This function estimates the effective radiant temperature of the sky (K) using either the Brunt or Swinbank formulations (Gates 1980) .
T_sky(T_a, formula)numeric ambient air temperature (K)
character Formula to use, current choices are: "Brunt", "Swinbank".
numeric T_sky (K).
Gates DM (1980). Biophysical Ecology. Springer-Verlag, New York, NY, USA.
Other biophysical models:
Grashof_number_Gates(),
Grashof_number(),
Nusselt_from_Grashof(),
Nusselt_from_Reynolds(),
Nusselt_number(),
Prandtl_number(),
Qconduction_animal(),
Qconduction_substrate(),
Qconvection(),
Qemitted_thermal_radiation(),
Qevaporation(),
Qmetabolism_from_mass_temp(),
Qmetabolism_from_mass(),
Qnet_Gates(),
Qradiation_absorbed(),
Qthermal_radiation_absorbed(),
Reynolds_number(),
Tb_CampbellNorman(),
Tb_Gates2(),
Tb_Gates(),
Tb_butterfly(),
Tb_grasshopper(),
Tb_limpetBH(),
Tb_limpet(),
Tb_lizard_Fei(),
Tb_lizard(),
Tb_mussel(),
Tb_salamander_humid(),
Tb_snail(),
Tbed_mussel(),
Tsoil(),
actual_vapor_pressure(),
boundary_layer_resistance(),
external_resistance_to_water_vapor_transfer(),
free_or_forced_convection(),
heat_transfer_coefficient_approximation(),
heat_transfer_coefficient_simple(),
heat_transfer_coefficient(),
saturation_vapor_pressure(),
saturation_water_vapor_pressure()
T_sky(T_a=293, formula="Swinbank")
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