Jupiter's brightness distribution: periodicities and power s

Details Jupiter's brightness distribution: periodicities and power s Jupiter's brightness distribution: periodicities and power s

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008epsc.conf..648b&link_type=abstract

European Planetary Science Congress 2008, Proceedings of the conference held 21-25 September, 2008 in Münster, Germany. Online a

Physics

Scientific paper

The main goal of this work is to study the brightness field in Jupiter in order to characterize its periodicities and power spectral distribution, and relate them with the dynamics and turbulence of the atmosphere. To do so we have used two sets of images obtained in the near-infrared (~950 nm, NIR), blue (430 nm, BL) and ultraviolet (~260, UV). The first set contains images from the Hubble Space Telescope's (HST) 1995 archive and the second one consists of a selection of images from Cassini ISS (2000). All images have been carefully selected and corrected from limb darkening in order to construct a smooth planisphere for each year and wavelength for the entire planet. The planispheres extend from -60º to +60º in latitude, so we can retrieve zonal reflectivity scans each 0.1º for nearly all the latitudes. The albedo scans have been analyzed by means of spatial periodograms and power spectra.

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