Differential absorption and scattering sensitivity predictions, Volume 2627
Richard T. Thompson, Old Dominion University. Dept. of Physics and Geophysical Sciences, Langley Research Center, United States. National Aeronautics and Space Administration
National Aeronautics and Space Administration, 1976 - Technology & Engineering - 39 pages
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20 km altitude Absorption and Scattering absorption coefficient Applied Optics atm cm atmosphere constituency background backscattered laser Byer calculated for ozone coefficients and integrated Column Content Measurement concen curve density Detection detector gate determined deviation in ozone Differential Absorption electronic Equation 9 evaluate techniques factor Figure 9 function of altitude function of range gas concentration jet engine jet wake joule l0 ns Langley Research Center least squares LIDAR return signals limitations linewidth N02 concentration measurements NASA shuttle Nitrogen Oxides nm plotted noise number of photons ozone column content ozone concentration measure ozone depletion Parametric study photomultiplier Photons per range Poisson statistics pollutant predicted standard deviation predicted uncertainty range cell range resolved concentration Rayleigh extinction coefficients Rayleigh scattering reflect the precision resolved concentration measurements resonance absorption retroreflector return signal strength ruby laser scattering coefficient Schotland shown in Figure signal return Spectral Radiance tration Ultraviolet uncertainties as calculated various ranges