{
  "_id": "6a114446acfb0bcc41ce7294",
  "Package": "simET",
  "Type": "Package",
  "Title": "Tools for Simulation of Evapotranspiration of Field Crops and\nSoil Water Balance",
  "Version": "1.0.3",
  "Date": "2023-07-21",
  "Authors@R": "c(person(\"Minguo\",\"Liu\",email=\"liumg15@lzu.edu.cn\",role=c(\"aut\",\"cre\")),\nperson(\"Huimin\",\"Yang\",email=\"huimyang@lzu.edu.cn\",role=c(\"dtc\",\"fnd\")))",
  "Description": "Supports the calculation of meteorological characteristics\nin evapotranspiration research and reference crop\nevapotranspiration, and offers three models to simulate crop\nevapotranspiration and soil water balance in the field,\nincluding single crop coefficient and dual crop coefficient, as\nwell as the Shuttleworth-Wallace model. These calculations main\nrefer to Allen et al.(1998, ISBN:92-5-104219-5), Teh (2006,\nISBN:1-58-112-998-X), and Liu et al.(2006)\n<doi:10.1016/j.agwat.2006.01.018>.",
  "License": "GPL (>= 3)",
  "Encoding": "UTF-8",
  "LazyData": "true",
  "RoxygenNote": "7.1.2",
  "NeedsCompilation": "no",
  "Packaged": {
    "Date": "2026-05-23 06:04:35 UTC",
    "User": "root"
  },
  "Author": "Minguo Liu [aut, cre], Huimin Yang [dtc, fnd]",
  "Maintainer": "Minguo Liu <liumg15@lzu.edu.cn>",
  "Config/pak/sysreqs": "cmake make libicu-dev",
  "Repository": "https://liumiguo.r-universe.dev",
  "Date/Publication": "2023-08-19 15:30:56 UTC",
  "RemoteUrl": "https://github.com/cran/simET",
  "RemoteRef": "HEAD",
  "RemoteSha": "86aa8e8a5f51ccc195207441ae907246811a4234",
  "MD5sum": "0313ec98931e7e1843a793202d081661",
  "_user": "liumiguo",
  "_type": "src",
  "_file": "simET_1.0.3.tar.gz",
  "_fileid": "786d815fc979da29a590ddae1a27a4f19b7d66d5fe00ec2f3dd87a543512dea1",
  "_filesize": 328224,
  "_sha256": "786d815fc979da29a590ddae1a27a4f19b7d66d5fe00ec2f3dd87a543512dea1",
  "_created": "2026-05-23T06:04:35.000Z",
  "_published": "2026-05-23T06:08:06.395Z",
  "_distro": "noble",
  "_jobs": [
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  "_buildurl": "https://github.com/r-universe/liumiguo/actions/runs/26325250740",
  "_status": "success",
  "_host": "GitHub-Actions",
  "_upstream": "https://github.com/cran/simET",
  "_commit": {
    "id": "86aa8e8a5f51ccc195207441ae907246811a4234",
    "author": "Minguo Liu <liumg15@lzu.edu.cn>",
    "committer": "cran-robot <csardi.gabor+cran@gmail.com>",
    "message": "version 1.0.3\n",
    "time": 1692459056
  },
  "_maintainer": {
    "name": "Minguo Liu",
    "email": "liumg15@lzu.edu.cn"
  },
  "_registered": true,
  "_dependencies": [
    {
      "package": "R",
      "version": ">= 3.5.0",
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    {
      "package": "dplyr",
      "role": "Imports"
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    {
      "package": "ggplot2",
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      "package": "rlang",
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      "package": "stringr",
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      "package": "tidyr",
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  ],
  "_owner": "cran",
  "_selfowned": false,
  "_usedby": 0,
  "_updates": [],
  "_tags": [],
  "_stars": 0,
  "_contributors": [
    {
      "user": "liumgatcau",
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      "uuid": 94879122
    }
  ],
  "_userbio": {
    "uuid": 32541156,
    "type": "user",
    "name": "Minguo Liu"
  },
  "_downloads": {
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    "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/simET"
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  "_searchresults": 26,
  "_rbuild": "4.6.0",
  "_assets": [
    "extra/citation.cff",
    "extra/citation.html",
    "extra/citation.json",
    "extra/citation.txt",
    "extra/contents.json",
    "extra/simET.html",
    "manual.pdf"
  ],
  "_realowner": "liumiguo",
  "_cranurl": false,
  "_releases": [
    {
      "version": "1.0.0",
      "date": "2022-09-30"
    },
    {
      "version": "1.0.1",
      "date": "2022-10-16"
    },
    {
      "version": "1.0.2",
      "date": "2023-08-10"
    },
    {
      "version": "1.0.3",
      "date": "2023-08-19"
    }
  ],
  "_exports": [
    "%>%",
    "cal_ActualVapourPressure_for_hourly",
    "cal_ActualVapourPressure_from_dewPoint",
    "cal_ActualVapourPressure_from_psychrometricData",
    "cal_ActualVapourPressure_from_RHmax",
    "cal_ActualVapourPressure_from_RHmaxAndRHmin",
    "cal_ActualVapourPressure_from_RHmean",
    "cal_afterRedistribution",
    "cal_airVaporPressureDeficit_meanCanopyflow",
    "cal_angerFromSouth",
    "cal_atmosphericPressure",
    "cal_bulkBoundaryLayerResistance",
    "cal_canopyPenetrationProbabilityForNetRadiation",
    "cal_canopyResistance",
    "cal_canopyTem",
    "cal_capillaryRise",
    "cal_cropRoughnessLength",
    "cal_daylightHours",
    "cal_DeepPercolation",
    "cal_Dei_for_DualKc",
    "cal_DP_for_singleKc",
    "cal_DPe_for_DualKc",
    "cal_DPr_for_DualKc",
    "cal_eddyDiffusivity_Canopytop",
    "cal_eddyDiffusivity_heightZ",
    "cal_ET0_from_PM",
    "cal_ET0_from_PM_for_daily",
    "cal_ET0_from_PM_for_hourly",
    "cal_extraterrestrialRadiation_for_daily",
    "cal_extraterrestrialRadiation_for_shorter",
    "cal_frictionVelocity",
    "cal_hourAngle",
    "cal_inverseRelativeDistance_Earth_sun",
    "cal_Kc_max_for_DualKc",
    "cal_Kcend_for_singleKc",
    "cal_Kcini_for_SingleKc",
    "cal_Kcmid_for_singleKc",
    "cal_Kr_for_DualKc",
    "cal_latentHeatFluxesForCrop",
    "cal_latentHeatFluxesForSoil",
    "cal_localDolarTime",
    "cal_meanCanopyFlowToReferenceLevel",
    "cal_meanSaturationVapourPressure",
    "cal_netLongwaveRadiation",
    "cal_netRadiation",
    "cal_netRadiationForCrop",
    "cal_netRadiationForSoil",
    "cal_netRadiationForSystem",
    "cal_netSolarRadiation",
    "cal_percolationForExcessWater",
    "cal_psychrometriCconstant",
    "cal_reductionFactorForE",
    "cal_reductionFactorForT",
    "cal_relativeHumidity",
    "cal_Rs_from_Na",
    "cal_saturationVapourPressure",
    "cal_sensibleHeatFluxesForCrop",
    "cal_sensibleHeatFluxesForSoil",
    "cal_skySolarRadiation_withas_bs",
    "cal_skySolarRadiation_withas_elevation",
    "cal_slopeOfSaturationVapourPressureCurve",
    "cal_soilHeatFlux",
    "cal_soilHeatFlux_day",
    "cal_soilHeatFlux_general",
    "cal_soilHeatFlux_hourly",
    "cal_soilHeatFlux_monthly",
    "cal_soilSurfaceResistance",
    "cal_soilSurfaceToMeanCanopyFlow",
    "cal_solarDeclination",
    "cal_solarDeclination_in_FAO",
    "cal_solarInclination",
    "cal_solarRadiation",
    "cal_sunsetHourAngle",
    "cal_sunsetTime",
    "cal_TemMean",
    "cal_TEW_for_DualKc",
    "cal_totalLatentHeatFlux",
    "cal_WaterStressCoef",
    "cal_windSpeed_Canopy",
    "cal_zeroPlaneHeight",
    "compare_model_plot",
    "convert_angert_to_radian",
    "convert_Date_to_dayofyear",
    "convert_degreesCelsius_to_Fahrenheit",
    "convert_Fahrenheit_to_degreesCelsius",
    "convert_Rad_unit",
    "convert_windSpeed_to_2m",
    "create_modelDF",
    "estimate_ea",
    "estimate_ET0_with_TmaxAndTmin",
    "estimate_goodnessOfFit",
    "estimate_LAI_for_alfalfa",
    "estimate_Rs_for_islandLocations",
    "estimate_Rs_from_airTemDiff",
    "Kcb_adj_for_DualKc",
    "linear_interpolation",
    "Model_DualKc",
    "Model_single_Kc",
    "Model_SW"
  ],
  "_datasets": [
    {
      "name": "FIalfalfa",
      "title": "A example dataset of alfalfa under flood irrigation",
      "object": "FIalfalfa",
      "class": [
        "data.frame"
      ],
      "fields": [
        "Year",
        "Tre1",
        "Tre2",
        "Julian",
        "Cut",
        "Latitude",
        "Longitude",
        "Altitude",
        "Precipitation",
        "Na",
        "Tmax",
        "Tmin",
        "Wind",
        "RHmean",
        "RHmin",
        "Rs",
        "Height",
        "LAI",
        "Stage",
        "Irrigation",
        "GroundwaterDepth",
        "SoilWater"
      ],
      "rows": 161,
      "table": true,
      "tojson": true
    },
    {
      "name": "SDIalfalfa",
      "title": "A example dataset of alfalfa under subsurface drip irrigation",
      "object": "SDIalfalfa",
      "class": [
        "data.frame"
      ],
      "fields": [
        "Year",
        "Tre1",
        "Tre2",
        "Julian",
        "Cut",
        "Latitude",
        "Longitude",
        "Altitude",
        "Precipitation",
        "Na",
        "Tmax",
        "Tmin",
        "Wind",
        "RHmean",
        "RHmin",
        "Rs",
        "Height",
        "LAI",
        "Stage",
        "Irrigation",
        "GroundwaterDepth",
        "SoilWater"
      ],
      "rows": 161,
      "table": true,
      "tojson": true
    }
  ],
  "_help": [
    {
      "page": "cal_ActualVapourPressure_for_hourly",
      "title": "Calculating actual vapour pressure for hourly time step",
      "topics": [
        "cal_ActualVapourPressure_for_hourly"
      ]
    },
    {
      "page": "cal_ActualVapourPressure_from_dewPoint",
      "title": "Actual vapour pressure derived from dewpoint temperature",
      "topics": [
        "cal_ActualVapourPressure_from_dewPoint"
      ]
    },
    {
      "page": "cal_ActualVapourPressure_from_psychrometricData",
      "title": "Actual vapour pressure (ea) derived from psychrometric data",
      "topics": [
        "cal_ActualVapourPressure_from_psychrometricData"
      ]
    },
    {
      "page": "cal_ActualVapourPressure_from_RHmax",
      "title": "Calculating actual vapour pressure derived from RHmax",
      "topics": [
        "cal_ActualVapourPressure_from_RHmax"
      ]
    },
    {
      "page": "cal_ActualVapourPressure_from_RHmaxAndRHmin",
      "title": "Actual vapour pressure derived from RHmax and RHmin",
      "topics": [
        "cal_ActualVapourPressure_from_RHmaxAndRHmin"
      ]
    },
    {
      "page": "cal_ActualVapourPressure_from_RHmean",
      "title": "Calculating actual vapour pressure derived from RHmean",
      "topics": [
        "cal_ActualVapourPressure_from_RHmean"
      ]
    },
    {
      "page": "cal_afterRedistribution",
      "title": "Calculating the volumetric water content after redistribution",
      "topics": [
        "cal_afterRedistribution"
      ]
    },
    {
      "page": "cal_airVaporPressureDeficit_meanCanopyflow",
      "title": "Calculating air vapor pressure deficit at the mean canopy",
      "topics": [
        "cal_airVaporPressureDeficit_meanCanopyflow"
      ]
    },
    {
      "page": "cal_angerFromSouth",
      "title": "Calculating anger from south",
      "topics": [
        "cal_angerFromSouth"
      ]
    },
    {
      "page": "cal_atmosphericPressure",
      "title": "Calculating atmospheric pressure",
      "topics": [
        "cal_atmosphericPressure"
      ]
    },
    {
      "page": "cal_bulkBoundaryLayerResistance",
      "title": "Calculating bulk boundary layer resistance",
      "topics": [
        "cal_bulkBoundaryLayerResistance"
      ]
    },
    {
      "page": "cal_canopyPenetrationProbabilityForNetRadiation",
      "title": "The canopy penetration probability for net radiation",
      "topics": [
        "cal_canopyPenetrationProbabilityForNetRadiation"
      ]
    },
    {
      "page": "cal_canopyResistance",
      "title": "Calculating canopy resistance",
      "topics": [
        "cal_canopyResistance"
      ]
    },
    {
      "page": "cal_canopyTem",
      "title": "Calculating canopy temperature",
      "topics": [
        "cal_canopyTem"
      ]
    },
    {
      "page": "cal_capillaryRise",
      "title": "Calculating capillary rise",
      "topics": [
        "cal_capillaryRise"
      ]
    },
    {
      "page": "cal_cropRoughnessLength",
      "title": "Calculating the crop roughness length",
      "topics": [
        "cal_cropRoughnessLength"
      ]
    },
    {
      "page": "cal_daylightHours",
      "title": "Calculating Daylight hours",
      "topics": [
        "cal_daylightHours"
      ]
    },
    {
      "page": "cal_DeepPercolation",
      "title": "Calculating Deep percolation",
      "topics": [
        "cal_DeepPercolation"
      ]
    },
    {
      "page": "cal_Dei_for_DualKc",
      "title": "calculating the depletion in the topsoil layer at the end of the day",
      "topics": [
        "cal_Dei_for_DualKc"
      ]
    },
    {
      "page": "cal_DP_for_singleKc",
      "title": "Calculating deep percolation",
      "topics": [
        "cal_DP_for_singleKc"
      ]
    },
    {
      "page": "cal_DPe_for_DualKc",
      "title": "Deep percolation loss from the topsoil layer",
      "topics": [
        "cal_DPe_for_DualKc"
      ]
    },
    {
      "page": "cal_DPr_for_DualKc",
      "title": "Deep percolation loss from the root layer",
      "topics": [
        "cal_DPr_for_DualKc"
      ]
    },
    {
      "page": "cal_eddyDiffusivity_Canopytop",
      "title": "Calculating eddy diffusivity at the canopy top",
      "topics": [
        "cal_eddyDiffusivity_Canopytop"
      ]
    },
    {
      "page": "cal_eddyDiffusivity_heightZ",
      "title": "Calculating eddy diffusivity at height z",
      "topics": [
        "cal_eddyDiffusivity_heightZ"
      ]
    },
    {
      "page": "cal_ET0_from_PM",
      "title": "calculating reference evapotranspiration from Penman-Monteith method",
      "topics": [
        "cal_ET0_from_PM"
      ]
    },
    {
      "page": "cal_ET0_from_PM_for_daily",
      "title": "Calculating reference evapotranspiration from Penman-Monteith for daily",
      "topics": [
        "cal_ET0_from_PM_for_daily"
      ]
    },
    {
      "page": "cal_ET0_from_PM_for_hourly",
      "title": "Calculating reference evapotranspiration from Penman-Monteith method for hourly time step",
      "topics": [
        "cal_ET0_from_PM_for_hourly"
      ]
    },
    {
      "page": "cal_extraterrestrialRadiation_for_daily",
      "title": "Calculating extraterrestrial radiation for daily periods",
      "topics": [
        "cal_extraterrestrialRadiation_for_daily"
      ]
    },
    {
      "page": "cal_extraterrestrialRadiation_for_shorter",
      "title": "Calculating extraterrestrial radiation for hourly or shorter periods",
      "topics": [
        "cal_extraterrestrialRadiation_for_shorter"
      ]
    },
    {
      "page": "cal_frictionVelocity",
      "title": "Calculating friction velocity",
      "topics": [
        "cal_frictionVelocity"
      ]
    },
    {
      "page": "cal_hourAngle",
      "title": "Calculating hour angle",
      "topics": [
        "cal_hourAngle"
      ]
    },
    {
      "page": "cal_inverseRelativeDistance_Earth_sun",
      "title": "Calculating inverse relative distance Earth-sun",
      "topics": [
        "cal_inverseRelativeDistance_Earth_sun"
      ]
    },
    {
      "page": "cal_Kc_max_for_DualKc",
      "title": "An upper limit on the evaporation and transpiration from any cropped surface",
      "topics": [
        "cal_Kc_max_for_DualKc"
      ]
    },
    {
      "page": "cal_Kcend_for_singleKc",
      "title": "Crop coefficient for the end of the late season stage",
      "topics": [
        "cal_Kcend_for_singleKc"
      ]
    },
    {
      "page": "cal_Kcini_for_SingleKc",
      "title": "Calculating Kcini value",
      "topics": [
        "cal_Kcini_for_SingleKc"
      ]
    },
    {
      "page": "cal_Kcmid_for_singleKc",
      "title": "Crop coefficient for the mid-season stage",
      "topics": [
        "cal_Kcmid_for_singleKc"
      ]
    },
    {
      "page": "cal_Kr_for_DualKc",
      "title": "Dimensionless evaporation reduction coefficient",
      "topics": [
        "cal_Kr_for_DualKc"
      ]
    },
    {
      "page": "cal_latentHeatFluxesForCrop",
      "title": "Calculating latent heat fluxes for crop",
      "topics": [
        "cal_latentHeatFluxesForCrop"
      ]
    },
    {
      "page": "cal_latentHeatFluxesForSoil",
      "title": "Calculating latent heat fluxes for soil",
      "topics": [
        "cal_latentHeatFluxesForSoil"
      ]
    },
    {
      "page": "cal_localDolarTime",
      "title": "Calculating local solar time",
      "topics": [
        "cal_localDolarTime"
      ]
    },
    {
      "page": "cal_meanCanopyFlowToReferenceLevel",
      "title": "Calculating mean canopy flow to reference level",
      "topics": [
        "cal_meanCanopyFlowToReferenceLevel"
      ]
    },
    {
      "page": "cal_meanSaturationVapourPressure",
      "title": "Calculating mean saturation vapour pressure",
      "topics": [
        "cal_meanSaturationVapourPressure"
      ]
    },
    {
      "page": "cal_netLongwaveRadiation",
      "title": "Calculating net longwave radiation Rnl",
      "topics": [
        "cal_netLongwaveRadiation"
      ]
    },
    {
      "page": "cal_netRadiation",
      "title": "Calculating net radiation Rn",
      "topics": [
        "cal_netRadiation"
      ]
    },
    {
      "page": "cal_netRadiationForCrop",
      "title": "Calculating net radiation available to the crop",
      "topics": [
        "cal_netRadiationForCrop"
      ]
    },
    {
      "page": "cal_netRadiationForSoil",
      "title": "Calculating net radiation available to the soil",
      "topics": [
        "cal_netRadiationForSoil"
      ]
    },
    {
      "page": "cal_netRadiationForSystem",
      "title": "Calculating net radiation available to the system(soil and crop)",
      "topics": [
        "cal_netRadiationForSystem"
      ]
    },
    {
      "page": "cal_netSolarRadiation",
      "title": "Calculating net solar (shortware radiation) Rns",
      "topics": [
        "cal_netSolarRadiation"
      ]
    },
    {
      "page": "cal_percolationForExcessWater",
      "title": "Calculating percolation for excess water",
      "topics": [
        "cal_percolationForExcessWater"
      ]
    },
    {
      "page": "cal_psychrometriCconstant",
      "title": "Calculating psychrometric constant",
      "topics": [
        "cal_psychrometriCconstant"
      ]
    },
    {
      "page": "cal_reductionFactorForE",
      "title": "Calculating reduction factor for evaporation",
      "topics": [
        "cal_reductionFactorForE"
      ]
    },
    {
      "page": "cal_reductionFactorForT",
      "title": "calculating reduction factor for transpiration",
      "topics": [
        "cal_reductionFactorForT"
      ]
    },
    {
      "page": "cal_relativeHumidity",
      "title": "Calculating relative humidity",
      "topics": [
        "cal_relativeHumidity"
      ]
    },
    {
      "page": "cal_Rs_from_Na",
      "title": "Calculating Solar radiation from actual duration of sunshine",
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