cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.4231/y31n-5r10
title: Genetic and environmental variation in alfalfa forage yield from variety testing experiments conducted in North America between 1986 to 1999

description: &lt;p&gt;The yield dataset contains forage yield data from over 700 alfalfa variety tests conducted by researchers in the US and Canada from 1986 through 1999. Some trials also measured forage quality and stand; these data are also available in PURR. The data were aggregated from the Alfalfa Variety Performance Database originally compiled in 2000 by Daniel W. Wiersma and Wayne G. Hartman (doi: &lt;a href="https://doi.org/10.4231/PHKH-4334" target="_blank"&gt;10.4231/PHKH-4334)&lt;/a&gt;. The database was used to analyze long-term trends in genetic improvement of alfalfa yield and agronomic performance across a broad range of environments.&lt;/p&gt;

&lt;p&gt;The yield file contains cultivar-specific yield data for each harvest within a year. It is organized by Trial, and includes trial-specific spatial (state, latitude, longitude, elevation), and temporal (year of trial, harvest number, harvest date, planting date) details. Finally, when available soil type and statistics are also provided. A companion dataset in PURR contains the characteristics of these alfalfa varieties (doi: &lt;a href="https://doi.org/10.4231/FMY9-6966" target="_blank"&gt;10.4231/FMY9-6966)&lt;/a&gt;. &lt;/p&gt;
description: The dataset contains data used to analyze genetic and environmental effects on alfalfa yield and agronomic performance. Data were compiled from alfalfa variety tests conducted by University researchers in the US and Canada from 1986 through 1999.
DOI: 10.4231/xk25-7981
title: Global CO Dynamics Model Output during 1901-2100

description: &lt;p&gt;Carbon monoxide (CO) plays an important role in controlling the oxidizing capacity of the atmosphere by reacting with OH radicals that affect atmospheric methane (CH4) dynamics. We developed a process-based biogeochemistry model to quantify the CO exchange between soils and the atmosphere. The model is then extrapolated to global terrestrial ecosystems to estimate global soil gross consumption, gross production, and net flux of the atmospheric CO during the period 1901-2100.&lt;/p&gt;

&lt;p&gt;Super- computing resources for this project were provided by the Rosen Center for Advanced Computing at Purdue University for all of the model simulations. Matlab and IDL were used to post-process the output global CO flux data. Final data are presented in text format so any kind of user can read them easily.&lt;/p&gt;

&lt;p&gt;The deposit_data_co.zip contains all model output data presented in Liu. et al., 2018 ACP paper, &quot;Global soil consumption of atmospheric carbon monoxide: an analysis using a process-based biogeochemistry model&quot;&lt;/p&gt;

&lt;p&gt;1. Code_co contains all co dynamics model code used in paper;&lt;br /&gt;
2: Figures contains all figures showed in paper;&lt;br /&gt;
3: Simulation_global contains all processed data of model outputs. Original gridded data are too big for uploading, but can be requested directly from Authors;&lt;br /&gt;
4: org_simulation_global contains the monthly gridded data for period 2000-2013. Other period data are too big to upload but can be requested directly from Authors;&lt;br /&gt;
4: acp-18-7913-2018.pdf is the published paper;&lt;br /&gt;
5: Table_acp.xlsx contains all tables in paper.&lt;/p&gt;

&lt;p&gt;Version 1.1: Fixed the units description in readme file and added description of mosaic data.&lt;/p&gt;

&lt;p&gt; &lt;/p&gt;
description: Global soil CO fluxes during 1901-2013, 2000-2013 and 2014-2100 from model simulations. Together with published paper, figures and tables.
DOI: 10.4231/p6c1-5419
title: Density of ZFBS-Morph overlaps in the build canFam2 of the dog genome

description: &lt;p&gt;In mammals, genomic imprinting results in the expression of a subset of genes in a parent-of-origin-specific manner.  However, despite many efforts not much is known about the number of imprinted genes in dogs and how they are controlled.  Thus, critical to understanding canine genetics is to be able to discover the positions of imprinted genes and the imprinting control regions (ICRs) in dogs.  Studies of the mouse and human genomes have revealed that the ICRs often encompass a set of composite DNA elements consisting of the ZFP57 binding site (ZFBS) overlapping a subset of the MLL1 morphemes.  These elements (ZFBS-Morph overlaps) usually occur as clusters of 2 or more in ICRs and germline Differentially Methylated Regions (gDMRs).  To enhance detection of such clusters, we created plots for displaying the density of ZFBS-Morph overlaps along the build canFam2 of the dog genome.&lt;/p&gt;

&lt;p&gt;This publication provides a file (in wig.gz format) for examining the density of ZFBS-Morph overlaps at the UCSC genome browser.  Follow the steps below to obtain a copy of the file for creating a custom track at the browser.&lt;/p&gt;

&lt;ul&gt;
 &lt;li&gt;At the top right corner of this page, click on download bundle. The file is compressed.&lt;/li&gt;
 &lt;li&gt;After download, decompress the file.
 &lt;ul&gt;
 &lt;li&gt;You will find two files named:
 &lt;ul&gt;
 &lt;li&gt;Readme.txt and&lt;/li&gt;
 &lt;li&gt;BINA_Dens_ZFBS-Morph_overlaps_dog_canFam2.wig.gz&lt;/li&gt;
 &lt;/ul&gt;
 &lt;/li&gt;
 &lt;/ul&gt;
 &lt;/li&gt;
 &lt;li&gt;To view the plots at the UCSC genome browser, go to &lt;a href="https://genome.ucsc.edu/"&gt;https://genome.ucsc.edu/&lt;/a&gt;&lt;/li&gt;
 &lt;li&gt;Select the build canFam2 of the dog genome. 
 &lt;ul style="list-style-type:circle;"&gt;
 &lt;li&gt;You will find a map displaying the default tracks.&lt;/li&gt;
 &lt;/ul&gt;
 &lt;/li&gt;
 &lt;li&gt;Under the map, click on &quot;manage custom tracks&rdquo;
 &lt;ul style="list-style-type:circle;"&gt;
 &lt;li&gt;Afterward, click on &quot;add custom track&quot;&lt;/li&gt;
 &lt;li&gt;Then click on &ldquo;choose file&rdquo;&lt;/li&gt;
 &lt;/ul&gt;
 &lt;/li&gt;
 &lt;li&gt;On your computer, select the file named &ldquo;BINA_Dens_ZFBS-Morph_overlaps_dog_canFam2.wig.gz&rdquo;&lt;/li&gt;
 &lt;li&gt;Subsequently, click on submit.&lt;/li&gt;
&lt;/ul&gt;

&lt;p&gt;At the browser, the plot will display the density-peaks as brown vertical bars.&lt;/p&gt;

&lt;p&gt;NOTE: the track will indicate &ldquo;no data&rdquo; in regions that do not include any density-peak.&lt;/p&gt;

&lt;p&gt;In evaluations of the dog genome, we found that reliable peaks encompassed 3 or more ZFBS-Morph overlaps.  Peaks encompassing 2 overlaps could be true or false positives.&lt;/p&gt;

&lt;p&gt;If you observe anomalies on this page, please contact bina@ purdue.edu.&lt;/p&gt;
description: This publication provides a file (in wig.gz format) for examining the density of ZFBS-Morph overlaps at the UCSC genome browser.
DOI: 10.4231/jq7r-ys20
title: To Seal or Not To Seal: Study of Splashes

description: &lt;p&gt;&lt;iframe allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/qeCHyoLNd5c" width="560"&gt;&lt;/iframe&gt;&lt;/p&gt;

&lt;p&gt;The data provided in this publication was used to deliver the first detailed mechanical analysis of splash curtain, providing a physical understanding on why the splash curtain sometimes seals, and other times it does not.&lt;b&gt; &lt;/b&gt;&lt;/p&gt;

&lt;p&gt;When an object impacts the free surface of a liquid, it ejects a splash curtain upwards and creates an air cavity below the free surface. As the object descends into the liquid, the air cavity eventually closes under the action of hydrostatic pressure (deep seal). In contrast, the surface curtain may splash outwards or dome over and close, creating a surface seal. We experimentally investigate how the splash curtain dynamics are governed by the interplay of cavity pressure difference, gravity, and surface tension and how they control the occurrence, or not, of surface seal. Based on the experimental observations and measurements, we develop an analytical model to describe the trajectory and dynamics of the splash curtain. The model enables us to reveal the scaling relationship for the dimensionless surface seal time and discover the existence of a critical dimensionless number that predicts the occurrence of surface seal. This scaling indicates that the most significant parameter governing the occurrence of surface seal is the velocity of the airflow rushing into the cavity. This is in contrast to the current understanding which considers the impact velocity as the determinant parameter.&lt;/p&gt;

&lt;p&gt; &lt;/p&gt;
description: Data from the water entry of hydrophobic spheres experiment used to reveal the criteria in the occurrence of surface seal.
DOI: 10.4231/dv5g-5186
title: Uncertainty amplification due to density/refractive index gradients in background oriented schlieren experiments

description: &lt;p&gt;Background-Oriented Schlieren (BOS) is a technique used to measure fluid density from the apparent distortion of a target dot pattern. In this work we model how non-linearities in the density gradient fields that can be present in flows with shocks, boundary layers etc., can blur the dot pattern image and increase the position uncertainty. A concept called the Cramer-Rao lower bound (CRLB) from the field of parameter estimation is used to develop this model. A parameter termed the Amplification Ratio (&lt;img height="14" src="blob:https://purr.purdue.edu/7dfb1ddd-9076-49e3-ac3b-744b8b4e13fa" width="14" /&gt;) is proposed that describes the ratio of position uncertainties of a dot in the reference (no-flow) and gradient (with flow) images and is shown to be a function of the ratio of the dot diameters and dot intensities. The uncertainty amplification is demonstrated on synthetic and experimental BOS images, where it is seen that regions of high amplification ratio correspond to regions of density gradients. This analysis elucidates the dependence of the position uncertainty on density and refractive-index gradient induced distortion parameters, provides a methodology for accounting its effect on uncertainty quantification and provides a framework for optimizing experiment design.&lt;/p&gt;
description: Propose a model to describe the effect of density/refractive index gradients on reducing the measurement precision of background-oriented schlieren (BOS) experiments by deriving the Cramer–Rao lower bound (CRLB) for the 2D centroid estimation...
DOI: 10.4231/8pgw-mh24
title: Who thinks removing Confederate icons violates free speech?

description: &lt;p&gt;The belief that removing Confederate icons from public spaces violates free expression rights occasionally makes its way into the national discourse. Because rights-based claims represent ostensibly race-neutral justification for supporting Confederate symbols, we field an original, nationally representative survey to ascertain how pervasive this belief is among the general public, as well as what motivates it. We find that while this is a decidedly minority position, this view is strongly correlated with racial attitudes. &lt;/p&gt;
description: The belief that removing Confederate icons from public spaces violates free expression rights occasionally makes its way into the national discourse. We collected data to ascertain who makes this argument and why.
DOI: 10.4231/npyj-ge58
title: Data for Validation and Sensitivity Analysis of a 1-D Lake Model across Global Lakes

description: &lt;p&gt;This dataset includes the model calibration and validation results of 58 lakes using ALBM, and the corresponding sensitivity test results. Calib/ contains the metrics of water temperature simulations in the calibration and validation. CART/ contains the summaries of parameter sensitivity tests from Classification and Regression Tree (CART) model training. codes/ contains R codes for data analysis.&lt;/p&gt;

&lt;p&gt;Lakes have important influence on weather and climate from local to global scales. However, their prediction using numerical models is notoriously difficult because global lakes are highly heterogeneous across the globe and observations are sparse. Here, we assessed the performance of a 1-D lake model in simulating the thermal structures of 58 lakes with diverse morphometric and geographic characteristics by following the phase 2a local lake protocol of the Inter-sectoral Impact Model Intercomparison Project (ISIMIP2a). The model was calibrated using six years of observation data for each lake and validated using the remaining data. After model calibration, the root-mean-square errors (RMSE) were below 2 &deg;C for 70% and 75% of the lakes for epilimnion temperature and full-profile temperature simulations, with an average of 1.71 &deg;C and 1.43 &lt;a name="OLE_LINK1"&gt;&lt;/a&gt;&lt;a name="OLE_LINK2"&gt;&deg;C&lt;/a&gt;, respectively. The model performance mainly depends on lake shape rather than location, supporting the possibility of grouping model parameters by lake shape for global applications. Furthermore, through machine-learning based parameter sensitivity tests, we identified turbulent heat fluxes, wind-driven mixing and water transparency as the major processes controlling lake thermal and mixing regimes. Snow density is also a sensitive parameter for modeling the ice phenology of high latitude lakes. The relative influence of the key processes and the corresponding parameters mainly depended on lake latitude and depth. Turbulent heat fluxes showed a decreasing importance in affecting lake epilimnion temperature with increasing latitude. Wind-driven mixing was less influential to lake vertical temperature profile for deeper lakes while the impact of light extinction, on the contrary, showed a positive correlation with depth on lake stratification. Our findings may guide improvements in 1-D lake model parameterizations to achieve higher fidelity in simulating global lake thermal dynamics. &lt;/p&gt;
description: This dataset includes the calibration and sensitivity test results of 58 lakes globally using the Arctic Lake Biogeochemistry Model (ALBM) and codes for analysis.
DOI: 10.4231/8gev-2p56
title: Modeling Holocene Peatland Soil Carbon Accumulation in North America

description: &lt;p&gt;This dataset contains the files required to reproduce all the figures presented in the paper &lt;em&gt;Modeling Holocene Peatland Soil Carbon Accumulation in North America.&lt;/em&gt; All figures are produced by Matlab. The scripts are *.m files while the input data could be *.txt or *.mat files. &lt;/p&gt;

&lt;p&gt;Peatlands are important sources and sinks for carbon-based greenhouse gases. The quantification of their carbon accumulation still has a large uncertainty due to large data gaps and lack of process-based modeling tools. Here, a process-based biogeochemistry model developed for peatland ecosystems was calibrated based on peatland site-level data of long-term peat C accumulation rates. The model was then applied to quantify the C accumulation rates and stocks within North America peatlands over the last 12,000 years. We estimated that 85-174 Pg C were accumulated in North American peatlands over the study period including 0.37-0.76 Pg C in subtropical peatlands. Our model suggested that during the period from 10,000 to 8,000 years ago, the warmer and wetter conditions might have played an important role in stimulating peat C accumulation by enhancing plant photosynthesis. Enhanced peat decomposition due to warming slowed the C accumulation through the rest of the Holocene.&lt;/p&gt;
description: This dataset include the necessary data and codes to reproduce the figures used in the paper.
DOI: 10.4231/tsk3-1733
title: North American boreal forests are a large carbon source due to wildfires from 1986 to 2016

description: &lt;p&gt;The dataset contains all files to reproduce the figures in the paper &lt;em&gt;North American boreal forests are a large carbon source due to wildfires from 1986 to 2016.&lt;/em&gt;&lt;b&gt; &lt;/b&gt;These figures&lt;b&gt; &lt;/b&gt;are created by Matlab, Python and ArcGIS. For Python, a environment of Python 2.7 or Python 3.7 with packages (pandas, numpy, scipy, matplotlib) pre-installed is required. The files with the extension of *.sglburnemit are essentially text files.&lt;/p&gt;

&lt;p&gt;Wildfires are a major disturbance to influence forest carbon balance through both immediate combustion emissions and post-fire ecosystem carbon dynamics.  Here we use a process-based biogeochemistry model, the Terrestrial Ecosystem Model, to simulate carbon budget in Alaska and Canada during 1986-2016 considering fire disturbances. The difference Normalized Burn Ratio (dNBR) data for fires are extracted from Landsat TM/ETM imagery, and used to estimate the proportion of vegetation and soil carbon combustion. We find that the region is a carbon source of 2.74 Pg C during the 31-year period. The loss is attributed to fire emissions at 57.1 Tg C/yr, overwhelming the net ecosystem production at 1.9 Tg C/yr in the region. Our during-fire emission for Alaska and Canada are lower than some field measurements and model estimations (for Alaska: 1.4 Tg C/yr versus 1.6-3.3 Tg C/yr; for Canada: 2.1 Tg C/yr versus 1.3-4.3 Tg C/yr). Fire severity complicates after-fire carbon dynamics, with low severity fires increase soil temperature and decrease soil moisture, stimulating soil respiration. However, the opposite trend is found under moderate or high fire severity. Net nitrogen mineralization rates gradually recovered after fire, enhancing net primary production. Net ecosystem production recovers quicker under higher burn severities. Overall, our carbon budget analysis might be biased mainly due to the burn severity uncertainty.&lt;/p&gt;

&lt;p&gt; &lt;/p&gt;
description: The bundle contains the codes and data used to generate the figures in the paper.
DOI: 10.4231/n24b-mv16
title: Archived standard tests to characterize stress tolerance and agronomic performance of alfalfa cultivars

description: &lt;p&gt;The dataset contains archived copies of the peer-reviewed standard test protocols used to characterize insect, disease, and agronomic responses of alfalfa cultivars, 3rd edition (amended 2004) published by the North American Alfalfa Improvement Conference and made available at conference&#39;s site &lt;a href="https://www.naaic.org/resource/stdtests.php"&gt;https://www.naaic.org/resource/stdtests.php&lt;/a&gt;.  The dataset was supplemented with additional metadata found on the NAAIC webpage. These protocols were used to characterized alfalfa varieties and experimental lines included in the Alfalfa Variety Database (DOI: &lt;a href="https://doi.org/10.4231/PHKH-4334" rel="external" target="_blank"&gt;10.4231/PHKH-4334)&lt;/a&gt;, and are provided here as detailed supplemental information supporting the metadata document for Alfalfa Varieties and Experimental Lines 1986 to 1999 (&lt;a href="https://doi.org/10.4231/FMY9-6966" rel="external" target="_blank"&gt;doi:10.4231/FMY9-6966&lt;/a&gt;). &lt;/p&gt;

&lt;p&gt;All standardized tests followed the format of the Third Edition of the Standardized Test to Characterize Alfalfa Culitvars, edited by Cheryl Fox, et al. and were published by the NAAIC. The standardized test included check cultivars, a list of scientists with expertise, references and in the case of diseases, insects, and nematodes, a distribution and severity U.S. map.&lt;/p&gt;
description: The dataset contains standard test protocols used to characterize alfalfa cultivars compiled by the The North American Alfalfa Improvement Conference.
DOI: 10.15468/dl.h898nn
title: Occurrence Download

description: A dataset containing 8 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Meretrix meretrix, Cytherea castanea, Cytherea corpulenta, Cytherea ponderosa, Meretrix labiosa, Meretrix meretrix alba, Meretrix meretrix chenui, Meretrix meretrix fulva, Meretrix meretrix hidalgoi, Venus meretrix)",
 "HasCoordinate is true",
 "BasisOfRecord is one of (Observation, Machine Observation, Human Observation, Occurrence evidence)",
 "OccurrenceStatus is Present",
 "Year is greater than or equal to 1950"
 ]
}

 The dataset includes 8 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0059463-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.6adv6m
title: Occurrence Download

description: A dataset containing 5797 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is one of (Observation, Human Observation, Material sample, Material citation, Specimen, Living Specimen, Occurrence evidence)",
 "Continent is Europe",
 "OccurrenceStatus is Present",
 "TaxonKey is Myotis dasycneme",
 "Year 2000-2024"
 ]
}

 The dataset includes 5797 records from 64 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0059464-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.4231/5xra-jz80
title: Improved Simulation of Monsoon Depressions and Heavy Rains from Direct and Indirect Initialization of Soil Moisture over India

description: &lt;p&gt;This study investigates the impact of direct versus indirect initialization of soil moisture and soil temperature (SM/ST) on monsoon depressions (MDs) and heavy rainfall simulations over India. SM/ST products obtained from high-resolution, land data assimilation system (LDAS) are used in the direct initialization of land surface conditions in the ARW modeling system. In the indirect method, the initial SM is sequentially adjusted through the flux-adjusting surface data assimilation system (FASDAS). These two approaches are compared with a control experiment (CNTL) involving climatological SM/ST conditions for eight MDs at 4-km horizontal resolution.&lt;/p&gt;

&lt;p&gt;The surface fields simulated by the LDAS run showed the highest agreement, followed by FASDAS for relatively dry June cases, but the error is high (~15-30%) for the relatively wet August cases. The moisture budget indicates that moisture convergence and local influence contributed more to rainfall. The surface-rainfall feedback analysis reveals that surface conditions and evaporation have a dominant impact on the rainfall simulation, and these couplings are notable in LDAS runs. The contiguous rain area (CRA) method indicates better performance of LDAS for very heavy rainfall distribution, and the location (ETS&gt;0.2), compared to FASDAS and CNTL. The pattern error contributes the maximum to the total rainfall error, and the displacement error is more in August cases&rsquo; rainfall than that in June cases. Overall analyses indicated that the role of land conditions is significantly high in the drier month (June) than a wet month (August), and direct initialization of SM/ST fields yielded improved MD and heavy rain simulations.&lt;/p&gt;
description: Each file contains various meteorological fields such as air temperature, rainfall, moisture, rainfall, and surface fields (soil moisture and soil temperature).