cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.18739/a2vt1gq8n
title: Community Level Interaction Program (CLIP) 2-Temp 1 Community data from the Latnjajaure site, Sweden, 1995-2000

description: This dataset contains CLIP 2-Temp 1 Community data from the Latnjajaure site, Sweden in 1995, 1996, 1997, 1999 &amp; 2000. The Community Level Interaction Program (CLIP) data comprises a block in a mesic meadow. For more information, please see the readme file.
DOI: 10.18739/a2r20rx4t
title: Soil temperatures along a transect near Thule Air Base, Greenland, 2012-2013

description: Soil temperatures at approximately 10 cm depth along a 55+ meter long transect near Thule Air Base, Greenland. The transect spans a gradient from wet tundra to polar semi-desert. iButton. IButtons installed in 2012 DOY228 and left in place to measure winter temperature during 2012 and 2013, removed DOY165 in 2013. Temperature collected ever four hours. 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, fractional day of year, temperature in C, fractional year. Temperature resolution is 0.5 C.
DOI: 10.24396/ordar-150
title: AppendixD-ResultsFlux-The_extraterrestrial_dust_accretion_rate_on_Earth_at_ Dome C, Antarctica: a_fresh_look_with_3He-Fénisse

description: Table results giving the He isotopic compositions and total masses deduced by size range of cosmic dust from the CONCORDIA snow
DOI: 10.18739/a2m90240g
title: Soil moisture measurements from a transect and points in a wet sedge meadow near Thule Air Base, Greenland, 2012

description: Soil moisture from a 50+ meter transect and from 21 random points in a wet sedge meadow near Thule Air Base, Greenland. Plots consist of a collar for flux measurements 6" in diameter but moisture measurements were taken outside the plot to minimize disturbance. The transect spans a gradient from wet tundra to drier polar semi-desert. Campbell Scientific Hydrosense II with 12 cm probes. Data collected every few days between DOY 163 and DOY 222. Along the transect measurements were made every five meters. Three reps per plot or position on the transect..csv, comma-delimited text. Data columns are: day of year, plot, rep, volumetric water content (%).
DOI: 10.18739/a2gh9b97n
title: Soil moisture measurements from a transect and points in a wet sedge meadow near Thule Air Base, Greenland, 2013

description: Soil moisture from a 50+ meter transect and from 21 random points in a wet sedge meadow near Thule Air Base, Greenland. Plots consist of a collar for flux measurements 6" in diameter but moisture measurements were taken outside the plot to minimize disturbance. The transect spans a gradient from wet tundra to drier polar semi-desert.Campbell Scientific Hydrosense II with 12 cm probes. Data collected ca. every other day between DOY 168 and DOY 222. Along the transect measurements were made every five meters. Three reps per plot or position on the transect. MS Excel (.xls) with two worksheets, one for the plots, the other for the transect. Data columns in both are: day of year, plot, rep, volumetric water content (%), time period of reflectance - raw data from the instrument.
DOI: 10.18739/a2bv79w5b
title: Carbon and nitrogen content of Salix arctica leaf tissue in plots in response to a snow fence, Thule Air Base, Greenland, 2012

description: Salix leaf tissue carbon (C) and nitrogen (N) and isotopes thereof in various plots representing high snow deposition and ambient snow in response to a snow fence. Snow fence was installed in 2003, gas exchange measured in 2012. Deep snow plots had approximately 74 cm of snow covering them. Ambient snow plots were 23 cm deep. Analyzed by IRMS, U. Alaska-Anchorage. Samples were collected six days during 2012. Samples are leaves of Salix arctica, ground to a fine powder using a bead-beater. Known mass of sample was loaded into tin capsules, combusted to CO2, and the gas passed to the mass spec. csv, comma-delimited text. Data columns are: 15N of tissue, 13C of tissue, N content of tissue (%), C content of tissue (%C), species, day of year sample was collected, treatment - +snow or ambient snow depth.
DOI: 10.18739/a2736m32d
title: All clean datasets that were submitted by March 15 from the Boulder Workshop, 2001

description: This dataset contains all of the clean datasets that were submitted by March 15 from the Boulder Workshop, 2001. Note: upon ordering this data, all of the data files will be included.
DOI: 10.18739/a23b5w88n
title: Isotopic composition of water extracted from soils and stems collected in plots in response to a snow fence, Thule Air Base, Greenland, 2012

description: 2H and 18O isotopic composition of water extracted from soils and stems. Samples collected in various plots representing high snow deposition and ambient snow in response to a snow fence. Snow fence was installed in 2003, samples collected in 2012 Deep snow plots had approximately 74 cm of snow covering them. Ambient snow plots were 23 cm deep. Picarro L2130 18O/2H CRDS w/IM induction module, manual injection of samples w/o vaporizer. Samples were collected six days during 2012. Samples are analyzed by placing a a section of stem in a metal clip, or a soil sample in a metal tube and sealing the sample in a glass vial. The IM module then vaporizes water in the sample and passes the gas to the CRDS. Three reps of every sample were measured but only the last used to minimize memory effects. Values are relative to Mean Ocean Water VSMOW standard, instrument working standards were VSMOW and GISP. MS Excel (.xls). Worksheets for different dates in 2012. All worksheets have the same columns: type of analysis, day of year for sample collection, sample type, rep, depth for soil sample, 18O, 2H. Plots 1-3 are +snow, plots 4-6 are ambient snow.
DOI: 10.18739/a2zk55n3n
title: Community Level Interaction Program (CLIP) 4-Control 3 Community data, Latnjajaure site, Sweden, 1995-2000

description: This dataset contains CLIP 4-Control 3 Community data from the Latnjajaure site, Sweden in 1995, 1996, 1997, 1999 &amp; 2000. The Community Level Interaction Program (CLIP) data comprises a block of poor, dry heath. For more information, please see the readme file.
DOI: 10.18739/a2tt4ft9w
title: Leaf-level gas exchange of Salix arctica in plots in response to a snow fence, Thule Air Base, Greenland, 2012

description: Leaf-level gas exchange of Salix arctica in various plots representing high snow deposition and ambient snow in response to a snow fence. Snow fence was installed in 2003, gas exchange measured in 2012. Deep snow plots had approximately 74 cm of snow covering them. Ambient snow plots were 23 cm deep. LiCor 6400 w/ 2-cm2 fluorometer chamber. Samples were collected six days during 2012. Measurement parameters were: light 1250 umol m-2 s-1, 400 ul l-1 CO2 in chamber. Measurements made approximately 2 hours either side of solar noon. .csv, comma-delimited text. Data are standard output from 6400 with the addition of day of year, a plot identifier, and a rep identifier. Plots 1-3 are +snow, plots 4-6 are ambient snow.
DOI: 10.18739/a2q23r15g
title: Isotopic composition of precipitation at Thule Air Base, Greenland, 2012

description: 2H and 18O isotopic composition of precipitation at Thule Air Base, Greenland. Picarro L2130 18O/2H CRDS w/IM induction module, manual injection of samples w/o vaporizer. Snow and rain water collected during various precipitation events in summer 2012 and snow pack water from May 2012. Samples are analyzed by placing a sample on filter paper, enclosing the filter paper in a metal clip, and sealing the sample in a glass vial. The IM module then vaporizes the sample and passes the gas to the CRDS. Three reps of every sample were measured but only the last used to minimize memory effects. Values are relative to Mean Ocean Water VSMOW standard, instrument working standards were VSMOW and GISP. Two worksheets, "all data" indicates raw machine output of all parameters and every measurement. Reduced mean values for 18O and 2h with identification. Columns are: date and time of analysis, date sample was collected, location of sample or standard used, type of sample, further description such as time of day or depth in snow pack, 18O (‰), 2H (‰).
DOI: 10.18739/a2k931726
title: Meteorological data from datalogger and sensors near 21 plots at Thule Air Base, Greenland, 2013

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: 10.18739/a2fn10s9s
title: Press and Pulse Program (PAPP) Control 3 Community data, Latnjajaure site, Sweden, 1995-1998

description: This dataset contains PAPP Cont 3 Community data from the Latnjajaure site, Sweden in 1995, 1996, 1997 &amp; 1998. The Press and Pulse Program (PAPP) experiment is comprised of four replicate blocks, each of which has four plots. These plots were subject to the Control 3 treatment. For more information, please see the readme file.
DOI: 10.18739/a29w0906j
title: Soil temperatures at 21 plots randomly positioned within a wet sedge meadow near Thule Air Base, Greenland, 2013

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/a2639k625
title: Normalized difference vegetation index (NDVI) of 21 plots randomly positioned within a wet sedge meadow near Thule Air Base, Greenland, 2013

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/a22b8vc8d
title: Community Level Interaction Program (CLIP) 2-Temperature 1 Community data, Latnjajaure site, Sweden, 1995-2000

description: This dataset contains CLIP 2-Temperature 1 Community data from the Latnjajaure site, Sweden in 1995, 1996, 1997, 1999, and 2000. The Community Level Interaction Program (CLIP) data comprises a block in a mesic meadow. For more information, please see the readme file.
DOI: 10.18739/a2xk84r3d
title: Community Level Interaction Program (CLIP) 3-Temperature 2 Community data, Latnjajaure site, Sweden, 1995-2000

description: This dataset contains CLIP 3-Temperature 2 Community data from the Latnjajaure site, Sweden in 1995, 1996, 1997, 1999, and 2000. The Community Level Interaction Program (CLIP) data comprises a block of poor, dry heath. For more information, please see the readme file.
DOI: 10.18739/a2st7dx9n
title: Elemental and chemical measurements of the North Greenland Eemian Ice Drilling core, NEEM-2011-S1, collected in summer 2011 near the NEEM deep drilling site in northwest Greenland

description: A continuous ice core analytical system was used to analyze the ~410 m NEEM-2011-S1 ice core collected in summer 2011 near the NEEM deep drilling site in NW Greenland. The core was analyzed for a broad range of elements and chemical species.
DOI: 10.18739/a2p26q46q
title: Periodic plant measures of species in Arctic System Science (ARCSS) plots at Barrow and Atqasuk, Alaska, 2012-2014

description: These files contain data representing the periodic plant measures of species within each plot in a text tab delimited format. The data presented are seasonal growth of graminoids (length of leaf and length of inflorescence) and seasonal flowering of all species (number of inflorescences in flower within a plot), collected weekly during the summers of 2012-20XX for a subset of 30 grid plots at two sites (Barrow ARCSS grid and Atqasuk ARCSS grid).
DOI: 10.18739/a2jd4pq3x
title: Periodic plant measures of species in Arctic System Science (ARCSS) plots at Barrow and Atqasuk, Alaska, 2012-2014

description: These files contain data representing the periodic plant measures of species within each plot in a text tab delimited format. The data presented are seasonal growth of graminoids (length of leaf and length of inflorescence) and seasonal flowering of all species (number of inflorescences in flower within a plot), collected weekly during the summers of 2012-20XX for a subset of 30 grid plots at two sites (Barrow Arctic System Science (ARCSS) grid and Atqasuk ARCSS grid).
DOI: 10.18739/a28w3835t
title: Photographs of every plot within the Networked Info-mechanical Systems (NIMS) grid in Barrow, Alaska, 2011

description: Photographs of every plot within the Networked Info-mechanical Systems (NIMS) grid in Barrow, Alaska were taken once on August 2nd for summer 2011. Photographs were taken directly above each plot using a push-cart system mounted onto the NIMS cables. Two identical point and shoot digital cameras were triggered simultaneously in order to capture the entire plot. The "BluePanasonic" camera captures one half of each plot and the "RedPanasonic" camera captures the other half of each plot. Stitching of the images was not completed for any plot but can easily be accomplished using one of many software packages. These clearly depict what vegetation type is present at every meter throughout the NIMS grid.
DOI: 10.18739/a2542j910
title: Elemental and chemical measurements of the Summit 2010 ice core collected in summer 2011 near the Greenland Ice Sheet Project Two (GISP2) deep drilling site in central Greenland

description: A continuous ice core analytical system was used to analyze the ~87 m Summit_2010 ice core collected in summer 2011 near the GISP2 deep drilling site in central Greenland. The core was analyzed for a broad range of elements and chemical species.
DOI: 10.18739/a21c1tg77
title: Elemental and chemical measurements of the ACT11D ice core collected in summer 2011 near the Raven Training site (Dye 2) in southwest Greenland

description: A continuous ice core analytical system was used to analyze the ~300 m ACT11D ice core collected in summer 2011 near the Raven Training site(Dye 2) in SW Greenland. The core was analyzed for a broad range of elements and chemical species.
DOI: 10.18739/a2wm13v27
title: Semi-structured interviews with Iñupiaq community elders, Wainwright, Alaska, 2013-2014

description: Semi-structured interviews with Community Elders regarding: 1) The environmental and social changes they have already observed in their lifetimes and their hopes and fears for the future in the context of incoming industrial development and the potential for more environmental and social changes to come (both positive and negative). 2) Whether or not they felt that their community was currently in the best position possible to both take advantage of the opportunities as well as face the challenges that such change could represent and whether they had any suggestions for improvements in terms of local decision-making processes, etc. 3) About the knowledge and practices they felt were most needed to be documented and communicated to outside decision-makers. Participants were also asked to identify some of the cultural values and traditional practices that they felt were critically important to pass on to the youth within their own Tribe. 4) Overall, what they felt was the most important thing that their community could do to embrace the changes to come while still maintaining the core values of their culture. Emphasis in these interviews were put on their perspectives as knowledgeable and respected elders, especially when it came to offering their critiques and suggestions about present conditions and future courses of action for their community. The structure of the interviews was relatively loose to allow the elders to freely share their recollections from the past and to generally speak about whatever they most preferred to discuss.
DOI: 10.18739/a2n58cm89
title: NOA-Peru high resolution laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) results, Peru, 2013-2014

description: High resolution laser ablation inductively coupled mass spectrometry results.
DOI: 10.18739/a2hd7nt5n
title: National Ice Center Arctic sea ice charts and climatologies in gridded format, 1972-2004

description: The U.S. National Ice Center (NIC) is an inter-agency sea ice analysis and forecasting center comprised of Department of Commerce/National Oceanic and Atmospheric Administration (NOAA), Department of Defense/U.S. Navy, and Department of Homeland Security/U.S. Coast Guard components. Since 1972, NIC has produced Arctic and Antarctic sea ice charts. This data set is an Arctic sea ice concentration climatology derived from the NIC weekly or biweekly operational ice chart time series. The charts used in the climatology are from 1972 through 2004, and the monthly climatology products are median, maximum, minimum, first quartile, and third quartile concentrations, as well as frequency of occurrence of ice at any concentration for 33 year, 10 year, and 5 year periods. These climatologies and the charts from which they are derived are provided in 25 km EASE-Grid (the NSIDC Equal-Area Scalable Earth Grid/gridded binary). Ice extent can be derived from concentration by summing the number of equal area EASE-Grid cells. GIF browse files are also provided. The climatologies are also made available in a Geographical Information System (GIS) compatible format. NIC charts are produced through the analyses of available in situ, remote sensing, and model data sources. They are generated primarily for mission planning and safety of navigation. NIC charts generally show more ice than do passive microwave derived sea ice concentrations, particularly in the summer when passive microwave algorithms tend to underestimate ice concentration. The record of sea ice concentration from the NIC series is believed to be more accurate than that from passive microwave sensors, especially from the mid-1990s on (see references in the documentation), but it lacks the consistency of some passive microwave time series.
DOI: 10.18739/a2cn6z10f
title: Surface and underwater irradiance timeseries from the Stefansson Sound, Beaufort Sea, Alaska, 1984-2018.

description: In the nearshore Alaskan Beaufort Sea, discrete, isolated rocky habitats harbor biological communities that are unusually diverse for the region, with markedly different fauna and flora than found in the surrounding soft sediment areas. The boulder fields also support tightly linked food webs, with connections to higher trophic levels such as fishes and seals. These systems are highly vulnerable to disturbances, including sedimentation from human activities and coastal erosion, fluctuations in salinity from seasonal river discharge, and temperature increases from heat influx originating at lower latitudes and from atmospheric warming. Spatial isolation of these boulder fields and the slow development of benthic communities limit ecosystem recovery from disturbance. To assess the possible ecological effects of such environmental disturbances, this field program undertook an investigation of the biological communities and environmental conditions across the Stefansson Sound Boulder Patch, the largest of the Beaufort Sea nearshore boulder fields. 
 The overlying objectives of this program were to: 1) monitor incident and in situ photosynthetically active radiation (PAR), salinity, temperature, currents, and pH to define the spatial variability in annual kelp productivity and biomass; 2) characterize benthic community structure changes across environmental gradients in the Boulder Patch and 3) collect annual measurements of kelp growth in the Boulder Patch to provide a nearly continuous record of kelp growth since 1976. Within and in addition to these objectives, individual research projects were completed, using experimental approaches, timeseries analysis and historical data to gain an in depth understanding of mechanisms (past and present) that resulted in the Boulder Patch community we see today and how this community may vary in future conditions.
 These datasets here result from ecosystem studies and monitoring that took place from 1976 to 2018 at multiple sites in Stefansson Sound, Alaska.
 To understand spatiotemporal variability in underwater light environment, photosyntheically active radiation (PAR, 400-700 nanometers) was measured from moorings on the benthos at multiple locations in Stefansson Sound, Alaska using LICOR spherical quantum sensors, and at an adjacent site on land for incident PAR using LICOR cosine sensors. The overall dataset spans from 1984 to 2018, though there are gaps that vary from days to multiple years, depending on the location.