cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15784/601221
title: South Pole Ice Core (SPICEcore) SPC14 Core Quality Versus Depth

description: Qualitative assessment of ice-core quality versus depth for the South Pole ice core SPC14. The depths and core quality ratings presented here are from the field observations made at South Pole, Antarctica, during the course of the drilling of the ice core and also from the lab observations at the NSF-Ice Core Facility in Lakewood, Colorado. Depths are in meters. Core quality ratings were defined are as follows. Excellent: 0–1 breaks/no fractures; Very Good: 0–2 breaks/90% no fractures; Good: 0–3 breaks/50% no fractures; Fair: &gt;10 cm without fractures; Poor: &gt;10 cm without through fractures; Very Poor: &lt;10 cm without through fractures.
DOI: 10.15784/601223
title: South Pole high resolution ice core water stable isotope record for dD, d18O

description: Isotopic data for the South Pole Ice Core has been generated under a collaborative effort by the University of Washington Isolab (NSF Award#1443105) and the University of Colorado INSTAAR Isotope Lab (NSF Award# 1443328). This data set contains high-resolution stable isotope data (dD, d18O,) for the South Pole Ice core. D17O is submitted under University of Washington Isolab (NSF Award#1443105). Drilling was initiated in 2014 and completed in 2016, and subsequent analyses on the ice were performed at the Institute of Arctic and Alpine Research, University of Colorado using Continuous Flow Analysis (CFA) as described in Jones et al. (2017). Entire meters of core are slowly melted and resulting water is converted to vapor for analysis with two cavity ring down spectrometers (CRDS), a Picarro L-2130 for dD and d18O, and a Picarro L-2140 for d17O and calculated D. Each meter of ice takes approximately 40 minutes to melt, and data are generated nominally at 1Hz, resulting in approximately 2,400 data points per meter. Each data point is ascribed to a specific depth using a depth-assignment algorithm that accounts for mixing within the system. Multiple data files are generated: a) Unfiltered data for dD, and d18O from the main core: 5 m → 1751 m depth, (4,934,966 total data points) including outliers; b) Sub sampled dD and d18O data from the main core created by averaging all non-flagged data points on 0.5 cm intervals, (350,200 data points); and c) d17O and subsequent D17O for depths 556m → 1751m. Users of the data should understand that the main core data includes all data, with a flagging that allows users to filter data (see README files). We also analyzed three replicate segments (809-951m, 1020-1078m and 1499-1542m), which serve to verify the new methodology, and serve as alternate data for any sections that were otherwise compromised. Tyler Jones, James W. C. White, Steig, E. J., Bruce H. Vaughn, Valerie Morris, Gkinis, V. , Markle, B. R. , Schoenemann, S. W. 2017: Improved methodologies for continuous-flow analysis of stable water isotopes in ice cores. Atmospheric Measurement Techniques, 10: 617-632. DOI: 10.5194/amt-10-617-2017
DOI: 10.15468/dl.t2w2jx
title: Occurrence Download

description: A dataset containing 26199 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Scenedesmus Meyen, 1829"
 ]
}

 The dataset includes 26199 records from 284 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0025882-241024112534372/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15784/601183
title: ASPeCt Visual Ice Observations on PIPERS Cruise NBP1704 April-June 2017

description: This dataset is the csv file of hourly visual ice observations conducted in the ASPeCt protocol on the PIPERS cruise NBP1704 to the Ross Sea during April to June 5 2017.  Parameters are ice concentration, thickness, snow depth, floe sizes, etc for up to three categories of ice type within a 1km radius of the ship during the observation.  These are identified by date, time and latitude, longitude at the time of observations
DOI: 10.15468/dl.n7wstu
title: Occurrence Download

description: A dataset containing 439 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Macromia splendens (Pictet, 1843)",
 "HasCoordinate is true",
 "Year is greater than or equal to 2013",
 "Year is less than or equal to 2018",
 "CoordinateUncertaintyInMeters is less than or equal to 1000"
 ]
}

 The dataset includes 439 records from 14 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0025884-241024112534372/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.2fmmum
title: Occurrence Download

description: A dataset containing 349 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Canada",
 "OccurrenceStatus is Present",
 "TaxonKey is Ardea herodias fannini Chapman, 1901"
 ]
}

 The dataset includes 349 records from 20 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0025885-241024112534372/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.6084/m9.figshare.25038107.v1
title: Supplementary Table 2

description: Metadata of Anti-Microbial Resistance (AMR) genes obtained from MAGs constructed from 12 healthy adults treated antibiotic cocktail treatment.
DOI: 10.15784/601185
title: PIPERS Meteorology Rawinsonde Data

description: This file contains rawinsonde data from 134 rawisnonde soundings performed during the 2017 PIPERS cruise for the period 14 April 2330 – 5 June 1130  (UT).
DOI: 10.15784/601184
title: PIPERS Meteorology Time Series

description: This file contains times series data from the 2017 PIPERS cruise for the period 15 April 0000 – 8 June 1200  (UT).   The time series data represent one minute means and include data collected by the Naval Postgraduate School from the starboard side boom (including occasionally on ice surface temp sampling),  radiation system on the helo deck and sometimes in situ surface temp.  Also included are meteorological, navigation and surface oceanography (from intake) data from the standard ship systems.
DOI: 10.15784/601182
title: NBP1502 YoYo camera benthic images from Ross Sea

description: Still and video benthic images collected during expedition NBP1502 in the Ross Sea using a YoYo camera system.
DOI: 10.15784/601181
title: Geophysical data from Crary Ice Rise, Ross Sea Embayment

description: This data set contains radar-detected measurements of surface topography, internal stratigraphy, ice thickness and derived bed topography across Crary Ice Rise in the Ross Sea Embayment.
DOI: 10.6084/m9.figshare.25038224.v1
title: Supplementary Table 3

description: Co-enrichment correlation between each selected microbes’ abundance and other mOTUs’ were calculated by spearman test. Microbe which showed correlation between –0.3 &lt; and &lt; 0.3 with all selected species were excluded. The correlations that both microbes co-existed at least 5 communities and showed significant p-value (&gt;0.05) were selected.
DOI: 10.15784/601178
title: CTD stations and logs for Araon 2018 ANA08D expedition to Larson C

description: Marine ecosystems under large ice shelves are thought to contain sparse, low-diversity plankton and seafloor communities due the low supply of food from productive sunlight waters. Past studies have shown sub-ice shelf ecosystems to change in response to altered oceanographic processes resulting from ice-shelve retreat. However, information on community changes and ecosystem structure under ice shelves are limited because sub-ice-shelf ecosystems have either been sampled many years after ice-shelf breakout, or have been sampled through small boreholes, yielding extremely limited spatial information. The recent breakout of the A-68 iceberg from the Larsen C ice shelf in the western Weddell Sea provides an opportunity to use a ship-based study to evaluate benthic communities and water column characteristics in an area recently vacated by a large overlying ice shelf. The opportunity will allow spatial assessments at the time of transition from an under ice-shelf environment to one initially exposed to conditions more typical of a coastal Antarctic marine setting. 



This RAPID project will help determine the state of a coastal Antarctic ecosystem newly exposed from ice-shelf cover and will aid in understanding of rates of community change during transition. The project will conduct a 10-day field program, allowing contrasts to be made of phytoplankton and seafloor megafaunal communities in areas recently exposed by ice-shelf loss to areas exposed for many decades. The project will be undertaken in a collaborative manner with the South Korean Antarctic Agency, KOPRI, by participating in a cruise in March/May 2018. Combining new information in the area of Larsen C with existing observations after the Larsen A and B ice shelf breakups further to the north, the project is expected to generate a dataset that can elucidate fundamental processes of planktonic and benthic community development in transition from food-poor to food-rich ecosystems. The project will provide field experience to two graduate students, a post-doctoral associate and an undergraduate student. Material from the project will be incorporated into graduate courses and the project will communicate daily work and unfolding events through social media and blogs while they explore this area of the world that is largely underexplored.
DOI: 10.15784/601180
title: Geochemical and sedimentologic data from NBP01-01 JPC-34

description: This dataset contains 14C data, magnetic susceptibility, relative grain size percentages, 10Be
DOI: 10.15468/dl.kn5dbs
title: Occurrence Download

description: A dataset containing 2796 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Oxygastra curtisii (Dale, 1834)",
 "HasCoordinate is true",
 "Year is greater than or equal to 2013",
 "Year is less than or equal to 2018",
 "CoordinateUncertaintyInMeters is less than or equal to 1000"
 ]
}

 The dataset includes 2796 records from 102 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0025886-241024112534372/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15784/601189
title: AC-ECM for SPICEcore

description: These are AC-ECM data used to identify volcanic events in SPICEcore. The data have been normalized to get a consistent baseline for data collected from three different processing seasons.
DOI: 10.15784/601191
title: SUMO unmanned aerial system (UAS) atmospheric data

description: Atmospheric boundary layer temperature, humidity, pressure, and wind profile data collected with the Small Unmanned Meteorological Observer (SUMO) unmanned aerial system (UAS) during the NBP1704 PIPERS cruise.
DOI: 10.15784/601193
title: Andvord Bay sediment core data collected during the FjordEco project (LMG1510 and NBP1603)

description: This dataset includes Pb-210 activities, grain-size distributions, and x-radiograph negatives for cores collected primarily during NBP1603 (and also LMG1510) as part of the FjordEco project in Andvord Bay and surrounding areas (Gerlache Strait, and Station B on the shelf). Data are from subsampled intervals of kasten cores and box cores, as well as one megacore. Samples were x-rayed, sliced, and bagged onboard the vessel. Grain-size and Pb-210 analyses were completed in the Sediment Dynamics Lab within the University of Washington School of Oceanography (PI C. Nittrouer).
DOI: 10.15784/601194
title: Crustal Structure beneath the Northern Transantarctic Mountains and Wilkes Subglacial Basin: Implications for Tectonic Origins

description: The Transantarctic Mountains (TAMs) are the largest non-collisional mountain range on Earth. Their origin, as well as the origin of the Wilkes Subglacial Basin (WSB) along the inland side of the TAMs, have been widely debated, and a key constraint to distinguish between competing models is the underlying crustal structure. Previous investigations have examined this structure but have primarily focused on a small region of the central TAMs near Ross Island, providing little along-strike constraint. In this study, we use data from the new Transantarctic Mountains Northern Network and from five stations operated by the Korea Polar Research Institute to investigate the crustal structure beneath a previously unexplored portion of the TAMs. Using S-wave receiver functions and Rayleigh wave phase velocities, crustal thickness and average crustal shear velocity (Vs) are resolved within ±4 km and ±0.1 km/s, respectively. The crust thickens from ~20 km near the Ross Sea coast to ~46 km beneath the northern TAMs, which is somewhat thicker than that imaged in previous studies beneath the central TAMs. The crust thins to ~41 km beneath the WSB.Vs ranges from ~3.1-3.9 km/s, with slower velocities near the coast. Our findings are consistent with a flexural origin for the TAMs and WSB, where these features result from broad flexure of the East Antarctic lithosphere and uplift along its western edge due to thermal conduction from hotter mantle beneath West Antarctica. Locally thicker crust may explain the ~1 km of additional topography in the northern TAMs compared to the central TAMs.
DOI: 10.15468/dl.r6x6wp
title: Occurrence Download

description: A dataset containing 3 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Caenolestes condorensis Albuja & Patterson, 1996"
 ]
}

 The dataset includes 3 records from 3 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0025887-241024112534372/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15784/601195
title: Noble Gas Data from recent ice in Antarctica for 86Kr problem

description: This data comprises a survey of Recent ice from multiple sites in Antarctica using shallow ice cores to examine noble gas values in ice that nominally has the same Mean Ocean Temperature as today. The goal is to elucidate fractionation that occurs in the firn before air is trapped in bubbles in the ice, by making the assumption that the atmosphere noble gas content has not changed since this air was trappped. The ages of the air samples are typically early Industrial Revolution or late Holocene.
DOI: 10.15784/601197
title: SPICEcore Holocene CO2 and N2O data

description: Measurements of CO2, N2O, and the isotopic composition of CO2 from the Holocene section of SPICEcore
DOI: 10.15784/601198
title: Gas and Dust Measurements for Taylor Glacier and Taylor Dome Ice Cores

description: New ice cores retrieved from the Taylor Glacier (Antarctica) blue ice area contain ice and air spanning the Marine Isotope Stage (MIS) 5-4 transition, a period of global cooling and ice sheet expansion. We determine chronologies for the ice and air bubbles in the new ice cores by visually matching variations in gas- and ice- phase tracers to preexisting ice core records. The chronologies reveal an ice age-gas age difference (Δage) approaching 10 ka during MIS 4, implying very low snow accumulation in the Taylor Glacier accumulation zone. A revised chronology for the analagous section of the Taylor Dome ice core (84 to 55 ka), located to the south of the Taylor Glacier accumulation zone, shows that Δage did not exceed 3 ka. The difference in Δage between the two records during MIS 4 is similar in magnitude but opposite in direction to what is observed at the Last Glacial Maximum. This relationship implies that a spatial gradient in snow accumulation existed across the Taylor Dome region during MIS 4 that was oriented in the opposite direction of the accumulation gradient during the Last Glacial Maximum.
DOI: 10.6084/m9.figshare.25038485.v1
title: Supplementary Table 4

description: Metadata for supplementary data 2 (MAG - liver cirrhosis patients)
DOI: 10.15784/601202
title: Carbon dioxide concentration and its stable carbon isotope composition in Allan Hills ice cores

description: This file includes the concentration of carbon dioxide (CO2) and methane (CH4) and the stable carbon isotope composition of CO2 in Allan Hills ice cores (ALHIC1502 and ALHIC1503).
DOI: 10.15468/dl.em222s
title: Occurrence Download

description: A dataset containing 1275 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Gomphus graslinii Rambur, 1842",
 "HasCoordinate is true",
 "Year is greater than or equal to 2013",
 "Year is less than or equal to 2018",
 "CoordinateUncertaintyInMeters is less than or equal to 1000"
 ]
}

 The dataset includes 1275 records from 27 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0025888-241024112534372/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15784/601201
title: Elemental and isotopic composition of heavy noble gases in Allan Hills ice cores

description: This file includes argon isotope composition and xenon-to-krypton ratios measured in Allan Hills ice cores.
DOI: 10.15784/601203
title: Methane concentration in Allan Hills ice cores

description: This file includes the concentration methane (CH4) in Allan Hills ice cores (ALHIC1502 and ALHIC1503).
DOI: 10.15784/601204
title: Elemental and isotopic composition of nitrogen, oxygen, and argon in Allan Hills ice cores

description: This file includes the d15N, O2/N2 ratio, Ar/N2 ratio, and d18O of O2 (d18Oatm) in Allan Hills ice cores (ALHIC1502 and ALHIC1503).
DOI: 10.15468/dl.aq6344
title: Occurrence Download

description: A dataset containing 44 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is China",
 "TaxonKey is Prunus avium (L.) L."
 ]
}

 The dataset includes 44 records from 12 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0025890-241024112534372/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15784/601206
title: The South Pole Ice Core (SPICEcore) chronology and supporting data

description: The South Pole Ice Core (SPICEcore) was drilled in 2014-2016 to provide a detailed multi-proxy archive of paleoclimate conditions in East Antarctica during the Holocene and late Pleistocene. Interpretation of these records requires an accurate depth-age relationship. Here, we present the SP19 timescale for the age of the ice of SPICEcore. SP19 is synchronized to the WD2014 chronology from the West Antarctic Ice Sheet Divide (WAIS Divide) ice core using stratigraphic matching of 251 volcanic events. These events indicate an age of 54,302 +/- 519 years BP (before the year 1950) at the bottom of SPICEcore. Annual layers identified in sodium and magnesium ions to 11,341 BP were used to interpolate between stratigraphic volcanic tie points, yielding an annually-resolved chronology through the Holocene. Estimated timescale uncertainty during the Holocene is less than 18 years relative to WD2014, with the exception of the interval between 1800 to 3100 BP when uncertainty estimates reach +/- 25 years due to widely spaced volcanic tie points. Prior to the Holocene, uncertainties remain within 124 years relative to WD2014. Results show an average Holocene accumulation rate of 7.4 cm/yr (water equivalent). The time variability of accumulation rate is consistent with expectations for steady-state ice flow through the modern spatial pattern of accumulation rate. Time variations in nitrate concentration, nitrate seasonal amplitude, and δ15N of N2 in turn are as expected for the accumulation-rate variations. The highly variable yet well-constrained Holocene accumulation history at the site can help improve scientific understanding of deposition-sensitive climate proxies such as δ15N of N2 and photolyzed chemical compounds.
DOI: 10.15784/601207
title: Sea Ice Layer Cakes, PIPERS 2017

description: Layer Cakes for the PIPERS ice stations 4, 7, 8 and 9 (05/24, 05/29, 05/31, 06/02) with snow depth (both raw and interpolated), surface lidar scan and ice draft AUV scan aligned onto a common 100m x 100m grid, binned at 0.2m resolution.
DOI: 10.6084/m9.figshare.25038491.v1
title: Supplementary Table 5

description: Metadata for supplementary data 3 (MAG - Preterm infants)
DOI: 10.15468/dl.rkxanq
title: Occurrence Download

description: A dataset containing 2976 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Chlorella M.Beijerinck, 1890"
 ]
}

 The dataset includes 2976 records from 160 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0025891-241024112534372/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15784/601208
title: Liv and Amundsen Glacier Radiocarbon Data
DOI: 10.21957/1qyd-ep25
title: ERA6 prototype test sample dataset 1 from Oct 2019 to April 2020
DOI: 10.15784/601209
title: Dynamic fine-scale sea-icescape shapes adult emperor penguin foraging habitat in East Antarctica

description: The emperor penguin, an iconic species threatened by projected sea-ice loss in Antarctica, has long been considered to forage at the fast ice edge, presumably relying on large/yearly-persistent polynyas as their main foraging habitat during the breeding season. Using newly developed fine-scale sea-icescape data and historical penguin tracking data, this study for the first time suggests the importance of less-recognized small openings, including cracks, flaw leads and ephemeral short-term polynyas, as foraging habitats for emperor penguins. The tracking data retrieved from 47 emperor penguins in two different colonies in East Antarctica suggest that those penguins spent 23% of their time in ephemeral polynyas and did not use the large/yearly-persistent, well-studied polynyas, even they occur much more regularly with predictable locations. These findings challenge our previous understanding of emperor penguin breeding habitats, highlighting the need for incorporating fine-scale seascape features when assessing the population persistence in a rapidly changing polar environment.
DOI: 10.15784/601210
title: Carbon and nitrogen stable isotope values of Antarctic Krill from the South Shetland Islands and the northern Antarctic Peninsula 2007 and 2009

description: This data set contains measurements of carbon (δ13C) and nitrogen (δ15N) stable isotope values of whole-body Antarctic krill (Euphausia superba) collected from trawl surveys of waters surrounding the South Shetland Islands and the northern Antarctic Peninsula during the 2006-07 and 2008-90 Austral summers. Stable isotope analyses were conducted using an elemental analyzer coupled to a continuous flow stable isotope ratio mass spectrometer. Individual krill were lipid-extracted prior to analyses. The data set also includes latitude, longitude, month, and year of sample collection, standard length of the krill to the nearest mm, age class, sex, and carbon to nitrogen ratios. Details of the data set and all relevant methods are provided in Polito et al., 2013 and Polito et al., 2019.
DOI: 10.15468/dl.8cd6qk
title: Occurrence Download

description: A dataset containing 486 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Saga pedo (Pallas, 1771)",
 "HasCoordinate is true",
 "Year is greater than or equal to 2013",
 "Year is less than or equal to 2018",
 "CoordinateUncertaintyInMeters is less than or equal to 1000"
 ]
}

 The dataset includes 486 records from 60 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0025892-241024112534372/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.