INDEX 



527 



Vapor pressure, saturation. (See Satura- 

 tion vapor pressure.) 



water vapor, definition, 347 

 Vaporization, latent heat of, water, 343 

 Velocity, conversion factors, 11-12 



conversion tables, 110-116 

 Velocity of earth, angular, 130 

 Velocity of sound in air, 390-393 

 Velocity of sound in upper atmosphere, 



NACA standard, 284 

 Virial coefficients, air and water vapor, 393 

 Virial form of the Equation of State, 391 

 Virtual temperature, definition, 295 



increment of saturated air, 295-301 

 Viscosity, conversion factors, 12 



defined, 394 



dynamic and kinematic of air, 394 



kinematic, NACA standard upper at- 

 mosphere, 284 



lower atmosphere, 394-395 

 Visibility, 452-478 

 Visual range, 452-478 

 Visual sensitivity, 448-452 

 Volume, conversion factors, 10-11 



specific, conversion factors, 12 



Water, albedo of, 442 



area in latitude belts, 484 



condensed, thermodynamic properties 



of, 343 

 density, 403 



drops, scattering coefficients, 446-447 

 inch, pressure unit, conversion factors, 



14 

 precipitable in saturated pseudoadia- 



batic atmosphere, 327 



Water, 



radiation absorption, 445 

 reflectivity, 444 



saturation vapor pressure, English 

 units, 354-359 

 metric units, 351-353 

 sea, absorption of solar radiation, 446 

 melting point, 406 

 specific heat, 406 

 specific heat, 343 

 thermal conductivity, 403 

 Water vapor, absorption of solar radiation, 

 423-425 

 definitions and specifications in the at- 

 mosphere, 347-349 

 density at saturation, 381-385 

 pressure, saturation, 351-359 

 properties of, 341-342 

 scattering of solar radiation, 432 

 thermodynamic constants, 289 

 transmission of solar radiation, 425-426 

 Watt, conversion factors, 15 

 Weight, conversion factors, 14 

 conversion tables, 108-109 

 Weight of water in rain gage, conversion to 



depth of rain, 407 

 Wet-bulb temperature, definition, 348 

 Wien's law, 411 

 Wind, geostrophic, 120-125 



gradient, 126-129 

 Wind scale, Beaufort, 119 

 Work, conversion factors, 14 



Yard, conversion factors, 9-10 

 Year, mean solar, 11 



days to decimals of, 102-105 



cp-. 



