Abstract

An update is provided on the Jet Propulsion Laboratory aerosol backscatter climatology database, with emphasis on the impact of the June 1991 eruption of Mt. Pinatubo. The data set is acquired at thermal infrared wavelengths with a range-gated coherent CO2 lidar system, which has been in regular operation since 1984. A number of analyses have been carried out to assess long-term trends in the tropospheric and lower stratospheric aerosol backscatter, as observed from the lidar site at Pasadena, California.

© 1994 Optical Society of America

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  1. R. T. Menzies, M. J. Kavaya, P. H. Flamant, D. A. Haner, “Atmospheric aerosol backscatter measurements using a tunable coherent CO2 lidar,” Appl. Opt. 23, 2510–2517 (1984).
    [CrossRef] [PubMed]
  2. LAWS Instrument Panel, Earth Observing System (National Aeronautics and Space Administration, Washington, D.C.), Vol. IIg.
  3. J. W. Bilbro, R. Jayroe, W. Baker, “Status of the Laser Atmospheric Wind Sounder,” in Coherent Laser Radar: Technology and Applications, Vol. 12 of 1991 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1991), pp. 238–241.
  4. R. Targ, M. J. Kavaya, R. M. Huffaker, R. L. Bowles, “Coherent lidar airborne windshear sensor: performance evaluation,” Appl. Opt. 30, 2013–2026 (1991).
    [CrossRef] [PubMed]
  5. S. W. Henderson, C. P. Hale, J. R. Magee, M. J. Kavaya, A. V. Huffaker, “Eye-safe coherent laser radar system at 2.1 μm using Tm, Ho:YAG lasers,” Opt. Lett. 16, 773–775 (1991).
    [CrossRef] [PubMed]
  6. R. T. Menzies, G. M. Ancellet, D. M. Tratt, M. G. Wurtele, J. C. Wright, W. Pi, “Altitude and seasonal characteristics of aerosol backscatter at thermal infrared wavelengths using lidar observations from coastal California,” J. Geophys. Res. 94, 9897–9908 (1989).
    [CrossRef]
  7. G. M. Ancellet, R. T. Menzies, D. M. Tratt, “Atmospheric backscatter vertical profiles at 9.2 and 10.6 μm: a comparative study,” Appl. Opt. 27, 4907–4912 (1988).
    [CrossRef] [PubMed]
  8. M. J. Post, F. F. Hall, R. A. Richter, T. R. Lawrence, “Aerosol backscattering profiles at λ = 10.6 μm,” Appl. Opt. 21, 2442–2446 (1982).
    [CrossRef] [PubMed]
  9. M. J. Post, “Aerosol backscattering profiles at CO2 wavelengths: the NOAA data base,” Appl. Opt. 23, 2507–2509 (1984).
    [CrossRef] [PubMed]
  10. J. Rothermel, W. D. Jones, “Ground-based measurements of atmospheric backscatter and absorption using coherent CO2 lidar,” Appl. Opt. 24, 3487–3496 (1985).
    [CrossRef] [PubMed]
  11. G. K. Yue, G. S. Kent, U. O. Farrukh, A. Deepak, “Modeling atmospheric aerosol backscatter at CO2 wavelengths. 3: Effects of changes in wavelength and ambient conditions,” Appl. Opt. 22, 1671–1678 (1983).
    [CrossRef] [PubMed]
  12. M. J. Post, “Atmospheric purging of El Chichón debris,” J. Geophys. Res. 91, 5222–5228 (1986).
    [CrossRef]
  13. R. T. Menzies, D. M. Tratt, A. M. Brothers, S. H. Dermenjian, C. Esproles, D. A. Haner, M. S. Shumate, “Design and performance measurements of an airborne aerosol backscatter lidar,” in Laser Radar V, R. J. Becherer, ed., Proc. Soc. Photo-Opt. Instrum. Eng. 1222, 112–117 (1990).
  14. R. T. Menzies, D. M. Tratt, “Aerosol and cloud observations with a CO2 backscatter lidar on the NASA DC-8 GLOBE Pacific missions,” in Proceedings of the Seventh Symposium on Meteorological Observations and Instrumentation: Laser Atmospheric Studies, New Orleans, La. 1991, ed. (American Meteorological Society, Boston, Mass., 1991), pp. J265–J267.
  15. D. A. Haner, R. T. Menzies, “Reflectance characteristics of reference materials used in lidar hard target calibration,” Appl. Opt. 28, 857–864 (1989).
    [CrossRef] [PubMed]
  16. M. J. Kavaya, R. T. Menzies, “Lidar aerosol backscatter measurements: systematic, modeling, and calibration error considerations,” Appl. Opt. 24, 3444–3453 (1985).
    [CrossRef] [PubMed]
  17. R. T. Menzies, M. J. Post, “GLOBE backscatter: climatologies and mission results,” in Laser Radar VI, R. J. Becherer, ed., Proc. Soc. Photo-Opt. Instrum. Eng. 1416, 139–146 (1991).
  18. M. J. Post, R. E. Cupp, “CO2 lidar backscatter profiles over Hawaii during fall 1988,” Appl. Opt. 31, 4590–4599 (1992).
    [CrossRef] [PubMed]
  19. G. S. Kent, G. K. Yue, “The modeling of CO2 lidar backscatter from stratospheric aerosols,” J. Geophys. Res. 96, 5279–5292 (1991).
    [CrossRef]
  20. M. J. Post, “Aerosol backscatter profiles at 10.59 and 9.25 micrometers near Mauna Loa, Hawaii, 1988,” in 5th Conference on Coherent Laser Radar: Technology and Applications, J. W. Bilbro, C. Werner, eds., Proc. Soc. Photo-Opt. Instrum. Eng. 1181, 260–262 (1989).
  21. W. G. Read, L. Froidevaux, J. W. Waters, “UARS MLS Measurements of SO2 and O3 in the plume of Mount Pinatubo volcano,” paper V22E-4 presented at the Fall Meeting of the American Geophysical Union, 7–11 December 1992; Eos Trans. AGU 73, 625 (1992).
  22. D. M. Winker, M. T. Osborn, “Preliminary analysis of observations of the Pinatubo volcanic plume with a polarization-sensitive lidar,” Geophys. Res. Lett. 19, 171–174 (1992).
    [CrossRef]
  23. E. Robinson, T. E. DeFoor, “Stratospheric aerosol conditions over Mauna Loa during recent quiescent volcanic periods,” in Aerosols and Climate, P. V. Hobbs, M. P. McCormick, eds. (Deepak, Hampton, Va., 1988), pp. 325–334.

1992

M. J. Post, R. E. Cupp, “CO2 lidar backscatter profiles over Hawaii during fall 1988,” Appl. Opt. 31, 4590–4599 (1992).
[CrossRef] [PubMed]

D. M. Winker, M. T. Osborn, “Preliminary analysis of observations of the Pinatubo volcanic plume with a polarization-sensitive lidar,” Geophys. Res. Lett. 19, 171–174 (1992).
[CrossRef]

1991

1989

R. T. Menzies, G. M. Ancellet, D. M. Tratt, M. G. Wurtele, J. C. Wright, W. Pi, “Altitude and seasonal characteristics of aerosol backscatter at thermal infrared wavelengths using lidar observations from coastal California,” J. Geophys. Res. 94, 9897–9908 (1989).
[CrossRef]

D. A. Haner, R. T. Menzies, “Reflectance characteristics of reference materials used in lidar hard target calibration,” Appl. Opt. 28, 857–864 (1989).
[CrossRef] [PubMed]

1988

1986

M. J. Post, “Atmospheric purging of El Chichón debris,” J. Geophys. Res. 91, 5222–5228 (1986).
[CrossRef]

1985

1984

1983

1982

Ancellet, G. M.

R. T. Menzies, G. M. Ancellet, D. M. Tratt, M. G. Wurtele, J. C. Wright, W. Pi, “Altitude and seasonal characteristics of aerosol backscatter at thermal infrared wavelengths using lidar observations from coastal California,” J. Geophys. Res. 94, 9897–9908 (1989).
[CrossRef]

G. M. Ancellet, R. T. Menzies, D. M. Tratt, “Atmospheric backscatter vertical profiles at 9.2 and 10.6 μm: a comparative study,” Appl. Opt. 27, 4907–4912 (1988).
[CrossRef] [PubMed]

Baker, W.

J. W. Bilbro, R. Jayroe, W. Baker, “Status of the Laser Atmospheric Wind Sounder,” in Coherent Laser Radar: Technology and Applications, Vol. 12 of 1991 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1991), pp. 238–241.

Bilbro, J. W.

J. W. Bilbro, R. Jayroe, W. Baker, “Status of the Laser Atmospheric Wind Sounder,” in Coherent Laser Radar: Technology and Applications, Vol. 12 of 1991 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1991), pp. 238–241.

Bowles, R. L.

Brothers, A. M.

R. T. Menzies, D. M. Tratt, A. M. Brothers, S. H. Dermenjian, C. Esproles, D. A. Haner, M. S. Shumate, “Design and performance measurements of an airborne aerosol backscatter lidar,” in Laser Radar V, R. J. Becherer, ed., Proc. Soc. Photo-Opt. Instrum. Eng. 1222, 112–117 (1990).

Cupp, R. E.

Deepak, A.

DeFoor, T. E.

E. Robinson, T. E. DeFoor, “Stratospheric aerosol conditions over Mauna Loa during recent quiescent volcanic periods,” in Aerosols and Climate, P. V. Hobbs, M. P. McCormick, eds. (Deepak, Hampton, Va., 1988), pp. 325–334.

Dermenjian, S. H.

R. T. Menzies, D. M. Tratt, A. M. Brothers, S. H. Dermenjian, C. Esproles, D. A. Haner, M. S. Shumate, “Design and performance measurements of an airborne aerosol backscatter lidar,” in Laser Radar V, R. J. Becherer, ed., Proc. Soc. Photo-Opt. Instrum. Eng. 1222, 112–117 (1990).

Esproles, C.

R. T. Menzies, D. M. Tratt, A. M. Brothers, S. H. Dermenjian, C. Esproles, D. A. Haner, M. S. Shumate, “Design and performance measurements of an airborne aerosol backscatter lidar,” in Laser Radar V, R. J. Becherer, ed., Proc. Soc. Photo-Opt. Instrum. Eng. 1222, 112–117 (1990).

Farrukh, U. O.

Flamant, P. H.

Froidevaux, L.

W. G. Read, L. Froidevaux, J. W. Waters, “UARS MLS Measurements of SO2 and O3 in the plume of Mount Pinatubo volcano,” paper V22E-4 presented at the Fall Meeting of the American Geophysical Union, 7–11 December 1992; Eos Trans. AGU 73, 625 (1992).

Hale, C. P.

Hall, F. F.

Haner, D. A.

D. A. Haner, R. T. Menzies, “Reflectance characteristics of reference materials used in lidar hard target calibration,” Appl. Opt. 28, 857–864 (1989).
[CrossRef] [PubMed]

R. T. Menzies, M. J. Kavaya, P. H. Flamant, D. A. Haner, “Atmospheric aerosol backscatter measurements using a tunable coherent CO2 lidar,” Appl. Opt. 23, 2510–2517 (1984).
[CrossRef] [PubMed]

R. T. Menzies, D. M. Tratt, A. M. Brothers, S. H. Dermenjian, C. Esproles, D. A. Haner, M. S. Shumate, “Design and performance measurements of an airborne aerosol backscatter lidar,” in Laser Radar V, R. J. Becherer, ed., Proc. Soc. Photo-Opt. Instrum. Eng. 1222, 112–117 (1990).

Henderson, S. W.

Huffaker, A. V.

Huffaker, R. M.

Jayroe, R.

J. W. Bilbro, R. Jayroe, W. Baker, “Status of the Laser Atmospheric Wind Sounder,” in Coherent Laser Radar: Technology and Applications, Vol. 12 of 1991 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1991), pp. 238–241.

Jones, W. D.

Kavaya, M. J.

Kent, G. S.

Lawrence, T. R.

Magee, J. R.

Menzies, R. T.

R. T. Menzies, G. M. Ancellet, D. M. Tratt, M. G. Wurtele, J. C. Wright, W. Pi, “Altitude and seasonal characteristics of aerosol backscatter at thermal infrared wavelengths using lidar observations from coastal California,” J. Geophys. Res. 94, 9897–9908 (1989).
[CrossRef]

D. A. Haner, R. T. Menzies, “Reflectance characteristics of reference materials used in lidar hard target calibration,” Appl. Opt. 28, 857–864 (1989).
[CrossRef] [PubMed]

G. M. Ancellet, R. T. Menzies, D. M. Tratt, “Atmospheric backscatter vertical profiles at 9.2 and 10.6 μm: a comparative study,” Appl. Opt. 27, 4907–4912 (1988).
[CrossRef] [PubMed]

M. J. Kavaya, R. T. Menzies, “Lidar aerosol backscatter measurements: systematic, modeling, and calibration error considerations,” Appl. Opt. 24, 3444–3453 (1985).
[CrossRef] [PubMed]

R. T. Menzies, M. J. Kavaya, P. H. Flamant, D. A. Haner, “Atmospheric aerosol backscatter measurements using a tunable coherent CO2 lidar,” Appl. Opt. 23, 2510–2517 (1984).
[CrossRef] [PubMed]

R. T. Menzies, M. J. Post, “GLOBE backscatter: climatologies and mission results,” in Laser Radar VI, R. J. Becherer, ed., Proc. Soc. Photo-Opt. Instrum. Eng. 1416, 139–146 (1991).

R. T. Menzies, D. M. Tratt, “Aerosol and cloud observations with a CO2 backscatter lidar on the NASA DC-8 GLOBE Pacific missions,” in Proceedings of the Seventh Symposium on Meteorological Observations and Instrumentation: Laser Atmospheric Studies, New Orleans, La. 1991, ed. (American Meteorological Society, Boston, Mass., 1991), pp. J265–J267.

R. T. Menzies, D. M. Tratt, A. M. Brothers, S. H. Dermenjian, C. Esproles, D. A. Haner, M. S. Shumate, “Design and performance measurements of an airborne aerosol backscatter lidar,” in Laser Radar V, R. J. Becherer, ed., Proc. Soc. Photo-Opt. Instrum. Eng. 1222, 112–117 (1990).

Osborn, M. T.

D. M. Winker, M. T. Osborn, “Preliminary analysis of observations of the Pinatubo volcanic plume with a polarization-sensitive lidar,” Geophys. Res. Lett. 19, 171–174 (1992).
[CrossRef]

Pi, W.

R. T. Menzies, G. M. Ancellet, D. M. Tratt, M. G. Wurtele, J. C. Wright, W. Pi, “Altitude and seasonal characteristics of aerosol backscatter at thermal infrared wavelengths using lidar observations from coastal California,” J. Geophys. Res. 94, 9897–9908 (1989).
[CrossRef]

Post, M. J.

M. J. Post, R. E. Cupp, “CO2 lidar backscatter profiles over Hawaii during fall 1988,” Appl. Opt. 31, 4590–4599 (1992).
[CrossRef] [PubMed]

M. J. Post, “Atmospheric purging of El Chichón debris,” J. Geophys. Res. 91, 5222–5228 (1986).
[CrossRef]

M. J. Post, “Aerosol backscattering profiles at CO2 wavelengths: the NOAA data base,” Appl. Opt. 23, 2507–2509 (1984).
[CrossRef] [PubMed]

M. J. Post, F. F. Hall, R. A. Richter, T. R. Lawrence, “Aerosol backscattering profiles at λ = 10.6 μm,” Appl. Opt. 21, 2442–2446 (1982).
[CrossRef] [PubMed]

R. T. Menzies, M. J. Post, “GLOBE backscatter: climatologies and mission results,” in Laser Radar VI, R. J. Becherer, ed., Proc. Soc. Photo-Opt. Instrum. Eng. 1416, 139–146 (1991).

M. J. Post, “Aerosol backscatter profiles at 10.59 and 9.25 micrometers near Mauna Loa, Hawaii, 1988,” in 5th Conference on Coherent Laser Radar: Technology and Applications, J. W. Bilbro, C. Werner, eds., Proc. Soc. Photo-Opt. Instrum. Eng. 1181, 260–262 (1989).

Read, W. G.

W. G. Read, L. Froidevaux, J. W. Waters, “UARS MLS Measurements of SO2 and O3 in the plume of Mount Pinatubo volcano,” paper V22E-4 presented at the Fall Meeting of the American Geophysical Union, 7–11 December 1992; Eos Trans. AGU 73, 625 (1992).

Richter, R. A.

Robinson, E.

E. Robinson, T. E. DeFoor, “Stratospheric aerosol conditions over Mauna Loa during recent quiescent volcanic periods,” in Aerosols and Climate, P. V. Hobbs, M. P. McCormick, eds. (Deepak, Hampton, Va., 1988), pp. 325–334.

Rothermel, J.

Shumate, M. S.

R. T. Menzies, D. M. Tratt, A. M. Brothers, S. H. Dermenjian, C. Esproles, D. A. Haner, M. S. Shumate, “Design and performance measurements of an airborne aerosol backscatter lidar,” in Laser Radar V, R. J. Becherer, ed., Proc. Soc. Photo-Opt. Instrum. Eng. 1222, 112–117 (1990).

Targ, R.

Tratt, D. M.

R. T. Menzies, G. M. Ancellet, D. M. Tratt, M. G. Wurtele, J. C. Wright, W. Pi, “Altitude and seasonal characteristics of aerosol backscatter at thermal infrared wavelengths using lidar observations from coastal California,” J. Geophys. Res. 94, 9897–9908 (1989).
[CrossRef]

G. M. Ancellet, R. T. Menzies, D. M. Tratt, “Atmospheric backscatter vertical profiles at 9.2 and 10.6 μm: a comparative study,” Appl. Opt. 27, 4907–4912 (1988).
[CrossRef] [PubMed]

R. T. Menzies, D. M. Tratt, A. M. Brothers, S. H. Dermenjian, C. Esproles, D. A. Haner, M. S. Shumate, “Design and performance measurements of an airborne aerosol backscatter lidar,” in Laser Radar V, R. J. Becherer, ed., Proc. Soc. Photo-Opt. Instrum. Eng. 1222, 112–117 (1990).

R. T. Menzies, D. M. Tratt, “Aerosol and cloud observations with a CO2 backscatter lidar on the NASA DC-8 GLOBE Pacific missions,” in Proceedings of the Seventh Symposium on Meteorological Observations and Instrumentation: Laser Atmospheric Studies, New Orleans, La. 1991, ed. (American Meteorological Society, Boston, Mass., 1991), pp. J265–J267.

Waters, J. W.

W. G. Read, L. Froidevaux, J. W. Waters, “UARS MLS Measurements of SO2 and O3 in the plume of Mount Pinatubo volcano,” paper V22E-4 presented at the Fall Meeting of the American Geophysical Union, 7–11 December 1992; Eos Trans. AGU 73, 625 (1992).

Winker, D. M.

D. M. Winker, M. T. Osborn, “Preliminary analysis of observations of the Pinatubo volcanic plume with a polarization-sensitive lidar,” Geophys. Res. Lett. 19, 171–174 (1992).
[CrossRef]

Wright, J. C.

R. T. Menzies, G. M. Ancellet, D. M. Tratt, M. G. Wurtele, J. C. Wright, W. Pi, “Altitude and seasonal characteristics of aerosol backscatter at thermal infrared wavelengths using lidar observations from coastal California,” J. Geophys. Res. 94, 9897–9908 (1989).
[CrossRef]

Wurtele, M. G.

R. T. Menzies, G. M. Ancellet, D. M. Tratt, M. G. Wurtele, J. C. Wright, W. Pi, “Altitude and seasonal characteristics of aerosol backscatter at thermal infrared wavelengths using lidar observations from coastal California,” J. Geophys. Res. 94, 9897–9908 (1989).
[CrossRef]

Yue, G. K.

Appl. Opt.

G. M. Ancellet, R. T. Menzies, D. M. Tratt, “Atmospheric backscatter vertical profiles at 9.2 and 10.6 μm: a comparative study,” Appl. Opt. 27, 4907–4912 (1988).
[CrossRef] [PubMed]

M. J. Post, F. F. Hall, R. A. Richter, T. R. Lawrence, “Aerosol backscattering profiles at λ = 10.6 μm,” Appl. Opt. 21, 2442–2446 (1982).
[CrossRef] [PubMed]

M. J. Post, “Aerosol backscattering profiles at CO2 wavelengths: the NOAA data base,” Appl. Opt. 23, 2507–2509 (1984).
[CrossRef] [PubMed]

J. Rothermel, W. D. Jones, “Ground-based measurements of atmospheric backscatter and absorption using coherent CO2 lidar,” Appl. Opt. 24, 3487–3496 (1985).
[CrossRef] [PubMed]

G. K. Yue, G. S. Kent, U. O. Farrukh, A. Deepak, “Modeling atmospheric aerosol backscatter at CO2 wavelengths. 3: Effects of changes in wavelength and ambient conditions,” Appl. Opt. 22, 1671–1678 (1983).
[CrossRef] [PubMed]

R. T. Menzies, M. J. Kavaya, P. H. Flamant, D. A. Haner, “Atmospheric aerosol backscatter measurements using a tunable coherent CO2 lidar,” Appl. Opt. 23, 2510–2517 (1984).
[CrossRef] [PubMed]

R. Targ, M. J. Kavaya, R. M. Huffaker, R. L. Bowles, “Coherent lidar airborne windshear sensor: performance evaluation,” Appl. Opt. 30, 2013–2026 (1991).
[CrossRef] [PubMed]

M. J. Post, R. E. Cupp, “CO2 lidar backscatter profiles over Hawaii during fall 1988,” Appl. Opt. 31, 4590–4599 (1992).
[CrossRef] [PubMed]

D. A. Haner, R. T. Menzies, “Reflectance characteristics of reference materials used in lidar hard target calibration,” Appl. Opt. 28, 857–864 (1989).
[CrossRef] [PubMed]

M. J. Kavaya, R. T. Menzies, “Lidar aerosol backscatter measurements: systematic, modeling, and calibration error considerations,” Appl. Opt. 24, 3444–3453 (1985).
[CrossRef] [PubMed]

Geophys. Res. Lett.

D. M. Winker, M. T. Osborn, “Preliminary analysis of observations of the Pinatubo volcanic plume with a polarization-sensitive lidar,” Geophys. Res. Lett. 19, 171–174 (1992).
[CrossRef]

J. Geophys. Res.

R. T. Menzies, G. M. Ancellet, D. M. Tratt, M. G. Wurtele, J. C. Wright, W. Pi, “Altitude and seasonal characteristics of aerosol backscatter at thermal infrared wavelengths using lidar observations from coastal California,” J. Geophys. Res. 94, 9897–9908 (1989).
[CrossRef]

G. S. Kent, G. K. Yue, “The modeling of CO2 lidar backscatter from stratospheric aerosols,” J. Geophys. Res. 96, 5279–5292 (1991).
[CrossRef]

M. J. Post, “Atmospheric purging of El Chichón debris,” J. Geophys. Res. 91, 5222–5228 (1986).
[CrossRef]

Opt. Lett.

Other

LAWS Instrument Panel, Earth Observing System (National Aeronautics and Space Administration, Washington, D.C.), Vol. IIg.

J. W. Bilbro, R. Jayroe, W. Baker, “Status of the Laser Atmospheric Wind Sounder,” in Coherent Laser Radar: Technology and Applications, Vol. 12 of 1991 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1991), pp. 238–241.

M. J. Post, “Aerosol backscatter profiles at 10.59 and 9.25 micrometers near Mauna Loa, Hawaii, 1988,” in 5th Conference on Coherent Laser Radar: Technology and Applications, J. W. Bilbro, C. Werner, eds., Proc. Soc. Photo-Opt. Instrum. Eng. 1181, 260–262 (1989).

W. G. Read, L. Froidevaux, J. W. Waters, “UARS MLS Measurements of SO2 and O3 in the plume of Mount Pinatubo volcano,” paper V22E-4 presented at the Fall Meeting of the American Geophysical Union, 7–11 December 1992; Eos Trans. AGU 73, 625 (1992).

R. T. Menzies, D. M. Tratt, A. M. Brothers, S. H. Dermenjian, C. Esproles, D. A. Haner, M. S. Shumate, “Design and performance measurements of an airborne aerosol backscatter lidar,” in Laser Radar V, R. J. Becherer, ed., Proc. Soc. Photo-Opt. Instrum. Eng. 1222, 112–117 (1990).

R. T. Menzies, D. M. Tratt, “Aerosol and cloud observations with a CO2 backscatter lidar on the NASA DC-8 GLOBE Pacific missions,” in Proceedings of the Seventh Symposium on Meteorological Observations and Instrumentation: Laser Atmospheric Studies, New Orleans, La. 1991, ed. (American Meteorological Society, Boston, Mass., 1991), pp. J265–J267.

E. Robinson, T. E. DeFoor, “Stratospheric aerosol conditions over Mauna Loa during recent quiescent volcanic periods,” in Aerosols and Climate, P. V. Hobbs, M. P. McCormick, eds. (Deepak, Hampton, Va., 1988), pp. 325–334.

R. T. Menzies, M. J. Post, “GLOBE backscatter: climatologies and mission results,” in Laser Radar VI, R. J. Becherer, ed., Proc. Soc. Photo-Opt. Instrum. Eng. 1416, 139–146 (1991).

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Figures (10)

Fig. 1
Fig. 1

Gaussian cumulative log-backscatter frequency at 8 km altitude, showing the effect of dropout compensation (steeper gradient data). Note the characteristic low-frequency distortion (downturn) of the probability distribution when dropout compensation is applied.

Fig. 2
Fig. 2

Dropout-compensated Gaussian cumulative probability distribution of aerosol backscatter coefficients at 5 km altitude for 9.25- and 10.6-μm lidar wavelengths.

Fig. 3
Fig. 3

Dropout-compensated Gaussian cumulative probability distribution of aerosol backscattor coefficients at 8 km altitude for 9.25- and 10.6-μm lidar wavelengths.

Fig. 4
Fig. 4

Dropout-compensated Gaussian cumulative probability distribution of aerosol backscatter coefficients at 12 km altitude for 9.25- and 10.6-μm lidar wavelengths.

Fig. 5
Fig. 5

Dropout-compensated Gaussian cumulative probability distribution of aerosol backscatter coefficients at 15 km altitude for 9.25- and 10.6-μm lidar wavelengths.

Fig. 6
Fig. 6

Geometric means of (a) 95 9.25-μm profiles and (b) 125 10.6-μm profiles. The solid curves are dropout-compensated means; the dotted curves are the uncompensated means. MSL, mean sea level.

Fig. 7
Fig. 7

Comparative geometric-mean aerosol backscatter profiles at 9.25 and 10.6-μm, based on measurements acquired during the interval from July 1984 to November 1992.

Fig. 8
Fig. 8

Atmospheric backscatter profiles above Pasadena taken during the year following the June 1991 Pinatubo eruption. (a) 9.25-μm profile acquired with the JPL ABL instrument (8.22.91, 23:06 UTC); (b) 10.6-μm profile acquired with the JPL ground-based lidar (6.9.92, 23:00 UTC); (c) 10.6-μm profile acquired with the JPL ground-based lidar (6.24.92, 23:00 UTC).

Fig. 9
Fig. 9

Mean aerosol backscatter in four altitude bands collated by year.

Fig. 10
Fig. 10

Geometric mean profile compiled from 10.6-μm data taken since July 1991, in the post-Pinatubo case (solid curve; 40 profiles) and for the prior period extending back to January 1988, in the pre-Pinatubo case (broken curve; 45 profiles).

Tables (1)

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Table 1 Best-Fit Geometric Mean Values of β m and σ at Selected Altitudes, Where σ Has Been Normalized to the Prevailing Value of β m

Equations (1)

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f ( ln β ) = [ ( 2 π ) 1 / 2 ln σ ] - 1 exp { - 0.5 [ ln ( β / β m ) / ln σ ] 2 } ,

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