Changing Seasons on Saturn: If Winter's Here, Can Spring be Far Behind?

Details Changing Seasons on Saturn: If Winter's Here, Can Spring be Far Behind? Changing Seasons on Saturn: If Winter's Here, Can Spring be Far Behind?

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009dps....41.2805y&link_type=abstract

American Astronomical Society, DPS meeting #41, #28.05

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Scientific paper

Ground-based near- and mid-infrared observations of Saturn from 1995 - 2009, covering half a Saturnian year, provide a rich data set to model seasonal changes in both Saturn's atmosphere and its rings as a function of solar elevation. We acquired near-infrared data from NASA/Infrared Telescope Facility (IRTF); and mid-infrared data from NASA/IRTF and NAOJ/Subaru Facility. Our data set covers the period from autumnal equinox (1995) to the upcoming vernal equinox (2009); and provides a bridge between Voyager encounters and Cassini prime mission, with temporal and spatial context for spacecraft observations. We shall present results illustrating: (1) changes in thermal fields on the planet; (2) evolution/distribution of various chemical species; (3) development of clouds and other discrete features; (4) thermal properties of the main rings and (5) models for these trends.

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