cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.18739/a2sj19s07
title: Estimates of soil nitrogen availability in three contrasting white spruce habitats near the Arctic treeline: riverside terrace, forest and treeline, Alaska, June to August 2011

description: Estimates of soil nitrogen availability between June 28 and August 9, 2011 in three contrasting white spruce habitats near the Arctic treeline: riverside terrace, forest and treeline.
DOI: 10.18739/a2ns0kz7z
title: Estimates of fine root production made using minirhizotrons on weekly intervals at the terrace, forest and treeline sites, Alaska, 2011

description: Estimates of fine root production made using minirhizotrons on weekly intervals during the 2011 growing season beneath trees growing at the terrace, forest and treeline sites. Units are mm2 of projected fine root area per minirhizotron. The minirhizotrons were installed in September of 2009 and the understory vegetation growing above them was removed by hand on weekly intervals in 2010 and 2011.
DOI: 10.14469/hpc/11548
title: IR data for Compound 62.

description: IR Data for Bis(aqua) tris((4-(ethoxycarbonyl)-1-phenyl-1H-pyrazol-5-yl)oxy)lanthanum (62)
DOI: 10.18739/a2j38kj4b
title: Measurements of annual branch extension growth on high and low branches of trees growing at the terrace, forest and treeline sites, Alaska, 2010-2012

description: Measurements of annual branch extension growth during 2010-2012 on high and low branches of trees growing at the terrace, forest and treeline sites. Data are for branches that grew.
DOI: 10.14469/hpc/11612
title: IR Data for Compound 38.

description: IR Data for (m-O)-Di-[cyclopentadienyl-bis((4-(ethoxycarbonyl)-1-phenyl-1H-pyrazol-5-yl)oxy)zirconium] (38)
DOI: 10.14469/hpc/11655
title: IR Data for Compound 49.

description: IR data for ((4-(Ethoxycarbonyl)-1-(4-methoxybenzyl)-1H-pyrazol-5-yl)oxy)zinc polymer (49)
DOI: 10.18739/a24t6f43k
title: Hourly estimates of sap flow during the snow-free seasons of 2010-2012 for trees growing at the terrace, forest and treeline sites in Alaska

description: Hourly estimates of sap flow during the snow-free seasons of 2010-2012 for trees growing at the terrace, forest and treeline sites. Units are L dm-2 sapwood area hr-1. Measurements were made using Dynamax thermal dissipation probes (TDP 30). Probes were installed such that the heater was at a depth of 2.5 cm and the thermocouples were 1.0 cm beneath the bark.
DOI: 10.18739/a2125q994
title: Surface Mass Balance and Snow Depth on Sea Ice Working Group (SUMup) snow density subdataset, Greenland and Antartica, 1950-2018

description: This dataset includes snow density measurements from both hemispheres. This dataset is a community effort to distribute easy to use in-situ data to improve surface mass balance modeling and remote sensing efforts. This dataset is a compilation of work from many individual researchers. When using this dataset please cite both the individual researchers who provided the data as listed in the Citation field as well as this dataset. This dataset includes snow density measurements over both ice sheets, ice caps and snow on sea ice. It excludes seasonal snow on land measurements. The dataset contains over 2,200,000 point measurements of density at different depths. The measurement methods include different sized density cutters (generally from 100 - 1000 cc) used in snow pits, ice core sections, neutron-density methods, X-ray microfocus computer tomography, Gamma-ray attenuation, pycnometers, optical televiewer (OPTV) borehole logging, and Density-and-conductivity mixed permittivity (DECOMP).The majority of the observations (~72%) come from Greenland ice cores or snow pits. Antarctic data comprises ~28% of the snow density subdataset and is predominately from ice cores. The depth of the density measurements are recorded using two different methods, either the top and bottom depth or a midpoint depth. Fields of the data include the date taken, latitude, longitude, start depth, stop depth, midpoint depth, density, error, elevation, method, and associated citation.
DOI: 10.14469/hpc/12306
title: Crystal structure data for Compound 73

description: Full crystal structure data for 73
DOI: 10.18739/a2rj48w1g
title: CRUTEM4 (Climatic Research Unit Temperature) Arctic Land Air Temperature, 1850-2020

description: These datasets have been developed by the Climatic Research Unit (University of East Anglia) in conjunction with the Hadley Centre (UK Met Office), apart from the sea surface temperature (SST) dataset which was developed solely by the Hadley Centre. These datasets will be updated at roughly monthly intervals into the future. Hemispheric and global averages as monthly and annual values are available as separate files.
 The gridded data are based on an archive of monthly mean temperatures provided by more than 5500 weather stations distributed around the world. Each station temperature is converted to an anomaly from the 1961-90 average temperature for that station, and each grid-box value is the mean of all the station anomalies within that grid box. As well as the mean anomaly, estimates are made of the uncertainties arising from thermometer accuracy, homogenisation, sampling grid boxes with a finite number of measurements available, large-scale biases such as urbanisation and estimation of regional averages with non-complete global measurement coverage.
DOI: 10.18739/a2mw28f9z
title: CRUTEM4 (Climatic Research Unit Temperature) Global Land Air Temperature, 1850-2020

description: These datasets have been developed by the Climatic Research Unit (University of East Anglia) in conjunction with the Hadley Centre (UK Met Office), apart from the sea surface temperature (SST) dataset which was developed solely by the Hadley Centre. These datasets will be updated at roughly monthly intervals into the future. Hemispheric and global averages as monthly and annual values are available as separate files.
 The gridded data are based on an archive of monthly mean temperatures provided by more than 5500 weather stations distributed around the world. Each station temperature is converted to an anomaly from the 1961-90 average temperature for that station, and each grid-box value is the mean of all the station anomalies within that grid box. As well as the mean anomaly, estimates are made of the uncertainties arising from thermometer accuracy, homogenisation, sampling grid boxes with a finite number of measurements available, large-scale biases such as urbanisation and estimation of regional averages with non-complete global measurement coverage.
DOI: 10.15468/dl.e5ukp9
title: Occurrence Download

description: A dataset containing 28 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Dapsa denticollis (Germar, 1817)"
 ]
}

 The dataset includes 28 records from 11 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0027840-241107131044228/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.18739/a2h41jn6m
title: Danish Meteorological Institute Historical Climate Data Collection Greenland Ice Sheet, 1784-2017

description: This report contains the available DMI historical data collection 1784-2017 for Greenland, including observations (atmospheric pressure) and long daily, monthly and annual series of station based data.
 The data collection comprises observational, daily, monthly and annual blended data sets with a long record (blended station data series) and also daily station data series (single station data series; not blended). A description of the blending and other metadata can be found in Appendices.
 All available information on station positions and relocations are included in Appendices. Other metadata as descriptions of the construction of data sets and data series behind, the introduction of the Hell- mann rain gauge, the introduction of Stevenson screens (thermometer screen), information con- cerning atmospheric pressure, additional notes on monthly values, notes on multiple regressions, new corrections etc. can also be found in Appendices.
 A compiled set of various metadata up to 1996, covering aspects such as station position and relocations, change of instrumentation and observation units etc., that is essential to know when homogenizing time series of climate data can be found in DMI Technical Report 03-24. This publication contains information concerning a major part of the stations included in this report.
DOI: 10.18739/a2cc0tv10
title: European Space Agency (ESA) Global Snow Water Equivalent Monitoring, 1979-2013

description: The efforts of the European Space Agency (ESA) Data User Element (DUE) funded GlobSnow project has resulted in two new hemispherical records of snow parameters intended for climate research purposes. The dataset contains satellite-retrieved information on snow water equivalent (SWE) extending 34 years. The record on snow water equivalent is produced using a combination of passive microwave radiometer and ground-based weather station data, spanning years 1979 to 2013.
 The GlobSnow SWE record, based on methodology by Pulliainen (Pulliainen 2006, Takala et al. 2011) utilizes a data-assimilation based approach combining space-borne passive radiometer data (SMMR, SSM/I and SSMIS) with data from ground-based synoptic weather stations. The satellite sensors utilized provide data at K- and Ka-bands (19 GigaHertz and 37 GigaHertz respectively) at a spatial resolution of approximately 25 kilometers (km). The SWE record is produced on a daily, weekly and monthly basis. SWE information is provided for terrestrial non-mountainous regions of Northern Hemisphere, excluding glaciers and Greenland.
DOI: 10.6084/m9.figshare.27888930
title: <b>Effect</b><b> </b><b>of</b><b> </b><b>Warm</b><b> </b><b>Stimulation</b><b> </b><b>on</b><b> </b><b>Jacobson's</b><b> </b><b>Nerve:</b><b> </b><b>Enhancing</b><b> </b><b>Intestinal Peristalsis through Non-Electrical Modulation</b>

description: Data used in the journal: Effect of Warm Stimulation on Jacobson's Nerve: Enhancing Intestinal Peristalsis through Non-Electrical Modulation.
DOI: 10.6084/m9.figshare.27888930.v1
title: <b>Effect</b><b> </b><b>of</b><b> </b><b>Warm</b><b> </b><b>Stimulation</b><b> </b><b>on</b><b> </b><b>Jacobson's</b><b> </b><b>Nerve:</b><b> </b><b>Enhancing</b><b> </b><b>Intestinal Peristalsis through Non-Electrical Modulation</b>

description: Data used in the journal: Effect of Warm Stimulation on Jacobson's Nerve: Enhancing Intestinal Peristalsis through Non-Electrical Modulation.
DOI: 10.18739/a27m0416j
title: MERRA-2 tavg1_2d_lnd_Nx: 2d,1-Hourly,Time-Averaged,Single-Level,Assimilation,Land Surface Diagnostics V5.12.4, 1980-01-01 to 2020-10-31

description: The Modern-Era Retrospective analysis for Research and Applications version 2 (MERRA-2) is a NASA atmospheric reanalysis for the satellite era using the Goddard Earth Observing System Model, Version 5 (GEOS-5) with its Atmospheric Data Assimilation System (ADAS), version 5.12.4. The MERRA project focuses on historical climate analyses for a broad range of weather and climate time scales and places the NASA EOS suite of observations in a climate context. 
 MERRA-2 was initiated as an intermediate project between the aging MERRA data and the next generation of Earth system analysis envisioned for the future coupled reanalysis. Without a substantial investment to update MERRA's data assimilation routines, the system lacked the capability to analyze the latest observations. In addition, numerous advances to the GEOS5 system had been implemented since freezing the MERRA system in 2008. Therefore, a new full reanalysis integration was undertaken. MERRA-2 covers the period 1980-present, continuing as an ongoing climate analysis as resources allow.
DOI: 10.18739/a2028pd9w
title: National Centers for Environmental Prediction (NCEP) / National Center for Atmospheric Research (NCAR) Reanalysis 1, 1948-Present

description: The National Centers for Environmental Prediction (NCEP) / National Center for Atmospheric Research (NCAR) Reanalysis 1 project is using a state-of-the-art analysis/forecast system to perform data assimilation using past data from 1948 to the present. A large subset of this data is available from Physical Sciences Laboratory (PSL) in its original 4 times daily format and as daily averages. However, the data from 1948-1957 is a little different, in the regular (non-Gaussian) gridded data. That data was done at 8 times daily in the model, because the inputs available in that era were available at 3 Zulu (Z), 9Z, 15Z, and 21Z, whereas the 4x daily data has been available at 0Z, 6Z, 12Z, and 18Z. These latter times were forecasted and the combined result for this early era is 8x daily. The local ingestion process took only the 0Z, 6Z, 12Z, and 18Z forecasted values, and thus only those were used to make the daily time series and monthly means here.
DOI: 10.18739/a2v97zs50
title: Normalized Difference Vegetation Index-3rd generation (NDVI) using the Global Inventory Monitoring and Modeling System (GIMMS) 1981-2015

description: Normalized Difference Vegetation Index-3rd generation (NDVI) using the Global Inventory Monitoring and Modeling System (GIMMS): Vegetation indices are radiometric measures of photosynthetically active radiation absorbed by chlorophyll in the green leaves of vegetation canopies and are therefore good surrogate measures of the physiologically functioning surface greenness level of a region. For 30 years, Compton J. Tucker created the NDVI time series within the framework of the Global Inventory Monitoring and Modeling System (GIMMS) project. He carefully assembled it from different Advanced Very High Resolution Radiometer (AVHRR) sensors and accounting for various deleterious effects, such as calibration loss, orbital drift, volcanic eruptions, etc. The latest version of the GIMMS NDVI data set spans the period July 1981 to December 2015 and is termed NDVI3g (third generation GIMMS NDVI from AVHRR sensors).
DOI: 10.18739/a2qn5zc4k
title: Soil properties in alpine tundra, Kluane Lake, Yukon Territory, Canada (2015-2018)

description: In this 4-year study we experimentally manipulated shrub presence (shrub present or removed) and litter quantity (none, natural abundance, and 2x natural abundance) in a fully factorial design. We examined a number of response variables including; physical properties (soil temperature, soil moisture, photosynthetically active radiation (PAR) and pH of both organic and mineral soil layers), nutrients (available nutrients (ammonium (NH4+), nitrate (NO3-), phosphate (PO43-)), extractable organic carbon (EOC), extractable total nitrogen (ETN), and soil total %C and %N), and microbial processes (microbial biomass (microbial biomass carbon (MBC), microbial biomass nitrogen (MBN), and microbial biomass phosphate (MBP)), extracellular enzyme (exo-enzyme) activity, nitrogen mineralization rates (N-Mineralization), and soil respiration (root + microbial respiration)). All soil and ecosystem sampling occurred during the growing season (June – August) of 2015 – 2018 with the exception of soil temperature, which was recorded year round.
DOI: 10.18739/a2kw57k19
title: Seasonal Active Layer Depth from the Mobile Instrumented System Platform (MISP) and the Circumpolar Active Layer Monitoring (CALM) grids in Barrow and Atqasuk, Alaska 2020

description: Active layer depth measurements were collected during the 2020 growing season at each Circumpolar Active Layer Monitoring (CALM) grid subset plot (30) and at each Mobile Instrumented System Platform (MISP). Both of these grids are located at Utqiaġvik (formerly Barrow), Alaska as well as in Atqasuk, Alaska. 
 For CALM measurements, at each plot two active layer depth measurements were acquired, the date, start and end times, and the people present were also recorded. Active layer depth measurements were taken outside of every plot on the northeastern most corner in order to reduce disturbance of vegetation.
 For MISP measurements, at each grid meter two active layer depth measurement were acquired, the date, start and end times, and the people present were also recorded. Active layer depth measurements were taken on the north side of the grid in order to reduce disturbance of vegetation.
 These measurements are part of the Arctic Observing Network (AON) - International Tundra Experiment (ITEX) initiative and help to document seasonal changes in surface moisture and structure at high spatial scales. 
 Special note on COVID-19 impact: 2020 summer field work was restricted due to COVID-19. Travel was halted prompting field work to be coordinated remotely. Field observations were limited and those that occurred were spread across multiple days and had missing data points that reduce their utility. Despite 3 of 7 complete scheduled datasets, we consider the basic field observations a success because we received at least one complete set of field observations from each site.
DOI: 10.18739/a2g44hr6c
title: Seasonal Soil Moisture from the Mobile Instrumented System Platform (MISP) and the Circumpolar Active Layer Monitoring (CALM) grids in Barrow and Atqasuk, Alaska 2020

description: Seasonal soil moisture measurements were collected during 2020 growing season at each Circumpolar Active Layer Monitoring (CALM) grid subset plot (30) and at each Mobile Instrumented System Platform (MISP). Both of these grids are located at Utqiaġvik (formerly Barrow), Alaska as well as in Atqasuk, Alaska.
 For CALM measurements, at each plot one soil moisture measurement was acquired, the date, start and end times, and the people present were also recorded. Soil moisture measurements were taken outside of every plot on the northeastern most corner in order to reduce disturbance of vegetation.
 For MISP measurements, at each grid meter one soil moisture measurement was acquired, the date, start and end times, and the people present were also recorded. Soil moisture measurements were taken on the north side of the grid in order to reduce disturbance of vegetation.
 These measurements are part of the Arctic Observing Network (AON) - International Tundra Experiment (ITEX) initiative and help to document seasonal changes in surface moisture and structure at high spatial scales.
 Special note on COVID-19 impact: 2020 summer field work was restricted due to COVID-19. Travel was halted prompting field work to be coordinated remotely. Field observations were limited and those that occurred were spread across multiple days and had missing data points that reduce their utility. Despite 3 of 7 complete scheduled datasets, we consider the basic field observations a success because we received at least one complete set of field observations from each site.
DOI: 10.18739/a2bc3sz1r
title: Seasonal Soil Temperature from the Mobile Instrumented System Platform (MISP) and the Circumpolar Active Layer Monitoring (CALM) grids in Barrow and Atqasuk, Alaska 2020

description: Seasonal soil temperature measurements were collected during 2020 growing seasons at each Circumpolar Active Layer Monitoring (CALM) grid subset plot (30) and at each Mobile Instrumented System Platform (MISP). Both of these grids are located at Utqiaġvik (formerly Barrow), Alaska as well as in Atqasuk, Alaska.
 For CALM measurements, at each plot one temperature measurement was acquired, the date, start and end times, and the people present were also recorded. Soil temperature measurements were taken outside of every plot on the northeastern most corner in order to reduce disturbance of vegetation.
 For MISP measurements, at each grid meter one soil temperature measurement was acquired, the date, start and end times, and the people present were also recorded. Soil temperature measurements were taken on the north side of the grid in order to reduce disturbance of vegetation.
 These measurements are part of the Arctic Observing Network (AON) - International Tundra Experiment (ITEX) initiative and help to document seasonal changes in surface moisture and structure at high spatial scales.
 Special note on COVID-19 impact: 2020 summer field work was restricted due to COVID-19. Travel was halted prompting field work to be coordinated remotely. Field observations were limited and those that occurred were spread across multiple days and had missing data points that reduce their utility. Despite 3 of 7 complete scheduled datasets, we consider the basic field observations a success because we received at least one complete set of field observations from each site.
DOI: 10.18739/a26m3347s
title: Seasonal Water Table Depth (WTD) from the Mobile Instrumented System Platform (MISP) and the Circumpolar Active Layer Monitoring (CALM) grids in Barrow and Atqasuk, Alaska 2020

description: Seasonal water table depth measurements were collected during 2020 growing seasons at each Mobile Instrumented System Platform (MISP) located at Utqiaġvik (formerly Barrow), Alaska as well as in Atqasuk, Alaska.
 If a uniform representation of the water table within each plot was visible, then a WTD tube was placed there to measure the change in water table throughout the season. One water table depth measurement was acquired, the date, start and end times, and the people present were also recorded, at alternating grid meters. Water table depth was taken on the north side of the grid at each WTD tube in order to reduce disturbance of vegetation.
 These measurements are part of the Arctic Observing Network (AON) - International Tundra Experiment (ITEX) initiative and help to document seasonal changes in surface moisture and structure at high spatial scales.
 Special note on COVID-19 impact: 2020 summer field work was restricted due to COVID-19. Travel was halted prompting field work to be coordinated remotely. Field observations were limited and those that occurred were spread across multiple days and had missing data points that reduce their utility. Despite 3 of 7 complete scheduled datasets, we consider the basic field observations a success because we received at least one complete set of field observations from each site.
DOI: 10.18739/a2td9n88g
title: Ground temperatures across Goldstream Valley, Fairbanks, Alaska (2015-2020)

description: Ground temperature was measured at 8 sites located in different landscape settings across Goldstream Valley, Fairbanks, Alaska between 2015 and 2020 to characterize the temperature regime in the upper 1.5 meters of the ground in the discontinuous permafrost area. Air temperature and the temperature at the ground surface and at three additional depths (typically at 0.5, 1.0, and 1.5 meter depth) were measured every two hours and averaged daily. These data allow determination of the permafrost spatial distribution in this area, the permafrost stability, and the reaction of permafrost to climatic warming observed during the last 5 years. The used ground temperature profiler is consisted of the one U12-006 or UX120-006M 4-channels HOBO data loggers and four TMCx-HD thermistor temperature sensors (Onset Computer Corp, Cape Cod, Massachusetts) installed at different depths between the ground surface and 1.5 meter depth (Cable et al., 2016).
DOI: 10.18739/a29c6s21x
title: Supporting data for the Near-Infrared Emitting and Reflectance-Monitoring Dome, 2015-2017

description: This dataset contains all data used to generate the figures in The Cryosphere manuscript “Measuring Snow Specific Surface Area with 1.30 and 1.55 micro-meter Bidirectional Reflectance Factors,” by Adam Schneider, Mark Flanner, and Roger De Roo. These data support the theory, calibration, and application of the Near-Infrared Emitting and Reflectance Monitoring Dome (NERD), an instrument engineered to rapidly retrieve surface snow specific surface area in the field. Note that this deposit includes a microCT scan database for natural snowfall samples collected in New Hampshire during 2015-2017, comprised of raw tiff files as well as reconstructions, binarized reconstructions, and some 3D model reconstructions.
 Running python scripts generally require that the following packages are installed: NumPy, SciPy, Matplotlib, Pandas, and ipdb (for debugging).