High-Resolution Simulations of the Great Red Spot Vorticity and Temperature Fields

Details High-Resolution Simulations of the Great Red Spot Vorticity and Temperature Fields High-Resolution Simulations of the Great Red Spot Vorticity and Temperature Fields

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010dps....42.1105m&link_type=abstract

American Astronomical Society, DPS meeting #42, #11.05; Bulletin of the American Astronomical Society, Vol. 42, p.1018

Statistics

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Scientific paper

The Great Red Spot (GRS) is the largest and longest-lived vortex on Jupiter; it is a centuries-old anticyclone with a current semi-major axis of a 9,000 km. High-resolution observations taken with spacecraft and ground-based observatories have revealed many fine details in its vorticity and temperature structure (Choi et al. 2007, Fletcher et al. 2010). We have performed numerical simulations of the GRS using the EPIC model to explore the space of parameters for atmospheric conditions that would best reproduce the observed details of both the vorticity and temperature fields. When we take the model to sufficiently high resolution, the correlations between model vorticity and observed cloud morphology are nearly indistinguishable, with the exception of the obviously convective activity in the northwest quadrant adjacent and exterior to the GRS. The observed north-south tilt in the temperature field is sensitive to the vertical structure of the GRS with respect to that of the zonal winds. We also explore how the merger of smaller vortices into the GRS affects its vorticity and temperature fields. Computational resources were provided by the New Mexico Computing Applications Center and New Mexico Institute of Mining and Technology.This work was supported by PATM grant numbers NNX08AE91G and NNX08AE64G.

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