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  • 1
    ISSN: 1349-9432
    Keywords: high spectral resolution lidar ; Doppler shift ; iodine vapor filter ; aerosol scattering ; Rayleigh scattering ; wind velocity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We propose a high spectral resolution lidar system which is capable of measuring aerosol backscattering and line-of-sight wind velocity in the troposphere. An iodine vapor filter is used to separate the aerosol and Rayleigh scattering components as well as to discriminate the Doppler shift frequency. The performance of the lidar system is estimated with reasonable parameters. The error of horizontal wind velocity below an altitude of 6 km is less than 0.5 m/s, and accuracy of the aerosol backscattering coefficient is better than 40% below 10 km. This system is particularly suitable for the study of aerosol transportation in the troposphere.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Applied physics 32 (1983), S. 43-47 
    ISSN: 1432-0649
    Keywords: 33.20E ; 35.80
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A supersonic-free-jet infrared spectrometer has been constructed for investigation of molecular vibrational spectra at low rotational and vibrational temperatures. The sensitivity of measurement in a pulsed jet is increased by employing a phase-sensitive detection method synchronized with the pulse frequency. The performance of the spectrometer is examined for the absorption lines of the NH3 v 2 band. A rotational temperature as low as 16K is attained when seeded in He. Cold-jet spectra are demonstrated for thev 3 bands of PF5,34SF6, and182WF6.
    Type of Medium: Electronic Resource
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