Extinction coefficient, 158
of crop canopies, 249-252
Fetch, 94
Flick's diffusion law, 77,87
First law of thermodynamics, 59
Flux equations for a turbulent
atmosphere, 94
Flux measurement by eddy
correlation, 93
Fourier's heat low, 77
Free convection, 93
Friction velocity, 68,94
Gibbs free energy of water, 54
Grashof number, 100
Gravitational potential, see Water
potential
Gross photosynthesis of crop,
see also Photosynthesis
Heat flux equation, 79
Heat storage in enimals, 186
Heat stress index, 216,217
Heat waves, 19
Humidity, see Relative humidity
Humid microenvironments, 50
Hydraulic conductivity, 129
Ideal gas law, 38
Irradiance, 150
Kirchhoff's law, 154
Lambert's cosine law, 154
Latent heat
cutaneous, 199
respiratory, 190
transport, 4
of vaporization, 37
Leaf area index, 247,248
Leaf temperature, 224-227
Index
Long-wave radiation, see
Radiation, long-wave
Looping plume, 64
Mass Flux, equation for, 79
Mass transport, 4
Matric potential, see Water
potential
Metabolic rate
active, 189, 190
of animals, 189, 190
basal, 189, 190
of humans, 210
of poikilotherms, 189
Microclimate, 3
Microenvironment, 3
temperatures, 15
Mie scattering, 161
Momentum transport, 4,94
Net photosynthesis of crops, 223,
224
Newton's law of viscosity, 77
Nusselt number, 100
Ohm's law, 79
Operative temperature, 198, 199
Optimum leaf form, 244,245
Osmotic potential, see Water
potential
Penman equation, 225,233,234
Penman transformation, 219,232
Photon, 147
Photon flux, 148
Photosynthesis, 235-238,241,
242
in canopies, 259-263
Physical constants, 281
Plank's law, 159
Plank's photon energy equation,
147