Modeling a space weather event from the sun to earth: CME generation and interplanetary propagation

Details Modeling a space weather event from the sun to earth: CME generation and interplanetary propagation Modeling a space weather event from the sun to earth: CME generation and interplanetary propagation

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003eaeja.....6645m&link_type=abstract

EGS - AGU - EUG Joint Assembly, Abstracts from the meeting held in Nice, France, 6 - 11 April 2003, abstract #6645

Physics

Scientific paper

We present a three-dimensional (3D) numerical ideal magnetohydrodynamics (MHD) model describing the time-dependent expulsion of a CME from the solar corona propagating all the way to 1 A.U.. The simulations are performed using the BATS-R-US (Block Adaptive Tree Solarwind Roe Upwind Scheme) code. We begin by developing a global steady-state model of the corona that possesses high-latitude coronal holes and a helmet streamer structure with a current sheet at the equator. The Archimedian spiral topology of the interplanetary magnetic field is reproduced along with fast and slow speed solar wind. Within this model system, we drive a CME to erupt by the introduction of a Gibson-Low magnetic flux rope that is anchored at both ends in the photosphere and embedded in the helmet streamer in an initial state of force imbalance. The flux rope rapidly expands and is ejected from the corona with maximum speeds in excess of 1500 km/sec. Physics based AMR allows us to capture the structure of the CME focused on a particular Sun-Earth line with high spatial resolution given to the bow shock ahead of the flux rope as well as to the current sheet behind. We find our model CME plasma parameters at 1 AU to be geoeffective and use this as solar wind input for an Earth-Magnetospheric simulation in a companion paper.

Affiliated with

Also associated with

No associations

Rating

Modeling a space weather event from the sun to earth: CME generation and interplanetary propagation 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 Modeling a space weather event from the sun to earth: CME generation and interplanetary propagation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modeling a space weather event from the sun to earth: CME generation and interplanetary propagation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-843477