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.
2,021
datasets available to search
ShareScore release 0.9.0
Dataset results
2,021 results for “valley”
McMurdo Dry Valleys Upper Howard Meteorological Station Monthly Averages
As part of the Long Term Ecological Research in the McMurdo Dry Valleys of Antarctica, meteorological data was collected from various locations throughout Beacon, Taylor, Wright and Victoria Valleys. These files contain data for the Upper Howard Glacier meteorology station monthly averages, as derived from the 15-min high-frequency data. The Upper Howard Glacier meteorological station was added to the McMurdo Dry Valley network in the 2001-2002 field season in Taylor Valley and removed November 8, 2004.
McMurdo Dry Valleys Garwood Ice Cliff Meteorological Station Monthly Averages, 2012-
 As part of the Long Term Ecological Research in the McMurdo Dry Valleys of Antarctica, meteorological data was collected from various locations throughout Beacon, Taylor, Wright and Victoria Valleys. These files contain averages derived from data for the Garwood Ice Cliff meteorology station. This station reported data for about a year, during 2011. On January 10, 2012 the station was being transferred to the custody of the MCM LTER program by Joe Levy (UT), completing of the handover on the Austral summer of 2014. The GAFM station was moved ~5 m from its original site in 2013 (out of the stream bed). GAFM no longer used, dismantled.
McMurdo Dry Valleys Bathymetric Values From Contour Map Digitizing
As part of the Long Term Ecological Research in the McMurdo Dry Valleys of Antarctica, bathymetric data was collected for Lakes Hoare, Fryxell and Bonney. This table contains the values for depth, perimeter length, polygon area and total area per contour used for contour map digitizing.
McMurdo Dry Valleys Taylor Glacier Blood Falls Geomicrobiology
Blood Falls, a subglacial discharge from the Taylor Glacier, Antarctica provides an example of the diverse physical and chemical habitats available for life in the polar desert of the McMurdo Dry Valleys. Geochemical analysis shows that Blood Falls outflow resembles concentrated seawater remnant from the Pliocene intrusion of marine waters combined with products of weathering. The result is an iron-rich, salty seep at the terminus of Taylor Glacier, which is subject to episodic releases into permanently ice-covered Lake Bonney. Blood Falls influences the geochemistry of Lake Bonney, and provides organic carbon and viable microbes to the lake system. Presented here is the first data on the geobiology of Blood Falls, and relate it to the evolutionary history of this unique environment. The novel geological evolution of this subglacial environment makes Blood Falls an important site for the study of metabolic strategies in subglacial environments, and the impact of subglacial efflux on associated lake ecosystems.
McMurdo Dry Valleys Stream Chemistry - Total Nitrogen
As part of the Long Term Ecological Research (LTER) project in the McMurdo Dry Valleys of Antarctica, a systematic aqueous geochemical sampling program has been undertaken. A series of terrestrial water samples have been collected and analyzed for dissolved total nitrogen levels. This dataset shows concentrations of total nitrogen (in filtered samples) found in various streams of the McMurdo Dry Valleys.
Taylor Valley Water Budgets
As part of the Long Term Ecological Research (LTER) project in the McMurdo Dry Valleys of Antarctica, a systematic sampling program has been undertaken to monitor the glacial meltwater streams in that region. This table contains data for the total volume of water discharged in various streams and basins of Taylor Valley. The data covers melt periods from 1991-92 through 1996-97.
McMurdo Dry Valleys Nitrogen and Phosphorus Dynamics in Green Creek, January 1995. Field and Modeling data
McMurdo Dry Valleys, Antarctica, contain numerous glacial meltwater streams that drain into lakes on the valley floors. Many of the streams have abundant perennial mats of filamentous cyanobacteria. The algal mats grow during streamflow in the austral summer and are in a dormant freeze-dried state during the rest of the year. NO3 and soluble reactive P (SRP) concentrations were lower in streams with abundant algal mats than in streams with sparse algal mats. Here we describe and distribute the data associated with this study: An experimental injection of LiCl, NaNO3, and K3PO4 was conducted in Green Creek, which has abundant algal mats. Substantial hyporheic exchange occurred. A model in which PO4 uptake occurred only in the main channel and NO3 uptake occurred in the main channel and in the hyporheic zone. Green Creek (Gooseff, 2015) aerial flowing into Fryxell
McMurdo Dry Valleys Metacommunity dynamics simulations for diatoms in Antarctic ponds
We use metacommunity simulations to understand how local and regional community assembly dynamics influence the regional biodiversity patterns that we observe in the McMurdo Dry Valleys ecosystem. A metacommunity refers to a network of communities in an ecosystem that are connected to one another by the dispersal of biota among sites. For example, ponds in the McMurdo Dry Valleys share common diatom species that are likely dispersed among neighboring ponds by wind. We have written a metacommunity model for the R programming language (MCSim, Sokol et al. 2015) to explore what biodiversity patterns look like for different metacommunity connectivity scenarios. This gives us the opportunity to model alternative hypotheses and explore how biodiversity metrics, such as beta-diversity, can be expected to respond to changing ecosystem connectivity for different sets of assumptions about the underlying dynamics that could potentially control biodiversity in the Dry Valleys.Â
McMurdo Dry Valleys Glacier melt modeling: Air Temperature 1996-2011
This is the data and metatada for modeled Air Temperature - part of six modeled parameters that comprise the Taylor Valley Galcier Melt modeling Data contained and described in this document correspond to the physically-based surface energy balance model for the glaciers of Taylor Valley developed by the dataset owners. The spatial variability in ablation (ice melt and sublimation), runoff, and climate sensitivity of the glaciers was modeled using 16 years of meteorological and surface mass balance (the net mass gain or loss of ice on the surface of the glacier) observations collected in Taylor Valley (see figure).  An unusual aspect of the model is the inclusion of transmission of solar radiation into the ice and subsequent drainage of some subsurface melt .  Melt model was applied to the ablation zones of the glaciers of Taylor Valley, identified by colored areas. Mass balance stakes, meteorological stations, and stream gages shown for reference. This dataset package is part of a 6-pack multi-set, which you can find at http://mcmlter.org The input files, parameters and examples are found in this package: http://mcmlter.org/content/glacier-melt-modeling-inputs-and-example-m-file-reader
McMurdo Dry Valleys Glacier melt modeling: Inputs and example m-file reader
This is the data and metatada for the micromet inputs - the parameter and support data to produce six modeled parameters that comprise the Taylor Valley Galcier Melt modeling datasets Data contained and described in this document correspond to the physically-based surface energy balance model for the glaciers of Taylor Valley developed by the dataset owners. The spatial variability in ablation (ice melt and sublimation), runoff, and climate sensitivity of the glaciers was modeled using 16 years of meteorological and surface mass balance (the net mass gain or loss of ice on the surface of the glacier) observations collected in Taylor Valley (see figure).  An unusual aspect of the model is the inclusion of transmission of solar radiation into the ice and subsequent drainage of some subsurface melt .  Melt model was applied to the ablation zones of the glaciers of Taylor Valley, identified by colored areas. Mass balance stakes, meteorological stations, and stream gages shown for reference. This dataset package includes input files necessary to run the simulations, see the companion output dataset packages to re-use micromet data. In here you will find: The 250m Digital Elevation Model (DEIM) used in the modeling process as ascii - spotdem250.txt, by Matthew Hoffman The landcover data used in the modeling process as ascii - tv_landcover_met.txt -by Matthew Hoffman. The locations of met stations used to inform the MicroMet model can be found in met_station_locations.xlsx (Excel format) An example MATLAB script for visualizing MicroMet generated met data grids is also included, here. grid_viz_example.m The parameter file used to run MicroMet through snowmodel is snowmodel.par.Â
McMurdo Dry Valleys Glacier melt modeling: Wind Speed 1996-2011
This is the data and metatada for modeled Wind Speed - part of six modeled parameters that comprise the Taylor Valley Galcier Melt modeling Data contained and described in this document correspond to the physically-based surface energy balance model for the glaciers of Taylor Valley developed by the dataset owners. The spatial variability in ablation (ice melt and sublimation), runoff, and climate sensitivity of the glaciers was modeled using 16 years of meteorological and surface mass balance (the net mass gain or loss of ice on the surface of the glacier) observations collected in Taylor Valley (see figure).  An unusual aspect of the model is the inclusion of transmission of solar radiation into the ice and subsequent drainage of some subsurface melt .  Melt model was applied to the ablation zones of the glaciers of Taylor Valley, identified by colored areas. Mass balance stakes, meteorological stations, and stream gages shown for reference. This dataset package is part of a 6-pack multi-set, which you can find at http://mcmlter.org The input files, parameters and examples are found in this package: http://mcmlter.org/content/glacier-melt-modeling-inputs-and-example-m-file-reader
McMurdo Dry Valleys Garwood River Gage Measurements, 1988-91
As part of the Long Term Ecological Research (LTER) project in the McMurdo Dry Valleys of Antarctica, a systematic sampling program has been undertaken to monitor the glacial meltwater streams in that region. These tables contain data pertaining to continuous monitored water quality and quantity parameters measured with automatic recording devices on streams in this region.The metadata here describes pre-LTER hydrology measurements at the Garwood River gage, from 1988 to 1991.
Ammonium desorption of hyporheic sediments from Von Guerard Stream, McMurdo Dry Valleys, Antarctica (January 2019)
This data package provides analytic results for a laboratory assay on sediment samples collected in January 2019 from a transect (“P2”) across Von Guerard Stream (as described by Heindel et al. 2021), located in Taylor Valley, McMurdo Dry Valleys, Antarctica. We used excess sample from that study in a laboratory desorption assay to assess conductivity dependent desorption of ammonium. The assay was performed by mixing samples with potassium chloride treatment solutions that replicate the range of specific conductivities observed in Von Guerard Stream, shaking and centrifuging slurries, and analyzing filtered supernatant.
McMurdo Dry Valleys Stream Scanned Field Notes
As part of the Long Term Ecological Research (LTER) project in the McMurdo Dry Valleys of Antarctica, a systematic sampling program has been undertaken to monitor the glacial meltwater streams in that region. The table contains scanned images of handwritten field notes
Soil lysimeter chemistry data from various locations on Niwot Ridge and in the Green Lakes Valley 1994 - 2013.
Water was collected from soil lysimeters at key sites across Niwot Ridge and the Green Lakes Valley in the tundra and subalpine forest. Zero-tension soil lysimeters in the City of Boulder Watershed were deployed in the mid-1980’s. Additional zero-tension lysimeters were installed at Subnivean and Soddie sites in 1997. At c1 in 2010, 12 Tension lysimeters (Soil Moisture Equipment Corp Model 1900 Soil Water Sampler ) were installed at C1.SO, C1.ST and C1.SW sites, with four lysimeters at each site. In 2012, 15 additional zero tension lysimeters were installed in the City of Boulder Watershed at Gl5, Arikaree, and D1 locations (with 5 lysimeters at each site).
Genetic and extracellular enzyme survey of planktonic communities of aquatic habitats in Green Lakes Valley, 2017
Preliminary work done in the soils of Green Lakes Valley (GLV) has shown that the microbial communities are generally carbon and phosphorus limited. While most working examining nutrient limitations in GLV has focused on the terrestrial environment, the aquatic environments lack the same study. Longterm monitoring of the lakes in GLV show that there are shifts in carbon availability (quantity and quality) over course of the Colorado alpine growing season. These shifts have been attributed to changes in the source of DOC as snow packs melt out and flow rates decline in the valley altering the ratio of internal (autochthonous) to external (allochthonous) carbon input to the lakes. We examined the links between the biogeography of planktonic communities and the functional response of those communities to shifting nutrient limitations to test the idea that nutrient limitation and composition of planktonic communities are linked both temporally and spatially in GLV. We determined the composition of GLV’s planktonic communities using amplicon sequencing of the small ribosomal subunit sequences (16S, 18S rDNA) and determined nutrient limitations using extracellular enzyme activity (EEA) assays to examine if communities shifted in conjunction with shifts in EEA. We observed that shifting composition in the planktonic communities of GLV mirrored shifts in nutrient limitation (primarily carbon and phosphorus limitation) over the course of the alpine growing season. Alpine and sub-alpine lakes showed opposite trends in the EEA of carbon acquisition enzymes while all lakes showed high activity for phosphorus acquisition enzymes. The planktonic communities were consistently phosphorus limited throughout the study, but carbon limitation was relieved in the alpine lakes as the season progressed while sub-alpine lakes became more carbon limited. The most likely mechanism behind the observed shifts in carbon limitation are the previously studied shifts where DOC is sourced in the va
Macroinvertebrate trait, abundance and site quality data from the Green Lakes Valley, 2018
This research was conducted to get a sense of the current spatial distribution of benthic macroinvertebrates among various aquatic habitats throughout the Green Lakes Valley. Benthic macroinvertebrates are small organisms that lack a backbone (invertebrate), live on the bottom (benthic), and are visible with the naked eye (macro). To estimate the community structure of benthic macroinvertebrates communities, 53 benthic macroinvertebrate samples were collected over the summer of 2018 from three alpine lakes and two streams in the Green Lakes Valley, CO at multiple points throughout the season. Benthic macroinvertebrates were sampled from the shoreline, inlet (inflow of water), and outlet (outflow of water) of each sampled lake, alongside estimates for habitat quality like surrounding vegetation, temperature (C°), rock volume (L), nitrate (mg/L,) pH, and dissolved oxygen saturation. The methods from this survey are broadly consistent with historic surveys ranging from 1960 to 1987 that have also sought to characterize aquatic invertebrate community composition within the Green Lakes Valley (Bushnell et al. 1987 The Great Basin Naturalist).
Genetic survey of bacterioplankton communities of aquatic habitats in Green Lakes Valley, 2014 - 2017
Previous work has shown high-elevation ecosystems are especially susceptible to the effects of climate change, but little work has been done on microbial communities in high-elevation aquatic systems. Therefore, my research aimed to improve our understanding of the composition, stability, and factors controlling microbial communities in high-elevation lakes in the Front Range of the Colorado Rocky Mountains. I studied seasonal and inter-annual variations in bacterial (16S rDNA) and eukaryotic (18S rDNA) microbial communities at multiple locations (inlet, outlet, three depths in the water column) within alpine lakes over four years (2014-2017). Communities significantly differed between lake inlets and the lakes as a whole across sampling dates. The most significant variable controlling 16S and 18S community composition was lake discharge rate, indicating that water residence times play a strong role in structuring communities.
Genetic survey of eukaryotic plankton communities of aquatic habitats in Green Lakes Valley, 2014 - 2017
Previous work has shown high-elevation ecosystems are especially susceptible to the effects of climate change, but little work has been done on microbial communities in high-elevation aquatic systems. Therefore, my research aimed to improve our understanding of the composition, stability, and factors controlling microbial communities in high-elevation lakes in the Front Range of the Colorado Rocky Mountains. I studied seasonal and inter-annual variations in bacterial (16S rDNA) and eukaryotic (18S rDNA) microbial communities at multiple locations (inlet, outlet, three depths in the water column) within alpine lakes over four years (2014-2017). Communities significantly differed between lake inlets and the lakes as a whole across sampling dates. The most significant variable controlling 16S and 18S community composition was lake discharge rate, indicating that water residence times play a strong role in structuring communities.
Benthos data from the Green Lakes Valley Flowage System, 1981 - 1982
Data were collected on benthic invertebrates in the Green Lakes flowage system during 1981 and 1982. Benthic organisms have been studied in terms of taxonomic community structure, diversity, and seasonal changes using rock-picking techniques in the lakes and Surber-sampling methods in the streams. Preliminary examination suggests a high degree of similarity in faunal components between years. In general, more taxa were found in streams than in lakes and there was a slight decrease in the number of taxa at most sites as elevation increased except for simuliids and chironomids in Stream 5. This trend was not noted for the Surber samples.
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.