Humid Operative Environmental Temperature of a Salamander

The function estimates the humid body temperature (C, operative environmental temperature) using an adaptation of Campbell and Norman (1998) described in Riddell et al. (2018) .

Tb_salamander_humid(r_i, r_b, D, T_a, elev, e_a, e_s, Qabs, epsilon = 0.96)

Arguments

r_i

numeric internal (skin) resistance (s cm^-1).

r_b

numeric boundary layer resistance (s cm^-1).

D

numeric body diameter (m); can estimate as diameter = 0.0016*log(mass) + 0.0061 for mass(g).

T_a

numeric ambient temperature (C).

elev

numeric elevation (m).

e_a

numeric actual vapor pressure (kPa).

e_s

numeric saturation vapor pressure (kPa).

Qabs

numeric Solar and thermal radiation absorbed (W).

epsilon

numeric emissivity of salamander skin (proportion).

Value

numeric humid operative temperature (C).

References

Campbell GS, Norman JM (1998). Introduction to environmental biophysics, 2nd ed. edition. Springer, New York. ISBN 0387949372.

Riddell EA, Odom JP, Damm JD, Sears MW (2018). “Plasticity reveals hidden resistance to extinction under climate change in the global hotspot of salamander diversity.” Science Advances, 4(4). doi:10.1126/sciadv.aar5471 .

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_Gates2(), Tb_Gates(), Tb_butterfly(), Tb_grasshopper(), Tb_limpetBH(), Tb_limpet(), Tb_lizard_Fei(), Tb_lizard(), Tb_mussel(), 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()

Author

Eric Riddell

Examples

  Tb_salamander_humid(r_i     = 4,
                      r_b     = 1,
                      D       = 0.01,
                      T_a     = 20,
                      elev    = 500,
                      e_a     = 2.0,
                      e_s     = 2.5,
                      Qabs    = 400,
                      epsilon = 0.96)
#> [1] 17.90782