cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.18739/a27w67662
title: Arctic Nearshore Impact Monitoring in the Development Area (ANIMIDA) III: The Boulder Patch and other Kelp Communities in the Development Area. Ecosystem monitoring data collected from the Boulder Patch, Stefansson Sound, Alaska (1976-2018).

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 site in Stefansson Sound, Alaska.
DOI: 10.18739/a2445hd27
title: Continuous Greenland Ice Sheet Project 2 glaciochemical measurements, Greenland Ice Sheet, 2019.

description: The overall goal of the project is to use sophisticated atmospheric models together with ice-core records the to improve understanding of variations in past climate, including during the last glacial period. To provide state-of-the-art aerosol and other ice-core records representative of the last glacial, continuous, high-depth-resolution measurements were made on ~104 meters(m) of archived Greenland Ice Sheet Project 2 (GISP2) ice spanning Dansgaard-Oeschger events 10, 11, 12. The measurements were made using the unique, well-established continuous ice core analytical system at the Desert Research Institute in Reno, Nevada (NV) during December, 2017, with data processing and strict quality control/quality assurance procedures completed in January, 2019. The analytical system consists of a broad range of instruments including two Element2, Inductively Coupled Plasma Mass Spectrometers operating in parallel.
DOI: 10.18739/a20c4sk8g
title: Supplementary Particle Optical Property Data for "Aerosol radiative forcing from the 2010 Eyjafjallajökull volcanic eruptions" 2013 - 2014

description: Although the 2010 volcanic eruptions of Eyjafjallajokull did not exert a large climate forcing, several features of their emissions favored weaker aerosol cooling or stronger warming than commonly attributed to volcanic events. These features include a high ratio of fine ash to sulfur dioxide, occurrence near reflective surfaces exposed to strong insolation, and the production of very little stratospheric sulfate. We derive plausible ranges of optical properties and top-of-atmosphere direct radiative forcing for aerosol emissions from these events, and find that shortwave cooling from sulfate was largely offset by warming from ash deposition to cryospheric surfaces and longwave warming from atmospheric ash and sulfate. Shortwave forcing from atmospheric ash was slightly negative in the global-mean under central estimates of optical properties, though this forcing term was uniquely sensitive to the simulated distribution of clouds. The forcing components sum to near climate-neutral global-mean 2010 instantaneous (-1.9 milliwatts per square meter (mW/m^2)) and effective (-0.5 mW/m^2) radiative forcing, where the latter is elevated by high efficacy of snow-deposited ash. Ranges in net instantaneous (-7.3 to +2.8 mW/m^2) and effective (-7.2 to +4.9 mW/m^2) forcing derived from sensitivity studies are dominated by uncertainty in ash shortwave absorptivity. Forcing from airborne ash decayed quickly, while sulfate forcing persisted for several weeks and ash deposits continued to darken snow and sea-ice surfaces for months following the eruption. Despite small global forcing, monthly-averaged net forcing exceeded 1 watt per square meter (W/m^2) in some regions. These findings indicate that ash can be an important component of climate forcing from high-latitude volcanic eruptions, and in some circumstances may exceed sulfate forcing. Data provided here include the derived ash optical properties that were used in the climate and radiative forcing calculations of this study.
DOI: 10.18739/a2gf0mx4g
title: Lake basin water level and ground temperature data in Arctic Alaska, 2019-2020

description: Lakes are abundant features on coastal plains of the Arctic and most are termed "thermokarst" because they form in ice-rich permafrost and gradually expand over time. The dynamic nature of thermokarst lakes also makes them prone to catastrophic drainage and abrupt conversion to wetlands, called drained thermokarst lake basins (DTLBs). Together, thermokarst lakes and DTLBs cover up to 80% of arctic lowland regions, making understanding their response to ongoing climate change essential for coastal plain environmental assessment. Datasets presented here document water level and temperature (surface and ground) regimes for a large (23 sites in 2019-2020) array of lake with high drainage potential and lake basin (DTLBS), which have already drained, located on differing terrain units of Alaska's Arctic Coastal Plain. Lake data was measured along deep protected shorelines using pressure transducers to record hourly water level and bed temperature. Wetland (DTLB) data was also measured with pressure transducers and ground thermistors at 25 and 100 centimeters (cm) depth. Of special interest at some DTLB sites was the potential occurrence of snow-dam outburst events during the early summer snowmelt periods. In these cases, pressure transducers were set to log at 10 minute intervals for this period. All data archived here are summarized at daily average values.
DOI: 10.5281/zenodo.14203179
title: Movie Reviews Dataset

description: This dataset, derived from professional movie critic reviews (https://www.cs.cornell.edu/people/pabo/movie-review-data/), includes 17,165 reviews across 2,544 unique movies spanning from the 1940s to the 2020s. We enriched the dataset with metadata such as the actor, director, and writer (including their genders) using the OMDb API, gender identifier, as well as additional validation methods.
DOI: 10.5281/zenodo.14203180
title: Movie Reviews Dataset

description: This dataset, derived from professional movie critic reviews (https://www.cs.cornell.edu/people/pabo/movie-review-data/), includes 17,165 reviews across 2,544 unique movies spanning from the 1940s to the 2020s. We enriched the dataset with metadata such as the actor, director, and writer (including their genders) using the OMDb API, gender identifier, as well as additional validation methods.
DOI: 10.18739/a2bn9x406
title: Lake basin water level and ground temperature data in Arctic Alaska, 2019-2020

description: Lakes are abundant features on coastal plains of the Arctic and most are termed "thermokarst" because they form in ice-rich permafrost and gradually expand over time. The dynamic nature of thermokarst lakes also makes them prone to catastrophic drainage and abrupt conversion to wetlands, called drained thermokarst lake basins (DTLBs). Together, thermokarst lakes and DTLBs cover up to 80% of arctic lowland regions, making understanding their response to ongoing climate change essential for coastal plain environmental assessment. Datasets presented here document water level and temperature (surface and ground) regimes for a large (23 sites in 2019-2020) array of lake with high drainage potential and lake basin (DTLBS), which have already drained, located on differing terrain units of Alaska's Arctic Coastal Plain. Lake data was measured along deep protected shorelines using pressure transducers to record hourly water level and bed temperature. Wetland (DTLB) data was also measured with pressure transducers and ground thermistors at 25 and 100 centimeters (cm) depth. Of special interest at some DTLB sites was the potential occurrence of snow-dam outburst events during the early summer snowmelt periods. In these cases, pressure transducers were set to log at 10 minute intervals for this period. All data archived here are summarized at daily average values.
DOI: 10.18739/a26w9696t
title: In situ sea ice temperature and relative conductivity measurements from Microstructure and In situ Salinity and Temperature buoy in Elson Lagoon, October 2017-March 2018

description: Two Microstructure and In situ Salinity and Temperature (MIST) buoys were deployed in Elson Lagoon in October, 2017. They each consist of two vertical sets of 32 temperature sensors colocated with pairs of exposed wires, between which the electrical impedance of the ice/water in between can be measured (see Notz, 2005). These sensor pairs are located every 3 centimeters (cm) from slightly (~3 cm) above the water line to ~87 cm below. The buoys were each additionally equipped with air temperature, Global Positioning System (GPS), and x-y tilt sensors. Each sensor is sampled every hour, at which point data was both stored locally and sent back via Iridium short burst data link. The buoys were deployed in open water at the beginning of the ice growth season so that the sea ice grows down around the sensors. The electrical impedance of the water and ice, combined with the temperature, can be used to find solid fraction and bulk salinity of the ice as it grows and evolves over the winter season.
 These buoys were a new design, using a sensor system that had not been run unattended in the field for long periods of time before. Several channels on the sensors stopped reporting over the course of the season, so missing measurements in this dataset are filled in with "NaN". The only vertical profile that continued making measurements throughout a full ice growth season is the left side of buoy E. This was however an abbreviated season, with the buoy having been run over by an ice floe shortly after deployment and was chipped out of the ice and righted in early December (see Sampling, Study Extent section). 
 Notz, D., Wettlaufer, J.S. and Worster, M.G., 2005. A non-destructive method for measuring the salinity and solid fraction of growing sea ice in situ. Journal of Glaciology, 51(172), pp.159-166.
DOI: 10.18739/a2348gh20
title: Sea surfaces temperatures near Sermilik Fjord and Helheim Glacier (2000-2018)

description: This dataset consists of MODerate resolution Imaging Spectroradiometer (MODIS)-derived sea surface temperature (SST) records from the continental shelf near Sermilik Fjord and Helheim Glacier. Parameters include daily bulk SST (SST with seasonal adjustments) and monthly adjusted SST (SST with seasonal and air temperature adjustments) averaged over three sampling regions: the Irminger Current, East Greenland Coastal Current, and the shelf trough box located over the bathymetric trough leading from the continental slope to Sermilik Fjord. The data set also includes a monthly SST anomaly for thirteen-14x14 kilometers sampling boxes along a transect following the bathymetric trough. Bulk SST are MODIS-derived SSTs from all Aqua and Terra SST products (day/night) with diurnal bias removed. The adjusted SST infers upper ocean temperatures in all three regions and, for the shelf trough only, is a proxy for the Atlantic Water temperatures that reach Sermilik Fjord mouth and enter at depth. The SST anomaly provides an estimate of Atlantic Water intrusion onto the continental shelf toward Sermilik Fjord.
DOI: 10.18739/a2zc7rv70
title: In-situ snow accumulation, melt, and firn density records using ground penetrating radar and firn cores, western Greenland, 1955-2017

description: The stability of the Greenland Ice Sheet (GIS) is of critical interest to scientists and society at large in the context of future sea-level rise. The magnitude of GIS volumetric shrinkage in the coming decades depends on its glacial discharge and surface mass balance (SMB), with the later representing the balance between accumulation and surface melt. Estimates of Greenland SMB increasingly utilize climate reanalyses and high-resolution regional climate models (RCMs) to determine snow accumulation, surface melt and runoff/refreeze. These models show significant and model-dependent biases along the high-gradient edges of the GIS where the highest and most variable (in space and time) rates of accumulation and surface melt are observed. Thus, the edges of the GIS are in critical need of updated validation with in-situ accumulation and melt data, as model biases lead to significant deviations in mass balance estimates. Here we propose a traverse in the Western Greenland percolation zone over two field seasons to develop continuous in-situ snow accumulation and firn density records using ground-based radar and shallow firn cores. Our research objectives include: (1) determining the spatiotemporal patterns of snow accumulation in Western Greenland over the past 20-40 years; (2) evaluating surface melt refreeze and englacial meltwater storage in the Western Greenland percolation zone over the past 20-40 years; and (3) quantifying the accumulation and surface melt biases of the most recent climate reanalysis models and their RCM counterparts.
DOI: 10.18739/a29p2w69d
title: Data in support of "Climate response to negative greenhouse gas radiative forcing in polar winter" [2017-2018]

description: Greenhouse gas (GHG) additions to Earth’s atmosphere initially reduce global outgoing longwave radiation (OLR), thereby warming the planet. In select environments with temperature inversions, however, increased GHG concentrations can actually increase local OLR. Negative top-of-atmosphere and effective radiative forcing (ERF) from this situation give the impression that local surface temperatures could cool in response to GHG increases. Here we consider an extreme scenario in which GHG concentrations are increased only within the warmest layers of winter near-surface inversions of the Arctic and Antarctic. We find, using a fully coupled Earth system model, that the underlying surface warms despite the GHG addition exerting negative ERF and cooling the troposphere in the vicinity of the GHG increase. This unique radiative forcing and thermal response is facilitated by the high stability of the polar winter atmosphere, which inhibits thermal mixing and amplifies the impact of surface radiative forcing on surface temperature. These findings also suggest that strategies to exploit negative ERF via injections of short-lived GHGs into inversion layers would likely be unsuccessful in cooling the planetary surface.  Data provided here include spectrally-resolved simulations of the anti-greenhouse effect and climate model output.
DOI: 10.18739/a2183435s
title: Lake Surface Sediment Transect from northern Alaska - Leaf wax biomarker (n-alkane and n-acid) indices and hydrogen isotope ratios, 2011-2015

description: The hydrogen isotope ratio of leaf waxes is an increasingly utilized paleoclimate proxy used to reconstruct past hydroclimate variations. Continued calibration work on this proxy is needed, particularly in the Arctic. One calibration approach is to compare spatial patterns in hydrogen isotope (D/H) ratios of precipitation with those of leaf waxes found in lake surface sediment. This dataset includes biomarker data from lake surface sediments collected from the Circumarctic Lakes Observation Network (CALON) and Toolik Long-Term Ecological Research (LTER) station study lakes between 2011 and 2015. Specifically, the dataset contains leaf wax (n-alkane and n-acid) distribution information and hydrogen isotope ratios from 9 lakes located on the North Slope of Alaska.
DOI: 10.15468/dl.gb64hc
title: Occurrence Download

description: A dataset containing 33 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Trechus amplicollis Fairmaire, 1859"
 ]
}

 The dataset includes 33 records from 11 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0027838-241107131044228/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.18739/a2m61bq93
title: Simultaneous Heat and Water (SHAW) input and outputs for three parameterizations of upland deciduous boreal forest at Bonanza Creek, Alaska 2003-2015

description: This dataset provides inputs and outputs for the Simultaneous Heat and Water (SHAW) model implemented at the upland birch site (labeld UP1A) at the Bonanza Creek Long Term Ecological Research (BNZ LTER) site. The purpose of this study was to parameterize SHAW for upland boreal deciduous forest. Input climate data includes air temperature, precipitation, wind speed, relative humidity, and downward solar radiation, and was derived from previously published data from the BNZ LTER. Model parameters describing plant structural and water use characteristics were obtained from vegetation surveys at the BNZ LTER and from relevant scientific literature. Soil texture model parameters were also obtained from data published through the BNZ LTER. A Generalized Likelihood Uncertainty Estimation (GLUE) approach was used to assess soil hydraulic parameters. Three sets of hydraulic parameters are identified, using Pareto optimization to identify sets that minimize root mean squared error of soil moisture and temperature (Case 1), model performance dependence on interannual variability (Case 3), and a compromise between the two (Case 2). Case 2 parameter files are uploaded as individual files; inputs and outputs for Case 1 and Case 3 are provided as compressed directories with model inputs and outputs for their respective parameters. 
 These data are published in support of the manuscript: 
 Marshall, A.M.; Link, T.E., Flerchinger, G.N., Nicolsky, D.J., Lucash, M.S. (2020). Ecohydrological modeling in deciduous boreal forest: Model evaluation for application in non-stationary climates. Manuscript submitted to Hydrological Processes.
DOI: 10.18739/a2rr1pn55
title: Warming and irradiance Measurement (WARM) buoys deployed in Canada Basin and Chukchi Shelf, Arctic Ocean, 2019

description: The Warming and irradiance Measurement (WARM) buoy collects measurements of light, temperature, salinity and phytoplankton abundance under the Arctic sea ice. The Arctic ice pack has suffered continued thinning and reduction in seasonal extent, resulting in changes to the amount of sunlight penetrating through the ice and into the ocean beneath, having consequences for the physical and biological environment. Sunlight absorbed by the ocean under the ice causes warming, which can lead to accelerated ice melt resulting in even more sunlight reaching the ocean. In addition, warmer water also affects living organisms, influencing the ability of Arctic adapted species to survive, and possibly promoting the northward advancement of sub-Arctic species. Thinner ice also increases light available for photosynthesis, affecting the timing of phytoplankton blooms. If phytoplankton growth occurs early in the season then zooplankton, the organisms that feed on them can miss the bloom with consequences for the entire food web of the Arctic. This project aims to provide observations to help determine how the under-ice environment is changing by using autonomous buoys which overcome the limitations of ship-based observations. The buoys have proven to be very robust and can survive for approximately one year, providing hourly observations which will be available in near-real time to the research community and interested public parties. The buoys will be deployed in early spring in the western Beaufort Sea, with anticipated drift west over the Chukchi Shelf.
 This dataset includes data from an ice-tethered buoy deployed on Arctic sea ice in March 2019. Data measured include, Photosynthetically available radiation, temperature, and chlorophyll. A sidekick was deployed coincidently with the buoy and measured surface Photosynthetically available radiation
DOI: 10.18739/a2n00zv1b
title: Warming and irradiance Measurement (WARM) buoys deployed in Canada Basin and Chukchi Shelf, Arctic Ocean, 2019

description: The Warming and irradiance Measurement (WARM) buoy collects measurements of light, temperature, salinity and phytoplankton abundance under the Arctic sea ice. The Arctic ice pack has suffered continued thinning and reduction in seasonal extent, resulting in changes to the amount of sunlight penetrating through the ice and into the ocean beneath, having consequences for the physical and biological environment. Sunlight absorbed by the ocean under the ice causes warming, which can lead to accelerated ice melt resulting in even more sunlight reaching the ocean. In addition, warmer water also affects living organisms, influencing the ability of Arctic adapted species to survive, and possibly promoting the northward advancement of sub-Arctic species. Thinner ice also increases light available for photosynthesis, affecting the timing of phytoplankton blooms. If phytoplankton growth occurs early in the season then zooplankton, the organisms that feed on them can miss the bloom with consequences for the entire food web of the Arctic. This project aims to provide observations to help determine how the under-ice environment is changing by using autonomous buoys which overcome the limitations of ship-based observations. The buoys have proven to be very robust and can survive for approximately one year, providing hourly observations which will be available in near-real time to the research community and interested public parties. The buoys will be deployed in early spring in the western Beaufort Sea, with anticipated drift west over the Chukchi Shelf.
 This dataset includes data from an ice-tethered buoy deployed on Arctic sea ice in March 2019. Data measured include, Photosynthetically available radiation, temperature, and chlorophyll. A sidekick was deployed coincidently with the buoy and measured surface Photosynthetically available radiation