Larger Scale 3D Magnetic Field Reconstructions
Presentation Type
Talk
Presenter Format
In Person Meeting Talk
Topic
Nightside Science
Start Date
11-5-2022 1:45 PM
Abstract
The 3D reconstruction that employs cubic terms can give exact solutions that are valid in the close vicinity (about twice the size) of the MMS tetrahedron. It suffers at larger scales due to overfitting of the terms. I present a new cubic solution that is much better at larger scales, by better scaling of the polynomial terms and the use of multi-time points in the reconstruction. In principle, it comes much closer to replicating the exact B and J measurements at each spacecraft.
Larger Scale 3D Magnetic Field Reconstructions
The 3D reconstruction that employs cubic terms can give exact solutions that are valid in the close vicinity (about twice the size) of the MMS tetrahedron. It suffers at larger scales due to overfitting of the terms. I present a new cubic solution that is much better at larger scales, by better scaling of the polynomial terms and the use of multi-time points in the reconstruction. In principle, it comes much closer to replicating the exact B and J measurements at each spacecraft.
