Method for acquiring complex refractive index of urban aerosol on basis of various ground-based remote sensing technologies

Method for acquiring complex refractive index of urban aerosol on basis of various ground-based remote sensing technologies

  • CN 103,175,759 A
  • Filed: 02/25/2013
  • Published: 06/26/2013
  • Est. Priority Date: 02/25/2013
  • Status: Active Application
First Claim
Patent Images

1. method of obtaining the aerosols from major cities complex refractive index based on multiple Ground-based remote sensing technology, it is characterized in that:

  • at first utilize the Raman lidar echoed signal, through obtaining Aerosol Extinction and scattering extinction ratio after the algorithm inverting, and the extinction coefficient in certain path is carried out integration, obtain the aerosol optical depth on this path;

    Then according to the Monte Carlo principle, the aerosol optical depth that the atmosphere that utilizes heliograph to obtain whole layer aerosol optical depth and laser radar obtain carries out iteration to be compared, and constantly revises extinction coefficient and scattering extinction ratio;

    Obtain the aerosol particle spectrum by the grain spectrometer and distribute, utilize at last known aerosol scattering extinction ratio and aerosol particle spectrum to distribute, according to the Mie scattering model, obtain the aerosols from major cities complex refractive index, the specific algorithm step is;

    (1) the echo equation of single wavelength nitrogen Raman scattering laser radar is to be expressed as;

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×