# CIG March Webinar: March 10 @ 2P PT - Orvedahl. \*\*\* NEXT WEEK **URL:** \ **Category:** Announcements\ **Created:** [March 4, 2022, 6:24pm UTC](https://community.geodynamics.org/t/cig-march-webinar-march-10-2p-pt-orvedahl-next-week/2292 "2022-03-04T18:24:01Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![ljhwang](https://yyz2.discourse-cdn.com/flex036/user_avatar/community.geodynamics.org/ljhwang/32/8_2.png) [@ljhwang](https://community.geodynamics.org/u/ljhwang)\ **Post date:** [March 4, 2022, 6:24pm UTC](https://community.geodynamics.org/t/cig-march-webinar-march-10-2p-pt-orvedahl-next-week/2292/1 "2022-03-04T18:24:01Z")
### Dynamo Simulations of Planetary Cores Ryan Orvedahl Thursday 10 March, 2022, 2:00 pm - 3:00 pm PST [REGISTER](https://ucdavis.zoom.us/meeting/register/tJwtduCvpz8vE9d1Ah88_3iCPQuBCV4jJqAo) The majority of solar system planets possess global, or large-scale, magnetic fields. These magnetic fields are all thought to be generated by the dynamo mechanism, whereby kinetic energy associated with a convectively stirred plasma is converted into electromagnetic energy. Most planets have a large-scale magnetic field that is aligned with its rotation axis and often are characterized by a relatively strong dipolar component. In this work, large-scale magnetic field properties are investigated using rapidly rotating numerical simulations in a sphere. The large-scale magnetic field saturates as the intensity of convective motions is increased. The saturation is explored over a wide range of system parameters and is found to be a robust feature of rapidly rotating dynamo simulations. These results are described using a semi-magnetostrophic force balance, where the Lorentz force enters the leading-order mean force balance in only a single component direction. These simulations are generated using the Rayleigh pseudo-spectral code and current software development plans for its improvement will also be discussed.