cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.18739/a2jm23g6h
title: Dynamics and Forcing of Nares Strait from 2003 to 2009: Tidal to Interannual Variability to the West of Greenland

description: Funds are provided to test the hypothesis that the dynamics of Nares Strait is in a state of transition as the season of landfast ice cover diminishes in duration. In particular, the PIs will address two testable hypotheses: H1. Freshwater flux through the Canadian Archipelago presently transitions annually from a dynamic state characterized by land-fast ice (the winter regime) to a different one characterized by mobile ice (the summer regime). H2. A regime change towards a longer mobile summer ice regime leads to more variable ice and ocean freshwater flux as the waters of Nares Strait become exposed to time-dependent local atmospheric surface forcing in addition to remote forcing by the ambient Arctic Ocean and Baffin Bay. To do so, they propose to analyze a comprehensive 6-year data set from an array of moored ocean current, salinity, temperature, sea level, and subsurface pressure sensors, as well as ice thickness observations. The data originate from an unprecedented, high-risk, but ultimately successful 2003-2009 Canada-US observational program that took place in Nares Strait, a major pathway of Arctic waters into the North Atlantic to the west of Greenland. They propose to describe and explain the temporally and spatially varying regimes of kinematics and dynamics within this energetic channel. As oceanic fields are forced by vertical and horizontal boundary layer physics at the ice-water, air-water, and ice-air interfaces, the program includes synthesis of data from a meteorological modeling, a remotely-sensed ice (MODIS), and an ice modeling (CICE) component.
DOI: 10.18739/a2dv1cp1w
title: Publications and presentations, Dynamics and Consequences of Increasing Ice-wedge Degradation

description: This dataset contains publications and presentations related to the project
DOI: 10.15468/dl.g9ygbr
title: Occurrence Download

description: A dataset containing 3064 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is France",
 "Geometry POLYGON((5.91067 45.55996,5.78245 45.5146,5.74145 45.41342,5.62108 45.32707,5.72924 45.20146,5.9002 45.29479,5.98481 45.44133,5.91067 45.55996))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Vaccinium myrtillus L."
 ]
}

 The dataset includes 3064 records from 23 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0027720-241107131044228/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.18739/a2930nv8x
title: Soil Moisture ARCSS grid Atqasuk, Alaska 2015

description: Soil Moisture measurements were taken on a 30 plot subset within the Arctic System Science (ARCSS) Grid in Atqasuk, Alaska during the 2015 summer field season. Each measurement was taken on the north eastern most corner of each plot. The chosen subset was located from E2-E6 and J2-J6. The University of Texas at El Paso Systems Ecology Lab (SEL)'s Fieldscout TDR 300 Soil Moisture Probe was used to take all measurements.
DOI: 10.18739/a25d8nf6g
title: Media coverage

description: This dataset contains articles in newspapers and press releases related to the project
DOI: 10.18739/a21n7xn3t
title: Soil Moisture ARCSS grid Atqasuk, Alaska 2014

description: Soil Moisture measurements were taken on a 30 plot subset within the Arctic System Science (ARCSS) Grid in Atqasuk, Alaska. Each measurement was taken on the north eastern most corner of each plot. The chosen subset was located from E2-E6 and J2-J6. The System Ecology Lab (SEL) at the University of Texas El Paso Fieldscout TDR 300 Soil Moisture Probe was used to take all measurements.
DOI: 10.18739/a2s46h64s
title: Diversity and abundance of microbial assemblages in glacial meltwaters at the western margin of the Greenland Ice Sheet

description: Microbial processes that mineralize organic carbon and enhance solute production at the bed of polar ice sheets could be of a magnitude sufficient to affect global elemental cycles. To investigate the biogeochemistry of polar glacial meltwater microbial ecosystems, we analyzed water discharged during the summer of 2011, 2012 and 2013 from 1) North River, which flows through the Pituffik region of the Thule Basin (2011, 2013) and 2) Russell Glacier, a land-terminating outlet glacier near Kangerlussuaq (2012, 2013) both at the western margin of the Greenland Ice Sheet. The structure and diversity of microbial assemblages was investigated through high throughput sequence analysis of the small subunit (16S or 18S) rRNA genes. Microbial abundances of total and active microbes were determined by epifluorescence microscopy using the DNA stains DAPI and Acridine Orange and the electron transport system stain tetrazolium salt 5-cyano-2,3-ditolyltetrazolium chloride (CTC). Citation: Markus Dieser, Erik L J E Broemsen, Karen A Cameron, Gary M King, Amanda Achberger, Kyla Choquette, Birgit Hagedorn, Ron Sletten, Karen Junge and Brent C Christner (2014), Molecular and biogeochemical evidence for methane cycling beneath the western margin of the Greenland Ice Sheet, The ISME Journal 8: 2305-2316, doi:10.1038/ismej.2014.59.
DOI: 10.18739/a2ww7708m
title: Collaborative Research: Greenland Meltwater Geomicrobiology

description: The Greenland Ice Sheet (GrIS) is the largest freshwater reservoir in the Arctic. Melting of the GrIS is increasing, delivering large amounts of freshwater to the Arctic Ocean. The nature and composition of microbial communities below the GrIS are not known, but recent studies have documented the presence of viable microbial communities in other subglacial environments and within the GrIS ice itself, indicating their potential importance for chemical weathering processes. This project will characterize GrIS subglacial microbial communities to investigate the effect of microbes on lithospheric weathering and nutrient fluxes from the GrIS margin in West Greenland. The hypothesis is that the glacial thermal regime and bedrock lithology are the primary determinants of the subglacial bacterial communities, which in turn mediate nutrient release and weathering rates. Study sites in the Thule and Kangerlusuaq areas cover two major lithologies of West Greenland. The study combines state-of-the art microbiological, biogeochemical techniques, and datalogging of stream and climate parameters, to examine glacial meltwater. It is anticipated that the melting of the GrIS will have large effects on global biogeochemical cycles, ocean ecology, and atmospheric CO2. GrIS subglacial microbes are anticipated to play an important role in mobilizing elements from the lithosphere. Data generated on the diversity of GrIS microbes (Bacteria, Archaea and Eukarya) will provide an initial assessment of microbial richness and diversity in aquatic habitats beneath the GrIS. The primary objective is to examine the biodiversity and microbial contribution to geochemical processes and nutrient release, and this study will also provide insight into low temperature adaptation of life in and to a hitherto unexamined subglacial environment. A synergistic relationship with the WISSARD (Whillams Ice Stream Subglacial Access Research Drilling) project will provide the opportunity for a bipolar comparison of biodiversity beneath the Greenland and West Antarctic ice sheets. Providing data of chemical composition and fluxes of meltwater (particularly carbon, iron and trace nutrients) and sediments released by the GrIS will provide a framework to assess potential feedbacks in global biogeochemical models. Detailed measurements over two melting seasons will provide fundamental data towards a conceptual model of GrIS subglacial microbial environments.
DOI: 10.18739/a2nc5sc9j
title: Diversity and potential sources of microbiota associated with snow on western portions of the Greenland Ice Sheet

description: Snow overlays the majority of the Greenland Ice Sheet (GrIS). However, there is very little information available on the microbiological assemblages that are associated with this vast and climate-sensitive landscape. In this study, the structure and diversity of snow microbial assemblages from two regions of the western GrIS ice margin were investigated through the sequencing of small subunit ribosomal RNA genes. The origins of the microbiota were investigated by examining correlations to molecular data obtained from marine, soil, freshwater and atmospheric environments and geochemical analytes measured in the snow. Snow was found to contain a diverse assemblage of bacteria (Alphaproteobacteria, Betaproteobacteria and Gammaproteobacteria) and eukarya (Alveolata, Fungi, Stramenopiles and Chloroplastida). Phylotypes related to archaeal Thaumarchaeota and Euryarchaeota phyla were also identified. The snow microbial assemblages were more similar to communities characterized in soil than to those documented in marine ecosystems. Despite this, the chemical composition of snow samples was consistent with a marine contribution, and strong correlations existed between bacterial beta diversity and the concentration of Na+ and Cl-. These results suggest that surface snow from western regions of Greenland contains exogenous microbiota that were likely aerosolized from more distant soil sources, transported in the atmosphere and co-precipitated with the snow. Citation: Karen A. Cameron, Birgit Hagedorn, Markus Dieser, Ronald Sletten, Byron Crump, Colleen Kellogg and Karen Junge (2014), Diversity and potential sources of microbiota associated with snow on western portions of the Greenland Ice Sheet, Environ. Microbiol., doi:10.1111/1462-2920.12446.
DOI: 10.18739/a2hm52k49
title: Soil Temperature NIMS grid Barrow, Alaska 2015

description: Soil Temperature measurements were taken at each Networked Info-mechanical Systems (NIMS) grid plot. The Systems Ecology Lab (SEL) lab's Taylor Temperature Probe was used to take measurements between the matted trail and each white board at every meter at about a 10 cm depth throughout the 2015 summer in Barrow, Alaska.
DOI: 10.18739/a2cv4bs1n
title: Soil Temperature NIMS grid Barrow, Alaska 2014

description: Soil Temperature measurements were taken at each Networked Info-mechanical Systems (NIMS) grid plot. The System Ecology Lab (SEL) at the University of Texas El Paso Taylor Temperature Probe was used to take measurements between the matted trail and each white board at every meter at about a 10 cm depth throughout the 2014 summer in Barrow, Alaska.
DOI: 10.18739/a2862bc11
title: Soil Temperature NIMS grid Atqasuk, Alaska 2014

description: Soil Temperature measurements were taken at each Networked Info-mechanical Systems (NIMS) grid plot. The System Ecology Lab (SEL) at the University of Texas El Paso Taylor Temperature Probe was used to take measurements between the matted trail and each white board at every meter at about a 10 cm depth throughout the 2014 summer in Atqasuk , Alaska.
DOI: 10.18739/a24f1mj8r
title: Soil Temperature ARCSS grid Barrow, Alaska 2015

description: Soil Temperature measurements were taken on a 30 plot subset within the Arctic System Science (ARCSS) grid in Barrow, Alaska. Each measurement was taken on the north eastern most corner of each plot. The chosen subset was located from D2-D7 and H2-H7. The System Ecology Laboratory (SEL) Taylor Temperature Probe was used to take measurements at about a 10 cm depth at each plot.
DOI: 10.18739/a20p0wr4m
title: Soil Temperature ARCSS grid Barrow, Alaska 2014

description: Soil Temperature measurements were taken on a 30 plot subset within the Arctic System Science (ARCSS) grid in Barrow, Alaska. Each measurement was taken on the north eastern most corner of each plot. The chosen subset was located from D2-D7 and H2-H7. The System Ecology Lab (SEL) at the University of Texas El Paso Taylor Temperature Probe was used to take measurements at about a 10 cm depth at each plot.
DOI: 10.18739/a2vx0638x
title: Soil Temperature ARCSS grid Atqasuk, Alaska 2014

description: Soil Temperature measurements were taken on a 30 plot subset within the Arctic System Science (ARCSS) grid in Atqasuk, Alaska during the 2014 summer field season. Each measurement was taken on the north eastern most corner of each plot. The chosen subset was located from E2-E6 and J2-J6. The System Ecology Lab (SEL) at the University of Texas El Paso Taylor Temperature Probe was used to take measurements at about a 10 cm depth at each plot.
DOI: 10.18739/a2r49g932
title: Soil Moisture NIMS grid Barrow, Alaska 2015

description: Soil Moisture measurements were taken at each Networked Info-mechanical Systems (NIMS) grid plot. Used the System Ecology Laboratory (SEL) older purple TDR 300 soil moisture probe for the measurements which were taken between the matted trail and each white board at every meter throughout the 2015 summer in Barrow, Alaska.
DOI: 10.18739/a2mc8rg8t
title: Soil Moisture NIMS grid Atqasuk, Alaska 2015

description: Soil Moisture measurements were taken at each Networked Info-mechanical Systems (NIMS) grid plot. Used the System Ecology Lab (SEL) at the University of Texas El Paso labels older purple TDR 300 soil moisture probe for the measurements which were taken between the matted trail and each white board at every meter throughout the 2010 summer in Atqasuk, Alaska.
DOI: 10.18739/a2gm81p5j
title: Soil Moisture NIMS grid Atqasuk, Alaska 2014

description: Soil Moisture measurements were taken at each Networked Info-mechanical Systems (NIMS) grid plot. Used the System Ecology Lab (SEL) at the University of Texas El Paso labels older purple TDR 300 soil moisture probe for the measurements which were taken between the matted trail and each white board at every meter throughout the 2014 summer in Atqasuk, Alaska.
DOI: 10.18739/a2bz6185m
title: Soil Moisture ARCSS grid Barrow, Alaska 2014

description: Soil Moisture measurements were taken on a 30 plot subset within the Arctic System Science (ARCSS) Grid in Barrow, Alaska in summer 2014. Each measurement was taken outside the north eastern most corner of each plot. The chosen subset was located from D2-D7 and H2-H7. The System Ecology Lab (SEL) at the University of Texas El Paso Fieldscout TDR 300 Soil Moisture Probe was used to take all measurements.
DOI: 10.18739/a27659g28
title: Collaborative Research: Shifting seasonality of Arctic river hydrology alters key biotic linkages among aquatic systems

description: This research will determine how the shifting seasonality of arctic river hydrology alters key biotic linkages within and among lake and stream components of watersheds and may alter the function of the arctic system. Arctic grayling (Thymallus arcticus) is a quintessential, circumpolar arctic species that provides a model system for understanding the impacts of changing seasonality on arctic ecosystem function because an interconnected and varied landscape (large tundra rivers, small streams and lakes) is required to maintain their population viability. Changes to environmental conditions that disrupt their migration will affect the system-level function of aquatic ecosystems. Grayling serve as food for other biota, including lake trout, birds and humans, and as top-down controls in stream ecosystems suggesting that changes to their populations will have effects that reverberate throughout the coupled river-lake system. The scale and pace of the changes now impacting tundra lakes and streams imparts an urgency to understand how they are linked and how they function as a system. This work will address 4 questions: 1) How are seasonality, rate and distance of grayling migration affected by climate change? 2) Are the seasonality of life-cycles, life-history and attributes of stream insect populations changing in response to climate change? 3) How does changing seasonality of river discharge interact with insect production to affect availability and transfer of stream production to grayling? 4) What is the effect of climate driven disruption of the migratory link on the structure and function of winter refugia?
DOI: 10.18739/a2zp3w122
title: Traverse physical, chemical, and weather observations

description: These data comprise the point data collected during the Greenland Inland Traverse (GrIT) 2011 traverse. Snowpit data includes physical and chemical stratigraphy. 9 meter temperatures were measured using a thermistor string in a shallow borehole. Weather observations were collected by traverse personnel at each stop.
DOI: 10.18739/a2q52fd2w
title: Hydroxyl (OH) airglow image data, Alaska, April 23, 2012

description: Airglow image data of various emissions are stored in .png image format. The filename indicates the observation site (PFRR = Poker Flat Research Range), the observation time (year, month, day, hour, min, and sec) of image acquisition start, and finally the emission identifier follows (for example OH or Na). Please note that this data set is the RAW data and contain the entire set of images obtained during the project period. This include high, medium, and low quality image data. While we do not require co-authorship in publications using the data set, we encourage users to contact the PI to make sure the data has been interpreted correctly. Otherwise, standard scientific ethic is expected.
DOI: 10.18739/a2tx35676
title: Ice core chemistry data from each end of the traverse

description: Ice core glaciochemical data including stable water isotopes (delta 18O and delta deuterium), and major ion and trace element concentrations (strontium - Sr, cesium - Cs, barium - Ba, lanthanum - La, cerium - Ce, praseodymium - Pr, lead - Pb, bismuth - Bi, uranium - U, lithium - Li, aluminum - Al, sulfur - S, calcium - Ca, titanium - Ti, vanadium - V, chromium - Cr, manganese - Mn, iron - Fe, cobalt - Co, sodium - Na, magnesium - Mg, potassium - K, methanesulfonic acid - MSA, chloride- Cl, nitrate - NO3, sulfate - SO4) from three Greenland locations: 1) The "Owen" ice core collected from Summit Station, Greenland (72.58 N, 38.45 W, 3200 m elevation), in July, 2010. 2) The "2Barrel" ice core collected near Camp Century on the NW Greenland Ice Sheet (76.93 N, 63.12 W, 1685 m elevation), in July, 2011; and 3) The "Galen" ice core collected from 74.42 N 39.29 W 2950 m elevation) in APRIL OR MAY, 2011. The 2Barrel and Galen ice cores were collected using PICO and Kovacs hand augers, respectively, while the Owen ice core was collected using the IDDO 4-inch electromechanical drill. Cores were sampled at 4-10 cm resolution under clean-room conditions using the Dartmouth College ice core melter system with discrete sampling (Osterberg et al., 2006). Trace element concentrations were measured on the University of Maine Climate Change Institute Thermo ELEMENT2 ICP-MS. Stable water isotope ratios were measured on Picarro L1102-i Liquid Water Analyzers at Dartmouth and in the Iowa State University Stable Isotope Laboratory. Sulfate, nitrate, chloride, and methanesulfonate concentrations were measured on the 2Barrel ice core samples by Dionex ICS-5000 capillary ion chromatograph. Timescales for each core were created through multi-paramater annual layer counting of season oscillations in sea-salt (Na, Cl), dust (Al, Fe, U), and MSA concentrations, and stable water isotope (d18O, dD) ratios. The uncertainty in each timescale is +- 0.5 years based on repeat, independent annual layer counts.
DOI: 10.18739/a2kd1qk9m
title: Hydroxyl (OH) airglow image data, Alaska, April 21, 2012

description: Airglow image data of various emissions are stored in .png image format. The filename indicates the observation site (PFRR = Poker Flat Research Range), the observation time (year, month, day, hour, min, and sec) of image acquisition start, and finally the emission identifier follows (for example OH or Na). Please note that this data set is the RAW data and contain the entire set of images obtained during the project period. This include high, medium, and low quality image data. While we do not require co-authorship in publications using the data set, we encourage users to contact the PI to make sure the data has been interpreted correctly. Otherwise, standard scientific ethic is expected.
DOI: 10.18739/a2fq9q58n
title: Hydroxyl (OH) airglow image data, Alaska, April 22, 2012

description: Airglow image data of various emissions are stored in .png image format. The filename indicates the observation site (PFRR = Poker Flat Research Range), the observation time (year, month, day, hour, min, and sec) of image acquisition start, and finally the emission identifier follows (for example OH or Na). Please note that this data set is the RAW data and contain the entire set of images obtained during the project period. This include high, medium, and low quality image data. While we do not require co-authorship in publications using the data set, we encourage users to contact the PI to make sure the data has been interpreted correctly. Otherwise, standard scientific ethic is expected.
DOI: 10.18739/a29z90c5c
title: Hydroxyl (OH) airglow image data, Alaska, April 19, 2012

description: Airglow image data of various emissions are stored in .png image format. The filename indicates the observation site (PFRR = Poker Flat Research Range), the observation time (year, month, day, hour, min, and sec) of image acquisition start, and finally the emission identifier follows (for example OH or Na). Please note that this data set is the RAW data and contain the entire set of images obtained during the project period. This include high, medium, and low quality image data. While we do not require co-authorship in publications using the data set, we encourage users to contact the PI to make sure the data has been interpreted correctly. Otherwise, standard scientific ethic is expected.
DOI: 10.18739/a26688k1j
title: Hydroxyl (OH) airglow image data, Alaska, April 20, 2012

description: Airglow image data of various emissions are stored in .png image format. The filename indicates the observation site (PFRR = Poker Flat Research Range), the observation time (year, month, day, hour, min, and sec) of image acquisition start, and finally the emission identifier follows (for example OH or Na). Please note that this data set is the RAW data and contain the entire set of images obtained during the project period. This include high, medium, and low quality image data. While we do not require co-authorship in publications using the data set, we encourage users to contact the PI to make sure the data has been interpreted correctly. Otherwise, standard scientific ethic is expected.
DOI: 10.18739/a22f7jr69
title: Hydroxyl (OH) airglow image data, Alaska, April 18, 2012

description: Airglow image data of various emissions are stored in .png image format. The filename indicates the observation site (PFRR = Poker Flat Research Range), the observation time (year, month, day, hour, min, and sec) of image acquisition start, and finally the emission identifier follows (for example OH or Na). Please note that this data set is the RAW data and contain the entire set of images obtained during the project period. This include high, medium, and low quality image data. While we do not require co-authorship in publications using the data set, we encourage users to contact the PI to make sure the data has been interpreted correctly. Otherwise, standard scientific ethic is expected.
DOI: 10.15468/dl.547svt
title: Occurrence Download

description: A dataset containing 74 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is Human Observation",
 "TaxonKey is Tapinoma magnum Mayr, 1861",
 "Year 2000-2024"
 ]
}

 The dataset includes 74 records from 7 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0027723-241107131044228/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.