{
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  "Package": "TrenchR",
  "Title": "Tools for Microclimate and Biophysical Ecology",
  "Description": "Tools for translating environmental change into organismal\nresponse. Microclimate models to vertically scale weather\nstation data to organismal heights. The biophysical modeling\ntools include both general models for heat flows and specific\nmodels to predict body temperatures for a variety of\nectothermic taxa. Additional functions model and temporally\npartition air and soil temperatures and solar radiation.\nUtility functions estimate the organismal and environmental\nparameters needed for biophysical ecology. 'TrenchR' focuses on\nrelatively simple and modular functions so users can create\ntransparent and flexible biophysical models. Many functions are\nderived from Gates (1980) <doi:10.1007/978-1-4612-6024-0> and\nCampbell and Norman (1988) <isbn:9780387949376>.",
  "Version": "1.2.1",
  "Maintainer": "Lauren Buckley <lbuckley@uw.edu>",
  "Authors@R": "c(\nperson(\"Lauren\", \"Buckley\", role = c(\"aut\", \"cre\"), email = \"lbuckley@uw.edu\", comment = c(ORCID = \"0000-0003-1315-3818\")),\nperson(\"Bryan\", \"Briones Ortiz\", role = c(\"aut\")),\nperson(\"Isaac\", \"Caruso\", role = c(\"aut\")),\nperson(\"Aji\", \"John\", role = c(\"aut\"), comment = c(ORCID = \"0000-0002-4401-1401\")),\nperson(\"Ofir\", \"Levy\", role = c(\"aut\"), comment = c(ORCID = \"0000-0003-0920-1207\")),\nperson(\"Abigail\", \"Meyer\", role = c(\"aut\")),\nperson(\"Eric\", \"Riddell\", role = c(\"aut\"), comment = c(ORCID = \"0000-0002-4229-4911\")),\nperson(\"Yutaro\", \"Sakairi\", role = c(\"aut\")),\nperson(\"Juniper\", \"Simonis\", role = c(\"aut\"), comment = c(ORCID = \"0000-0001-9798-0460\")),\nperson(\"Brian\", \"Helmuth\", role = c(\"ctb\"), comment = c(ORCID = \"0000-0003-0180-3414\"))\n)",
  "License": "MIT + file LICENSE",
  "Date": "2026-04-28",
  "URL": "https://trenchproject.github.io/TrenchR/,\nhttps://github.com/trenchproject/TrenchR",
  "BugReports": "https://github.com/trenchproject/TrenchR/issues",
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  "Repository": "https://trenchproject.r-universe.dev",
  "Date/Publication": "2026-04-29 01:49:33 UTC",
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  "Packaged": {
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  "Author": "Lauren Buckley [aut, cre] (ORCID:\n<https://orcid.org/0000-0003-1315-3818>),\nBryan Briones Ortiz [aut],\nIsaac Caruso [aut],\nAji John [aut] (ORCID: <https://orcid.org/0000-0002-4401-1401>),\nOfir Levy [aut] (ORCID: <https://orcid.org/0000-0003-0920-1207>),\nAbigail Meyer [aut],\nEric Riddell [aut] (ORCID: <https://orcid.org/0000-0002-4229-4911>),\nYutaro Sakairi [aut],\nJuniper Simonis [aut] (ORCID: <https://orcid.org/0000-0001-9798-0460>),\nBrian Helmuth [ctb] (ORCID: <https://orcid.org/0000-0003-0180-3414>)",
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  "_exports": [
    "actual_vapor_pressure",
    "air_temp_profile",
    "air_temp_profile_neutral",
    "air_temp_profile_segment",
    "airpressure_from_elev",
    "azimuth_angle",
    "boundary_layer_resistance",
    "celsius_to_kelvin",
    "day_of_year",
    "daylength",
    "dec_angle",
    "degree_days",
    "degrees_to_radians",
    "direct_solar_radiation",
    "diurnal_radiation_variation",
    "diurnal_temp_variation_sine",
    "diurnal_temp_variation_sineexp",
    "diurnal_temp_variation_sinesqrt",
    "DRYAIR",
    "external_resistance_to_water_vapor_transfer",
    "fahrenheit_to_celsius",
    "fahrenheit_to_kelvin",
    "free_or_forced_convection",
    "Grashof_number",
    "Grashof_number_Gates",
    "heat_transfer_coefficient",
    "heat_transfer_coefficient_approximation",
    "heat_transfer_coefficient_simple",
    "kelvin_to_celsius",
    "latent_heat_vaporization_h2o",
    "mass_from_length",
    "monthly_solar_radiation",
    "Nusselt_from_Grashof",
    "Nusselt_from_Reynolds",
    "Nusselt_number",
    "partition_solar_radiation",
    "Prandtl_number",
    "proportion_diffuse_solar_radiation",
    "proportion_silhouette_area",
    "proportion_silhouette_area_shapes",
    "Qconduction_animal",
    "Qconduction_substrate",
    "Qconvection",
    "Qemitted_thermal_radiation",
    "Qevaporation",
    "Qmetabolism_from_mass",
    "Qmetabolism_from_mass_temp",
    "Qnet_Gates",
    "Qradiation_absorbed",
    "Qthermal_radiation_absorbed",
    "radians_to_degrees",
    "Reynolds_number",
    "saturation_vapor_pressure",
    "saturation_water_vapor_pressure",
    "soil_conductivity",
    "soil_specific_heat",
    "soil_temperature",
    "soil_temperature_equation",
    "soil_temperature_function",
    "soil_temperature_integrand",
    "solar_noon",
    "solar_radiation",
    "specific_heat_h2o",
    "stefan_boltzmann_constant",
    "surface_area_from_length",
    "surface_area_from_mass",
    "surface_area_from_volume",
    "surface_roughness",
    "T_sky",
    "Tb_butterfly",
    "Tb_CampbellNorman",
    "Tb_Gates",
    "Tb_Gates2",
    "Tb_grasshopper",
    "Tb_limpet",
    "Tb_limpetBH",
    "Tb_lizard",
    "Tb_lizard_Fei",
    "Tb_mussel",
    "Tb_salamander_humid",
    "Tb_snail",
    "Tbed_mussel",
    "TPC",
    "TPC_beta",
    "Tsoil",
    "VAPPRS",
    "volume_from_length",
    "von_karman_constant",
    "WETAIR",
    "wind_speed_profile_neutral",
    "wind_speed_profile_segment",
    "zenith_angle"
  ],
  "_help": [
    {
      "page": "actual_vapor_pressure",
      "title": "Actual Vapor Pressure from Dewpoint Temperature",
      "concept": [
        "biophysical models"
      ],
      "topics": [
        "actual_vapor_pressure"
      ]
    },
    {
      "page": "air_temp_profile",
      "title": "Air Temperature Profile using MICRO Routine",
      "concept": [
        "microclimate functions"
      ],
      "topics": [
        "air_temp_profile"
      ]
    },
    {
      "page": "air_temp_profile_neutral",
      "title": "Air Temperature at a Specified Height Under Neutral Conditions",
      "concept": [
        "microclimate functions"
      ],
      "topics": [
        "air_temp_profile_neutral"
      ]
    },
    {
      "page": "air_temp_profile_segment",
      "title": "Air Temperature at a Specified Height",
      "concept": [
        "microclimate functions"
      ],
      "topics": [
        "air_temp_profile_segment"
      ]
    },
    {
      "page": "airpressure_from_elev",
      "title": "Air Pressure from Elevation",
      "concept": [
        "utility functions"
      ],
      "topics": [
        "airpressure_from_elev"
      ]
    },
    {
      "page": "angle-conversions",
      "title": "Convert Angles Between Radians and Degrees",
      "topics": [
        "angle conversions",
        "degrees_to_radians",
        "radians_to_degrees"
      ]
    },
    {
      "page": "azimuth_angle",
      "title": "Azimuth Angle",
      "concept": [
        "utility functions"
      ],
      "topics": [
        "azimuth_angle"
      ]
    },
    {
      "page": "boundary_layer_resistance",
      "title": "Boundary Layer Resistance",
      "concept": [
        "biophysical models"
      ],
      "topics": [
        "boundary_layer_resistance"
      ]
    },
    {
      "page": "constants",
      "title": "General Use Constants",
      "topics": [
        "constants",
        "latent_heat_vaporization_h2o",
        "specific_heat_h2o",
        "stefan_boltzmann_constant",
        "von_karman_constant"
      ]
    },
    {
      "page": "day_of_year",
      "title": "Calendar Day from Date",
      "concept": [
        "utility functions"
      ],
      "topics": [
        "day_of_year"
      ]
    },
    {
      "page": "daylength",
      "title": "Day Length",
      "concept": [
        "utility functions"
      ],
      "topics": [
        "daylength"
      ]
    },
    {
      "page": "dec_angle",
      "title": "Solar Declination in Radians",
      "concept": [
        "utility functions"
      ],
      "topics": [
        "dec_angle"
      ]
    },
    {
      "page": "degree_days",
      "title": "Degree Days",
      "concept": [
        "microclimate functions"
      ],
      "topics": [
        "degree_days"
      ]
    },
    {
      "page": "direct_solar_radiation",
      "title": "Direct Solar Radiation",
      "concept": [
        "microclimate functions"
      ],
      "topics": [
        "direct_solar_radiation"
      ]
    },
    {
      "page": "diurnal_radiation_variation",
      "title": "Hourly Solar Radiation",
      "concept": [
        "microclimate functions"
      ],
      "topics": [
        "diurnal_radiation_variation"
      ]
    },
    {
      "page": "diurnal_temp_variation_sine",
      "title": "Hourly Temperature Variation assuming a Sine Interpolation",
      "concept": [
        "microclimate functions"
      ],
      "topics": [
        "diurnal_temp_variation_sine"
      ]
    },
    {
      "page": "diurnal_temp_variation_sineexp",
      "title": "Hourly Temperature Variation assuming Sine and Exponential Components",
      "concept": [
        "microclimate functions"
      ],
      "topics": [
        "diurnal_temp_variation_sineexp"
      ]
    },
    {
      "page": "diurnal_temp_variation_sinesqrt",
      "title": "Hourly Temperature Variation using Sine and Square Root Functions",
      "concept": [
        "microclimate functions"
      ],
      "topics": [
        "diurnal_temp_variation_sinesqrt"
      ]
    },
    {
      "page": "DRYAIR",
      "title": "Properties of Dry Air",
      "topics": [
        "DRYAIR"
      ]
    },
    {
      "page": "external_resistance_to_water_vapor_transfer",
      "title": "External Resistance to Water Vapor Transfer",
      "concept": [
        "biophysical models"
      ],
      "topics": [
        "external_resistance_to_water_vapor_transfer"
      ]
    },
    {
      "page": "free_or_forced_convection",
      "title": "Determine if Convection is Free or Forced",
      "concept": [
        "biophysical models"
      ],
      "topics": [
        "free_or_forced_convection"
      ]
    },
    {
      "page": "Grashof_number",
      "title": "Grashof Number",
      "concept": [
        "biophysical models"
      ],
      "topics": [
        "Grashof_number"
      ]
    },
    {
      "page": "Grashof_number_Gates",
      "title": "Grashof Number as in Gates (1980)",
      "concept": [
        "biophysical models"
      ],
      "topics": [
        "Grashof_number_Gates"
      ]
    },
    {
      "page": "heat_transfer_coefficient",
      "title": "Estimate the Heat Transfer Coefficient Empirically",
      "concept": [
        "biophysical models"
      ],
      "topics": [
        "heat_transfer_coefficient"
      ]
    },
    {
      "page": "heat_transfer_coefficient_approximation",
      "title": "Estimate the Heat Transfer Coefficient Using a Spherical Approximation",
      "concept": [
        "biophysical models"
      ],
      "topics": [
        "heat_transfer_coefficient_approximation"
      ]
    },
    {
      "page": "heat_transfer_coefficient_simple",
      "title": "Estimate the Heat Transfer Coefficient using Simple Relationships",
      "concept": [
        "biophysical models"
      ],
      "topics": [
        "heat_transfer_coefficient_simple"
      ]
    },
    {
      "page": "mass_from_length",
      "title": "Organism Mass from Length",
      "concept": [
        "allometric functions"
      ],
      "topics": [
        "mass_from_length"
      ]
    },
    {
      "page": "monthly_solar_radiation",
      "title": "Average Monthly Solar Radiation",
      "concept": [
        "microclimate functions"
      ],
      "topics": [
        "monthly_solar_radiation"
      ]
    },
    {
      "page": "Nusselt_from_Grashof",
      "title": "Nusselt Number from the Grashof Number",
      "concept": [
        "biophysical models"
      ],
      "topics": [
        "Nusselt_from_Grashof"
      ]
    },
    {
      "page": "Nusselt_from_Reynolds",
      "title": "Nusselt Number from the Reynolds Number",
      "concept": [
        "biophysical models"
      ],
      "topics": [
        "Nusselt_from_Reynolds"
      ]
    },
    {
      "page": "Nusselt_number",
      "title": "Nusselt Number",
      "concept": [
        "biophysical models"
      ],
      "topics": [
        "Nusselt_number"
      ]
    },
    {
      "page": "partition_solar_radiation",
      "title": "Diffuse Fraction for Partitioning Solar Radiation",
      "concept": [
        "microclimate functions"
      ],
      "topics": [
        "partition_solar_radiation"
      ]
    },
    {
      "page": "Prandtl_number",
      "title": "Prandtl Number",
      "concept": [
        "biophysical models"
      ],
      "topics": [
        "Prandtl_number"
      ]
    },
    {
      "page": "proportion_diffuse_solar_radiation",
      "title": "Ratio of Diffuse to Direct Solar Radiation",
      "concept": [
        "microclimate functions"
      ],
      "topics": [
        "proportion_diffuse_solar_radiation"
      ]
    },
    {
      "page": "proportion_silhouette_area",
      "title": "Organism Silhouette Area",
      "concept": [
        "allometric functions"
      ],
      "topics": [
        "proportion_silhouette_area"
      ]
    },
    {
      "page": "proportion_silhouette_area_shapes",
      "title": "Organism Silhouette Area using Shape Approximations",
      "concept": [
        "allometric functions"
      ],
      "topics": [
        "proportion_silhouette_area_shapes"
      ]
    },
    {
      "page": "Qconduction_animal",
      "title": "Conductance Assuming Animal Thermal Conductivity is Rate Limiting",
      "concept": [
        "biophysical models"
      ],
      "topics": [
        "Qconduction_animal"
      ]
    },
    {
      "page": "Qconduction_substrate",
      "title": "Conductance Assuming Substrate Thermal Conductivity is Rate Limiting",
      "concept": [
        "biophysical models"
      ],
      "topics": [
        "Qconduction_substrate"
      ]
    },
    {
      "page": "Qconvection",
      "title": "Organismal Convection",
      "concept": [
        "biophysical models"
      ],
      "topics": [
        "Qconvection"
      ]
    },
    {
      "page": "Qemitted_thermal_radiation",
      "title": "Emitted Thermal Radiation",
      "concept": [
        "biophysical models"
      ],
      "topics": [
        "Qemitted_thermal_radiation"
      ]
    },
    {
      "page": "Qevaporation",
      "title": "Heat Loss Associated with Evaporative Water Loss",
      "concept": [
        "biophysical models"
      ],
      "topics": [
        "Qevaporation"
      ]
    },
    {
      "page": "Qmetabolism_from_mass",
      "title": "Metabolism as a Function of Mass",
      "concept": [
        "biophysical models"
      ],
      "topics": [
        "Qmetabolism_from_mass"
      ]
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