Jupiter's Anticyclone BA: Dynamics and Color Change

Details Jupiter's Anticyclone BA: Dynamics and Color Change Jupiter's Anticyclone BA: Dynamics and Color Change

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008dps....40.4105h&link_type=abstract

American Astronomical Society, DPS meeting #40, #41.05; Bulletin of the American Astronomical Society, Vol. 40, p.470

Astronomy and Astrophysics

Astronomy

Scientific paper

The large anticyclone BA is the second largest in Jupiter and formed in 1998-2000 from the successive mergers of three large White Ovals present in the atmosphere of Jupiter since the 1940s. As its predecessors, BA was white until it experienced a reddening in late 2005 that made it more similar to the GRS. Here we present a detailed study of the oval history and its properties in different areas: We follow the global behavior of this oval since its formation using the large database of Jupiter observations in the visible range coming from the International Outer Planets Watch (IOPW) - PVOL data system (http://www.pvol.ehu.es/). We present detailed measurements of its internal flow field using images from the Cassini flyby of Jupiter, Hubble Space Telescope and New Horizons flyby that consistently show a very similar wind field before and after the color change. We characterize the color change using HST images that point to a change in the optical properties of the particles located at the upper troposphere and not to changes in the oval vertical extent or in its total optical thickness. We will also present models and simulations of its internal structure that reproduce the characteristics of the vortex and use the simulations to study the interaction with the zonal jets and the outcome of the interaction with the GRS. We finally explore the different mechanisms that could have acted to produce the color change observed in the ring area within BA.
Acknowledgements:
This work has been funded by Spanish MEC AYA2006-07735 with FEDER support and Grupos GV IT464-07. It made use of computing facilities at CESCA in Barcelona with the help of MEC.

Affiliated with

Also associated with

No associations

Rating

Jupiter's Anticyclone BA: Dynamics and Color Change does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Jupiter's Anticyclone BA: Dynamics and Color Change, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Jupiter's Anticyclone BA: Dynamics and Color Change will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1438531