Other
Scientific paper
Aug 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006iaujd..10e..38k&link_type=abstract
Progress in Planetary Exploration Missions, 26th meeting of the IAU, Joint Discussion 10, 21-22 August 2006, Prague, Czech Repub
Other
Scientific paper
In recent years there has been increasing amount of interest in the influence of Raman scattering on the spectra of planetary atmospheres. Raman scattering is the incoherent non-resonance scattering of photons by molecules. If an incident solar photon of frequency "ν_0" is scattered, it will emerge at frequency "ν_0 + δν " and "ν_0 - δν", where "δν" is the frequency of the Raman transition of the molecule. Raman scattering is a second-order effect in the overall atmospheric radiative transfer problem. It does have several important observable effects on the visible and ultraviolet spectrum of planet, which may provide new information on the composition and structure of these atmospheres. In 1997 Morozhenko demonstrated that the observed geometric albedo for wavelength corresponding to Fraunhofer lines and their "ghosts" was able to be used for estimating values of the ratios of the aerosol and gas optical thicknesses ("τ_a/τ_R") as well as the ratios of the absorbing and scattering components in the aerosol optical thicknesses ("τ_κ/τ_R"). But in this method was considered the model of isothermal atmosphere of giant planets. This method was taken as a basis. We developed a method of the optical parameters estimation of the nonisothermal giant planet atmosphere by using detailed intensity data of Raman scattering. In such a way using observational data of Uranus atmosphere the spectral mean of ratios of the optical thicknesses components: aerosol and gas components ("τ_a/τ_R"), absorbing and scattering components ("τ_κ/τ_R"), and also a single scattering albedo ω of aerosol component were obtained. Applied this calculation code to observational data in 1993 and 1995, observed by Karkoshka, we obtained different values. The average value of ratio τ_&?/τ_R is 0.96 using observation from 1993 in the spectral region of 350-450nm, and value of ratio τ_?/τ_R is 0.82 using observation from 1995 in the same spectral region. In the presence of Raman scattering, albedos are not physical properties of the planets since the albedo is quite dependent on the shape of the solar spectrum. So we obtained a "physical" albedo of Uranus, its albedo corrected for Raman scattering.
No associations
LandOfFree
The possible reason of the optical parameters changing in the Uranus's atmosphere. does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The possible reason of the optical parameters changing in the Uranus's atmosphere., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The possible reason of the optical parameters changing in the Uranus's atmosphere. will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1785079