{"@type": "dcat:Dataset", "accessLevel": "public", "accrualPeriodicity": "irregular", "bureauCode": ["005:18"], "contactPoint": {"fn": "Read, Quentin", "hasEmail": "mailto:quentin.read@usda.gov"}, "description": "<p dir=\"ltr\">This dataset contains all data and code required to reproduce the time-to-event analysis in the associated manuscript. More detail is found in the associated README.md file.</p><h3>Contents of repository</h3><ul><li><code>Yaeger_ReservoirDataset_Oct2022.csv</code>: comma-separated data file with reservoir characteristics, construction times, and water table depths and percent saturation at 5-year intervals from 1975-2015.</li><li><code>CGA_reservoir_analysis.Rmd</code>: RMarkdown notebook with all code required to reproduce the time-to-event analysis in the manuscript and generate the associated plots.</li><li><code>CGA_reservoir_analysis.html</code>: HTML file rendered from the .Rmd notebook.</li><li><code>README.md</code>: additional details, including column descriptions from the CSV file.</li></ul><h3>Software versions used</h3><p dir=\"ltr\">R version 4.1.2 (https://cran.r-project.org/bin/windows/base/old/4.1.2)</p><p dir=\"ltr\">R packages:</p><ul><li>data.table v1.14.8 (https://rdatatable.gitlab.io/data.table/)</li><li>ggplot2 v3.4.4 (https://ggplot2.tidyverse.org/)</li><li>sf v1.0-14 (https://r-spatial.github.io/sf/)</li><li>survival v3.5-5 (https://cran.r-project.org/package=survival)</li><li>icenReg v2.0.15 (https://cran.r-project.org/package=icenReg)</li></ul><p></p>", "distribution": [{"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/44095979", "format": "md", "mediaType": "text/plain", "title": "README.md"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/44095982", "format": "Rmd", "mediaType": "text/plain", "title": "CGA_reservoir_analysis.Rmd"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/44095985", "format": "html", "mediaType": "text/html", "title": "CGA_reservoir_analysis.html"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/44095988", "format": "csv", "mediaType": "text/plain", "title": "Yaeger_ReservoirDataset_Oct2022.csv"}], "identifier": "10.15482/USDA.ADC/24659127.v1", "keyword": ["Arkansas", "Cache River CGA", "Critical Groundwater Area (CGA)", "Grand Prairie CGA", "Mississippi River Valley", "Mississippi River Valley Alluvial Aquifer", "aquifer", "groundwater", "hydrology", "reservoir"], "license": "https://www.usa.gov/publicdomain/label/1.0/", "modified": "2025-11-21", "programCode": ["005:040"], "publisher": {"@type": "org:Organization", "name": "Agricultural Research Service"}, "spatial": "{\"type\": \"Polygon\", \"coordinates\": [[[-92.08584893, 34.05883035], [-90.71163961, 34.05883035], [-90.71163961, 35.94604415], [-92.08584893, 35.94604415], [-92.08584893, 34.05883035]]]}", "temporal": "1975-01-01/2015-12-31", "title": "Data and code from: Extending irrigation reservoir histories for improved groundwater modeling and conjunctive water management in two Arkansas critical groundwater areas"}