cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.18739/a2h12v788
title: thule_met_2013.xls

description: Data from a small meteorological station set-up near 21 plots in 2013. Campbell Scientific CR10 datalogger, Campbell 215 temp/humidity sensor, two Apogee PAR sensors (one facing up, another facing down), soil temperature with type T thermocouple, Campbell CS616 soil reflectometer for soil water content. Data collected between DOY153 and DOY224. Logger collected a measurement every 60 seconds and averaged to 5 min data table. Post-processing to 60 min averages and daily mean, max, and min. MS Excel (.xls) workbook with three worksheets. Worksheet 5_min data columns: year, day of year, hour, minute, fractional day of year, incoming PAR (umol m-2 s-1), reflected PAR (umol m-2 s-1), albedo calculated as (par_out/par_in)*100, air temperature (C), relative humidity (%), soil temp (C), raw reflectance time reported by CS616, calculated volumetric water content corrected for soil temperature (v/v), battery voltage. Worksheet 60_min data columns (units as above): day of year, hour, fractional day of year, week of year, air temperature, relative humidity, incoming PAR, outgoing PAR, albedo, soil temperature, and volumetric water content. Worksheet daily (units as above unless indicated): date, day of year, air temperature min, air temperature max, air temperature mean, relative humidity min, relative humidity max, relative humidity mean, soil temperature mean, soil water content mean, total incoming PAR (mol m-2 d-1), out going PAR (mol m-2 d-1), albedo, minimum battery voltage. missing values are -6999 or 6999. Soil temperature and VWC not valid until instruments could be installed in the soil DOY 163. RH sensor failed DOY177, did not function again. Battery issue DOY 183.
DOI: 10.15468/dl.6r6zf8
title: Occurrence Download

description: A dataset containing 74 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 },
 "TaxonKey is one of (Nannoglottis gynura (C.Winkl.) Y.Ling & Y.L.Chen)"
 ]
}

 The dataset includes 74 records from 11 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0027731-241107131044228/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.18739/a2c824f50
title: thule_flux_plot_temps_2013.csv

description: Soil temperatures at approximately 10 cm depth of plots randomly positioned within a wet sedge meadow near Thule Air Base, Greenland. Total of 21 plots. Plots consist of a collar for flux measurements 6" in diameter but measurements were made outside the collar to avoid soil disturbance. IButtons installed DOY168, removed DOY223 in 2013. Data processed to remove values when iButtons were not in soil and equalized with soil temperature. csv, comma-delimited text. Data columns are: plot number, year, day of year, hour of day, minute of hour, fractional day of year, fractional year, temperature in C. Temperature resolution is 0.5 C
DOI: 10.18739/a27m0412m
title: thule_flux_plot_ndvi_2013.csv

description: NDVI and saNDVI of plots randomly positioned within a wet sedge meadow near Thule Air Base, Greenland. Total of 21 plots. Plots consist of a collar for flux measurements 6" in diameter. PP Systems Unispec DC. NDVI was measured periodically throughout the summer beginning DOY 170, ending DOY222. Values are calculated NDVI using red = 635-667, NIR = 835-870. saNDVI calculation used 0.5 as the adjustment. .csv, comma-delimited text. Data columns are: unispec file name, day of year, NDVI, saNDVI, plot number.
DOI: 10.18739/a23t9d69s
title: Significant differences in late Quaternary bedrock erosion and transport: East versus West Greenland -70°N - evidence from the mineralogy of offshore glacial marine sediments

description: We use quantitative X-ray diffraction to determine the mineralogy of late Quaternary marine sediments from the West and East Greenland shelves offshore from early Tertiary basalt outcrops. Despite the similar basalt outcrop area (60 000-70 000 km**2), there are significant differences between East and West Greenland sediments in the fraction of minerals (e.g. pyroxene) sourced from the basalt outcrops. We demonstrate the differences in the mineralogy between East and West Greenland marine sediments on three scales: (1) modern day, (2) late Quaternary inputs and (3) detailed down-core variations in 10 cores from the two margins. On the East Greenland Shelf (EGS), late Quaternary samples have an average quartz weight per cent of 6.2 ± 2.3 versus 12.8 ± 3.9 from the West Greenland Shelf (WGS), and 12.02 ± 4.8 versus 1.9 ± 2.3 wt% for pyroxene. K-means clustering indicated only 9% of the samples did not fit a simple EGS vs. WGS dichotomy. Sediments from the EGS and WGS are also isotopically distinct, with the EGS having higher eNd (-18 to 4) than those from the WGS (eNd = -25 to -35). We attribute the striking dichotomy in sediment composition to fundamentally different long-term Quaternary styles of glaciation on the two basalt outcrops.
DOI: 10.18739/a2028pd6f
title: An Innovative Observational Network for Critical Arctic Gateways--Understanding Exchanges through Davis and Fram Straits

description: This coordinated international effort plans to quantify the variability of fluxes connecting the Arctic and subpolar oceans, understand the role played by the Arctic and sub-Arctic in steering decadal scale climate variability and establish a pan-Arctic integrated observing network. Researcher's investigation will focus on understanding exchanges across a major gateway linking the Arctic with the subpolar North Atlantic Davis Strait (Canadian Arctic Archipelago). Fluxes through Davis Strait represent the net integrated Canadian Archipelago throughflow, modified by terrestrial inputs and oceanic processes during its southward transit through Baffin Bay. By the time they reach Davis Strait, Arctic waters already embody most of the transformations they undergo prior to exerting their influence on the deepwater formation sites in the Labrador Sea. This project will study the Davis Strait watermass variability, volume, liquid freshwater, heat and ice fluxes at weekly to inter-annual timescales. These measurements will be used to advance understanding of the impacts of these exchanges on large scale characteristics of the Atlantic and Arctic Oceans.
DOI: 10.18739/a2bc3sx76
title: Collaborative Research: Toward a Circumarctic Lakes Observation Network (CALON)-- Multiscale observations of lacustrine systems

description: The scientific goals and methods that address the intellectual merits of the research are: (1) Expand on existing lake monitoring sites in northern Alaska by developing a network of regionally representative lakes along environmental gradients from which we will collect baseline data to assess current physical, chemical, and biological lake characteristics. This will allow the project scientists to make spatial and temporal comparisons to determine the impact of warmer temperatures, changing cloud cover and precipitation patterns, permafrost degradation, and direct human impacts on lakes; (2) Implement a multiscale (hierarchical) lake instrumentation scheme such that basic data is collected from 51 lakes, while a subset of lakes are more intensively instrumented; (3) Provide regional scaling and extrapolation of key metrics through calibration and validation of satellite imagery with ground measurements; and (4) Develop and implement standardized protocols to enable inter-site comparison and to prepare for expansion towards a pan-Arctic network. The education/outreach goals that address the broader impacts of the research outlined above are: (1) Incorporate indigenous observations of lake physical and biological characteristics and changes. Innovative interactive methods of sharing information will be developed and made available through native and local organizations. Scientific and technical training will be provided to Iñupiat students for monitoring lake and drinking water quality; (2) Develop a demonstration monitoring network based on the Delay Tolerant Network (DTN) architecture and link this network to research centers, indigenous communities, and other power- and connectivity-challenged environments; (3) Develop and refine data management, visualization, and archiving activities with ACADIS; and (4) Provide an introduction to Arctic science for several beginning investigators. Funding Source: Arctic Observing Network (AON), Arctic System Science Program (ARCSS) Sponsors: - University of Cincinnati Main Campus, University Hall, Suite 530, Cincinnati, OH 45221 - University of Nebraska-Lincoln, 312 N 14th Street, Lincoln, NE 68588 - University of Alaska Fairbanks Campus, West Ridge Research Bldg 008, Fairbanks, AK 99775 - Alaska Science Center, U.S. Geological Survey, 4210 University Ave., Anchorage, AK 99508
DOI: 10.5281/zenodo.14202422
title: Fast Polymeric Functionalization Approach for the Covalent Coating of MoS2 Layers

description: Includes data relevant for publication with DOI doi.org/10.1021/acsami.1c08294
DOI: 10.5281/zenodo.14202423
title: Fast Polymeric Functionalization Approach for the Covalent Coating of MoS2 Layers

description: Includes data relevant for publication with DOI doi.org/10.1021/acsami.1c08294
DOI: 10.5281/zenodo.13982387
title: ctMSNovelist
DOI: 10.5281/zenodo.13982388
title: ctMSNovelist
DOI: 10.5281/zenodo.14168787
title: ctMSNovelist
DOI: 10.5281/zenodo.14202770
title: ctMSNovelist
DOI: 10.15468/dl.w7zsb3
title: Occurrence Download

description: A dataset listing the 1 species recorded in GBIF matching the query:
{
 "and" : [
 "Country is Malaysia",
 "TaxonKey is Tyto alba (Scopoli, 1769)"
 ]
}

 The dataset's 1 records were derived from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0027721-241107131044228/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.18739/a2pk0725f
title: Collaborative Research: Turning on the lights - Photochemical and microbial processing of newly exposed carbon in arctic ecosystems

description: This project will investigate the fate of dissolved organic matter (DOM) released in increasing amounts to Arctic surface waters through such disturbances as fire, thermokarst failure, and thawing of permafrost. The investigators hypothesize that newly available soil carbon will be labile to photochemical and microbial attack, and will enhance the degradation of resident DOM in the system resulting in poorer quality DOM exported to the ocean. They plan to develop a mechanistic understanding of these processes by: (A) Determining how fast photochemical reactions and microbial processing will alter resident DOM and the newly-released DOM in surface waters, and (B) Measuring the fate of DOM in surface waters, either as CO2 released to the atmosphere or as organic carbon altered and transported to coastal oceans. This would be accomplished with a series of laboratory experiments to determine rates of photodegradation and microbial processing of DOM from different sources, and a series of landscape comparisons and sampling transects to characterize DOM degradation in small basins and large rivers extending 250-300 km from the headwaters to the Arctic Ocean. By integrating this process-based research with ongoing projects studying the formation of thermokarst failures and the impacts of burning on plant and soil carbon allocation, the investigators will address questions such as whether carbon export from tundra to oceans will rise or fall, how reactive is that exported carbon, and what will be the ultimate impact of impending disturbances, including climate change, on the net carbon balance of the Arctic and its interaction with the global carbon cycle. The investigators will work with several established programs at UNC and UM to (1) recruit women and minority student participation and research in this project specifically from Historically Black Colleges, (2) participate in a workshop on mentoring strategies for minorities, and (3) develop additional outreach activities, including talks to middle and high schools by the PIs, graduate, and undergraduate students. Presentation of data will coordinate with NSIDC and Arctic LTER data management.
DOI: 10.18739/a2tb0xw0w
title: Nitrogen Oxides from GEOsummit Station, Greenland

description: Data products from this project include NO and NO2 made at the GEOSummit station from summer 2012 through winter 2014. The data will provide important information on the concentrations of nitrogen oxides transported to the Arctic, which vary both seasonally and annually.
DOI: 10.18739/a2js9h827
title: Photochemical and microbial processing of newly exposed carbon

description: This project will investigate the fate of dissolved organic matter (DOM) released in increasing amounts to Arctic surface waters through such disturbances as fire, thermokarst failure, and thawing of permafrost. The investigators hypothesize that newly available soil carbon will be labile to photochemical and microbial attack, and will enhance the degradation of resident DOM in the system resulting in poorer quality DOM exported to the ocean. They plan to develop a mechanistic understanding of these processes by: (A) Determining how fast photochemical reactions and microbial processing will alter resident DOM and the newly-released DOM in surface waters, and (B) Measuring the fate of DOM in surface waters, either as CO2 released to the atmosphere or as organic carbon altered and transported to coastal oceans. This would be accomplished with a series of laboratory experiments to determine rates of photodegradation and microbial processing of DOM from different sources, and a series of landscape comparisons and sampling transects to characterize DOM degradation in small basins and large rivers extending 250-300 km from the headwaters to the Arctic Ocean. By integrating this process-based research with ongoing projects studying the formation of thermokarst failures and the impacts of burning on plant and soil carbon allocation, the investigators will address questions such as whether carbon export from tundra to oceans will rise or fall, how reactive is that exported carbon, and what will be the ultimate impact of impending disturbances, including climate change, on the net carbon balance of the Arctic and its interaction with the global carbon cycle. The investigators will work with several established programs at UNC and UM to (1) recruit women and minority student participation and research in this project specifically from Historically Black Colleges, (2) participate in a workshop on mentoring strategies for minorities, and (3) develop additional outreach activities, including talks to middle and high schools by the PIs, graduate, and undergraduate students. Presentation of data will coordinate with NSIDC and Arctic LTER data management.
DOI: 10.18739/a29c6s18v
title: Physical, chemical, and biological data from lagoons and open coastal waters in the nearshore environment of the eastern Alaska Beaufort Sea, 2011-2013

description: Data from discrete water samples, benthic grabs and trawls, plankton tows, and in-situ sensors were collected along the eastern Alaska Beaufort Sea coast, between the Hulahula River delta (144.190 degrees West) and Demarcation Bay (141.267 degrees West) were collected between 2011 and 2013. The first sampling trip was conducted in August 2011. Samples were collected during April (through ice), late June early July (during ice break-up), and August (open water) in 2012 and 2013. HOBO data loggers for temperature and salinity were deployed during the August 2011 trip and recorded ~2.5 years of continuous data over the course of the project. Samples/data were collected at six lagoon sites (Kaktovik Lagoon, Jago Lagoon, Tapkaruk Lagoon, Angun Lagoon, Nuvagapak Lagoon, and Demarcation Bay), and four open water sites along the coastline (Hulahula, Bernard Point Dew Line, Bernard Spit, and Demarcation Point). Separate excel spreadsheets are provided for discrete water samples, biota stable isotope values, YSI sonde measurements, and HOBO data loggers. A "Metadata" tab is included in each spreadsheet with details about the specific datasets that that they contain.
DOI: 10.15468/dl.5wec6j
title: Occurrence Download

description: A dataset containing 178042 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Germany",
 "TaxonKey is Milvus milvus (Linnaeus, 1758)"
 ]
}

 The dataset includes 178042 records from 307 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0027703-241107131044228/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.18739/a25m62743
title: Understanding the Wave-Driven Circulation and Variability of the Polar Atmosphere through Coordinated Observation, Analysis, and Modeling

description: The goal of this investigation is to understand the wave-driven circulation and variability of the polar atmosphere through an integrated study that combines satellite measurements, lidar measurements, meteorological analyses, and model simulations will be conducted. This study is an international collaboration between investigators at six institutions in Germany, Japan and the United States. An international network of four Rayleigh lidars located in observatories at Andoya, Norway (69°N, 16°E), Chatanika, Alaska (65°N, 147°W), Kangarlussuaq, Greenland (67°N, 51°W) and Kühlungsborn, Germany (54°N, 12°E) provide a chain of measurements from the eastern Arctic to the western Arctic under distinct synoptic regimes (i.e., the Arctic stratospheric vortex, the Aleutian anticyclone, the stratospheric surf-zone). The lidars will yield high-resolution temperature and density measurements that allow characterization of the planetary waves, tides, and gravity waves. The satellite observations yield synoptic-scale temperature measurements of the mesosphere and upper stratosphere while the meteorological soundings and analyses provide synoptic-scale measurements of the troposphere and lower stratosphere. We have three specific goals; i) to extend the scope of current Rayleigh lidar measurements to characterize a wider range of waves than previously measured ii) to combine lower-resolution global data from satellite observations and meteorological analyses with higher-resolution data from Arctic Rayleigh lidar systems to document both the synoptic conditions and wave activity. iii) to investigate the observed wave behavior using a comprehensive general circulation model to understand the wave mean-flow interactions. The proposed activity will provide a comprehensive analysis of the circulation of the Arctic atmosphere that will directly address the following specific studies; coupling and feedbacks between waves and large-scale circulation; the structure; evolution, and variability of polar vortices and anticyclones; links between the middle and lower atmosphere; and atmospheric tele-connections. The study will advance our understanding of wave mean-flow interactions both regionally and globally that is critical for understanding dynamical driving of the circulation and the evolution of the climate. This study will provide data and analyses in support of studies of ozone depletion, stratospheric climate, and long-range horizontal and vertical transport in the Arctic. The observations, analyses and results of this activity will contribute to the CAWSES, CEDAR, SEARCH, and SPARC programs.
DOI: 10.18419/darus-4565
title: Replication Data for: Using Support Effects to Increase the Productivity of Immobilized Ruthenium Hydride Catalysts for the Hydrogenation of CO2

description: Replication data for the paper: Using Support Effects to Increase the Productivity of Immobilized Ruthenium Hydride Catalysts for the Hydrogenation of CO2. Contains NMR and IR data for both the catalyst characterization (before and after catalysis) as well as the reaction NMR spectra and a table with the catalytic data summarized.
DOI: 10.18739/a21v5bd9v
title: Post IPY Middle Atmosphere Temperatures from Rayleigh Lidar in Alaska 2011-2014

description: This data set contains files of individual atmospheric temperature profiles from 40-80 km measured at Poker Flat Research Range (PFRR), Chatanika, Alaska (65.1 N, 147.5 W). The temperature profiles are retrieved from lidar echo data using standard retrieval methods that employ downward data integration under the assumption of hydrostatic equilibrium. The initial temperature at 80 km is taken from the Stratosphere-troposphere Processes And their Role in Climate (SPARC) Reference Atlas. The PFRR data is available as ASCII files at http://wdcvpa.gi.alaska.edu/. The PFRR data is available as NetCDF files at this site. This NetCDF data is identical in retrieval algorithm and format to the data of project "Pan-Arctic Studies of the Coupled Tropospheric, Stratospheric and Mesospheric Circulation"
DOI: 10.18739/a2sb3wz9j
title: RAPID: Impact of Large Scale Greenland Ice Sheet Melting on Glacier Hydrology and Meltwater Geochemistry

description: In 2012, multiple lines of evidence suggest a record release of freshwater from the Greenland ice sheet (GrIS), the largest expanse of glacial ice in the Northern Hemisphere and a major source of meltwater and associated material to the surrounding North Atlantic and Arctic Oceans. Between July 8 and 12, satellite-derived estimates of surface melt increased from 40% to 97% of the ice sheet. This warming received widespread media attention and public interest, yet the scientific community lacks direct observations of meltwater controls on ice sheet movement and meltwater geochemistry for such a large-scale melting event. The overarching goal of this RAPID proposal is to quantify, in short order, the impact of a large-scale melting event on the ice sheet dynamics and meltwater biogeochemistry of a large, land-terminating glacier on the western Greenland margin. RAPID funds will enable the analysis and synthesis of a unique sample set collected during other fieldwork from the Leverett Glacier catchment, a large outlet glacier that discharges through a single proglacial river. Though the focus is on the 2012 episode, the investigators will also analyze samples and GrIS dynamics data from two field seasons (2011- 12), which will aid in interpretation of changes driven by the historic melting event owing to the highly contrasting annual freshwater discharge rates. The investigators will use time-series radiogenic (beryllium-7 and radon-222) and stable isotopes (oxygen and hydrogen), each with unique sources and constant production rates, from the Leverett glacier watershed to differentiate the fractions of meltwater sourced from recent surface snow, glacial ice and delayed flow meltwater. They will also investigate the composition and magnitude of nutrient and metal fluxes released from the subglacial environment and study how these fluxes evolved during July 2012. From 2011-12, parallel ice sheet geophysical data (GPS, satellite imagery) and meltwater biogeochemistry samples (carbon, macro- and micro-nutrients) have been collected by the PI and colleagues from universities in the United Kingdom. The proposed project will fully fund a Ph.D. student, and high school students and undergraduate interns will be recruited to assist with the laboratory aspect of the research. In order to increase the visibility of this project among the general public, the PI and student will co-author an article for the WHOI magazine Oceanus. This publication reaches a wide audience through both print- and web-based editions. Finally, the Ph.D. student will continue to report on the results of this study via an Expedition Blog called "Following the Ice" on Scientific American (http://blogs.scientificamerican.com/expeditions/tag/following-the-ice/). The radon dataset is complete and available for download immediately. The beryllium-7 and water isotope data will be uploaded by August 2015.