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772 results for “fronts”
Rutor glacier fronts footprints
<p>Footprints of the various glacial fronts obtained from the elaborated cartographic products: orthophoto from August 2017 satellite imagery, September 2020 aerial orthophoto, July 2021 UAV orthophoto, and September 2021 aerial orthophoto.</p>
Modeling abrupt excursions in water vapor isotopic variability during cold fronts at the Pointe Benedicte observatory in Amsterdam Island / Model dataset
<p>ECHAM6wiso and LMDZ6iso simulations, and python script analyzing model outputs, associated with the article :</p> <ul> <li>Amaelle Landais, Cécile Agosta, Françoise Vimeux, Olivier Magand, Cyrielle Solis, Alexandre Cauquoin, Niels Dutrievoz, Camille Risi, Christophe Leroy Dos Santos, Elise Fourré, Olivier Cattani, Bénédicte Minster, Frédéric Prié, Mathieu Casado, Aurélien Dommergue, Yann Bertrand, and Martin Werner (submitted to <a href="https://www.atmospheric-chemistry-and-physics.net/">Atmospheric Chemistry and Physics</a>, 2023) Modeling abrupt excursions in water vapor isotopic variability during cold fronts at the Pointe Benedicte observatory in Amsterdam Island.</li> </ul> <p>If you use the data or the python script, please cite the last version of this article available on <a href="https://www.egusphere.net/">https://www.egusphere.net/</a> or <a href="https://acp.copernicus.org/">https://acp.copernicus.org/</a>.</p> <p>Please also cite the articles related to the model simulations:</p> <ul> <li> <p>Risi, C., Bony, S., Vimeux, F., and Jouzel, J.: Water-stable isotopes in the LMDZ4 general circulation model: Model evaluation for present-day and past climates and applications to climatic interpretations of tropical isotopic records, Journal of Geophysical Research Atmospheres, 115, https://doi.org/10.1029/2009JD013255, 2010.</p> </li> <li> <p>Cauquoin, A. and Werner, M.: High-Resolution Nudged Isotope Modeling With ECHAM6-Wiso: Impacts of Updated Model Physics and ERA5 Reanalysis Data, Journal of Advances in Modeling Earth Systems, 13, e2021MS002532, https://doi.org/10.1029/2021MS002532, 2021.</p> </li> <li> <p>Cauquoin, A., Werner, M., and Lohmann, G.: Water isotopes -- climate relationships for the mid-Holocene and preindustrial period simulated with an isotope-enabled version of MPI-ESM, Climate of the Past, 15, 1913–1937, https://doi.org/10.5194/cp-15-1913-2019, 2019.</p> </li> </ul>
SST_front_data: ocean thermal fronts detected by the Cayula and Cornillon SIED algorithm
<p>This dataset includes the post-processed data and a demo MATLAB script used for the paper titled "Global trends of fronts and chlorophyll in a warming ocean"</p> <p><strong>SST_FRONT_data.zip</strong> contains maps of sea surface temperature (SST) fronts detected by the Cayula and Cornillon single image edge detection algorithm over global ocean warming hotspot regions and covering the period 2003-2020. The original data was obtained from NASA OB.DAAC MODIS sea surface temperature (SST) product (MODIS Aqua Level 3 SST MID-IR 8 Day 4km Nighttime V2019.0: https://podaac.jpl.nasa.gov/dataset/MODIS_AQUA_L3_SST_MID-IR_8DAY_4KM_NIGHTTIME_V2019.0?ids=&values=&search=MODIS%20Aqua&provider=POCLOUD). </p> <p>SST_FRONT_data.zip also contains <strong>Fdens_Ffreq_Fstre_example.mlx</strong>, which<strong> </strong>is a MATLAB live script showing how to compute metrics of fronts based on frontal maps: frontal frequency (Ffreq), frontal density (Fdens), and frontal strength (Fstre). </p> <p><strong>Fdens_Ffreq_Fstre_example.pdf</strong> is intended for quick viewing of the script above.</p> <p> </p>
Atmospheric deposition across a Colorado Front Range elevation transect, monthly, 2017-2018
In this dataset, we present seasonal dust fluxes and composition from a Colorado Front Range elevation transect of nine sites extending from the developed plains to the alpine wilderness. From the beginning of November 2017 through the end of November 2018, we collected monthly bulk deposition samples and analyzed them for dust mass fluxes, particulate matter chemistry, and liquid fraction chemistry. Niwot Ridge sites were in operation from June 2018 through September 2018 and are a critical component of this collaboration with the Boulder Creek Critical Zone Observatory, which funded the lower elevation sites. These dust deposition data address open questions about the spatial and temporal variability of dust fluxes and composition across complex mountainous terrain.
Dataset of the scientific paper "A Comparative Analysis of 2D and 3D Tasks for Virtual Reality Therapies Based on Robotic-Assisted Neurorehabilitation for Post-stroke Patients" (Front. Aging Neurosci.)
<p> There are three files with the following information:<br> - data_2d.bin, binary file with information of the different parameters of the nine subjects during 2d tasks<br> - data_3d.bin, binary file with information of the different parameters of the nine subjects during 3d tasks<br> - survey.bin, binary file with the score of the System Usability Scale (SUS) survey of each subject</p>
Nicosia, Cyprus. Bedesten, portal removed from the west front.
<p>Nicosia, Cyprus. Bedesten, portal removed from the west front and placed in the garden of the Presidential Palace in 1913, detail of capitals and archivolts, as documented in 1989.</p>
Nicosia, Cyprus. Bedesten, portal removed from the west front.
<p>Nicosia, Cyprus. Bedesten, portal removed from the west front and placed in the garden of the Presidential Palace in 1913, as documented in 1989.</p>
Nicosia, Cyprus. Bedesten, portal removed from the west front.
<p>Nicosia, Cyprus. Bedesten, portal removed from the west front and placed in the garden of the Presidential Palace in 1913, as documented in 1989.</p>
Nicosia, Cyprus. Bedesten, portal removed from the west front in 1906.
<p>Nicosia, Cyprus. Bedesten, portal removed from the west front and placed in the garden of the Presidential Palace in 1913, according to the inscription thereon, as documented in 1989.</p>
Nicosia, Cyprus. Bedesten, portal removed from the west front.
<p>Nicosia, Cyprus. Bedesten, portal removed from the west front and placed in the garden of the Presidential Palace in 1913, detail of capitals, as documented in 1989.</p>
Nicosia, Cyprus. Bedesten, portal removed from the west front.
<p>Nicosia, Cyprus. Bedesten, portal removed from the west front and placed in the garden of the Presidential Palace in 1913, detail of archivolts, as documented in 1989.</p>
Data from Hesse et al. 2017: Preattentive Processing of Numerical Visual Information, Front Hum Neurosci., 11:70, 2017. doi: 10.3389/fnhum.2017.00070.
<p><strong>Data related to the following publication: </strong></p> <p>Hesse Philipp N., Schmitt Constanze, Klingenhoefer Steffen, Bremmer Frank (2017). Preattentive Processing of Numerical Visual Information. Frontiers in Human Neuroscience, 11: 70. doi: 10.3389/fnhum.2017.00070</p> <p><strong>Brief description of dataset:</strong></p> <p>The stimulus was presented on a TFT monitor (size: 41,8° x 24,3°) 52 cm in front of the participants in a dark, sound attenuated and electrically shielded room. During the experiment EEG was recorded continuously. We used 64 Ag/AgCl active electrodes located according to the extended international 10-20 system. </p> <p>The numerosity stimulus consisted of a continuously displayed black fixation target in the center of the gray screen. Additionally in each trial either one, two or three circular white patches were shown 200 ms after trial onset. These were presented for a random duration between 400 ms and 500 ms either in the left or right visual field. Two different types of patches were presented: i) the radius of the patches had the same value (0.65°) and therefore the patch size was the same (“SizeCon”) ii) the total area of the patches was conserved which resulted in the same total luminance independent of the number of patches (“LumCon”). After a random time between 400 ms and 700 ms after stimulus offset the trials ended.</p> <p>In this study we conducted an oddball experiment with an oddball-ratio of 1:4. In each block consisting of 30 trials a standard-amount of patches (one, two or three) was presented in 80% of all trials (24 trials). The two remaining quantities of patches were shown in 10% (3 trials) of the trials each. This presentation scheme allowed us to compare trials with identical physical properties because each amount of patches served as deviant and standard trial in different blocks. Attention of the participants was drawn off the white patches by a demanding detection task at the fixation target. A total number of 432 blocks consisting of 30 trials was presented to each of the 10 participants.</p> <p>EEG data were evaluated offline. The mastoids (TP9 and TP10) were chosen as new reference. A second-order, zero phase shift Butterworth filter with cutoff frequencies 0.5 and 40 Hz was applied to the continuously recorded data before it was sliced in individual trials that had a time range from 200 ms before to 500 ms after stimulus onset. A baseline correction was performed using with the signals from -110 ms to 0 ms. As a last step trials with eye movement artifacts or electrode signals that exceeded a difference of ±100 µV within an interval of 100 ms were excluded in an artifact rejection step.</p> <p> </p>
Data from: Multiple timescales of streambed flux variability in two perennial mountain-front streams
<p>Streambed fluxes are highly variable through time and space, having a range of implications for stream‐aquifer processes. This study investigated streambed fluxes over a 3‐year study period to characterize short‐ and long‐term variations and related implications for seepage recharge and hyporheic exchange. Time series of streambed fluxes were estimated through Darcy‐based methods using water level and temperature inputs from shallow (<1.5 m) nested streambed piezometers installed in two mountain‐front streams in Colorado, USA. Three predominant temporal scales of variability were characterized: sub‐daily (<1 day), daily (>1 day; <1 year), and interannual (>1 year). Temporal variability was quantified using the median absolute deviation (MAD), a statistical measure that is resistant to extreme values associated with short‐duration events. Sub‐daily variability (MADS‐D) was related to ET, temperature‐induced changes in hydraulic conductivity, and variable stream stage, and was quantified using the MAD of detrended fluxes (daily mean subtracted). Daily variability (MADD), calculated as the MAD of daily median fluxes for a given year, exceeded sub‐daily variability, and was influenced by strong seasonality at some sites. For individual sites and water years, the ratio of MADS‐D to MADD ranged from 0.03 to 0.70, with an average of 0.25. Annual median fluxes at each site varied across years, but typically remained consistent in order of magnitude and direction. Results reveal a strong linear correlation between the daily variability and the median annual flux at individual sites. Within a year, summer months characterized by stronger losing conditions showed greater overall variability. 1D numerical heat and flow modelling was performed to calibrate hydraulic parameters and to investigate temperature‐related controls for sub‐daily variations. We discuss implications of documented temporal variability for analyses of hyporheic exchange and groundwater recharge. Results provide a basis for quantifying temporal variations in streambed fluxes and highlight the extent to which fluxes vary over multiple timescales.</p>
Dataset for "Complexity of crack front geometry enhances toughness of brittle solids"
<div>This data package supports the publication</div> <div>'Complexity of crack front geometry enhances toughness of brittle solids'</div> <div>by Xinyue Wei, Chenzhuo Li, Cían McCarthy, and John M. Kolinski</div> <div>Nature physics (2024) - <span><a href="https://doi.org/10.1038/s41567-024-02435-x">https://doi.org/10.1038/s41567-024-02435-x</a></span></div> <div> </div> <div>DOI: 10.5281/zenodo.10604552</div> <div> </div> <div> </div> <div>The data package includes </div> <div>- data for material characterization in 'material_test.xlsx';</div> <div>- segmented 3D crack data in "segmented_3D_crack_stacks" folder.</div> <div> </div> <div> </div> <div>'material_test.xlsx' includes</div> <div>- shear modulus for Gel1, Gel2, Gel3, Gel4, and PDMS;</div> <div>- stretch v.s. engineering stress for the five materials.</div> <div> </div> <div> </div> <div>'segmented_3D_crack_stacks' includes</div> <div>- 'sample_info.xlsx': metadata for all the cracks including the critically loaded cracks and the cracks with local </div> <div> propagation in two sheets, with the following information:</div> <div>- 'crack_name' corresponds to the title of each tif file in the subfolders;</div> <div>- 'sample' indicates the material and thickness of the samples;</div> <div>- 'xy_scale_um' and 'z_scale_um' are the resolutions in microns in xyz direction ;</div> <div>- 's_start' and 's_end' provide the range of the valid slices, with s_end excluded. The first slice is s=0;</div> <div>- 'tile_s_start' and 'tile_s_end' provide the range of the valid slices of the tile scans. The tile scans </div> <div> are taken for the measurement of strain energy release rate from the far field CTOD. Since the field of </div> <div> view is large enough to cover the K-dominant region of Gel1, tile scan is not taken for Gel1;</div> <div>- 'remarks' are the comments for the data points (if applicable).</div> <div> </div> <div>- 'critically_loaded_cracks': tif stacks for the binarized 3D cracks that are loaded to critical state. </div> <div> Different materials and sample thicknesses are in separate folders. </div> <div>- 'local_propagation': tif stacks for the binarized 3D cracks before critically loaded. </div> <div> </div> <div> </div>
Cranes soar on thermal updrafts behind cold fronts as they migrate across the sea
<p>Thermal soaring conditions above the sea have long been assumed absent or too weak for terrestrial migrating birds, forcing large obligate soarers to take long detours and avoid sea crossing, and facultative soarers to cross exclusively by costly flapping flight. Thus, while atmospheric convection does develop at sea and is utilized by some seabirds, it has been largely ignored in avian migration research. Here we provide direct evidence for routine thermal soaring over open sea in the common crane, the heaviest facultative soarer known among terrestrial migrating birds. Using high-resolution biologging from 44 cranes tracked across their transcontinental migration over 4 years, we show that soaring characteristics and performance were no different over sea than over land in mid-latitudes. Sea-soaring occurred predominantly in autumn when large water-air temperature difference followed mid-latitude cyclones. Our findings challenge a fundamental paradigm in avian migration research and suggest that large soaring migrants avoid sea crossing not due to absence or weakness of thermals but due to their uncertainty and the costs of prolonged flapping. Marine cold air outbreaks, imperative to the global energy budget and climate system, may also be important for bird migration, calling for more multidisciplinary research across biological and atmospheric sciences.</p>
Operating diagram of larvae hatching module, this installation was used to determine the optimum larvae load during the rearing process and provided additional space for rearing several thousand larvae. It consists of nine 20-litre tanks with a glass panel along the front. They are fitted with an inlet supplying filtrated water at a rate of 100 l/h and an individual air inlet. in Reproduction of Zingel asper (Linnaeus, 1758) in controlled conditions: an assessment of the experiences realized since 2005 at the Besançon Natural History Museum
Operating diagram of larvae hatching module, this installation was used to determine the optimum larvae load during the rearing process and provided additional space for rearing several thousand larvae. It consists of nine 20-litre tanks with a glass panel along the front. They are fitted with an inlet supplying filtrated water at a rate of 100 l/h and an individual air inlet.
РИС. 8. Крючки глохидиев Amuranodonta kijaensis иЗ Зейского вдхр.: A, В. Вид спереди. С. Вид сбоку. D. МакроШипы. СканируюЩаЯ ЭлектроннаЯ микроскопиЯ. МасШтабные линейки: 40 мкм (А, В, D) и 25 мкм (С). FIG. 8. Glochidial hooks of Amuranodonta kijaensis from Zeya Reservoir: A, B. Front view; C. Side view. D. Macrospines. SEM. Scale bars: 40 µm (A, B, D) and 25 µm (C). in Новые данные об охранЯемом пресноводном двустворчатом моллюске Amuranodonta kijaensis Moskvicheva, 1973 (Unionidae, Anodontinae)
РИС. 8. Крючки глохидиев Amuranodonta kijaensis иЗ Зейского вдхр.: A, В. Вид спереди. С. Вид сбоку. D. МакроШипы. СканируюЩаЯ ЭлектроннаЯ микроскопиЯ. МасШтабные линейки: 40 мкм (А, В, D) и 25 мкм (С). FIG. 8. Glochidial hooks of Amuranodonta kijaensis from Zeya Reservoir: A, B. Front view; C. Side view. D. Macrospines. SEM. Scale bars: 40 µm (A, B, D) and 25 µm (C).
Output of simulations for "Atmosphere Response to an Oceanic Sub-mesoscale SST Front: A Coherent Structure Analysis": Part 1
<p>This dataset contains the output of the simulations for the paper "Atmosphere Response to an Oceanic Sub-mesoscale SST Front: A Coherent Structure Analysis" doi: [TO BE COMPLETED]. This is part 1. It contains data for the S1 simulation.</p>
Output of simulations for "Atmosphere Response to an Oceanic Sub-mesoscale SST Front: A Coherent Structure Analysis": Part 2
<p>This dataset contains the output of the simulations for the paper "Atmosphere Response to an Oceanic Sub-mesoscale SST Front: A Coherent Structure Analysis" doi: [TO BE COMPLETED]. This is part 2. It contains the remaining of data for the S1 simulation, the data of the reference simulations RefC and RefW, and the data for the sensitivity analysis of the supplementary material.</p>
Fig. 2 in Flock Size Measures Of Migrating Lesser White-Fronted Geese Anser Erythropus
Fig. 2. The distribution of Lesser White-fronted Geese flocks (above) and individuals (below) among flock size categories in the autumn at Hortobágy, 1994–2006
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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.