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Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
License information was derived automatically
These files are shared under a Creative Commons Attribution 4.0 International License.
The dataset includes tweets posted during the actual convention: the set starts with a tweet from Thursday 9 January 6:04:45 AM and ends with a tweet from Sunday 12 January 2014 23:32:46 Central Time. The total number of tweets in the dataset sums 21,915 tweets. The deposited .zip file contains 1 README.txt file and 5 CSV files including data from tweets harvested by Ernesto Priego (City University London) and Chris Zarate (MLA) using Martin Hawksey's TAGS 5.1. The data was deduplicated using OpenRefine. There is 1 CSV file per convention day and 1 CSV file with the combined tweets. An initial analysis of the data was posted as a series of blog posts by Ernesto Priego published between 16 January and 22 January 2014 at MLA Commons(http://remoteparticipation.commons.mla.org/2014/01/16/mla14-a-first-look/) (accessed 4 February 2014). To cite: Priego, Ernesto; Zarate, Chris (2014): #MLA14 Twitter Archive, 9-12 January 2014. figshare.http://dx.doi.org/10.6084/m9.figshare.924801
Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
License information was derived automatically
This dataset is a .xlsx file including data from Tweets publicly published with #mla15 as harvested by Ernesto Priego (City University London) and Chris Zarate (MLA). This dataset includes Tweets posted during the actual convention with #mla15: the set starts with a Tweet from Thursday 08/01/2015 00:02:53 Pacific Time and ends with a Tweet from Sunday 11/01/2015 23:59:58 Pacific Time. The total number of Tweets in this dataset sums 23,609 Tweets. Only Tweets from users with at least two followers were collected. A combination of Twitter Archiving Google Spreadsheets (Martin Hawksey's TAGS 6.0; available at https://tags.hawksey.info/ ) was used to harvest this collection. OpenRefine (http://openrefine.org/) was used for deduplicating the data. Please note that both research and experience show that the Twitter search API isn't 100% reliable. Large tweet volumes affect the search collection process. The API might "over-represent the more central users", not offering "an accurate picture of peripheral activity" (González-Bailón, Sandra, et al. 2012). It is therefore not guaranteed this file contains each and every Tweet tagged with the archived hashtag during the indicated period, and is shared for comparative and indicative educational and research purposes only. Please note the data in this file is likely to require further refining and even deduplication. The data is shared as is. This dataset is shared to encourage open research into scholarly activity on Twitter. If you use or refer to this data in any way please cite and link back using the citation information above.
For the #MLA14 datasets, please go toPriego, Ernesto; Zarate, Chris (2014): #MLA14 Twitter Archive, 9-12 January 2014. figshare.http://dx.doi.org/10.6084/m9.figshare.924801
NB. The previous version of this dataset accidentally contained a typo in the title that has been corrected. Please use the most recent version.
The datacitation extension for CKAN aims to facilitate proper data citation practices within the CKAN data catalog ecosystem. By providing tools and features to create and manage citations for datasets, the extension promotes discoverability and acknowledgment of data sources, enhancing the reproducibility and transparency of research and analysis based on these datasets. The available information is limited, but based on the name, the extension likely focuses on generating, displaying, and potentially exporting citation information. Key Features (Assumed based on Extension Name): * Dataset Citation Generation: Likely provides functionality to automatically generate citation strings for datasets based on metadata fields, adhering to common citation formats (e.g., APA, MLA, Chicago). * Citation Metadata Management: Potentially offers tools to manage citation-related metadata within datasets, such as author names, publication dates, and version numbers, which are essential elements for creating accurate citations. * Citation Display on Dataset Pages: It's reasonable to expect that the extension displays the generated citation information prominently on the dataset's display page, facilitating easy access for users. * Citation Export Options: May provide options to export citations in various formats (e.g., BibTeX, RIS) to integrate with reference management software popular among researchers. * Citation Style Customization: Possibly provides configuration options to customize the citation style used for generation, accommodating different disciplinary requirements. Use Cases (Inferred): 1. Research Data Repositories: Data repositories can utilize datacitation to ensure that researchers cite datasets correctly, which is crucial for tracking the impact of data and recognizing the contributions of data creators. 2. Government Data Portals: Government agencies can implement the extension to promote the proper use and attribution of open government datasets, fostering transparency and accountability. Technical Integration: Due to limited information, the integration details are speculative. However, it can be assumed that the datacitation extension likely integrates with CKAN by: * Adding a new plugin or module to CKAN that handles citation generation and display. * Extending the CKAN dataset schema to include citation-related metadata fields. * Potentially providing API endpoints for programmatic access to citation information. Benefits & Impact: The anticipated benefits of the datacitation extension include: * Improved data discoverability and reusability through proper citation practices. * Enhanced research reproducibility and transparency by ensuring that data sources are properly acknowledged. * Increased recognition of data creators and contributors. * Simplified citation management for users of CKAN-based data catalogs. Disclaimer: The above information is largely based on assumptions derived from the extension's name and common data citation practices. The actual features and capabilities of the datacitation extension may vary due to the unavailability of a README file.
Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
License information was derived automatically
Stem CO2 efflux, or stem respiration, measured vertically and diurnally within MLA-01 / Car-Bel, which is one of the SAFE Intensive Carbon Plots, part of the Global Ecosystem Monitoring (GEM) network, see http://gem.tropicalforests.ox.ac.uk/ located within Maliau Basin Conservation Area. Stem respiration was measured on 13 trees vertically and 18 trees diurnally during May 2023. The stem respiration data collected for this campaign can be linked to other data (census, species, traits) collected from the same stems by the stem tag number.
For vertical measurements, stem respiration was measured by tree climbers using the static chamber technique. A 10 cm PVC collar with a 10.6 cm internal diameter was attached to the tree using ratchet straps and hose clips, and modelling clay was used to create an airtight seal around the collar. Stem respiration is then measured with an EGM-4 infrared CO2 gas analyser and SRC-1 respiration chamber (PP Systems) to the collar. Prior to commencing each measurement, the chamber was flushed, and collar fanned to remove stagnant air and the collar was checked for leakage. The chamber is then placed onto the collar and CO2 efflux is measured for 120 seconds. Over the 120 seconds, CO2 accumulates in the chamber and the uncorrected CO2 flux (ppm s-1) is calculated by the IRGA by fitting a linear regression between CO2 concentration and time (mean R2 = 0.954). Flux is calculated from the linear change in concentration in the chamber headspace, and corrected for collar height and air temperature, using the constants:
0.106 = Collar diameter, m
0.008824734 = Collar area, m2
0.10 = Collar height, m
0.0012287 = Chamber volume, incl. top part of the adapter (as in GEM manual)
0.000441237 = Extra airspace of the collar, m3
0.00211124 = Total chamber headspace, m3
101,325 = pressure
8.314472 = R (gas constant)
273.15 = Temperature to Kelvins
12.01 = Molar mass of carbon
pV=nRT ideal gas law
n=pV/(RT)
n=m/M mass mole
m=n*M
m=MpV/(RT)
For diurnal champaign, measurements were conducted over 48-hours per group, except for group A, which was measured for 72-hours. On each sampled stem, a 7 cm PVC collar with a 10.6 cm internal diameter was installed at 1.1 m height with silicone sealant. EA was measured every hour using a LiCOR Li8100A infrared gas analyser and LiCOR Li8150 multiplexer with 15 m extension cables, powered by a 100-ah car battery. The equipment was configured to operate as a closed, self-flushing multiplexed system. To create a closed system, plastic caps with a 11 cm diameter, fitted with in and out push fittings, were secured to the plastic collars, and connected to the LiCOR system using 15 m extension cables. Each measurement duration was 3-minutes, with 90-second dead band and flushed with ambient air between observations. Over the 3-minute interval, CO2 accumulates inside the system and the CO2 flux is calculated as the linear change in CO2 concentration within SoilFluxPro. During the diurnal campaign, temperature and humidity were measured continuously using Tinytag data loggers (TGP-4500; Gemini).
This dataset was collected as part of the following projects:
<li><a href="https://safeproject.net/projects/project_view/230">https://safeproject.net/projects/project_view/230</a>
</li>
These data were collected as part of research funded by:
<li>Central England NERC Training Alliance (PhD Studentship , NE/S007350/1
)
</li>
This dataset is released under the CC-BY 4.0 licence, requiring that you cite the dataset in any outputs, but has the additional condition that you acknowledge the contribution of these funders in any outputs.
These data were collected under permit from the following authorities:
<li>Sabah Biodiversity Centre (SABC) ( Research licence JKM/MBS.1000-2/2 JLD.16 (4))</li>
This dataset consists of 1 file: MLA-01_StemResp_Vertical_Diurnal.xlsx
This file contains dataset metadata and 4 data tables:
<li>SAFEPlotName: SAFE plot name, as in the SAFE Gazetteer (type: location)</li>
<li>Subplot: Subplot tree is located in (type: id)</li>
<li>StemTagNumber: Stem tag number (ID), unique within plot (type: id)</li>
<li>Census_Date: Census Date (type: date)</li>
<li>Species: Tree species (as Genus species) (type: taxa)</li>
<li>Height_m_2016: Tree height, measured with laser hypsometer in 2016 (type: numeric)</li>
<li>H.POM_m: Heigth of the diameter measurement (default is 1.3 m), or if the tree has a buttress, 50 cm above the top of the buttress (type: numeric)</li>
<li>D.POM_cm_c2: Diameter at the measurement point (type: numeric)</li>
<li>Campaign: If the tree was used for the diurnal or vertical campaign, or both (type: comments)</li>
<li>SpeciesIDsource: Inforomation regarding who collected and who ID'd the specimens (type: comments)</li>
</ul>
<li>SAFEPlotName: SAFE plot name, as in the SAFE Gazetteer (type: location)</li>
<li>DateTime: Date and time of measurements (type: datetime)</li>
<li>TinyTag_Device: TinyTag device used for each recordering (either 2 or 9). Devices were moved to new groups along with the diurnal flux system set up. Tags were connected to trees at breast height with string (type: id)</li>
<li>Temperature: Temperature as measured by the Tinytag data loggers (TGP-4500; Gemini) (type: numeric)</li>
<li>Humidity: Relative humidity as measured by the Tinytag data loggers (TGP-4500; Gemini) (type: numeric)</li>
</ul>
<li>SAFEPlotName: SAFE plot name, as in the SAFE Gazetteer (type: location)</li>
<li>DateTime: Date and time of measurements (type: datetime)</li>
<li>Date: Date of measurement (type: date)</li>
<li>Time: Time of measurement (type: time)</li>
<li>Subplot: Subplot tree is located in (type: id)</li>
<li>Group: Measurement group (type: id)</li>
<li>StemTagNumber: Stem tag number (ID), unique within plot (type: id)</li>
<li>OBS_NUM: Observation number from the LI-8100A recorded in the raw file (type: id)</li>
<li>PORT: Port that the tree chamber was connected to, ports 1, 3, 7, 9, 11 were used (type: id)</li>
<li>FCO2_DRY.LIN: CO2 flux recorded from the LI-8100A from a linear fit (type: numeric)</li>
<li>FCO2_DRY.LIN_SE: Standard error of the flux (type: numeric)</li>
</ul>
<li>SAFEPlotName: SAFE plot name, as in the SAFE Gazetteer (type: location)</li>
<li>StemTagNumber: Stem tag number (ID), unique within plot (type: id)</li>
<li>Measurement_Height: Height measurements were conducted at, measured using a Nikon Forestry Pro and confirmed with visual inspection (type: numeric)</li>
<li>Date: Date of measurement (type: date)</li>
<li>Time: Time of measurement (type: time)</li>
<li>EGM_RecordNumber: EGM record number in raw flux file (type: id)</li>
<li>Slope: Slope of the linear regression between time (seconds) from the chamber closure and CO2 concentration (parts per million, ppm) in the chamber headspace. (type: numeric)</li>
<li>Diameter_at_MeasurementPoint: Diameter measured at the highest and lowest measurement on each tree (type: numeric)</li>
<li>AirTemp: Air temperature (type: numeric)</li>
<li>Measurement_position: Point on the tree measurements were taken, either Buttress, Stem, Above_Branch (type: comments)</li>
<li>Flux_mg_C_m2ofStemArea_hour: Flux corverted from ppm s-1 to mg (milligrams) carbon per hectare per hour. See conversion below. (type: numeric)</li>
<li>Q10_Flux_mg_C_m2ofStemArea_hour: Flux_mg_C_m2ofStemArea_hour corrected to 25°C assuming a Q10 of 2.0 : Cavaleri, M.A., Oberbauer, S.F. and Ryan, M.G., 2006. Wood CO2 efflux in a primary tropical rain forest. Global Change Biology, 12(12), pp.2442-2458. (type: numeric)</li>
</ul>
This dataset contains data associated with taxa and these have been validated against appropriate taxonomic authority databases.
The following taxa were validated against the GBIF backbone dataset (version 2023-08-28). If a dataset uses a synonym,
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This data release provides all data and code used in the paper " "Machine Learning Ensembles Can Enhance Hydrologic Predictions and Uncertainty Quantifications" Willard et al. (2025)" to model stream temperature, evaluate, and assess results. The associated manuscript explores the effect of different ensemble construction techniques across different common machine learning (ML) architectures for predictions in unmonitored basins. Modeling was done using long short-term memory (LSTM), gated recurrent unit (GRU), temporal convolution network (TCN), and extreme gradient boosting (XGBoost) models, and stream site coverage spans 1362 locations across the conterminous United States. The ensemble construction techniques investigated include ensemble by random weight initialization, differing hyperparameters, different random subsets of training data, different subselections of input features, different architectures, and Monte Carlo Dropout. The data is organized into these items items:Code repository and data for the paper " "Machine Learning Ensembles Can Enhance Hydrologic Predictions and Uncertainty Quantifications" Willard et al. (2025).Code: stream_temp_ml_regionalization.zip contains the code repositoryData to run the code:- data_dir.zip -- contains all files that should be moved to the "DATA_DIR" variable defined in the "set_env_vars.sh" script in the code repository- metadata_dir.zip -- contains all files that should be moved to the "METADATA_DIR" variable defined in the "set_env_vars.sh" scriptmore » in the code repositoryData produced by the code and used in the paper:- outputs_dir.zip - contains model output and results (outputs_dir/results), model weights (outputs_dir/models), and all other outputs used for the paper including feature importances.To cite this code, please use the following BibTeX or MLA entries:bibtex:@misc{willard2025streamensembles,author = {Jared Willard and Charuleka Varadharajan},title = {Dataset for "Machine Learning Ensembles Can Enhance Hydrologic Predictions and Uncertainty Quantification"},year = {2024},doi = {10.15485/2527393},publisher = {ESS-DIVE Repository},url = {https://data.ess-dive.lbl.gov/datasets/doi:10.15485/2527393}}MLA: Willard, Jared, et al. Dataset for "Machine Learning Ensembles Can Enhance Hydrologic Predictions and Uncertainty Quantification". 2025. ESS-DIVE Repository, doi:10.15485/2448016.« less
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