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  "name": "Irrigation Management and Soils as Controls on Deep Percolation and Nitrate Leaching in Agricultural Systems: Thesis Data and Code",
  "description": "This resource provides data and code supporting the thesis \u201cIrrigation Management and Soils as Controls on Deep Percolation and Nitrate Leaching in Agricultural Systems\u201d. All data were collected from irrigated fields of cooperating producers between 2023 and 2025, and all code uses R statistical software. The \u2018Chp 2: Methods Assessment\u2019 section contains data and analysis focused on understanding soil water sensor and suction lysimeter behavior. Performance of two soil water sensors (HOBO Decagon 10HS, METER T12) were compared. Lysimeter sampling success, sample size, and volume of influence were assessed, and comparisons between soil water nitrate collected by lysimeters and converted from bulk soil nitrate were compared. \u2018Chp 3: Percolation Metric\u2019 contains code for calculating a volumetric water content response metric normalized to net water inputs for single irrigation events. Compiled metric scores across soil types are provided as well. \u2018Chp 4: Fairfield Data and Time Variable Dual Permeability Modeling\u2019 contains field data from soil water sensors, suction lysimeters, and soil samples collected in Fairfield during 2023 and 2024. It also contains R code that interfaces with Hydrus 1D to solve inverse model solutions for dual permeability model parameters, then running many executions of time-variable forward models to estimate deep percolation and nitrate leaching. \u2018Chp 5: Gallatin Data and Single Porosity Models\u2019 contains all field data from soil water sensors, suction lysimeters, and soil samples collected in the Gallatin during 2023 and 2024. It also contains code for running Hydrus 1D single porosity models calibrated to field site data.",
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      "name": "Robinson, Meghan"
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      "name": "Sigler, W. Adam"
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  "dateCreated": "2025-07-23 19:37:23.312747+00:00",
  "keywords": [
    "nitrate leaching",
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  "dateModified": "2026-08-17 02:42:06.849257+00:00",
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  "citation": [
    "Robinson, M., Sigler, W. A. (2026). Irrigation Management and Soils as Controls on Deep Percolation and Nitrate Leaching in Agricultural Systems: Thesis Data and Code, HydroShare, http://www.hydroshare.org/resource/2d6042efdc7944288ce486ae9a58da9e"
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