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27 results for “bedload”
Dataset: Meltwater discharge, suspended sediment and bedload flux, air temperature and precipitation at the Otemma Glacier terminus (2022 melt season)
<p>This dataset extends existing timeseries from the Otemma Glacier terminus on meltwater discharge (Müller and Miesen, 2022), suspended sediment and bedload flux (Mancini et al., 2023a), and air temperature and precipitation (Müller, 2022) into the 2022 melt season. The methodologies used for data collection were consistent with those used in previous years (see included technical report). Water and sediment flux measurements were performed at gauging station GS1 (aka Station 1) located in the main proglacial river, approx. 0.35 downstream of the glacier terminus (Müller and Miesen, 2022; Mancini et al., 2023a). Air temperature and precipitation data were collected at the "Glacier snout station" adjacent to GS1 (Müller, 2022). Data collection specifics for the 2022 melt season are provided in the <code>report2022.pdf</code> file.</p> <p><strong>DATA:</strong><br><code>river.csv</code> - water and sediment flux timeseries from GS1 with columns:<br>year: yyyy<br>frac_day: fractional day of the year<br>dt: measurement interval [mins]<br>Qw: meltwater discharge [m3/s]<br>Qss: suspended sediment flux [kg/s]<br>Qb: bedload flux [kg/s]<br>Q<em>xx</em>_lo or Q<em>xx</em>_hi: the lower and upper uncertainty bounds for Qw, Qss, Qb [kg/s]<br><em>Extended data for 2020 and 2021 melt seasons also included*</em></p> <p><code>weather.csv</code> - air temperature and precipitation timeseries spanning 18 Nov 2021 to 16 Aug 2022 from 'Glacier snout station' with columns:<br>datetime: local time (UTC+01 with DST) [yyyy-mm-dd hh:mm:ss] <br>temperature: air temperature [°C]<br>precipitation: liquid or solid precipitation [mm w.eq.]</p> <p><em>*Extended flux datasets are also provided for 2020 and 2021 given the difference in scope between Mancini et al. (2023b) and Jenkin et al. (2024, submitted for review). The datasets in Mancini et al. (2023b) have been post-processed for comparative analysis between two different gauging stations (upstream and downstream), while in this work, the most temporally complete timeseries of subglacial sediment export at the upstream gauging station was required. Therefore, the data provided here for 2020 and 2021 include: (i) a short extension of the timeseries, (ii) the removal of a suspended sediment clipping threshold, and (iii) filling of gaps in the 2020 suspended sediment timeseries with real measured data.</em></p>
Replication data for: Spatiotemporal Bedload Transport Patterns Over Two-Dimensional Bedforms
<p>Sediment transport images and Acoustic Doppler Velocitmetry data files associated with the manuscript "Spatiotemporal Bedload Transport Patterns Over Two-Dimensional Bedforms"</p> <p>Authors: Kate Potter Leary, Leah Tevis, and Mark Schmeeckle</p>
Electronic Supplement to "Bedload transport's scaling behavior: what if Bagnold was right?"
<p>Here we provide all the data used for our paper entitled "Bedload transport's scaling behavior: what if Bagnold was right?". The deposit contains:</p> <ol> <li>All the Mathematica notebooks used for plotting the figures in the article and its supplement.</li> <li>Five spreadsheets with all the data: pipe-data (bedload data from pipe flows), flume-data (bedload data from laboratory flumes), Data_Bunte (bedload in the Rockies), Data_USFD (bedload in Idaho and Nevada), and Data_other_sites (bedload in other sites)</li> <li>An electronic supplement providing further information.</li> </ol>
Calculation results of the interaction between wet-dry weathering and bedload induced abrasion
<p>Calculation results of the interaction between wet-dry weathering and bedload induced abrasion</p>
Suspended and bedload transport in an open channel laboratory flume
<p>Notwithstanding the large number of studies on bedforms such as dunes and antidunes, performing quantitative predictions of bedform type and geometry remains an open problem. Here we present the results of laboratory experiments specifically designed to study how sediment supply and caliber may impact equilibrium bedform type and geometry in the upper regime. Experiments were performed in a sediment feed flume with flow rates varying between 8 l/s and 15 l/s, sand supply rates varying between 0.6 kg/min and 16 kg/min, uniform and non-uniform sediment grain sizes with geometric mean diameter varying between 0.22 mm and 0.87 mm. The experimental data and the comparison with datasets available in the literature revealed that the ratio of the volume transport of sediment to the volume transport of water <em>Q<sub>s</sub></em>/<em>Q<sub>w</sub></em> plays a prime control in the equilibrium bed configuration. The equilibrium bed configuration transitions from washed-out dunes (lower regime), to downstream migrating antidunes (upper regime) for <em>Q<sub>s</sub></em>/<em>Q<sub>w</sub></em> between 0.0003 and 0.0007. For values of <em>Q<sub>s</sub></em>/<em>Q<sub>w</sub></em> greater than those typical of downstream migrating antidunes, the bedform wavelength increases with <em>Q<sub>s</sub></em>/<em>Q<sub>w</sub></em>. At these high values of <em>Q<sub>s</sub></em>/<em>Q<sub>w</sub></em> equilibrium bed configurations with fine sand are characterized by upstream migrating antidunes or cyclic steps, and significant suspended load. In experiments with coarse sand, equilibrium is characterized by plane bed with bedload transport in sheet flow mode. Standing waves form at the transition between downstream migrating antidunes and bed configurations with upstream migrating bedforms. </p>
Suspended and bedload transport in an open channel laboratory flume
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On how episodic sediment supply influences the evolution of channel morphology, bedload transport and channel stability in an experimental step-pool channel
<p>This repository contains experimental data used in the manuscript "On how episodic sediment supply influences the evolution of channel morphology, bedload transport and channel stability in an experimental step-pool channel" submitted to <em>Water Resources Research</em> by Wang et al.</p> <p>- The docx file contains the information of experimental sediments and the names of the four txt files. </p> <p>- The four txt files contain the post-processed experimental data on hydraulics, bedload transport, bed surface characteristics, and the threshold for motion, and step information. </p>
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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.