An Introduction to Environmental Biophysics
"well written and illustrated" -- Bulletin of the American Meteorological Society |
Contents
Introduction | 1 |
11 Microenvironments | 3 |
13 Mass and Momentum Transport | 4 |
15 Continuity in the Biosphere | 5 |
16 Models Heterogeneity and Scale | 7 |
17 Applications | 9 |
References | 13 |
Temperature | 15 |
96 The Water Balance | 144 |
Radiation Basics | 147 |
101 The Electromagnetic Spectrum | 148 |
102 Blackbody Radiation | 149 |
104 The Cosine Law | 156 |
105 Attenuation of Radiation | 157 |
106 Spectral Distribution of Blackbody Radiation | 159 |
107 Spectral Distribution of Solar and Thermal Radiation | 160 |
22 Random Temperature Variation | 18 |
23 Modeling Vertical Variation in Air Temperature | 20 |
24 Modeling Temporal Variation in Air Temperature | 23 |
26 Temperature and Biological Development | 26 |
27 Thermal Time | 28 |
28 Calculating Thermal Time from Weather Data | 30 |
29 Temperature Extremes and the Computation of Thermal Time | 32 |
211 Thermal Time in Relation To Other Environmental Variables | 33 |
References | 34 |
Problems | 35 |
Water Vapor and Other Gases | 37 |
31 Specifying Gas Concentration | 38 |
Saturation Conditions | 40 |
33 Condition of Partial Saturation | 42 |
34 Spatial and Temporal Variation of Atmospheric Water Vapor | 47 |
35 Estimating the Vapor Concentration in Air | 49 |
References | 50 |
Liquid Water in Organisms and their Environment | 53 |
42 Water Potentials in Organisms and their Surroundings | 58 |
References | 61 |
Wind | 63 |
51 Characteristics of Atmospheric Turbulence | 64 |
52 Wind as a Vector | 65 |
53 Modeling the Variation in Wind Speed | 66 |
54 Finding the Zero Plane Displacement and the Roughness Length | 68 |
55 Wind Within Crop Canopies | 72 |
References | 74 |
Problems | 75 |
Heat and Mass Transport | 77 |
61 Molar Fluxes | 78 |
62 Integration of the Transport Equations | 79 |
64 Resistors and Conductors in Series | 80 |
65 Resistors in Parallel | 81 |
Problems | 85 |
Conductances for Heat and Mass Transfer | 87 |
72 Molecular Diffusivities | 88 |
73 Diffusive Conductance of the Integument | 90 |
74 Turbulent Transport | 93 |
75 Fetch and Buoyancy | 96 |
76 Conductance of the Atmospheric Surface Layer | 97 |
77 Conductances for Heat and Mass Transfer in Laminar Forced Convection | 99 |
78 Cylinders Spheres and Animal Shapes | 102 |
79 Conductances in Free Convection | 103 |
710 Combined Forced and Free Convection | 105 |
712 Determining the Characteristic Dimension of an Object | 106 |
713 Free Stream Turbulence | 108 |
References | 110 |
Heat Flow in the Soil | 113 |
Volumetric Heat Capacity | 117 |
Thermal Conductivity | 119 |
84 Thermal Diffusivity and Admittance of Soils | 123 |
85 Heat Transfer from Animals to a Substrate | 126 |
References | 128 |
Water Flow in Soil | 129 |
92 Infiltration of Water into Soil | 131 |
93 Redistribution of Water in Soil | 133 |
94 Evaporation from the Soil Surface | 136 |
95 Transpiration and Plant Water Uptake | 139 |
108 Radiant Emittance | 162 |
References | 165 |
Radiation Fluxes in Natural Environments | 167 |
111 Sun Angles and Daylength | 168 |
112 Estimating Direct and Diffuse Shortwave Irradiance | 171 |
113 Solar Radiation under Clouds | 173 |
114 Radiation Balance | 175 |
115 Absorptivities for Thermal and Solar Radiation | 176 |
116 View Factors | 178 |
References | 183 |
Problems | 184 |
Animals and their Environment | 185 |
122 Metabolism | 189 |
123 Latent Heat Exchange | 190 |
124 Conduction of Heat in Animal Coats and Tissue | 194 |
125 Qualitative Analysis of Animal Thermal Response | 197 |
126 Operative Temperature | 198 |
127 Applications of the Energy Budget Equation | 200 |
128 The Transient State | 201 |
129 Complexities of Animal Energetics | 202 |
1210 Animals and Water | 204 |
References | 205 |
Problems | 206 |
Humans and their Environment | 209 |
132 Survival in Cold Environments | 211 |
133 Wind Chill and Standard Operative Temperature | 213 |
134 Survival in Hot Environments | 215 |
135 The Humid Operative Temperature | 219 |
136 Comfort | 220 |
References | 222 |
Plants and Plant Communities | 223 |
141 Leaf Temperature | 224 |
142 Aerodynamic Temperature of Plant Canopies | 229 |
143 Radiometric Temperature of Plant Canopies | 230 |
144 Transpiration and the Leaf Energy Budget | 231 |
145 Canopy Transpiration | 233 |
146 Photosynthesis | 235 |
148 Biochemical Models for Assimilation | 239 |
149 Control of Stomatal Conductance | 241 |
1410 Optimum Leaf Form | 244 |
References | 245 |
Problems | 246 |
The Light Environment of Plant Canopies | 247 |
152 Detailed Models of Light Interception by Canopies | 250 |
153 Transmission of Diffuse Radiation | 254 |
154 Light Scattering in Canopies | 255 |
156 Transmission of Radiation by Sparse CanopiesSoil Reflectance Effects | 257 |
157 Daily Integration | 258 |
159 Calculating Canopy Assimilation from Leaf Assimilation | 259 |
1510 Remote Sensing of Canopy Cover and IPAR | 264 |
1511 Remote Sensing and Canopy Temperature | 271 |
1512 Canopy Reflectivity Emissivity versus Leaf Reflectivity Emissivity | 273 |
1514 Indirect Sensing of Canopy Architecture | 275 |
276 | |
277 | |
Appendix | 279 |
283 | |
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Common terms and phrases
absorptivity air temperature animal assimilation rate Assume atmosphere average blackbody body temperature boundary layer conductance calculated canopy coat coefficient computed constant convection crop depends depth emissivity emittance energy budget environment environmental biophysics equation estimate Example exchange FIGURE flux density function heat flux height hemi-surface area horizontal humidity increases infrared thermometer intercepted irradiance J/kg latent heat loss leaf angle distribution leaf area index leaf temperature leaves mass maximum measured metabolic rate mol m-2 mole fraction NDVI operative temperature organism percent photons photosynthesis plant canopies Rabs radiant flux radiative ratio reflectance resistance saturation vapor pressure soil surface solar radiation Solution sphere stomatal stomatal conductance sunlit surface temperature thermal conductivity transpiration transport turbulence units values vapor concentration vapor deficit variables variation view factor volumetric heat capacity W/m² water content water loss water potential water vapor wavelength wind speed zenith angle zero