slope failure, emergency preparedness, engineering, engineering geology, fault displacement, faulting, faults, first lake, flood, fourth of july creek, geologic, geologic hazards, geological process, geology, geomorphology, geotechnical, hat island, hazards, humpy cove, inundation, land subsidence, landslide, likes creek, lost creek, lowell creek, lowell point, marine, marine geology, modeling, neotectonics, outreach, preachers pond, resurrection bay, resurrection river, salmon creek, sawmill creek, scheffler creek, second lake, seismic hazards, seismic interpretation, seismology, seward, slope instability, spring creek, spruce creek, subsidence, subsurface, surface, surface fault rupture, surficial, surficial geology, tectonics, thumb cove, tonsina creek, tonsina point, tsunami
Organization: State of Alaska
Historically active volcanoes of Alaska

This data lists the historically active volcanoes of Alaska and the year of the last major eruptive event. The volcanoes listed meet at least one of the following criteria since 1700 CE: 1) Documented, unquestioned eruption OR 2) A strongly suspected eruption, often an eruption documented in a historical account with very little information. Current geologic knowledge must not contradict the eruption account, OR 3) Persistent (usually on the order of decades, but certainly longer than several months) fumaroles, with temperatures (where measured) within approximately 10 degrees C of the boiling point, OR 4) Significant, measured, volcanic-related, non-eruptive deformation, OR 5) Documented earthquake swarm with strongly suspected volcanic cause. All files can be downloaded free of charge from the DGGS website http://doi.org/10.14509/3042.

Tags: active volcanoes, alaska, alaska peninsula, alaska statewide maps, aleutian arc, aleutian islands, coastal and river, coastal and river hazards, geologic hazards, geology, hazards, historic eruption, state of, volcanic, volcanic eruption, volcano hazards, volcanoes, volcanology
Organization: State of Alaska
Photogrammetry-derived orthoimagery and elevation for Kotlik, Alaska, collected July 9-10, 2021

The State of Alaska Division of Geological & Geophysical Surveys (DGGS) collected low-altitude aerial images from an unmanned aerial vehicle (UAV) on July 9-10, 2021 and used Structure-from-Motion (SfM) photogrammetry to produce a digital surface model (DSM) and orthoimage of Kotlik. The orthoimagery 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 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/10.14509/30789).

Tags: apoon pass, coastal and river, dggs, digital elevation model, digital surface model (dsm), emergency preparedness, engineering, engineering geology, environmental, erosion, flood, geologic, geologic hazards, geological process, geology, geomorphology, geophysics, geotechnical, hazards, hydrology, kotlik, kotlik river, kulmogon slough, little kotlik river, methods, raster image, remote sensing, surface, surface water, surficial, surficial geology, topography, water, web service
Organization: State of Alaska