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2,021 results for “valley”
Wetlands litter decomposition data for Green Lakes Valley, 1986 - 1994.
Long-term observations on decomposition of refractory willow leaves and twigs, Carex leaves, and filter paper began in 1986. Litter-bag experiments using pre-abscission willow leaves began in 1988.
Soil chemical and physical property data for Green Lakes Valley, 1982 - 1983.
The genesis and water chemistry of two soil catenas and mineralogy of eolian dust were studied to evaluate the capacity of these soils to buffer acid conditions. Field and laboratory analyses of 50 soil pits and three eolian dust traps indicated that the surface horizons are mainly eolian dust accumulation and the subsurface horizons differed in texture, organic carbon percentage, bulk density, pH, concentration of soluble and exchangeable ions, dissolved organic carbon, and distribution and concentration of clay materials. The chemistry and mineralogy of the eolian dust resemble those of the surface horizons. Calcite, which increases soil buffering capacity, was found in the eolian dust. The eolian calcite probably comes from western Colorado, where limestone exposures are common. This natural liming process may reduce effects of acid rain on the aquatic system.
Snow pit chemistry data for Niwot Ridge and Green Lakes Valley, 1993 - 2000.
Snow pits were excavated at various locations on Niwot Ridge and within the Green Lakes Valley. Temperature and snow density were measured at various depths throughout the snow cover profiles in order to characterize the temperature and snow water equivalent (SWE) of the snowpack throughout the year. Snow density was measured at 10-cm intervals using a 1000-ml cutter. Data on snow grain qualities were collected beginning in the 1994-95 snow season. Snow samples were collected and analyzed for cations and anions at the Mountain Research Station's Kiowa Laboratory.
Groundwater Well Data from the Middle Rio Grande Valley Riparian Zone, New Mexico (1999-2014)
This study originated with the objective of parameterizing riparian evapotranspiration (ET) in the water budget of the middle Rio Grande of New Mexico. We hypothesized that flooding and invasions of non-native species would impact the ecosystem's use of water. Our objectives were to measure and compare the ET of native (Rio Grande cottonwood, Populus deltoides ssp. wizleni) and non-native (saltcedar, Tamarix chinensis, Russian olive, Eleagnus angustifolia) bosque (woodland) communities and to evaluate how water use is affected by climatic variability resulting in high river flows and flooding as well as drought conditions and deep water tables. This data set contains water table levels monitored at nine sites along the Rio Grande riparian corridor between Albuquerque and Bosque del Apache National Wildlife Refuge. Data date to 1999. Two sites remain active and are well into their second decade of monitoring. One is in a xero-riparian, non-flooding, saltcedar woodland within the Sevilleta National Wildlife Refuge. The other is in a dense, monotypic saltcedar thicket at the Bosque del Apache NWR that is subject to flood pulses associated with high river flows.
Preliminary catalogue of High Agri Valley seismicity (southern Italy) recorded by the temporary INSIEME network.
<p>The preliminary catalogue is a comma-separated values (CSV) file which lists the preliminary location and magnitude estimation of 852 local natural and induced earthquakes occurred between September 2016 and March 2019. The catalogue has been produced with the Origin Locator Viewer (scolv) tool of the software SeisComP3 (<a href="https://www.seiscomp3.org">https://www.seiscomp3.org</a>) running on the server of the INSIEME seismic network (<a href="https://doi.org/10.7914/SN/3F_2016">https://doi.org/10.7914/SN/3F_2016</a>). The information included in this catalogue should be considered preliminary both in terms of earthquake location and local magnitude (ML) estimation.</p> <p>Each row of the CSV file indicates the following source parameters:</p> <p><em>ORIGIN TIME (UTC), LATITUDE </em>˚<em>N, LONGITUDE </em>˚<em>E, DEPTH (KM), MAGNITUDE (ML)</em></p> <p>---</p> <p>This file belongs to the Supplement of the article: Stabile, T. A., Serlenga, V., Satriano, C., Romanelli, M., Gueguen, E., Gallipoli, M. R., Ripepi, E., Saurel, J.-M., Panebianco, S., Bellanova, J., and Priolo, E.: The INSIEME seismic network: a research infrastructure for studying induced seismicity in the High Agri Valley (southern Italy), Earth Syst. Sci. Data, <a href="https://doi.org/10.5194/essd-2019-113">https://doi.org/10.5194/essd-2019-113</a>, 2020.</p>
Data from: Ostracods from the end-Permian mass extinction in the Aras Valley section (Northwest Iran)
<p>The Aras Valley section (NW Iran) exposes a sedimentary succession that allows to study ostracod diversity patterns during/across the end-Permian mass extinction because of its ubiquitous fossil record. For the present study, 59 samples were investigated for their ostracod abundances, which ranged from 4 to 31500 specimens per 500 g. In 45 sample horizons, the ostracods were identified to the species-level. In total, 3,425 specimens were determined and 62 species were identified, of which one genus and ten species are described for the first time: <i>Fabalicypris</i> <i>veronicae </i>Gliwa, sp. nov., <i>Orthobairdia capuliformis</i> Gliwa, sp. nov., <i>Araxobairdia formosa</i> Gliwa, gen. et sp. nov., <i>Bairdiacypris kathleenae</i> Gliwa, sp. nov., <i>Eumiraculum mettei</i> Gliwa, sp. nov., <i>Liuzhinia julfensis </i>Gliwa, sp. nov., <i>Carinaknightina hofmanni</i> Gliwa, sp. nov., <i>Cavellina fosteri</i> Gliwa, sp. nov., <i>Cavellina hairapetiani</i> Gliwa, sp. nov. and <i>Hungaroleberis striatus</i> Forel, sp. nov. The assemblages show, at the end-Permian mass extinction event, a complete turnover from a low-diversity <i>Fabalicypris</i>-dominated pre-extinction community to a more diverse <i>Bairdiacypris</i>-dominated post-extinction community. The turnover coincides with the significant temperature increase that was previously recorded from NW Iranian sections. The low diversity in the horizon immediately below the extinction horizon indicates that environmental changes, such as thermal stress, may have had an impact on the ostracod assemblages prior to the extinction event. In comparison with other diverse ostracod assemblages from the Palaeotethyan realm, the ostracods of the Aras Valley section are not associated with microbialites.</p>
Data and scripts for: Intercomparison of atmospheric datasets and PBL schemes for precipitation downscaling over a coastal mountain valley of northern British Columbia, Canada
<p>anl_6MYJdiv and anl_6MYNNdiv contains pairwise normalizations of dataset outputs (NAM/ERA5, NAM/NARR and ERA5/NARR) of total rainfall in 2017 for simulations with the MYJ and MYNN3 PBL schemes, that can be plotted by fig3_4.ncl. anl_MYJMYNN_div contains MYJ/MYNN3 spatial contours for each of ERA5, NAM -ANL and NARR outputs. anl_snow_MYJ contains MYJ output for total snow in 2017 by the ERA5, NAM-ANL and NARR datasets, for which values at discrete locations can be retrieved with yr2017snow.ncl, daily_ppt.ncl is script to extract modeled daily precipitation (dly_MYJ and dly_MYNN) from the various locations. Fig_ppt_monthly.R is the plotting script for observed and modeled precipitation time series from hydro31pt1pk.txt. nullwrf is array holder for plotting with ncl scripts. rivs_coasts.shp is shape file that is used in the spatial plots. </p>
Botanical Analysis of Middle Horizon (AD 600-1000) Archaeological Contexts of the Upper Majes Valley, Arequipa Peru
<p>In 2019, paleobotanical analyses were conducted by the laboratory Arqueobios, Inc. located in Trujillo, Peru under the supervision of Víctor F. Vásquez Sánchez. Samples were collected from archaeological contexts from four sites that correspond to the Middle Horizon period (AD 600-1000) including Santa Rosa II, La Angostura, El Tambo, and Pakaytambo.</p> <p>Macrobotanical and microbotanical starch and phytolith analyses identified evidence of maize, potato, yuca, bottle gourd, and a variety of wild species.</p> <p>This data is a component of the PhD dissertation entitled <em>Networks of Empire: The Role of Infrastructure in Wari State Expansion in Arequipa, Peru (AD 600-1000)</em> by David A. Reid (University of Illinois at Chicago).</p> <p>Funding was provided by the National Science Foundation’s Doctoral Dissertation Research Improvement Award (#1854651).</p>
Data from: Decoupled responses of soil bacteria and their invertebrate consumer to warming, but not freeze-thaw cycles, in the Antarctic Dry Valleys
Altered temperature profiles resulting in increased warming and freeze–thaw cycle (FTC) frequency pose great ecological challenges to organisms in alpine and polar ecosystems. We performed a laboratory microcosm experiment to investigate how temperature variability affects soil bacterial cell numbers, and abundance and traits of soil microfauna (the microbivorous nematode Scottnema lindsayae) from McMurdo Dry Valleys, Antarctica. FTCs and constant freezing shifted nematode body size distribution towards large individuals, driven by higher mortality among smaller individuals. FTCs reduced both bacterial and nematode abundance, but bacterial cell numbers also declined under warming, demonstrating decoupled consumer–prey responses. We predict that higher occurrence of FTCs in cold ecosystems will select for large body size within soil microinvertebrates and overall reduce their abundance. In contrast, warm temperatures without FTCs could lead to divergent responses in soil bacteria and their microinvertebrate consumers, potentially affecting energy and nutrient transfer rates in soil food webs of cold ecosystems.
Figure 8 in Taxonomic key to the snakes (Squamata: Ophidia) species of the Itajaí Valley, Santa Catarina, Brazil
Figure 8. Comparative ventral view of: (A) Oxyrhopus clathratus Duméril, Bibron & Duméril, 1854 and (B) Oxyrhopus rhombifer Duméril, Bibron & Duméril, 1854.
Figure 7 in Taxonomic key to the snakes (Squamata: Ophidia) species of the Itajaí Valley, Santa Catarina, Brazil
Figure 7. Comparative ventral view of: (A) Dipsas ventrimaculata (Boulenger, 1885) and (B) Dipsas neuwiedi (Ihering, 1911).
Figure 6 in Taxonomic key to the snakes (Squamata: Ophidia) species of the Itajaí Valley, Santa Catarina, Brazil
Figure 6. Comparative lateral view of coral snakes midbody: (A) Micrurus altirostris (Cope 1859), showing rings grouped in triads and (B) Micrurus corallinus (Merrem 1820) showing rings grouped in monads.
Figure 5 in Taxonomic key to the snakes (Squamata: Ophidia) species of the Itajaí Valley, Santa Catarina, Brazil
Figure 5. Lateral view of general snake heads showing different dentitions (A) proteroglyph (B) aglyph and (C) opistoglyph.
Figure 3 in Taxonomic key to the snakes (Squamata: Ophidia) species of the Itajaí Valley, Santa Catarina, Brazil
Figure 3. Lateral view of a general snake: (A) indistinct dorsal and ventral scales (B) distinct dorsal and ventral scales.
Figure 2 in Taxonomic key to the snakes (Squamata: Ophidia) species of the Itajaí Valley, Santa Catarina, Brazil
Figure 2. Overview of dorsal scales (A) smooth (B) keeled (C) with two apical pits (D) with one apical pit.
Valley of the Kings Tombs – Luxor, Egypt
The Valley of the Kings is a valley west of modern Luxor (ancient Thebes) in Egypt where, for nearly 500 years from the 16th to 11th century BC, tombs were excavated for the pharaohs and powerful nobles of the New Kingdom. This valley held the burial for some of the most well-known pharaohs in history, including Thutmose III, Ramesses II (The Great), and Tutankhamun. -Nate Loper Source: Objaverse 1.0 / Sketchfab
Holwick Drumlin River Tees Glaciated Valley
More information at http://www.bbc.co.uk/schools/gcsebitesize/geography/glacial_landscapes/glacial_deposition_landforms_rev1.shtml Source: Objaverse 1.0 / Sketchfab
Ursus arctos microsatellite fragment sizing, Chilkoot Valley, Alaska, USA 2014
<p>Microsatellite genoytping fragment sizing for 460 non-invasively collected saliva and fecal samples from brown bears (<em>Ursus arctos</em>) in northern Southeast Alaska, USA during summer and fall 2014.<br /> </p>
Figure 3a. - The typical alpine environment in the high Varaita valley where the caves colonized by Pimoadelphinica are found.
Figure 3a. - The typical alpine environment in the high Varaita valley where the caves colonized by Pimoadelphinica are found.
Figure 3a. - The typical alpine environment in the high Varaita valley where the caves colonized by Pimoadelphinica are found.
Figure 3a. - The typical alpine environment in the high Varaita valley where the caves colonized by Pimoadelphinica are found.
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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.