Japan Geoscience Union Meeting 2016

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International Session (Oral)

Symbol P (Space and Planetary Sciences) » P-PS Planetary Sciences

[P-PS01] Outer Solar System Exploration Today, and Tomorrow

Sun. May 22, 2016 10:45 AM - 12:15 PM A02 (APA HOTEL&RESORT TOKYO BAY MAKUHARI)

Convener:*Jun Kimura(Earth-Life Science Institute, Tokyo Institute of Technology), Masaki Fujimoto(Institite of Space and Astronautical Science, Japan Aerospace Exploration Agency), Yasumasa Kasaba(Dep. Geophysics Graduate School of Science Tohoku University), Sho Sasaki(Department of Earth and Space Sciences, School of Science, Osaka University), Takayuki Tanigawa(School of Medicine, University of Occupational and Environmental Health), Yasuhito Sekine(Department of Earth and Planetary Science, University of Tokyo), Kunio Sayanagi(Atmospheric and Planetary Sciences Department, Hampton University), Steven Vance(Jet Propulsion Laboratory, Caltech), Chair:Jun Kimura(Earth-Life Science Institute, Tokyo Institute of Technology), Noriyuki Namiki(RISE Project, National Astronomical Observatory of Japan)

11:55 AM - 12:15 PM

[PPS01-11] Deep Plume Interaction with Gas Giant Weather Layers: Preparing for Juno and Cassini Observations

★Invited papers

*Morgan E O'Neill1, Yohai Kaspi1, Eli Galanti1 (1.Weizmann Institute of Science)

Keywords:Jupiter, Juno, Atmospheric Dynamics

The weather layers of Jupiter and Saturn receive both solar radiation and heat from the deep interior. Currently, most numerical models fall into two broad categories: Deep, dry and convecting interior models that lack a stably stratified troposphere above, or thin shells that represent only a troposphere, with parameterized heating from the lower boundary. Here we present the results from a new coupled model that allows resolved deep convective plumes to interact with a stable "weather layer". We demonstrate the relative importance of a stable tropospheric lapse rate and the magnitude of bottom heating on the strength and depth of the jets. Studies of this kind will benefit understanding of Jupiter's dynamics, in particular the depth of the cloud-level jets, in advance of Juno's 2016 arrival. Moreover, the difference between Saturn and Jupiter is explored using a parameter sweep of tropospheric stability, which acts as a proxy for tropospheric water abundance.