{
  "_id": "6ad9f063343c88418cb719d1",
  "Package": "ET0RadModels",
  "Type": "Package",
  "Title": "Evapotranspiration Estimation Using Radiation-Based Models",
  "Version": "1.0.0",
  "Authors@R": "c(\nperson(\"Ajay N.\", \"Satpute\", role = \"aut\"),\nperson(\"Samir\", \"Barman\", email = \"samir.igfri@gmail.com\",\nrole = c(\"aut\", \"cre\"),\ncomment = c(ORCID = \"0000-0001-8181-8346\")),\nperson(\"Amit Kumar\", \"Singh\", role = \"aut\"),\nperson(\"Avijit\", \"Ghosh\", role = \"aut\"),\nperson(\"Gaurendra\", \"Gupta\", role = \"aut\"))",
  "Description": "Provides functions to estimate daily reference\nevapotranspiration (ET0) using 10 radiation-based empirical\nmodels, with the Food and Agriculture Organization (FAO)\nPenman-Monteith method included as the standard reference for\nmodel comparison. Includes statistical evaluation metrics, such\nas Nash-Sutcliffe efficiency (NSE), root mean square error\n(RMSE), mean absolute error (MAE), and mean bias error (MBE),\nand visualization tools (scatter plots and Taylor diagrams).\nBased on Singh et al. (2026) <doi:10.1016/j.ejrh.2026.103925>.",
  "License": "GPL (>= 3)",
  "URL": "https://github.com/samirigfri/ET0RadModels",
  "BugReports": "https://github.com/samirigfri/ET0RadModels/issues",
  "Encoding": "UTF-8",
  "LazyData": "true",
  "RoxygenNote": "7.3.3",
  "Config/testthat/edition": "3",
  "VignetteBuilder": "knitr",
  "Repository": "https://samirigfri.r-universe.dev",
  "Date/Publication": "2026-10-11 10:13:17 UTC",
  "RemoteUrl": "https://github.com/samirigfri/et0radmodels",
  "RemoteRef": "HEAD",
  "RemoteSha": "95bedca95b2b58d7a0506b188e04bd0f9ad2a087",
  "NeedsCompilation": "no",
  "Packaged": {
    "Date": "2026-10-22 10:52:52 UTC",
    "User": "root"
  },
  "Author": "Ajay N. Satpute [aut],\nSamir Barman [aut, cre] (ORCID:\n<https://orcid.org/0000-0001-8181-8346>),\nAmit Kumar Singh [aut],\nAvijit Ghosh [aut],\nGaurendra Gupta [aut]",
  "Maintainer": "Samir Barman <samir.igfri@gmail.com>",
  "_user": "samirigfri",
  "_type": "src",
  "_file": "ET0RadModels_1.0.0.tar.gz",
  "_fileid": "https://r2.ropensci.org/2b6556e4882d9d3d6a143b4e811476c64809f70241433b4e4c98f80e5a6d6cca",
  "_filesize": 533039,
  "_sha256": "2b6556e4882d9d3d6a143b4e811476c64809f70241433b4e4c98f80e5a6d6cca",
  "_expires": "2027-01-30T11:15:46.000Z",
  "_created": "2026-10-22T10:52:52.000Z",
  "_published": "2026-10-22T11:15:47.848Z",
  "_upstream": "https://github.com/samirigfri/et0radmodels",
  "_status": "success",
  "_maintainer": {
    "name": "Samir Barman",
    "email": "samir.igfri@gmail.com",
    "login": "samirigfri",
    "description": "",
    "uuid": 326461953,
    "orcid": "0000-0001-8181-8346"
  },
  "_jobs": [
    {
      "job": 119782947762,
      "time": 106,
      "config": "linux-devel-x86_64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "12420816088"
    },
    {
      "job": 119782947900,
      "time": 98,
      "config": "linux-release-x86_64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "12419879641"
    },
    {
      "job": 119782947834,
      "time": 128,
      "config": "macos-oldrel-arm64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "12421885984"
    },
    {
      "job": 119782947791,
      "time": 185,
      "config": "macos-release-arm64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "12421317539"
    },
    {
      "job": 119781763749,
      "time": 169,
      "config": "source",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "12419779488"
    },
    {
      "job": 119782947879,
      "time": 86,
      "config": "wasm-release",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "12419704600"
    },
    {
      "job": 119782947711,
      "time": 72,
      "config": "windows-devel-x86_64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "12420412217"
    },
    {
      "job": 119782947783,
      "time": 59,
      "config": "windows-oldrel-x86_64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "12420856212"
    },
    {
      "job": 119782948015,
      "time": 65,
      "config": "windows-release-x86_64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "12420402293"
    }
  ],
  "_buildurl": "https://github.com/r-universe/samirigfri/actions/runs/39766039128",
  "_commit": {
    "id": "95bedca95b2b58d7a0506b188e04bd0f9ad2a087",
    "author": "Samir Barman <samir.igfri@gmail.com>",
    "committer": "Samir Barman <samir.igfri@gmail.com>",
    "message": "CRAN fixes: license, acronyms, rename T argument\n",
    "time": 1791713597
  },
  "_distro": "resolute",
  "_host": "GitHub-Actions",
  "_registered": true,
  "_dependencies": [
    {
      "package": "R",
      "version": ">= 3.5.0",
      "role": "Depends"
    },
    {
      "package": "graphics",
      "role": "Imports"
    },
    {
      "package": "grDevices",
      "role": "Imports"
    },
    {
      "package": "stats",
      "role": "Imports"
    },
    {
      "package": "testthat",
      "version": ">= 3.0.0",
      "role": "Suggests"
    },
    {
      "package": "knitr",
      "role": "Suggests"
    },
    {
      "package": "rmarkdown",
      "role": "Suggests"
    }
  ],
  "_owner": "samirigfri",
  "_selfowned": true,
  "_usedby": 0,
  "_updates": [
    {
      "week": "2026-37",
      "n": 1
    },
    {
      "week": "2026-41",
      "n": 1
    }
  ],
  "_tags": [],
  "_stars": 0,
  "_contributors": [
    {
      "user": "samirigfri",
      "count": 2,
      "uuid": 326461953
    }
  ],
  "_userbio": {
    "uuid": 326461953,
    "type": "user",
    "name": "samirigfri",
    "followers": 0
  },
  "_downloads": {
    "count": 0,
    "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/ET0RadModels"
  },
  "_devurl": "https://github.com/samirigfri/et0radmodels",
  "_searchresults": 0,
  "_rbuild": "4.6.1",
  "_assets": [
    "extra/citation.cff",
    "extra/citation.html",
    "extra/citation.json",
    "extra/citation.txt",
    "extra/contents.json",
    "extra/ET0RadModels.html",
    "extra/manual.pdf",
    "extra/NEWS.html",
    "extra/NEWS.txt",
    "extra/readme.html",
    "extra/readme.md"
  ],
  "_homeurl": "https://github.com/samirigfri/et0radmodels",
  "_realowner": "samirigfri",
  "_cranurl": true,
  "_releases": [
    {
      "version": "1.0.0",
      "date": "2026-10-21"
    }
  ],
  "_exports": [
    "actual_vapor_pressure",
    "calc_d",
    "calc_mae",
    "calc_mbe",
    "calc_mse",
    "calc_nrmse",
    "calc_nse",
    "calc_r",
    "calc_r2",
    "calc_rmse",
    "daylight_hours",
    "dew_point_temperature",
    "et0_abtew",
    "et0_caprio",
    "et0_fao_pm",
    "et0_hargreaves",
    "et0_irmak",
    "et0_jensen_haise",
    "et0_jones_ritchie",
    "et0_makkink",
    "et0_mcguinness_bordne",
    "et0_priestley_taylor",
    "et0_rad_all",
    "et0_turc",
    "evaluate_models",
    "extraterrestrial_radiation",
    "latent_heat",
    "net_radiation",
    "plot_annual_bar",
    "plot_monthly_comparison",
    "plot_scatter",
    "plot_taylor",
    "psychrometric_constant",
    "saturation_vapor_pressure",
    "slope_vapor_pressure",
    "solar_radiation"
  ],
  "_datasets": [
    {
      "name": "jhansi_weather",
      "title": "Sample Meteorological Data from Jhansi, India",
      "object": "jhansi_weather",
      "class": [
        "data.frame"
      ],
      "fields": [
        "Date",
        "J",
        "Tmax",
        "Tmin",
        "RH_morning",
        "RH_evening",
        "SSH",
        "WS"
      ],
      "rows": 365,
      "table": true,
      "tojson": true
    }
  ],
  "_help": [
    {
      "page": "ET0RadModels-package",
      "title": "ET0RadModels: Reference Evapotranspiration Estimation Using Radiation-Based Models",
      "topics": [
        "ET0RadModels-package",
        "ET0RadModels"
      ]
    },
    {
      "page": "actual_vapor_pressure",
      "title": "Actual Vapor Pressure",
      "topics": [
        "actual_vapor_pressure"
      ]
    },
    {
      "page": "calc_d",
      "title": "Willmott's Index of Agreement (d)",
      "topics": [
        "calc_d"
      ]
    },
    {
      "page": "calc_mae",
      "title": "Mean Absolute Error (MAE)",
      "topics": [
        "calc_mae"
      ]
    },
    {
      "page": "calc_mbe",
      "title": "Mean Bias Error (MBE)",
      "topics": [
        "calc_mbe"
      ]
    },
    {
      "page": "calc_mse",
      "title": "Mean Squared Error (MSE)",
      "topics": [
        "calc_mse"
      ]
    },
    {
      "page": "calc_nrmse",
      "title": "Normalized Root Mean Squared Error (NRMSE)",
      "topics": [
        "calc_nrmse"
      ]
    },
    {
      "page": "calc_nse",
      "title": "Nash-Sutcliffe Efficiency (NSE)",
      "topics": [
        "calc_nse"
      ]
    },
    {
      "page": "calc_r",
      "title": "Pearson Correlation Coefficient (r)",
      "topics": [
        "calc_r"
      ]
    },
    {
      "page": "calc_r2",
      "title": "Coefficient of Determination (R-squared)",
      "topics": [
        "calc_r2"
      ]
    },
    {
      "page": "calc_rmse",
      "title": "Root Mean Squared Error (RMSE)",
      "topics": [
        "calc_rmse"
      ]
    },
    {
      "page": "daylight_hours",
      "title": "Daylight Hours",
      "topics": [
        "daylight_hours"
      ]
    },
    {
      "page": "dew_point_temperature",
      "title": "Dew Point Temperature",
      "topics": [
        "dew_point_temperature"
      ]
    },
    {
      "page": "et0_abtew",
      "title": "Abtew ET0 Model",
      "concept": [
        "radiation models"
      ],
      "topics": [
        "et0_abtew"
      ]
    },
    {
      "page": "et0_caprio",
      "title": "Caprio ET0 Model",
      "concept": [
        "radiation models"
      ],
      "topics": [
        "et0_caprio"
      ]
    },
    {
      "page": "et0_fao_pm",
      "title": "FAO Penman-Monteith Reference Evapotranspiration",
      "topics": [
        "et0_fao_pm"
      ]
    },
    {
      "page": "et0_hargreaves",
      "title": "Hargreaves (1975) Radiation-Based ET0 Model",
      "concept": [
        "radiation models"
      ],
      "topics": [
        "et0_hargreaves"
      ]
    },
    {
      "page": "et0_irmak",
      "title": "Irmak ET0 Model",
      "concept": [
        "radiation models"
      ],
      "topics": [
        "et0_irmak"
      ]
    },
    {
      "page": "et0_jensen_haise",
      "title": "Jensen-Haise ET0 Model",
      "concept": [
        "radiation models"
      ],
      "topics": [
        "et0_jensen_haise"
      ]
    },
    {
      "page": "et0_jones_ritchie",
      "title": "Jones-Ritchie ET0 Model",
      "concept": [
        "radiation models"
      ],
      "topics": [
        "et0_jones_ritchie"
      ]
    },
    {
      "page": "et0_makkink",
      "title": "Makkink ET0 Model",
      "concept": [
        "radiation models"
      ],
      "topics": [
        "et0_makkink"
      ]
    },
    {
      "page": "et0_mcguinness_bordne",
      "title": "McGuinness-Bordne ET0 Model",
      "concept": [
        "radiation models"
      ],
      "topics": [
        "et0_mcguinness_bordne"
      ]
    },
    {
      "page": "et0_priestley_taylor",
      "title": "Priestley-Taylor ET0 Model",
      "concept": [
        "radiation models"
      ],
      "topics": [
        "et0_priestley_taylor"
      ]
    },
    {
      "page": "et0_rad_all",
      "title": "Compute ET0 Using All 10 Radiation-Based Models and FAO Penman-Monteith",
      "topics": [
        "et0_rad_all"
      ]
    },
    {
      "page": "et0_turc",
      "title": "Turc ET0 Model",
      "concept": [
        "radiation models"
      ],
      "topics": [
        "et0_turc"
      ]
    },
    {
      "page": "evaluate_models",
      "title": "Evaluate Multiple ET0 Models Against a Reference",
      "topics": [
        "evaluate_models"
      ]
    },
    {
      "page": "extraterrestrial_radiation",
      "title": "Extraterrestrial Radiation",
      "topics": [
        "extraterrestrial_radiation"
      ]
    },
    {
      "page": "jhansi_weather",
      "title": "Sample Meteorological Data from Jhansi, India",
      "topics": [
        "jhansi_weather"
      ]
    },
    {
      "page": "latent_heat",
      "title": "Latent Heat of Vaporization",
      "topics": [
        "latent_heat"
      ]
    },
    {
      "page": "metrics",
      "title": "Statistical Evaluation Metrics for ET0 Models",
      "topics": [
        "metrics"
      ]
    },
    {
      "page": "net_radiation",
      "title": "Net Radiation",
      "topics": [
        "net_radiation"
      ]
    },
    {
      "page": "plot_annual_bar",
      "title": "Annual ET0 Bar Chart",
      "topics": [
        "plot_annual_bar"
      ]
    },
    {
      "page": "plot_monthly_comparison",
      "title": "Monthly Comparison Plot",
      "topics": [
        "plot_monthly_comparison"
      ]
    },
    {
      "page": "plot_scatter",
      "title": "Scatter Plot of Predicted vs Observed ET0",
      "topics": [
        "plot_scatter"
      ]
    },
    {
      "page": "plot_taylor",
      "title": "Taylor Diagram",
      "topics": [
        "plot_taylor"
      ]
    },
    {
      "page": "plots",
      "title": "Visualization Functions for ET0 Model Comparison",
      "topics": [
        "plots"
      ]
    },
    {
      "page": "psychrometric_constant",
      "title": "Psychrometric Constant",
      "topics": [
        "psychrometric_constant"
      ]
    },
    {
      "page": "radiation_models",
      "title": "Radiation-Based ET0 Models",
      "topics": [
        "radiation_models"
      ]
    },
    {
      "page": "saturation_vapor_pressure",
      "title": "Saturation Vapor Pressure",
      "topics": [
        "saturation_vapor_pressure"
      ]
    },
    {
      "page": "slope_vapor_pressure",
      "title": "Slope of Saturation Vapor Pressure Curve",
      "topics": [
        "slope_vapor_pressure"
      ]
    },
    {
      "page": "solar_radiation",
      "title": "Solar Radiation (Angstrom)",
      "topics": [
        "solar_radiation"
      ]
    }
  ],
  "_readme": "https://github.com/samirigfri/et0radmodels/raw/HEAD/README.md",
  "_rundeps": [],
  "_vignettes": [
    {
      "source": "introduction.Rmd",
      "filename": "introduction.html",
      "title": "Introduction to ET0RadModels",
      "engine": "knitr::rmarkdown",
      "headings": [
        "Overview",
        "Radiation-Based Models",
        "Quick Start",
        "Loading the Package and Data",
        "Computing ET0 for a Single Day",
        "Computing All 10 Radiation-Based Models at Once",
        "Evaluating Model Performance Against FAO-PM",
        "Visualization",
        "Scatter Plot",
        "Taylor Diagram",
        "References"
      ],
      "created": "2026-09-08 12:42:58",
      "modified": "2026-09-08 12:42:58",
      "commits": 1
    }
  ],
  "_score": 4,
  "_indexed": true,
  "_nocasepkg": "et0radmodels",
  "_universes": [
    "samirigfri"
  ],
  "_binaries": [
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "1.0.0",
      "date": "2026-10-22T10:54:43.000Z",
      "distro": "resolute",
      "commit": "95bedca95b2b58d7a0506b188e04bd0f9ad2a087",
      "fileid": "https://r2.ropensci.org/04b9552308b8e520c1051e239d5cdfac04e68c83d7c841bf94b24931f6854319",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/samirigfri/actions/runs/39766039128"
    },
    {
      "r": "4.6.1",
      "os": "linux",
      "version": "1.0.0",
      "date": "2026-10-22T10:54:36.000Z",
      "distro": "resolute",
      "commit": "95bedca95b2b58d7a0506b188e04bd0f9ad2a087",
      "fileid": "https://r2.ropensci.org/cd00a5fe12649f9e4c612e5e9904de17503c275c8aa8ce2d7a058a6ab99936fe",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/samirigfri/actions/runs/39766039128"
    },
    {
      "r": "4.5.3",
      "os": "mac",
      "version": "1.0.0",
      "date": "2026-10-22T11:15:01.000Z",
      "commit": "95bedca95b2b58d7a0506b188e04bd0f9ad2a087",
      "fileid": "https://r2.ropensci.org/2347c29be6c0a1aa01bac38cf2b51ca5ed34ec66b6732307675175d41033d57a",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/samirigfri/actions/runs/39766039128"
    },
    {
      "r": "4.6.1",
      "os": "mac",
      "version": "1.0.0",
      "date": "2026-10-22T11:10:25.000Z",
      "commit": "95bedca95b2b58d7a0506b188e04bd0f9ad2a087",
      "fileid": "https://r2.ropensci.org/2a754389bc5c2e0fb5dfc22e1527e24c4c7d741e7dfee354f5db8745b003a64b",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/samirigfri/actions/runs/39766039128"
    },
    {
      "r": "4.6.0",
      "os": "wasm",
      "version": "1.0.0",
      "date": "2026-10-22T10:54:36.000Z",
      "commit": "95bedca95b2b58d7a0506b188e04bd0f9ad2a087",
      "fileid": "https://r2.ropensci.org/f489d6370dd4e634609ee76e52c0fc81b8153a879ee9df6df05832a983aa27be",
      "status": "success",
      "buildurl": "https://github.com/r-universe/samirigfri/actions/runs/39766039128"
    },
    {
      "r": "4.7.0",
      "os": "win",
      "version": "1.0.0",
      "date": "2026-10-22T10:54:02.000Z",
      "commit": "95bedca95b2b58d7a0506b188e04bd0f9ad2a087",
      "fileid": "https://r2.ropensci.org/926a8365fd02fd72e1ab026aa67c667f2ed7d146a63c7ecd99e5a50e87eb3f3a",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/samirigfri/actions/runs/39766039128"
    },
    {
      "r": "4.5.3",
      "os": "win",
      "version": "1.0.0",
      "date": "2026-10-22T10:53:53.000Z",
      "commit": "95bedca95b2b58d7a0506b188e04bd0f9ad2a087",
      "fileid": "https://r2.ropensci.org/1c14dff63f1740130345b80a99c2224aa37616d60d2e91d5a619ca07f411430f",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/samirigfri/actions/runs/39766039128"
    },
    {
      "r": "4.6.1",
      "os": "win",
      "version": "1.0.0",
      "date": "2026-10-22T10:53:57.000Z",
      "commit": "95bedca95b2b58d7a0506b188e04bd0f9ad2a087",
      "fileid": "https://r2.ropensci.org/794e366c1cbd3b0c520423a710d7aee9fb98abc402dab1fcc45e2d2ea6fcc3f5",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/samirigfri/actions/runs/39766039128"
    }
  ]
}