cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.18739/a2cz4r
title: thule_snowfence_soil_stem_water_isotope_2012.xls

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/a2884x
title: thule_snowfence_tissue_2012.csv

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/a2bz66
title: thule_soil_moisture_2013.xls

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/a2784m
title: thule_tram_soil_moisture_2012.csv

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/a2zr8g
title: thule_tram_soil_temps_2012.csv

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 DOY158, removed DOY227 in 2012. 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, minute of hour, fractional day of year, fractional year, temperature in C. Temperature resolution is 0.5 C
DOI: 10.18739/a23g19
title: thule_tram_soil_temp_winter_2013.csv

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: 10.18739/a2q83k
title: Toolik Logger Data NIMS - 2014

description: Logger records from the Networked Info-mechanical Systems (NIMS), Transect length: ~50m The data was recorded using a CR3000 logger. The sensor trolley was equipped with instruments for recording the distance to vegetation canopy (SR50a Sonic Distance, Campbell Scientific), up- and downwelling short- and longwave radiation (CNR4 net radiometer, Kipp & Zonen), air temperature and surface temperature (SI-111 IR radiometer, Apogee Instruments Inc.) and spectral reflection (Jaz Combo-2, Ocean Optics; GreenSeeker RT100 (505), NTech).
DOI: 10.18739/a2kk09
title: Toolik Spectrometer Data 2014 - Ocean Optics, Jaz

description: Spectroradiometer data from the Ocean Optics Jaz Combo-2. Channel 0 (denoted _00jaz in file names) is the fiber looking at the earth's surface, Channel 1 (denoted _01jaz in file names) is the fiber looking at the reference.
DOI: 10.18739/a2dg13
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: 10.18739/a2027h
title: Photogrammetric scans of aerial photographs of North American glaciers, 1993

description: Introduction: 
 
 Between 1958 and 1999, Austin Post led the USGS collection of aerial imagery of North American glaciers. These images are primarily vertical stereo black and white images, although single oblique images, as well as color images have been collected. The glaciers of North America were the subjects, and the digital products made available here serve to document the changes that have occurred to the glaciers over the past 5 decades. The purpose of this project is to preserve the data contained within these film images in a digital format for future analysis of North American glacier change.
 
 File Layout: 
 
 
 1. 
 
 The first level contains an overall data set of image metadata from 1964 - 1997 (nagapData.csv) and an R script (searchData.R) with instructions on how to search and subset the data. fileLayout.pdf shows the file structure and folder contents visually. There are also three kml files with flight path information by decade. 
 
 2. 
 
 The second level (this level) is the year in which the pictures were taken. There are 32 years with images from 1964 – 1997. The majority of these folders are jpegs with notes provided by Austin Post. They also contain a year-specific csv (YYYY.csv) that contains image metadata for the entire year (date, roll numbers, location name, longitude, latitude, altitude, media, and comments). The overall data set (nagapData.csv) is the aggregate of each individual “YYYY.csv” file. 
 
 3. 
 
 The glacier photos are located at the third level. The folders at this level are distinguished by camera roll number (1, 2, etc.), and image type (thumbnail, jpeg, or tif); some also contain fiducial and oblique image folders. This level primarily contains image files of aerial photos as either thumbnails, jpegs, or tifs. It also includes a csv with image metadata specific to each roll (date, roll numbers, location name, longitude, latitude, altitude, media, and comments), a text file (info.txt) with camera specifications unique to each image, and a text file (histo.txt) with color information unique to each image.
DOI: 10.18739/a2k84q
title: Photogrammetric scans of aerial photographs of North American glaciers, 1969. Roll 3 tiffs

description: Introduction: 
 
 Between 1958 and 1999, Austin Post led the USGS collection of aerial imagery of North American glaciers. These images are primarily vertical stereo black and white images, although single oblique images, as well as color images have been collected. The glaciers of North America were the subjects, and the digital products made available here serve to document the changes that have occurred to the glaciers over the past 5 decades. The purpose of this project is to preserve the data contained within these film images in a digital format for future analysis of North American glacier change.
 
 File Layout: 
 
 
 1. 
 
 The first level contains an overall data set of image metadata from 1964 - 1997 (nagapData.csv) and an R script (searchData.R) with instructions on how to search and subset the data. fileLayout.pdf shows the file structure and folder contents visually. There are also three kml files with flight path information by decade. 
 
 2. 
 
 The second level is the year in which the pictures were taken. There are 32 years with images from 1964 – 1997. The majority of these folders are jpegs with notes provided by Austin Post. They also contain a year-specific csv (YYYY.csv) that contains image metadata for the entire year (date, roll numbers, location name, longitude, latitude, altitude, media, and comments). The overall data set (nagapData.csv) is the aggregate of each individual “YYYY.csv” file. 
 
 3. 
 
 The glacier photos are located at the third level (this level). The folders at this level are distinguished by camera roll number (1, 2, etc.), and image type (thumbnail, jpeg, or tif); some also contain fiducial and oblique image folders. This level primarily contains image files of aerial photos as either thumbnails, jpegs, or tifs. It also includes a csv with image metadata specific to each roll (date, roll numbers, location name, longitude, latitude, altitude, media, and comments), a text file (info.txt) with camera specifications unique to each image, and a text file (histo.txt or matchReport.txt) with color information and scanner specifications unique to each image.
DOI: 10.18739/a28c26
title: Photogrammetric scans of aerial photographs of North American glaciers, 1979

description: Introduction: 
 
 Between 1958 and 1999, Austin Post led the USGS collection of aerial imagery of North American glaciers. These images are primarily vertical stereo black and white images, although single oblique images, as well as color images have been collected. The glaciers of North America were the subjects, and the digital products made available here serve to document the changes that have occurred to the glaciers over the past 5 decades. The purpose of this project is to preserve the data contained within these film images in a digital format for future analysis of North American glacier change.
 
 Package Layout: 
 
 
 1. 
 
 The first level contains an overall data set of image metadata from 1964 - 1997 (nagapData.csv) and an R script (searchData.R) with instructions on how to search and subset the data. fileLayout.pdf shows the file structure and folder contents visually. There are also three kml files with flight path information by decade. 
 
 2. 
 
 The second level (this level) is the year in which the pictures were taken. There are 32 years with images from 1964 – 1997. The majority of these folders are jpegs with notes provided by Austin Post. They also contain a year-specific csv (YYYY.csv) that contains image metadata for the entire year (date, roll numbers, location name, longitude, latitude, altitude, media, and comments). The overall data set (nagapData.csv) is the aggregate of each individual “YYYY.csv” file. 
 
 3. 
 
 The glacier photos are located at the third level. The folders at this level are distinguished by camera roll number (1, 2, etc.), and image type (thumbnail, jpeg, or tif); some also contain fiducial and oblique image folders. This level primarily contains image files of aerial photos as either thumbnails, jpegs, or tifs. It also includes a csv with image metadata specific to each roll (date, roll numbers, location name, longitude, latitude, altitude, media, and comments), a text file (info.txt) with camera specifications unique to each image, and a text file (histo.txt) with color information unique to each image.
DOI: 10.18739/a24p22
title: Photogrammetric scans of aerial photographs of North American glaciers, 1977

description: Introduction: 
 
 Between 1958 and 1999, Austin Post led the USGS collection of aerial imagery of North American glaciers. These images are primarily vertical stereo black and white images, although single oblique images, as well as color images have been collected. The glaciers of North America were the subjects, and the digital products made available here serve to document the changes that have occurred to the glaciers over the past 5 decades. The purpose of this project is to preserve the data contained within these film images in a digital format for future analysis of North American glacier change.
 
 Package Layout: 
 
 
 1. 
 
 The first level contains an overall data set of image metadata from 1964 - 1997 (nagapData.csv) and an R script (searchData.R) with instructions on how to search and subset the data. fileLayout.pdf shows the file structure and folder contents visually. There are also three kml files with flight path information by decade. 
 
 2. 
 
 The second level (this level) is the year in which the pictures were taken. There are 32 years with images from 1964 – 1997. The majority of these folders are jpegs with notes provided by Austin Post. They also contain a year-specific csv (YYYY.csv) that contains image metadata for the entire year (date, roll numbers, location name, longitude, latitude, altitude, media, and comments). The overall data set (nagapData.csv) is the aggregate of each individual “YYYY.csv” file. 
 
 3. 
 
 The glacier photos are located at the third level. The folders at this level are distinguished by camera roll number (1, 2, etc.), and image type (thumbnail, jpeg, or tif); some also contain fiducial and oblique image folders. This level primarily contains image files of aerial photos as either thumbnails, jpegs, or tifs. It also includes a csv with image metadata specific to each roll (date, roll numbers, location name, longitude, latitude, altitude, media, and comments), a text file (info.txt) with camera specifications unique to each image, and a text file (histo.txt) with color information unique to each image.
DOI: 10.18739/a2cz54
title: Nearshore oceanographic observations at Drew Point, Alaska, Summers 2009 and 2010

description: The Arctic climate is changing, inducing accelerating retreat of ice-rich permafrost coastal bluffs. Along Alaska’s Beaufort Sea coast, erosion rates have increased roughly threefold from 6.8 to 19 m per yr since 1955 while the sea ice-free season has increased roughly twofold from 45 to 100 days since
1979. We develop a numerical model of bluff retreat to assess the relative roles of the length of sea ice-free
season, sea level, water temperature, nearshore wavefield, and permafrost temperature in controlling
erosion rates in this setting. The model captures the processes of erosion observed in short-term
monitoring experiments along the Beaufort Sea coast, including evolution of melt notches, topple of ice
wedge-bounded blocks, and degradation of these blocks. Model results agree with time-lapse imagery
of bluff evolution and time series of ocean-based instrumentation. Erosion is highly episodic with 40% of
erosion is accomplished during less than 5% of the sea ice-free season. Among the formulations of the
submarine erosion rate we assessed, we advocate those that employ both water temperature and nearshore
wavefield. As high water levels are a prerequisite for erosion, any future changes that increase the frequency
with which water levels exceed the base of the bluffs will increase rates of coastal erosion. The certain
increases in sea level and potential changes in storminess will both contribute to this effect. As water
temperature also influences erosion rates, any further expansion of the sea ice-free season into the
midsummer period of greatest insolation is likely to result in an additional increase in coastal retreat rates.
 This dataset includes observations of water level, water temperature, and wave field collected in 2009 and 2010 near Drew Point, AK by investigators Anderson, Overeem, and Wobus, with help from Adam LeWinter. This data was used in a publication published in 2014 by Barnhart et al. Barnhart, K. R., R. S. Anderson, I. Overeem, C. Wobus, G. D. Clow, and F. E. Urban (2014), Modeling erosion of ice-rich permafrost bluffs along the Alaskan Beaufort Sea coast, Journal of Geophysical Research Earth Surface, 119, doi:10.1002/2013JF002845. Platform/Station/Site/Ship Information: A map of the sites can be found in Figure 2 of Barnhart et al. (2014). Exact latitude/longitude locations and temporal durations for each instrument is provided in the attached README.
DOI: 10.18739/a20k2s
title: thule_plot_flux_2013.csv

description: net ecosystem exchange, ecosystem respiration, and calculated gross primary productivity 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. Data set also includes important met data for predicting carbon flux (see also thule_met_2013.xls). LiCor 6400 with custom chamber. Data were collected every few days, weather permitting. Measurements consisted of a light measurement (net ecosystem exchange) followed by a dark measurement (ecosystem respiration) where the chamber was covered in dense shade cloth. Measurement was the change in CO2 in the chamber over a two minute period. NEE and ER were calculated from this change and adjusted for water vapor concentration in the chamber and exchange of air in the open system. GEP was calculated from NEE and ER. Convention in this data set is uptake of CO2 is a negative value, release of CO2 is a positive value. Flux values were matched to the nearest-in-time 5-min met station data. Surface temperature was measured with a thermocouple attached to the LiCor 6400. csv, comma-delimited text. Data columns are: day of year, plot number, hour, minute, second, fractional day of year, net ecosystem exchange (umol m-2 s-1), ecosystem respiration (umol m-2 s-1), gross ecosystem productivity (umol m-2 s-1), PAR from the sensor on the licor (umol m-2 s-1), temperature of the ground surface (C), incoming PAR (umol m-2 s-1), reflected PAR (umol m-2 s-1), albedo (%), air temperature (C), relative humidity (%), volumetric water content (%), saNDVI, and soil temperature (C). Data set contains all measurements, not processed for non-sensical values such as GEP &gt;0. See thule_met_2013.xls for information on met station data, and thule_flux_plot_ndvi_2013.csv for information on NDVI.
DOI: 10.5281/zenodo.7634845
title: ECEMF Diagnostic Scenarios, version 1.0

description: This dataset compiles diagnostic scenarios from several Integrated Assessment Models (IAM) and Energy System Models (ESM) to facilitate systematic comparison of a broad range of results across these models. These diagnostic scenarios were developed in the Horizon 2020 project ECEMF (https://ecemf.eu). Visit the ECEMF Scenario Explorer hosted by IIASA at https://data.ece.iiasa.ac.at/ecemf for more information and interactive user interface to work with the scenario data.
DOI: 10.5281/zenodo.10032658
title: ECEMF Diagnostic Scenarios, version 2.0

description: This dataset compiles diagnostic scenarios from several Integrated Assessment Models (IAM) and Energy System Models (ESM) to facilitate systematic comparison of a broad range of results across these models.

These diagnostic scenarios were developed in the Horizon 2020 project ECEMF (https://ecemf.eu).

Visit the ECEMF Scenario Explorer hosted by IIASA at https://ecemf.apps.ece.iiasa.ac.at/ for more information and interactive user interface to work with the scenario data.
DOI: 10.5281/zenodo.7634844
title: ECEMF Diagnostic Scenarios, version 2.0

description: This dataset compiles diagnostic scenarios from several Integrated Assessment Models (IAM) and Energy System Models (ESM) to facilitate systematic comparison of a broad range of results across these models.

These diagnostic scenarios were developed in the Horizon 2020 project ECEMF (https://ecemf.eu).

Visit the ECEMF Scenario Explorer hosted by IIASA at https://ecemf.apps.ece.iiasa.ac.at/ for more information and interactive user interface to work with the scenario data.
DOI: 10.18739/a27p8tc5j
title: Active Layer ARCSS grid Atqasuk, Alaska 2015

description: Active Layer measurements were taken on a 30 plot subset within the Arctic System Science (ARCSS) Grid in Atqasuk, Alaska during the 2015 summer field season. Each measurement was taken on the north eastern most corner of each plot. The chosen subset was located from E2-E6 and J2-J6. The Systems Ecology Lab at the University of Texas El Paso (SEL) Circumpolar Active Layer Monitoring (CALM) depth probe was used to take the measurements.
DOI: 10.18739/a2wd3q12m
title: Active Layer ARCSS grid Atqasuk, Alaska 2014

description: Active Layer measurements were taken on a 30 plot subset within the Arctic System Science (ARCSS) Grid in Atqasuk, Alaska during the 2014 summer field season. Each measurement was taken on the northeastern-most corner of each plot. The chosen subset was located from E2-E6 and J2-J6.
DOI: 10.18739/a2pn8xd8c
title: Active Layer ARCSS grid Barrow, Alaska 2015

description: Active Layer measurements were taken on a 30 plot subset within the Arctic System Science (ARCSS) Grid in Barrow, Alaska. Each measurement was taken on the north eastern most corner of each plot. The chosen subset was located from D2-D7 and H2-H7. The University of Texas at El Paso's Systems Ecology Lab (SEL) lab's long depth probe was used (orange tape on the handle). Data have been corrected by subtracting 3 cm from measurements made in the field to account for the missing tip of the probe.
DOI: 10.18739/a2jw86m4m
title: Active Layer ARCSS grid Barrow, Alaska 2014

description: Active Layer measurements were taken on a 30 plot subset within the Arctic System Science (ARCSS) Grid in Barrow, Alaska. Each measurement was taken on the north eastern most corner of each plot. The chosen subset was located from D2-D7 and H2-H7.