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  Submillimeter Wave Instrument radiometry of the Jovian icy moons: Numerical simulation of the microwave thermal radiative transfer and Bayesian retrieval of the physical properties

Ilyushin, Y. A., & Hartogh, P. (2020). Submillimeter Wave Instrument radiometry of the Jovian icy moons: Numerical simulation of the microwave thermal radiative transfer and Bayesian retrieval of the physical properties. Astronomy and Astrophysics, 644: A24. doi:10.1051/0004-6361/201937220.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0007-7A3E-C Version Permalink: http://hdl.handle.net/21.11116/0000-0007-7A3F-B
Genre: Journal Article

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 Creators:
Ilyushin, Y. A.1, Author
Hartogh, Paul1, Author              
Affiliations:
1Department Planets and Comets, Max Planck Institute for Solar System Research, Max Planck Society, ou_1832288              

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Free keywords: planets and satellites: surfaces / radiative transfer / polarization / methods: numerical
 MPIS_PROJECTS: JUICE: SWI
 Abstract: Context. We address the issue of remote sensing of the surfaces of Galilean icy moons. We investigate the prospects for retrieval of the physical parameters of the surface of the Jovian icy moons from submillimeter wave radiometry data. Aims. We show that the model parameters could not be completely retrieved from the polarized radiometry data, but some of their combinations can be effectively constrained. Methods. The polarized radiative transfer in lossy porous ice was numerically simulated. A Bayesian maximum likelihood retrieval algorithm was developed and tested on the simulated data in a wide range of variation of the model parameters. The uncertainty of the retrievals was evaluated with the Cramer-Rao bounds. We established the combinations of model parameters that can be effectively constrained from the measured data. Results. We reveal that the effective scatterer size can be reliably constrained for a range of values where the scattering asymmetry parameter uniquely depends on the wave parameter, and for relatively high values of the single scattering albedo, for which the scattering in the medium is significant. Similarly, the domains of reliable retrieval of the single scattering albedo and thermal skin depth are established.

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Language(s): eng - English
 Dates: 2020
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1051/0004-6361/201937220
 Degree: -

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Title: Astronomy and Astrophysics
  Other : Astron. Astrophys.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Les Ulis Cedex A France : EDP Sciences
Pages: - Volume / Issue: 644 Sequence Number: A24 Start / End Page: - Identifier: ISSN: 1432-0746
ISSN: 0004-6361
CoNE: https://pure.mpg.de/cone/journals/resource/954922828219_1