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1,245 results for “dating”
The DataCons Project: An Open-Access Archive of Late Roman Consular Dates
<p>The DataCons Project offers an open-access dataset of late Roman consular dating formulae from CE 284 to 541. Aimed at aggregating consular materials discovered globally, presently it contains over 4,800 documents penned in three distinct scripts, originating from ten regions of the late Roman world and categorised by material type and textual content.</p><p>With its roots in prominent scholarly references, every entry undergoes rigorous verification, including palaeographical assessments and exact transcription of dating formulae. Distinct columns highlight potential dating, the author's selected date, and further specificity, ensuring the dataset's precision. Its evolution promises broader temporal coverage, and its structure facilitates ease of use and extensive potential for interdisciplinary research.</p><p>The current version of the dataset (2.0.0) presents the Latin and Greek documentation dated CE 476 to 526, exclusively comprising papyri and inscriptions. It is anticipated that there will be periodic updates and an upcoming release of an online database titled <i>DataCons: The Digital Database of Late Roman Consular Dates</i>. This will enhance and support research utilising the DataCons dataset.</p>
Earliest snowmelt estimation dates for Arctic sea ice (2003)
<p>Earliest snowmelt estimation dates calculated for the year 2003 are provided using sea ice brightness temperatures from AMSR-E (Cavalieri et al., 2014) and DMSP SSM/I-SSMIS (Meier et al., 2019), as well as simulated sea ice brightness temperatures from the CESM2 JRA-55 (Danabasoglu et al., 2020; Kobayashi et al., 2015; Tsujino et al., 2018), which were created using the Arctic Ocean Observation Operator (ARC3O; Burgard et al, 2020a,b). Scripts and README files are provided for preparing the model data to act as input to ARC3O. </p>
Supplementary data to Dating the timbers from the 'Sparrow-Hawk', a shipwreck from Cape Cod, USA. Journal of Archaeological Science: Reports 103374
<p>This record gives access to all supplementary data that forms the background to the paper: Daly, A., Hocker, F. & Mires, C., 2022. Dating the timbers from the ‘Sparrow-Hawk’, a shipwreck from Cape Cod, USA. Journal of Archaeological Science: Reports https://doi.org/10.1016/j.jasrep.2022.103374</p> <p>In 1626, a vessel making its way to Virginia was forced off course and damaged in a storm, which drove the ship onto the eastern shore of the Cape Cod peninsula, Massachusetts. Onboard were two English merchants and some servants and farmers, many of whom were Irish. In 1863, a storm exposed the weathered remains of a vessel at Old Ship Harbor. At the time, it was hailed as the same ship that had brought the Virginia-bound passengers to Plymouth in 1626. Recent wiggle-match C14 dating and dendrochronology suggests that this is indeed a ship from the early seventeenth century.</p>
NERD (NEAR EAST RADIOCARBON DATES)
<p>The archive <strong>NERD</strong> provides a collation of <strong>11,072</strong> radiocarbon dates from <strong>1027</strong> archaeological sites in the Near East from the Late Pleistocene until the Late Holocene (15 - 1.5 cal. kyr BP). These dates have been collected from existing online digital archives, and electronic and print original publications. This is an <strong>ongoing dataset</strong> that will be updated step by step with new published radiocarbon dates. A detailed description of the present dataset is available via the following data paper: <strong>Palmisano, A., Bevan, A., Lawrence, D., and Shennan, S., 2022.<a href="https://openarchaeologydata.metajnl.com/articles/10.5334/joad.90/"> The NERD Dataset: Near East Radiocarbon Dates between 15,000 and 1,500 cal. yr. BP</a></strong>. <em>Journal of Open Archaeology Data</em>, <em>10</em>(2), 1-9.</p> <p>List of versions:</p> <ul> <li><strong>6.0</strong> 23 September 2022 — Removal of 12 duplicates and addition of 2 new dates (update of the files 'References.txt', 'nerd.csv', and 'Readme.md') on the basis of a data assessment on Cyprus dates provided by <a href="https://classics.cornell.edu/sturt-manning">Sturt Manning</a>.</li> <li><strong>5.0 </strong>25 March 2022 — 54 new dates added (update of the files 'References.txt', 'nerd.csv', and 'Readme.md').</li> <li><strong>4.0 </strong>8 December 2021 — 380 new dates added (update of the files 'References.txt', 'nerd.csv', and 'Readme.md').</li> <li><strong>3.0 </strong>7 April 2021 — 10 new dates added (update of the files 'References.txt', 'nerd.csv', and 'Readme.md').</li> <li><strong>2.0.</strong> 7 April 2021 — 31 new dates added (update of the files 'References.txt', 'nerd.csv', and 'Readme.md').</li> <li><strong>1.0 </strong> 6 April 2021 — First public release of the dataset on Zenodo</li> </ul>
Data from: Dating and morpho-stratigraphy of uplifted marine terraces in the Makran subduction zone (Iran)
<p>This data comes from the study of marine terraces from the Iranian Makran. This second version contains .zip compressed files instead of .rar .<br> A_files are seven terrace maps of the region of Jask, Tang, Gurdim, Konarak, Chabahar-Ramin, Lipar and Pasabander.<br> B_file are results of Radiocarbon and 230Th/U dating of mollusk shells from the marine deposits above the terraces.<br> C_file are results of Optically Stimulated Luminescence dating (OSL) of said deposits.<br> D_files are field pictures.<br> The data is published in support for the paper mentioned in the title (submitted to Earth Surface Dynamics).</p> <p>Brief description:<br> Terrace maps are accompanied with a datamodel excel file explaining the different GIS layers.<br> The maps are provided in both .KMZ files (for Google Earth) and Shapefiles</p> <p>Radiometric (i.e. both Radiocarbon and 230Th/U) analytical details are provided, together with XRD analysis of the Aragonitic shells and some SEM pictures of both Aragonitic and Calcitic shells. Method details are in the paper.</p> <p>OSL results are provided with the analytical details, such as: Environmental dose parameters, OSL raw measurements (out of the machine), OSL Histograms, Dose-Recovery tests and Fading test results. Method details are in the paper.</p> <p>Additional field pictures are provided with their legends (.txt file) and geolocalisation (.kmz file).</p>
Ramularia detection dates by country
<p>Dark and light themed maps showing the detection rate of ramularia by country. Detection rates are taken from the following two publications.</p> <pre>Walters, D. R., Havis, N. D., and Oxley, S. J. P. <strong>2008</strong>. Ramularia collo-cygni: the biology of an emerging pathogen of barley. FEMS Microbiology Letters 279:1–7. https://doi.org/10.1111/j.1574-6968.2007.00986.x </pre> <pre>Havis N. D., Brown J. K. M., Clemente G., Frei P., Jedryczka M., Kaczmarek J., Kaczmarek M., Matusinsky P., McGrann GRD., Pereyra S., Piotrowska M., Sghyer H., Tellier A., and Hess M., <strong>2015</strong>. Ramularia collo-cygni - an emerging pathogen of barley crops. Phytopathology 105: 895-904. https://doi.org/10.1094/PHYTO-11-14-0337-FI </pre> <p>Country outlines were taken from Natural Earth: http://www.naturalearthdata.com/downloads/50m-cultural-vectors/</p>
Gridded depth and accumulation products from dated airborne radar stratigraphy over West Antarctica during the mid-Holocene, v.1.0.0
<p>This dataset comprises of codes (written in MATLAB) and gridded files (exported as GeoTIFF) presented in Bodart et al. (2023; The Crysophere; <a href="https://doi.org/10.5194/tc-2022-199">https://doi.org/10.5194/tc-2022-199</a>). A summary of the key findings from this study is provided as follows:</p> <p>"Using a spatially extensive IRH over Pine Island Glacier, Thwaites Glacier, and Institute and Möller Ice Streams (covering a total of 610 000 km2 or 30% of the WAIS), and a local layer approximation model, we infer mid-Holocene accumulation rates over the slow-flowing parts of these catchments for the past ~4700 years. By comparing our results with modern climate reanalysis models (1979 – 2019) and observational syntheses (1651 – 2010), we estimate that accumulation rates over the Amundsen-Weddell-Ross divide were on average 18% higher during the mid-Holocene than modern rates. However, no significant spatial changes in the accumulation pattern were observed."</p> <p>This dataset contains a series of files (5x .m files, 10x .tif files). The numbering of the figures in the description below refers to the order of the figures in the associated paper.</p> <ul> <li><strong> 5x MATLAB files:</strong> <ul> <li><strong>Calculate_accumulation_rates.m</strong>: calculates accumulation rates for the mid-Holocene-to-present, as well as uncertainties associated with the age and model structural uncertainty;</li> <li><strong>Calculate_D_parameter.m</strong>: calculates the D parameter (and associated L_path, L_H and L_b) to assess the feasability of the LLA over our grid;</li> <li><strong>Calculate_longitudinal_strain_rates.m</strong>: calculates the longitudinal strain rates over our grid from modern ice-flow velocities;</li> <li><strong>Calculate_vertical_strain_rates.m</strong>: calculates vertical strain rates for the mid-Holocene-to-present part of the ice column from accumulation estimates;</li> <li><strong>Resample_IRH_data.m</strong>: Re-samples the along-track IRH data into evenly distributed 500-m points for speeding up the gridding and calculations of accumulation rates;<br> </li> </ul> </li> <li><strong>10x GeoTIFF files:</strong> <ul> <li><strong>Holocene_IRH_depth_Fig2a.tif: </strong>Figure 2a;</li> <li><strong>Holocene_accumulation_rates_Fig3a.tif:</strong> Figure 3a;</li> <li><strong>Difference_Holocene_accumulation_RACMO2_Fig3c.tif:</strong> Figure 3c;</li> <li><strong>Relative_difference_Holocene_accumulation_RACMO2_Fig4.tif:</strong> Figure 4;</li> <li><strong>D_parameter_FigS1d.tif:</strong> Figure S1d;</li> <li><strong>Holocene_vertical_strain_rates_FigS2a.tif: </strong>Figure S2a;</li> <li><strong>Longitudinal_strain_rates_FigS2b.tif:</strong> Figure S2b;</li> <li><strong>Holocene_accumulation_lower_uncertainty_FigS4a.tif:</strong> Figure S4a;</li> <li><strong>Holocene_accumulation_upper_uncertainty_FigS4b.tif:</strong> Figure S4b;</li> <li><strong>Holocene_accumulation_relative_uncertainty_FigS4c.tif: </strong>Figure S4c;</li> </ul> </li> </ul> <p>Please also cite the associated paper when using this dataset.</p> <p>Any questions, please direct them to the corresponding author, Julien Bodart (julien.bodart@ed.ac.uk).</p>
DATED: A Dataset of Centrifugal Compressors
<p>Dataset of 22 million centrifugal compressors with their performance predicted by a 1D mean-line analysis model. The train* and test* files are the ones used in the case study. The data is stored as parquet (Arrow) format.</p> <p>File descriptions:</p> <ul> <li>dated_real: Simulations of the 14 known geometries.</li> <li>dated_real_map: Simulations along a grid (to draw the compressor map) of the 14 known geometries.</li> <li>dated_real_perturbation_1M1: 1st Batch of 1M perturbed <em>real </em>compressors.</li> <li>dated_real_perturbation_1M2: 2nd Batch of 1M perturbed <em>real </em>compressors.</li> <li>dated_uniform_19M: Batch of 19M uniformly sampled compressors.</li> <li>dated_uniform_compact_1M: Batch of 1M uniformly sampled compressors on a reduced operating range.</li> <li>test_* and train_* contain the data to reproduce the case study of the associated paper.</li> </ul> <p>The dataset was generated to discuss guidelines for generating synthetic dataset for engineering design. However, it can also be used to train pre-design tools for centrifugal compressors.</p> <p>More information can be found on <a href="https://github.com/cyrilpic/radcomp">Github</a>.</p>
An annotated compilation of chronometric dates for the Middle-Upper Palaeolithic Transition (45-30 ka BP) in northern Iberia (Spain). Source Data.
<p>This repository contains the files of the chronometric dates framed between 45-30 ka BP in Northern Iberia.</p>
Eight Mile Lake Research Watershed, Carbon in Permafrost Experimental Heating Research (CiPEHR): Phenology of Dominant Plant Species III - Flowering Date 2013-2021
The Carbon in Permafrost Experimental Heating Research (CiPEHR) project addresses the following questions: 1) Does ecosystem warming cause a net release of C from the ecosystem to the atmosphere?, 2) Does the decomposition of old C, that comprises the bulk of the soil C pool, influence ecosystem C loss?, and 3) How do winter and summer warming alone, and in combination, affect ecosystem C exchange? We are answering these questions using a combination of field and laboratory experiments to measure ecosystem carbon balance and radiocarbon isotope ratios at a warming experiment located in an upland tundra field site near Healy, Alaska in the foothills of the Alaska Range. In this dataset we specifically ask, how does warming of soil and air impact the phenology of dominant plant species? Phenological data was collected to determine the timing of first bud break, onset and completion of senescence, and reproductive effort (flower and berry production).
Eight Mile Lake Research Watershed, Carbon in Permafrost Experimental Heating and Drying Research (DryPEHR): Phenology of Dominant Plant Species III - Flowering Date 2013-2021
This drying and warming experiment addresses the following questions: 1) Does ecosystem drying, warming and permafrost thaw cause a net release or uptake of C from the ecosystem to the atmosphere?, 2) Does the decomposition of old C that comprises the bulk of the soil C pool influence ecosystem C loss? 3) How do drying and warming affect plant communities and ecosystem properties? We are answering these questions using a combined warming and drying experiment (DryPEHR), which is situated with the Carbon in Permafrost Experimental Heating Research (CiPEHR) project and located in an upland tundra field site near Healy, Alaska in the foothills of the Alaska Range. Warming treatment here refers to growing season air temperature warming (~1C) using open top chambers (OTC) combined with soil 'warming' using snow fences during the snow covered months. Drying is achieved using an automated pumping system that lowers the water table in the dry plots. Soil warming began in 2008; OTCs and drying in 2011. In this dataset we specifically ask, how does warming and drying of soil and air impact the phenology of dominant plant species? Phenological data was collected to determine the timing of first bud break, onset and completion of senescence, and reproductive effort (flower and berry production).
Eight Mile Lake Research Watershed, Carbon in Permafrost Experimental Heating Research (CiPEHR): CiPEHR dates snow-free 2010-2025
The Carbon in Permafrost Experimental Heating Research (CiPEHR) project addresses the following questions: 1) Does ecosystem warming cause a net release of C from the ecosystem to the atmosphere?, 2) Does the decomposition of old C, that comprises the bulk of the soil C pool, influence ecosystem C loss?, and 3) How do winter and summer warming alone, and in combination, affect ecosystem C exchange? We are answering these questions using a combination of field and laboratory experiments to measure ecosystem carbon balance and radiocarbon isotope ratios at a warming experiment located in an upland tundra field site near Healy, Alaska in the foothills of the Alaska Range. This data set includes weekly thaw depth measurements collected from winter warming, summer warming, and control treatment plots at CiPEHR. Additional measurements from on-plot gas flux wells, water table monitoring wells, and off-plot locations are also reported. Note that the experimental warming portion of this experiment concluded in 2022. These data are a continuation of measurements taken at previously warmed plots but plots were not actively manipulated in 2023.
CCE LTER process cruise, in the California Current region, event log records including date, time, position and activity for use in post-cruise data integration based on co-sampling indexes. From 2006 to 2019 CCE LTER used a locally developed event logging system. During P2107, CCE LTER started to utilize the R2R Event Logger on UNOL ships, 2006 - 2024 (ongoing).
The event logger program developed and maintained by the California Cooperative Oceanic Fisheries Investigations, SIO, program is used aboard CCE LTER process cruises to create indexes with temporal, spatial and activity information for post-cruise data integration. The event log is configured aboard the ship for the recording of sampling events by both ship crew personnel on the bridge, and research personnel in the lab. The event log is processed post-cruise to correct for various errors.
A Comprehensive Radiocarbon Date Database from Archaeological Contexts on the Coastal Plain of Georgia
This database consists of radiocarbon dates from archaeological contexts on the coastal plain of Georgia (samples from strictly geological contexts were not included). A comprehensive search was performed to find the original sources of dates reported for all archaeological sites in this area. As such, dates reported from any time (i.e., 1960s to the present) were incorporated, which includes dates with problems. Data were compiled by John Turck and numerous undergraduate work study and volunteer students over a large period of time (from January 2012 to July 2012, and from January 2013 to April 2013). John Turck added to and refined the dataset between May 2013 and February 2014. In general, the database was structured so the information could be easily input into CALIB's online calibration program. It includes information such as: sample IDs, raw age and standard deviation, delta 13 correction factor, adjusted age and standard deviation, site number and name, material, association, and references. Calibrated dates were not entered into this databse. These data can be used to aid in archaeological studies, refining our understanding of the timing of human occupations throughout the coastal plain, and especially in the coastal zone. These data can also be used to aid geological, and geomorphological studies. The nature of the data is such that it will need to be continually added to as new samples are processesd, and further refined as more information about dates entered previosuly are obtained. Note: The original radiocarbon date database contains sensitive information (i.e., the specific location of archaeological sites) that is for professional archaeologists only. If a professional archaeologist needs site location information, they can contact the Georgia Archaeological Site File.
Limno run codes, dates, and locations associated with vertical lake profile data collected in the McMurdo Dry Valleys, Antarctica (1991-2025, ongoing)
This data package provides a summary of "limno runs" performed each season in lakes located throughout the McMurdo Dry Valleys of Antarctica as part of the McMurdo Dry Valleys Long Term Ecological Research program. Each limno run is identified by unique code that allows one to compile a complete set of limnological data from a particular lake and location at specific time points. There are usually two or three limno runs performed per lake per austral summer field season, although the number of runs may vary by lake and by season depending on site access, site conditions, and other external factors.
Mahāvīra statue dated saṃvat 1252 from Un, Khargone district, Madhya Pradesh
<p>Mahāvīra statue from Un, Khargone district, Madhya Pradesh, installed at the Pavagiri Digambar Jain temple (21°49'12.2"N 75°27'14.3"E). A two-line dedicatory inscription on the pedestal, dated saṃvat 1252 māgha śudi 5 ravau (=1196, January 7, Sunday), records perpetual obeisance of ācārya śrī Prabhācaṃdra, sādhu Vālha, his wives Ālha and Maṃḍōdari and sons sādhu Gōlha, Ratana, and Bhālā.</p>
Neolithic/Copper Age radiocarbon dates from West Carpathian basin and East Alps
<p>Radiocarbon dates used in this study were collected from original publications including grey literature. The resulting database was cross-referenced with available radiocarbon databases to ensure the quality of data. We used the latest revision (2019) of CalPal database by Bernhardt Weninger (<em>B. Weninger et al.</em> 2019), EuroEvol database (<em>Manning et al.</em>2016), C14.sk database (<em>Barta et al.</em> 2013) and RADON database (<em>Martin Hinz et al.</em> 2012). </p> <p> </p> <p>Database structure consist of ten columns, from site name (Site), unique site code (Scode), site longitude and latitude (Lon and Lat) in degrees, country (Country), laboratory code (Labcode), the conventional radiocarbon date (Date) in years before present, standard deviation (SD), dated material (Mat) and bibliographic reference (Cit). Where possible, we referenced the radiocarbon database where the date is recorded, otherwise, the publication where the date is reported or referenced is cited. </p> <p> </p> <p>Many thanks to Bernhardt Weninger for kindly providing the latest version of CalPal database.</p> <p> </p> <p><strong>References </strong></p> <p> </p> <p>B. Weninger, Jöris O., Danzeglocke U. 2019. CalPal-2007. Cologne Radiocarbon & Palaeoclimatic Research Package. <em>http:\\www.calpal.de</em></p> <p>Manning K., Colledge S., Crema E., Shennan S., Timpson A. 2016. The Cultural Evolution of Neolithic Europe. EUROEVOL Dataset 1: Sites, Phases and Radiocarbon Data. <em>Journal of Open Archaeological Data </em>5:e2. DOI: http://doi.org/10.5334/joad.40</p> <p>Martin Hinz M.F., Johannes Müller, Dirk Raetzel-Fabian, Rinne C., Sjögren K.-G., Wotzka H.-P. 2012. RADON - Radiocarbon dates online 2012. Central European database of 14C dates for the Neolithic and Early Bronze Age. <em>http:\\www.jungsteinsite.de</em></p> <p>Barta P., Demján P., Hladíková K., Kmeťová P., Piatničková K. 2013. Database of radiocarbon dates measured on archaeological samples from Slovakia, Czechia, and adjacent regions. <em>http://www.c14.sk</em></p>
Indor इंदौर (Guna District, Madhya Pradesh). Hero-stone dated VS 1177 with adjacent image of Hanumān.
<p>Indor इंदौर (Guna District, Madhya Pradesh). Hero-stone dated VS 1177 with adjacent image of Hanumān.</p>
Kanban tasks opening and close dates differences between git and Jira
<p>Dataset contains about three years of records from a software development company.</p> <p>Dataset contains the task start and end date registered in Jira software and the open and merged dates for those same tasks extracted from git records.</p> <p>This dataset compares those opening and close dates and shows the differences</p>
Phlorest phylogeny derived from Sagart et al. 2019 'Dated language phylogenies shed light on the ancestry of Sino-Tibetan'
<p>Cite the source of the dataset as:</p> <blockquote> <p>Sagart L, Jacques G, Lai Y, Ryder RJ, Thouzeau V, Greenhill SJ, List J- M. 2019 Dated language phylogenies shed light on the ancestry of Sino-Tibetan. Proceedings of the National Academy of Sciences, 201817972.</p> </blockquote>
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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.