Summary
Recent satellite experiments have measured the radiance of the earth at ultraviolet wavelengths and the data thus obtained has been used to determine atmospheric ozone concentrations. It is pointed out in this paper that in the presence of significant concentrations of aerosols at high altitudes, it is not possible from observations of backscattered ultraviolet radiation to separate the effects of aerosols from those attributable to ozone.
The earth's daytime horizon was scanned on several occasions between 1963 and 1967 from an altitude of 80 km. For at least one of the flights analyzed we interpret the data to indicate the existence of an aerosol layer at 50 km. This observation, in combination with related observations of other experimenters, implies a limitation on the ability of the backscattered ultraviolet technique to determine ozone concentrations, particularly at altitudes in the region between 35 and 50 km. This limitation may be overcome by altering the viewing geometry and making observations of the earth's horizon. Data thus obtained may be used to deduce the concentrations of both ozone and aerosols.
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References
G. P. Anderson, C. A. Barth, F. Cayla andJ. London,Satellite observations of the vertical ozone distribution in the upper stratosphere, Ann. Geophys.25 (1969), 341–345.
O. Anderson, J. Geisler, J. R. Lawson andR. E. Newell,M.I.T. Aeronomy Experiment-M.I.T./CSDL E-2220 (1968), 72–75.
B. R. Clemesha andY. Nakamura,Dust in the upper atmosphere, Nature237 (1972), 328–329.
D. D. Elliott,Effect of a high altitude (50 km) aerosol layer on topside ozone sounding, Space Research11 (1971), 857–861.
L. M. Elterman,Aerosol measurements in the troposphere and stratosphere, App. Optics5 (1966), 1769–1776.
C. R. Gray,An Horizon Definition Experiment, presented at AIAA Guidance, Control, and Flight Mechanics Conference, Princeton, New Jersey, Aug. 18–20; Paper no. 69-869, 1969.
C. R. Gray, H. L. Malchow, D. C. Merritt andR. E. Var,Aerosol Monitoring by Satellite Horizon Scanning, Presented as AIAA Paper 71-1111 at Joint Conference on Environmental Pollutants, Palo Alto, Calif. Nov. 8–10, 1971. To be published in AIAA, J. Spacecraft Rockets (1973).
A. J. Krueger, D. F. Heath andC. L. Mateer,Variations in the stratospheric ozone field inferred from Nimbus satellite observations, Pure and Appl. Geophys.106–108 (1973), 1254.
C. L. Mateer,Twilight colors seen from space, NCAR Quarterly20 (August 1968).
T. P. McGarty,The estimation of the constituent densities of the upper atmosphere by means of a recursive filter algorithm, IEEE Trans. Aut. Control, AC-16 (1971), 817–823.
M. P. Meinel andA. B. Meinel,Late twilight glow of the ash stratum from the eruption of Agung volcano, Science142 (1963), 582–583.
R. E. Newell andC. R. Gray,Meteorological and Ecological Monitoring of the Stratosphere and Mesosphere, Final report of M.I.T. Aeronomy Project, NASA CR-2094, August 1972.
F. Rossler,The aerosol layer in the stratosphere, Space Res.8 (1968), 633–636.
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Cunnold, D.M., Gray, C.R. & Merritt, D.C. Aerosols: A limitation on the determination of ozone from BUV observations. PAGEOPH 106, 1264–1271 (1973). https://doi.org/10.1007/BF00881078
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DOI: https://doi.org/10.1007/BF00881078