Joule Heating of the South Polar Terrain on Enceladus

Presenter: Kevin Hand, NASA Jet Propulsion Laboratory
When: November 10, 2009 2:30PM PST

The plumes and observed heat flux in the South Polar Terrain of Enceladus remain a considerable mystery. We report that Joule heating in Enceladus – resulting from the interaction of Enceladus with Saturn’s magnetic field – may account for several, to a few tens of megawatts of power across the observed “tiger stripe” fractures. Electric currents passing through subsurface channels of low salinity and just a few kilometres in depth could supply a source of power to the South Polar Terrain, providing a small but previously unaccounted for contribution to the observed heat flux and plume activity.

To join using a videoconferencing system:

Please RSVP to Mike Toillion (mike.toillion@nasa.gov) if you will be joining by Polycom.

To view the slides, connect to http://connect.arc.nasa.gov/uwseminar/


To join using a web browser:

The slides and audio/video for this meeting will be presented using Adobe Connect. To join the meeting, connect to:

http://connect.arc.nasa.gov/uwseminar/

If you are having problems connecting, you can try joining http://connect.arc.nasa.gov/uwseminar/?launcher=false, or rebooting your computer, or try joining from another network.

Discussion

blog comments powered by Disqus

University of Washington Seminars

  • The University of Washington seminar series is hosted by the NAI Virtual Planetary Lab (VPL) team live from the University of Washington campus in Seattle.
  • Subscribe to this series