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    Lidar Measurements of Stratospheric Ozone, Temperature and Aerosol During 1992 UARS Correlative Measurement Campaign (1992)
    In:  CASI
    Details
    Publication Date: 2014-09-24
    Description: Measurements of stratospheric ozone, temperature, and aerosols were made by the NASA/GSFC mobile stratospheric lidar during the UARS (Upper Atmospheric Research Satellite) Correlative Measurement Campaign at the JPL-Table Mountain Facility in Feb. and Mar. 1992. Due to the presence of substantial amounts of residual volcanic aerosol from the eruption of Mt. Pinatubo, the GSFC lidar system was modified for an accurate measurement of ozone concentration in the stratosphere. While designed primarily for the measurement of stratospheric ozone, this lidar system was also used to measure middle atmosphere temperature and density from 30 to 65 km and stratospheric aerosol from 15 to 35 km. In the following sections, we will briefly describe and present some typical measurements made during this campaign. Stratospheric ozone, temperature, and aerosols profiles derived from data taken between 15 Feb. and 20 Mar., 1992 will be presented at the conference.
    Keywords: ENVIRONMENT POLLUTION
    Type: NASA. Langley Research Center, Sixteenth International Laser Radar Conference, Part 1; p 103-106
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    A New Raman DIAL Technique for Measuring Stratospheric Ozone in the Presence of Volcanic Aerosols (1992)
    In:  CASI
    Details
    Publication Date: 2014-09-24
    Description: This paper describes a new lidar scheme to measure stratospheric ozone in the presence of heavy volcanic aerosol loading. The eruptions of the Philippine volcano Pinatubo during June 1991 ejected large amounts of sulfur dioxide into the atmosphere to altitudes of at least 30 km. The resulting aerosols have severely affected the measurements of stratospheric ozone when using traditional Rayleigh differential absorption lidar (DIAL) technique, in which the scattering mechanism is almost entirely Rayleigh and which assumes a small amount or no aerosols. In order to extract an ozone profile in the regions below about 30 km where the Rayleigh lidar returns are contaminated by aerosol scattering from Mt. Pinatubo cloud, we have used a Raman lidar technique, where the scattering mechanism depends solely on molecular nitrogen. In this scheme there is no aerosol scattering component to the backscattered lidar return. Using this technique in conjunction with the Rayleigh DIAL measurement, the GSFC stratospheric ozone lidar has measured ozone profiles between 15 and 50 km during the recently held UARS correlative measurement campaign (February-March 1992) at JPL's Table Mountain Facility in California.
    Keywords: ENVIRONMENT POLLUTION
    Type: NASA. Langley Research Center, Sixteenth International Laser Radar Conference, Part 1; p 31-33
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Differential absorption lidar (DIAL) measurements of stratospheric ozone (1986)
    In:  CASI
    Details
    Publication Date: 2016-06-11
    Keywords: ENVIRONMENT POLLUTION
    Type: Network for the Detection of Stratospheric Change; 2 p; NASA-TM-104980
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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