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Applied Optics

Applied Optics


  • Vol. 35, Iss. 24 — Aug. 20, 1996
  • pp: 4812–4819

Lidar aerosol backscatter cross sections in the 2-μm near-infrared wavelength region

Sury Chudamani, James D. Spinhirne, and Antony D. Clarke  »View Author Affiliations

Applied Optics, Vol. 35, Issue 24, pp. 4812-4819 (1996)

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Lidar backscatter cross-sectional measurements at 1.064, 0.532, and 1.54 μm were acquired during November 1989 and May–June 1990 around the Pacific region by the NASA DC-8 aircraft as part of the Global Backscatter Experiment. The primary motivation for the Global Backscatter Experiment was the study of lidar backscatter cross sections for the development of a spaceborne wind-sensing lidar. Direct backscatter measurements obtained by the NASA Goddard Space Flight Center visible and infrared lidar are compared with backscatter cross sections calculated from aerosol size distributions obtained by particle counters. Results for one flight with pronounced aerosol layers in the upper troposphere southeast of Japan are presented. Because 2-μm region wavelengths are possible candidates for a spaceborne wind-sensing lidar, the visible and infrared lidar backscatter cross sections at 1.064, 0.532, and 1.54 μm are extrapolated to the 2-μm region. The extrapolated 2-μm cross sections are compared with lidar measurements at 9 μm. A significant range in the ratio of 2–9-μm backscatter cross sections is found, but a large number of points concentrate near ratios of three to ten. A large number of 1.064- and 1.54-μm cross sections were binned to provide an estimate of backscatter for various percentiles for the flight. The ratio of the 50-percentile backscatter values at 1.064 and 1.54 μm suggest a λ−1.9 to λ−3.0 wavelength dependence of aerosol backscatter cross section in the near infrared for the observational case.

© 1996 Optical Society of America

Original Manuscript: July 13, 1995
Revised Manuscript: March 13, 1996
Published: August 20, 1996

Sury Chudamani, James D. Spinhirne, and Antony D. Clarke, "Lidar aerosol backscatter cross sections in the 2-μm near-infrared wavelength region," Appl. Opt. 35, 4812-4819 (1996)

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  1. S. W. Henderson, P. J. M. Suni, C. P. Hale, S. M. Hannon, J. R. Magee, D. L. Bruns, E. H. Yuen, “Coherent laser radar at 2 μm using solid-state lasers,” IEEE Trans. Geosci. Remote Sensing 31, 4–13 (1993). [CrossRef]
  2. M. J. Kavaya, S. W. Henderson, R. G. Frehlich, “Theory of CW lidar aerosol backscatter measurements and development of a 2.1-μm solid-state pulsed laser radar for aerosol backscatter profiling,” Final Rep. on NASA Cont. NAS8-37580 (NASA Marshall Space Flight Center, Huntsville, Ala., 1991), pp. 41–60.
  3. J. D. Spinhirne, S. Chudamani, J. F. Cavanaugh, J. L. Bufton, “Aerosol and cloud backscatter at 1.06, 1.54, and 0.53 μm by airborne Nd:YAG–methane Raman lidar,” Appl. Opt. to be published.
  4. R. T. Menzies, D. M. Tratt, “Airborne CO2 coherent lidar for measurements of atmospheric aerosol and cloud backscatter,” Appl. Opt. 33, 5698–5711 (1994). [CrossRef] [PubMed]
  5. A. D. Clarke, “Thermo-optic technique for in situ analysis of size-resolved aerosol physiochemistry,” Atmos. Env. 25, a 635–644 (1991). [CrossRef]
  6. R. F. Pueschel, J. M. Livingstone, G. V. Ferry, T. R. De-Felice, “Aerosol abundances and optical characteristics in the Pacific Basin free troposphere,” Atmos. Env. 28, 951–960 (1994). [CrossRef]
  7. J. Rothermel, W. D. Jones, M. Jarzembski, V. Srivastava, D. Hampton, “In situ backscatter measurements over Pacific Ocean using two coherent focused CO2 lidars,” in Proceedings of the Seventh Symposium on Meteorological Observations and Instrumentation and Special Sessions on Laser Atmospheric Studies (American Meteorological Society, Boston, Mass., 1991), pp. J257–J260.
  8. G. S. Kent, U. O. Farrukh, P. H. Wang, A. Deepak, “SAGE I and SAM II measurements of 1.0-μm aerosol extinction in the free troposphere,” J. Appl. Meteorol. 27, 269–279 (1988). [CrossRef]
  9. G. S. Kent, M. P. McCormick, S. K. Schaffner, “Global optical climatalogy of the free tropospheric aerosol from 1.0-μm satellite occultation measurements,” J. Geophys. Res. 96, 5249–5267 (1991). [CrossRef]
  10. J. N. Porter, A. D. Clarke, G. Ferry, R. F. Pueschel, “Aircraft studies of size-dependent aerosol sampling through inlets,” J. Geophys. Res. 97, 3815–3824 (1992). [CrossRef]
  11. A. D. Clarke, “Atmospheric nuclei in the Pacific Midtroposphere: their nature, concentration and evolution,” J. Geophys. Res. 98, 20633–20647 (1993). [CrossRef]
  12. K. F. Palmer, D. Williams, “Optical constants of sulfuric acid; application to the clouds of Venus,” Appl. Opt. 14, 208– 219 (1975). [PubMed]
  13. E. P. Shettle, R. W. Fenn, “Models for the aerosols of the lower atmosphere and the effects of humidity variations on their optical properties,” Env. Res. Paper AFGL-TR-79-0214 (U.S. Air Force Geophysical Laboratory, Hanscom Air Force Base, Mass., 1979), p. 94.
  14. O. B. Toon, J. B. Pollack, B. N. Khare, “The optical constants of several atmospheric aerosol species: ammonium sulfate, aluminum oxide, and sodium chloride,” J. Geophys. Res. 33, 5733–5748 (1976). [CrossRef]
  15. V. Srivastava, M. Jarzembski, D. A. Bowdle, “Comparison of calculated aerosol backscatter at 9.1- and 2.1-μm wavelengths,” Appl. Opt. 31, 1904–1906 (1992). [CrossRef] [PubMed]
  16. D. R. Cutten, R. F. Pueschel, D. A. Bowdle, V. Srivastava, A. D. Clarke, J. Rothermel, J. D. Spinhirne, R. T. Menzies, “Multi-wavelength comparison of modeled and measured remote tropospheric aerosol backscatter over Pacific Ocean,” J. Geophys. Res. 101, 9375–9389 (1996). [CrossRef]

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