Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
31,887
datasets available to search
ShareScore release 0.9.0
Dataset results
31,887 results for “three”
Methane and carbon dioxide emissions were monitored in control, greenhouse, and nitrogen and phosphorus fertilized plots of three different plant communities, Toolik Field Station, North Slope Alaska, Arctic LTER 1991.
Methane and carbon dioxide emissions were monitored in control, greenhouse, and nitrogen and phosphorus fertilized plots of three different plant communities.
Methane and carbon dioxide emissions were monitored in control, greenhouse, and nitrogen and phosphorus fertilized plots of three different plant communities Arctic LTER experimental plots, Toolik Field Station, 1992.
Methane and carbon dioxide emissions were monitored in control, greenhouse, and nitrogen and phosphorus fertilized plots of three different plant communities. This is the second year of collection data.
Methane and carbon dioxide emissions were monitored in control, greenhouse, and nitrogen and phosphorus fertilized plots of three different plant communities, Toolik Field Station, North Slope Alaska, Arctic LTER 1993.
Methane and carbon dioxide emissions were monitored in control, greenhouse, and nitrogen and phosphorus fertilized plots of three different plant communities. This is the third year of collection data.
Plant available NH4, NO3, and PO4 was determined at three site (LTER Toolik acidic and nonacidic tundra and Sagwon acidic tundra) and three community combinations (tussock, watertrack, and snowbed) Arctic LTER 1997.
Plant available NH4, NO3, and PO4 was determined at three site (LTER Toolik acidic tundra, LTER Toolik nonacidic tundra, and Sagwon acidic tundra) and three community combinations (tussock, watertrack, and snowbed), three times during the season. pH was also determined in July and strong acid phosphorous in August.
Spatial patterns of understory vegetation and soil in an Alaskan upland boreal forest fire chronosequence. Three sites located in Delta Junction Alaska. Soil sampled during summer 2007
In this study we used geostatistics to characterize the spatial heterogeneity of soil carbon and nitrogen pools, microbial respiration, microbial biomass, nitrogen mineralization, soil moisture, soil pH, depth of organic horizon and forest floor covers and understory vegetation abundances in three sites (1999, 1987 and 1920 wildfires) of a boreal forest chronosequence of Interior Alaska (near Delta Junction). Soil sampling and vegetation measurements occured during summer 2007.
Murphy Dome: Hourly temperature of air and soil, PAR, relative humidity and soil moisture in three pairs of adjacent black spruce and birch stands 2012-2018
This dataset contains weather station data (air and soil temperature, relative humidity, moisture, and PAR) from 2012 to 2019. The data was collected in three blocks (A, B, and C) of adjacent black spruce and paper birch stands at Murphy Dome (access via Cache Creek road).
Murphy Dome: Moss (Hylocomium splendens) biomass results from a moss transplant and leaf litter manipulation experiment in three pairs of adjacent black spruce and birchs stands.
This dataset contains moss (Hylocomium splendens) growth from individual moss shoots within moss transplants in black spruce and paper birch stands. 10 mosses were marked with PVC beads in June 2013 and then each moss segment was measured in the field in June and September of 2013, 2014 and June and August 2015. All samples were harvested in 2015 and their dry weights were calculated. Moss biomass from other time periods were estimated using allometric equations. The data was collected in three blocks (A, B, and C) of adjacent black spruce and paper birch stands at Murphy Dome (access via Cache Creek road).
Murphy Dome: Covariates measured on the sampling units of moss (Hylocomium splendens) from a moss transplant and leaf litter manipulation experiment in three pairs of adjacent black spruce and birchs stands. This data is associated to the file MD_MossBiomass_2013-2015.xlsx
This data contains sampling unit level variables associated with the moss measurements from MD_MossBiomass_2013-2015.txt. It include the percent cover of leaf litter through time, fungus cover in 2015, moisture in 2015, and percent openness of the tree canopy measured in July 2014.
Standardized ring-width chronologies for white and black spruce at three sites in the southern Brooks Range, Alaska
Although black spruce is the dominant treeline species in the eastern boreal forest, its distribution stops several kilometers short of treeline in the Brooks Range in Alaska, and white spruce is the dominant treeline species. The explanation for this distribution is not known, but two hypotheses are plausible. First, black spruce may be less tolerant of climatic conditions near treeline than white spruce. Second, black spruce may be unable to regenerate successfully near treeline due to long intervals between fires. We are establishing permanently marked study plots along a transect from the Yukon River basin, where black spruce is the dominant species, to the foothills of the Brooks Range, where it reaches its distributional limit. We are reconstructing recruitment history of both black and white spruce at our study sites, and are reconstructing recent fire history from analysis of fire scars and stand age structures. These data are being used to parameterize matrix population models, with which we are describing patterns of population stability.
Depth patterns of gross nitrogen cycling and soil exoenzyme activities for three northern hardwood forests
Despite the enormous size of the organic nitrogen (N) pool contained in mineral subsoils, rates of N cycling and soil exoenzyme activities are rarely measured in soils below 10 or 20 cm depth. Furthermore, assumed relationships between N mineralization rates and the activities of various decomposition exoenzymes are poorly characterized. We measured rates of gross and net N mineralization and nitrification as well as the potential activities of hydrolytic and oxidative enzymes at five soil depths (forest floor to 50 cm) in Spodosols at three hardwood forests of varying age (45 and 100 years post-harvest and old growth) at and near the Hubbard Brook Experimental Forest in New Hampshire, USA. As expected, rates of N cycling and potential enzyme activities per unit soil mass correlated strongly with soil carbon (C) concentration, and these parameters declined exponentially with increasing soil depth. After normalization per unit soil organic matter, N cycling rates and specific enzyme activities generally decreased little with depth within the mineral soil. Gross N mineralization rates correlated with specific activities of those enzymes that hydrolyze cellulose (β-glucosidase, cellobiohydrolase) and N-rich glucosamine polymers (N-acetylglucosaminidase), but not those that degrade protein or more complex C compounds. Hence, gross N cycling appear associated with the N released during microbial N recycling, rather than from decomposition of soil organic matter. Across the three stands, the youngest had a larger ratio of N- to-phosphorus-acquiring enzyme activities, indicating a greater N demand in younger than older forests. For all three stands, mineral soil below 10 cm contributed 30–53% of total gross and net N cycling per unit area to 50 cm depth. Overall, even though microbial N cycling and enzyme activities per unit soil mass decreased with depth, microbial processes in subsoils contributed substantially to ecosystem-scale gross N fluxes because of the sustained m
Averages of the three highest counts per decade for selected birds in Plum Island Sound
Averages of the three highest counts per decade (1930's, 1040's, 1950's and 1990's) for a variety of birds including: four shorebirds (black-bellied plover, greater yellowlegs, semipalmated plover, and semipalmated sandpiper), six waterfowl (American black duck, common loon, green-winged teal, mallard, red-breasted merganser, and white-winged scoter), one gull (Bonaparte's gull), and one tern (common tern) in Plum Island Sound., Massachusetts.
SBC LTER: Reef: Surge uptake capability in Macrocystis pyrifera in response to pulses of three different forms of nitrogen
This data describes the capacity of the giant kelp, Macrocystis pyrifera to exhibit surge uptake of three different forms of nitrogen in whole-blade incubation experiments done in spring and summer 2019. The data is contained in 2 tables: 1) uptake rates of 15N labeled nitrate, ammonium, and urea by blades exposed to pulses of nitrogen for periods lasting 1, 5, 15 and 45 min, 2) uptake rates of 15N labeled nitrate, ammonium, and urea for specific time intervals of pulsed nitrogen (e.g., 0-1 min, 1-5 min, 5-15 min and 15-45 min).
Sensor data from three different fishing ships for a period of one month
<p>The purpose of the data is to analyse data produced by fishing ships in order to reduce fuel consumption. The data has been used in WP3 of DataBio project. Data were processed and supplied by the VTT and UPV/EHU DataBio project team.</p>
Combined three-dimensional Milky Way extinction map (2019)
<p>This file contains an updated version of the combined Milky-Way extinction map from Bovy, Rix, Green et al. (2015) (see the Appendix) in HDF5 format. The component of the original dust map coming from Pan-STARRS data was updated to the Pan-STARRS dust map from Green et al. (2019). The format is similar to that described here: http://argonaut.skymaps.info/usage, except that no samples are included (so only the /best_fit attribute and other supporting ones are included). This file is downloaded and read by the https://github.com/jobovy/mwdust code.</p>
Three-dimensional magnetotelluric imaging of the SE Gonghe Basin: implication for the orogenic uplift in the northeastern margin of the Tibetan plateau
<p>The files contain the EDI data which are used in the inversion of resistivity model, and the the resistivity model inverted by the inversion software (ModEM) for the manuscript entitled " Three-dimensional magnetotelluric imaging of the SE Gonghe Basin: implication for the orogenic uplift in the northeastern margin of the Tibetan plateau". </p> <p>The EDI package file (EDI.rar ) contain 117 sites of broadband MT data. The inverted resistivity model (Inverted Resistivity.rho) is of ModEM format.</p>
Are Game Engines Software Frameworks? A Three-perspective Study
<p>Dataset for the paper: "Are Game Engines Software Frameworks? A Three-perspective Study"</p>
Annotated genes harboring major effect markers (R2 ≥ 15%). Highlighted in green are genes annotated from Rhodes et al. 2014,2017, in orange genes annotated as similar to Peroxidase, in yellow new annotations from sorghum genome in Atlas. In the first three columns start and stop position on the sorghum genome and transcript name, followed by the nearest marker name and the distance of the gene from the nearest marker, then a column where are shown the GWAS methods and target traits for which the linked SNP was significant, the last column shows the category of the genes.
<p><strong>We conducted a comprehensive genomics study to map genomic loci determining the production of antioxidants in sorghum grains. Encouraging results were obtained and published in peer-reviewed article with impact factor (https://doi.org/10.1371/journal.pone.0225979). Annotated genes harboring major effect markers (R<sup>2</sup> ≥ 15%) were identified and will be of worldwide interest. </strong></p>
Three-Dimensional Bernstein-Greene-Kruskal electron Holes Near Magnetic Null Points
<p>The files contain data generated from the theoretical model of electron holes in unmagnetized plasmas.</p>
Three Sisters: Women of High Degree
<p>Three Sisters, Women of High Degree is the result of 7 years of collaboration and filmed conversations between three Yimardoowarra Marninil, Nyikina women from the Fitzroy River, Lucy Marshall, Jeannie Wabi, and Anne Poelina, and French-Australian filmmaker Magali McDuffie. For over 30 years, Lucy, Wabi and Anne have been implementing cultural actions to create sustainable economies in their communities for future generations, and to protect their kandri, language and culture. Inscribing the women within their cultural landscape through their river stories, and spanning over 80 years and three generations, this film also retraces the recent history of the Kimberley through the sisters’ lived experiences of slavery on pastoral stations, and reveals the women’s agency in response to various government policies. Highlighting the use of film as a tool of empowerment, Three Sisters looks at the contemporary engagement of the women politically, at a local, national, and international level, in an increasingly neo-liberal context, with, in the background, the ever-increasing threat of massive industrialisation of the Kimberley region by multi-national mining corporations – the new colonisers.</p> <p>You can view this film at the Madjulla <a href="http://majala.com.au/news/2015/9/2/women-of-high-degree">website</a>.</p>
Figure 32 in Review of the Acontia areli group with descriptions of three new species (Lepidoptera, Noctuidae, Acontiinae)
Figure 32. Acontia geminocula distribution map.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.