Journal article

The impact of aerosols on polarized sky radiance: model development, validation, and applications

Emde C, Buras R, Mayer B, Blumthaler M ...see all

Atmos. Chem. Phys. Atmospheric Chemistry and Physics, vol. 10, issue 1997 (2010) pp. 383-396

  • 44


    Mendeley users who have this article in their library.
  • 69


    Citations of this article.
Sign in to save reference


Although solar radiation initially is unpolarized when entering the Earth's atmosphere, it is polarized by scat-tering processes with molecules, water droplets, ice crys-tals, and aerosols. Hence, measurements of the polariza-tion state of radiation can be used to improve remote sens-ing of aerosols and clouds. The analysis of polarized ra-diance measurements requires an accurate radiative trans-fer model. To this end, a new efficient and flexible three-dimensional Monte Carlo code to compute polarized radi-ances has been developed and implemented into MYSTIC (Monte Carlo code for the phYSically correct Tracing of pho-tons In Cloudy atmospheres). The code has been extensively validated against published benchmark results. The polarized downwelling radiation field is calculated for various aerosol types showing the high sensitivity of polarized ultraviolet radiances to the particle microphysics. Model simulations are compared to ground based measurements and found to be qualitatively in good agreement. Quantitative differences can be attributed to the assumed aerosol models based on the OPAC aerosol database, which does not include exactly the types of aerosols that have been observed. This comparison to the measurements shows that there is a high potential to retrieve information about the aerosol type from polarized radiance measurements.

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Get full text


  • C Emde

  • R Buras

  • B Mayer

  • M Blumthaler

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free