Principal components analysis of Jupiter VIMS spectra

Details Principal components analysis of Jupiter VIMS spectra Principal components analysis of Jupiter VIMS spectra

Jan 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004adspr..34.1640b&link_type=abstract

Advances in Space Research, Volume 34, Issue 8, p. 1640-1646.

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Scientific paper

During Cassini Jupiter flyby occurred in December 2000, Visual Infrared mapping spectrometer (VIMS) instrument took several image cubes of Jupiter at different phase angles and distances. We have analysed the spectral images acquired by the VIMS visual channel by means of a principal component analysis technique (PCA). The original data set consists of 96 spectral images in the 0.35 1.05 μm wavelength range. The product of the analysis are new PC bands, which contain all the spectral variance of the original data. These new components have been used to produce a map of Jupiter made of seven coherent spectral classes. The map confirms previously published work done on the Great Red Spot by using NIMS data. Some other new findings, presently under investigation, are presented.

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