cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.18739/a28g8fj8x
title: Doctoral Dissertation Research: Mapping Community Exposure to Coastal Climate Hazards in the Arctic: A Case Study in Alaska's North Slope

description: This research investigates community exposure to coastal climate hazards in Alaska's North Slope and incorporates community assessment of the potential effects on loss of land, infrastructure, and other assets. This analysis will inform response strategies and planning by developing new methods of hazard assessment that can support community resilience in the North Slope and potentially serve as a model for advancing assessment and planning in other rural and urban communities. This research will expand traditional assessments of financial exposure to also include non-material factors such as values and priorities of diverse social groups within a community including a diverse set of stakeholders, ranging from multinational oil companies to individual subsistence hunters. This study surveys community views of asset importance and integrates results with a geophysical hazard data model for a coproduced community exposure map of the North Slope coast. This research will contribute to understanding the human and social dimensions of climate change impacts, including how social, economic, political, and cultural factors shape vulnerabilities and condition response strategies. Methods and findings could enhance nation-wide efforts in the United States to map community exposure to coastal climate hazards by demonstrating methods for, and the importance of systematically incorporating non-market values in exposure analysis. The objectives of the proposed research include adapting the U.S. Geological Survey's (USGS) coastal vulnerability index (CVI) to the Arctic context, and integrating results with formal asset databases and a spatial community landscape value model while working with affected communities during the process to coproduce exposure maps. Specifically, working with North Slope Alaskan communities the study will incorporate wind fetch (i.e., the open water distance over which wind can generate near shore waves, determined by sea ice extent) into the CVI and get community feedback on the results. In addition to community input on the CVI maps, coproducing the exposure maps includes the community assigning values to traditional land use places using existing spatial datasets and mapping and investigating specific sites threatened by coastal hazards with the aim to learn why exposed assets threaten the community.
DOI: 10.18739/a24t6f461
title: Summer Time Suspended Sediment Transport in Lake Linné, Svalbard, 2006

description: Conclusions: Several forces affect summer time suspended sediment transport within Lake Linné. Most notably, surface winds and associated Ekman transport drive currents easterly or westerly on a daily basis. Melting of the delta icing over the course of the summer allows a progressively larger channel to flow out of the eastern side of the inlet delta. Depth distribution of sediment plumes is predictably influenced by density contrasts between the inlet water and the lake water. During times of low flow, when the glacial melt water is most concentrated, underflows tend to occur. Conversely, during wetter periods, when the glacial sediment is diluted by surface run off, overflows may be more common. The effects of the secular eastward shift of suspended sediment may provide a robust paleo-indicator for summer climate if detected in the paleo record. Further work must be done to better understand the effects of daily changes in sediment distribution throughout the summer. Most notably, detailed observations of the inlet delta throughout the summer will allow for more confidence regarding the influence of the icing in biasing the direction of the inlet plume. Additionally, monitoring sediment plumes in along the long axis of the lake may allow for better understanding of where sediment travels within the lake. Due to the importance of summertime climate in the Arctic’s energy budget and our ability to directly observe sedimentation at this time of the year, a better understanding of summer sedimentation controls will provide the most useful interpretation of Linné’s paleo record.
DOI: 10.18739/a2125qb3p
title: Greenland Summit Ice Cores

description: From 1989 to 1994, the U.S. and European scientific communities supported a bold undertaking to acquire an extensive paleoclimate record for the Northern Hemisphere. These efforts, termed the Greenland Ice Core Project (GRIP) and Greenland Ice Sheet Project Two (GISP2), acquired deep ice cores from sites on and near the Greenland summit. The GISP2 (US) site was located at 72 degrees 36 minutes N, 38 degrees 30 minutes W. The GRIP (European) site was located at 72 degrees 35 minutes N, 37 degrees 38 minutes W. A wide range of environmental and physical parameters were recorded from the cores. The data types are listed below: - Air Mass Trajectories (GISP2) - Chemistry (GISP2, GRIP) - Climatological Data (GISP2) - Cosmogenic Isotopes (GISP2) - Dust (GISP2) - Electrical Conductivity (GISP2, GRIP) - Gas Concentrations in Air Bubbles (GISP2, GRIP) - Physical Properties and Ice Core Stratigraphy (GISP2, GRIP) - Stable Isotopes (GISP2, GRIP) - Time scales (GISP2, GRIP) The GRIP and GISP2 data presented on this site were acquired as a part of a multi-institutional effort involving the GISP2 Science Management Office (SMO) at the University of New Hampshire, the National Snow and Ice Data Center (NSIDC) at the University of Colorado, the International Ice Core Data Cooperative (IICDC) at the Institute of Arctic and Alpine Research (INSTAAR), and the World Data Center (WDC) for Paleoclimatology, Boulder at the National Oceanic and Atmospheric Administration (NOAA) National Geophysical Data Center (NGDC). Documentation and data format were carried out jointly by NSIDC and the WDC for Paleoclimatology. All GISP2 and GRIP data are jointly archived at the Arctic System Science (ARCSS) data archive at NCAR and at the WDC for Paleoclimatology, NOAA-NGDC. The datafiles were extracted from a CD and are now in a single tar.gz file available for download. See the readme for important corrections to the data.
DOI: 10.18739/a2w950p82
title: Holocene fluctuations of Linné Glacier: constraining its pre-Little Ice Age history using cosmogenic radionuclide exposure dating, 2013

description: As is observable today, Arctic glaciers are especially sensitive to climate change. By studying the past fluctuations in glacier extent, we can determine the cause of these fluctuations due to climatic shifts in temperature, albedo, and green house gas accumulation. Here, we investigate the fluctuations of Linnebreen, a high Arctic glacier located in southwestern Spitsbergen, Svalbard, throughout the Holocene in order to investigate its reaction to the cooling temperatures seen in the Holocene. We use cosmogenic 10Be surface exposure ages of moraine boulders deposited on moraine remnants found just outside of the Little Ice Age (LIA) moraine. We use this same technique on boulders found in Linnedalen beyond the extent of the LIA moraine and upstream of Linnévatnet to investigate when Linnebreen retreated to the LIA extent in the early Holocene. The approximate age for the Neoglacial moraine remnant is 1.6+/- 0.2 ka. The samples taken from glacial erratics in Linnedalen place the retreating glacier outside the LIA moraine at 12.4 +/- 0.4 ka. Rather than seeing a steady advance of this high Arctic glacier after ice-free conditions in the early to middle Holocene that ended in the LIA maximum, we see an early maximum that ended at ~1.6 ka followed by a readvance during the LIA, which may be observed at several other Svalbard glaciers. This late Holocene, pre-LIA ice advance and retreat suggests a more complicated response of Svalbard glaciers to the gradual Arctic cooling of the Holocene and may be related to a centennial-scale reduction in sea ice from northward incursion of Atlantic waters around Svalbard. Such a response would imply that transient warming overwhelmed increased precipitation from reduced sea ice and highlights the sensitivity of Svalbard’s cryosphere to reductions in sea ice.
DOI: 10.18739/a2h12v858
title: Barrow Area Information Database (BAID) Research Sites and Ancillary Geospatial Layers, North Slope, Alaska, 2000-2019

description: The Barrow Area Information Database (BAID) data collection is comprised of geospatial data for the research hubs of Utqiaġvik (formerly known as Barrow), Atqasuk and Ivotuk on Alaska's North Slope. Over 18,000 research plots and instrument locations are included in the BAID research sites database. Updates to the database of observation sites are ongoing through field mapping of new research locations and extant sampling sites dating back to the 1940s. Ancillary data layers included with this update include boardwalks, trails, boat launches, snow fences, road centerlines and place names for major features around Utqiaġvik. These geospatial datasets serve as an update to previously published information. Information is compiled to support science planning and communication with the local communities of Utqiaġvik and Atqusuk, as well as the North Slope Borough. The distribution of previously mapped research sites and infrastructure, which are tracked in BAID, are often considered during the planning phase for new projects.
DOI: 10.18739/a2c824g20
title: Barrow Area Remote Sensing - BAID Power Poles

description: This data set contains power pole layer data from the Barrow Area Information Database (BAID) from the villages of Barrow and Atqasuk on Alaska's North Slope. Files are in GIS shapefile format and are contained in a single ZIP file.
DOI: 10.18739/a27m04190
title: Barrow Area Remote Sensing - Brw Be Board Walk

description: This data set contains data from board walks constructed at the site of the Barrow Biocomplexity Experiment 2006. Data were derived using the Barrow Arctic Science Consortium Differential GPS System (BASC DGPS) and exported as GIS shape files. These shape files are contained in a single ZIP file.
DOI: 10.18739/a23t9d76s
title: Barrow Area Remote Sensing - Brw Be Catchment

description: This dataset contains Barrow Area Remote Sensing - Brw Be Catchment data. Modeled catchment area and sub-catchments within the Barrow Biocomplexity study area. Data were derived using the Digital Elevation Model derived for the study area from airborne Light Detection and Ranging (LiDAR) data in the Arc Hydro extension to ArgGIS 9.2. Catchments areas are the modeled partition between drainage lines outlined for the biocomplexity area. GIS shape files are contained in a single ZIP file.
DOI: 10.18739/a2028pf3f
title: Barrow Area Remote Sensing - Brw Be Dikes

description: This data set contains data from dikes constructed at the site of the Barrow Biocomplexity project, Spring 2007. Data were derived using the Barrow Arctic Science Consortium Differential GPS System (BASC DGPS) and exported as a shape file. These shape files are contained in a single ZIP file.
DOI: 10.18739/a2qj7803m
title: Barrow Area Remote Sensing - Tramlines

description: This data set contains data from tramlines constructed at the Barrow Biocomplexity Experiment 2006. Data were derived using the Barrow Arctic Science Consortium Differential GPS System (BASC DGPS) and exported as GIS shape files. These shape files are contained in a single ZIP file.
DOI: 10.18739/a2v97zs8f
title: Barrow Area Remote Sensing - Brw Be Matted Trail

description: This data set contains data from a matted trail constructed for the Barrow Biocomplexity Experiment 2006. Data were derived using the Barrow Arctic Science Consortium Differential GPS System (BASC DGPS) and exported as a shape file. These shape files are contained in a single ZIP file.
DOI: 10.18739/a2ks6j58c
title: Exploratory Drilling Sites in the Chukchi and Beaufort Seas Offshore Alaska

description: This dataset consists of a map of the exploratory oil drilling sites in the Chuckchi and Beaufort Seas offshore Alaska, along with a PDF file supplying information on each of the sites. API numbers, the operator, prospect name, sale number, lat/lon, spud and end dates, water depth and drilling unit information are included for each of the sites. This dataset is part of the Pacific Marine Arctic Regional Synthesis (PacMARS) Project.
DOI: 10.18739/a2g15tc51
title: Pan-Arctic regional data framework

description: Pan-Arctic list of regional names and codes, forming a region-year framework for Arctic human dimensions data for possible connection to Equal-Area Scalable Earth (EASE) grid physical data as described in Hamilton & Lammers (2011) Polar Geography DOI: 10.1080/1088937X.2011.591962
DOI: 10.18739/a2bc3sz46
title: Shapefiles for BSSN Website Map

description: This data set was edited from the data collected by the Alaska Department of Natural Resources and the ESRI Russia dataset. The files were clipped to show only the three Alaskan and three Russian communities. Original shapefiles were obtained through the Alaska State Geo-Spatial Data Clearinghouse (http://www.asgdc.state.ak.us) and Geocommunity (http://www.geocomm.com). The community spatial data and base Alaska and Russian maps were obtained and clipped for the use of the Berin Sea Sub-Network (BSSN) map.
DOI: 10.18739/a26m3351b
title: Study Area in Nenets Autonomous Okrug, Russian Federation [Yamin-Pasternak]

description: This dataset consists of shapefile format files for mapserver that provide information on the study area in Nenets Autonomous Okrug, Russia. Data on the environment and activities of the indigenous people are collected via satellite imagery, published sources, and surveys given to the people and are used to populate a GIS database. This dataset is part of the Pacific Marine Arctic Regional Synthesis (PacMARS) Project.
DOI: 10.18739/a22v2cb7k
title: Subsistence Areas in Nenets Autonomous Okrug, Russian Federation [Yamin-Pasternak]

description: This dataset consists of shapefile format files for mapserver that provide information on the subsistence areas of the indigenous peoples in Nenets Autonomous Okrug, Russia. Data on the environment and activities of the indigenous people are collected via satellite imagery, published sources, and surveys given to the people and are used to populate a GIS database. This dataset is part of the Pacific Marine Arctic Regional Synthesis (PacMARS) Project.
DOI: 10.18739/a2tb0xw78
title: Barrow Area Remote Sensing - Brw Be Drainage

description: Modeled drainage points within the Barrow Biocomplexity study area. Data were derived using the Digital Elevation Model (DEM) derived for the study area from airborne Light Detection and Ranging (LiDAR) data in the Arc Hydro extension to ArgGIS 9.2. Points indicate probable interception between two or more drainage lines within the study area prior to the initiation of the flooding and draining experiment.
DOI: 10.18739/a2pk0733x
title: Barrow Area Remote Sensing - Brw Be Treatment Areas

description: Modeled treatment areas within the Barrow Biocomplexity study area. Data were derived using the Digital Elevation Model derived for the study area from airborne Light Detection and Ranging (LiDAR) data in the Arc Hydro extension to ArgGIS 9.2. Treatment areas were defined from the catchment area of the thaw lake basin and the location of the dikes that were installed to separate the basin in to the different treatment areas. The northern treatment area became the flooded treatment, the central area the drained treatment area and the southern treatment the control area.
DOI: 10.18739/a2js9h90q
title: Arctic Nearshore Impact Monitoring in the Development Area (ANIMIDA) 1999 - 2002 and continuation of Arctic Nearshore Impact Monitoring in the Development Area (cAnimida) 2004 - 2007 data, Beaufort Sea, Alaska

description: This dataset contains information specifically for the Arctic Nearshore Impact Monitoring in the Development Area (ANIMIDA 1999 - 2002) and continuation of Arctic Nearshore Impact Monitoring in the Development Area (cANIMIDA 2004 - 2007) programs in the Alaskan Beaufort Sea. Minerals Management Service (MMS) initiated these studies to characterize the pre and post construction environmental impacts surrounding the offshore oil development and production activities in this area. This dataset is part of the Pacific Marine Arctic Regional Synthesis (PacMARS) Project. The data encompasses the following areas from 1999 thru 2007: * Hydrocarbon and Metal characterization of sediments. Sediments were collected and analyzed for a variety of parameters including Organics (polycyclic aromatic hydrocarbons (PAH), Saturated hydrocarbons (SHC), and S/T), Grain size, total organic carbon (TOC), trace metals and radionuclides (Pb210 and Cs137) * Sources, Concentrations and dispersion pathways for suspended sediment * Partitioning of potential contaminants between dissolved and particulate phases. These two tasks focused on suspended sediments and the dissolved / particulates in the water column in fresh and salt water and ice cores. The study analyzed for both chemical and physical parameters that included in situ conductivity-temperature-depth (CTD) measurements, particulate organic carbon (POC), dissolved organic carbon (DOC), trace and major metals. * Biomonitoring and bioaccumulation of contaminants in biota. The biota studied included amphipods, isopods, clams, fish, mussels and semipermeable membrane device (SPMD). These tissues were analyzed for metals, PAH, PAH exposure biomarkers (cytochrome P450 1A (CYP1a)) and bile fluorescent aromatic compounds (FAC). * Monitoring the Boulder patch area. This area of the program studied the benthic community and kelp biomass. Parameters of interest included: photosynthetically active radiation (PAR), light attenuation, Total Suspended Solids (TSS), kelp productivity and biomass and benthic faunal diversity. Additional analysis for water column chlorophyll, nutrients and CTD parameters were also conducted.
DOI: 10.18739/a29c6s25v
title: Paleoceanography and Sea Level history of the Bering and Chukchi Seas

description: Sea ice extent in the Arctic Ocean and its marginal seas is a key component of the coupled ice-atmosphere-ocean system and a driver of meridional ocean circulation, yet information about sea ice conditions in the past is very limited. The goals of this proposed study are two-fold. The first is to use archived surface sediments collected from the Bering and Chukchi Seas to develop quantitative measures of seasonal sea-ice extent and duration. This will be achieved through analysis of diatom morphology, assemblages and the IP25 biomarker of ice-associated diatoms from a suite of over 200 surface sediments collected from the Bering and Chukchi Seas spanning 0-12 months/year of sea ice. The second goal is to apply sea ice reconstructions using the calibrated diatom assemblage methods and IP25 analysis to a suite of six archived cores that form a latitudinal transect through the Bering and Chukchi Seas. The PIs aim to quantitatively reconstruct Late Pleistocene and Holocene seasonal sea ice extent at centennial-scale resolution. These efforts will be corroborated with independent biomarker-based evaluation of surface water temperatures. The successful completion of the project will result in a rich, multi-proxy data set that will be used to evaluate the sea ice and sea surface temperature history of the Bering Strait region. The results of this project will be relevant to global climate modelers as well as paleoecologists, paleoclimatologists, and paleoceanographers interested in regional- to global-scale forcing issues. The broader Arctic science community would benefit from the proxy development proposed. The project would support two full-time graduate students and a summer undergraduate research assistant in each year of the project. The PIs and students will also continue to develop curriculum modules designed to introduce 5th through 8th grade students to the topics of global and Arctic climate, marine sedimentation, ecosystem adaptation to changing environments, and the classification of organisms. The location of the 5 cores are as follows: HLY0202-3JPC: 60.1279N 179.4418W, HLY0202-51JPC: 54.55315N 168.66692W, HLY0202-17JPC: 53.933N 178.69883W, HLY0204-24JPC 73.231N, 167.88235W, HLY0204-28JPC: 73.44836N 167.69124W.
DOI: 10.18739/a25m62813
title: Quaternary foraminiferal data from western Arctic Ocean sediment cores, 2013-2016

description: Data reported for downcore distribution of foraminifers in three sediment cores distributed across the western Arctic Ocean (Northwind, Mendeleev, and Lomonosov Ridges). Data include total numbers for benthic and planktic foraminifers and identification of benthic species. The purpose of the data is to characterize stratigraphic changes in foraminiferal assemblages as proxies for sedimentary environments. This investigation provides insights into middle to late Pleistocene history of Arctic paleoceanographic and sea-ice conditions on multi-millennial time scales. Calcareous foraminiferal abundances and composition show stratigraphically consistent development, including glacial–interglacial variability and long-term evolution of foraminiferal assemblages. The long-term trend shows notably a diminishing role of phytodetritus-related species indicative of ice-margin proximity at the expense of oligotrophic species adapted to live under persistent sea ice. These changes presumably indicate an overall expansion of year-round ice cover in the Arctic during the Pleistocene. Data is reformatted from Lazar, K.M., Polyak, L., 2016. Middle to late Pleistocene benthic foraminifers in the Arctic Ocean: implications for sea-ice and circulation history. Marine Micropaleontology 126, 19-30.
DOI: 10.18739/a21v5bf6v
title: A Large Ornithurine Bird (Tingmiatornis arctica) from the Turonian High Arctic: Climatic and Evolutionary Implications

description: Bird fossils from Turonian (ca. 90Ma) sediments of Axel Heiberg Island (High Canadian Arctic) are among the earliest North American records. The morphology of a large well-preserved humerus supports identification of a new volant, possibly diving, ornithurine species (Tingmiatornis arctica). The new bird fossils are part of a freshwater vertebrate fossil assemblage that documents a period of extreme climatic warmth without seasonal ice, with minimum mean annual temperatures of 14°C. The extreme warmth allowed species expansion and establishment of an ecosystem more easily able to support large birds, especially in fresh water bodies such as those present in the Turonian High Arctic. Review of the high latitude distribution of Northern Hemisphere Mesozoic birds shows only ornithurine birds are known to have occupied these regions. We propose physiological differences in ornithurines such as growth rate may explain their latitudinal distribution especially as temperatures decline later in the Cretaceous. Distribution and physiology merit consideration as factors in their preferential survival of parts of one ornithurine lineage, Aves, through the K/Pg boundary. Digital files of an open access manuscript and supplemental materials file and digital copies of figures that went into the manuscript are included with this data set upload. Samples were collected during field seasons on Axel Heiberg Island. Cat scan imagery was conducted at the University of Texas, Austin. Three animations resulting from cat scan imagery are included.
DOI: 10.18739/a2x34mt09
title: Characterization of Potentially Jurassic-Age Mummified Organic Material, Ellesmere Island, Canada

description: This data set investigates the characteristics and spatial distribution of a mummified forest deposit in Quttinirpaaq National Park, Canada. Analyses include palynological characterization, tree identification, and leaf identification. Preliminary entomological identification is also included, although this analysis is ongoing. Additional files and updates will be added to this dataset as finalized.