Operative Environmental Temperature of an Ectotherm Based on a Variant of Gates (1980)

The function predicts body temperatures (C, operative environmental temperature) of an ectotherm using the approximation in Gates (1980) . The function omits evaporative and metabolic heat loss.

Tb_Gates2(A, D, T_g, T_a, Qabs, u, epsilon)

Arguments

A

numeric surface area (m²).

D

numeric characteristic dimension for conduction (meters).

T_g

numeric ground surface temperature (C).

T_a

numeric ambient air temperature (C).

Qabs

numeric Solar radiation absorbed (W).

u

numeric Wind speed (m s^-1).

epsilon

numeric longwave infrared emissivity of skin (proportion), 0.95 to 1 for most animals (Gates 1980) .

Value

numeric operative environmental temperature (C).

References

Gates DM (1980). Biophysical Ecology. Springer-Verlag, New York, NY, USA.

See also

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(), T_sky(), Tb_CampbellNorman(), 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()

Examples

  Tb_Gates2(A       = 1, 
            D       = 0.001, 
            T_g     = 27, 
            T_a     = 37, 
            Qabs    = 2, 
            u       = 0.1, 
            epsilon = 1) 
#> [1] 35.01682