Comparison of characteristics of the vertical structure of atmosphere's aerosol component in latitudinal belts of Saturn

1Ovsak, AS, 2Karimov, AM, 2Lysenko, PG
1Main Astronomical Observatory of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
2Fesenkov Astrophysical Institute, Almaty, Kazakhstan
Kinemat. fiz. nebesnyh tel (Online) 2018, 34(2):55-70
Start Page: Dynamics and Physics of Solar System Bodies
Language: Russian

With using of spectral values of the reflectivity of latitudinal belts of the Northern hemisphere of Saturn measured in 2015 in the methane absorption bands at 727 and 619 nm, the altitude dependences of the aerosol and gas scattering components of the effective optical depth were calculated. Zonal characteristics of the vertical structure of the cloud cover of Saturn are determined. A presence of an aerosol has been identified in all latitudinal belts. The relative concentration of aerosol particles decreases monotonically into the depth of atmospheric column, without attributes of significant condensation and rarefaction of clouds. The greatest amount of aerosol was determined for the latitude region of 49°N and the smallest quantity for 80°N. An altitude level have been identified at which may alter the size and / or the refractive index of aerosol particles. The atmospheric level with the maximum relative concentration of aerosol particles has not been determined, but the nature of obtained dependences indicates its probable location in the higher layers of the atmosphere of the giant planet.

Keywords: atmosphere, cloud cover, latitudinal belts, Saturn

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