Global Earth Magnetic Field Modeling and Forecasting with Spherical Harmonics Decomposition

02/02/2021
by   Panagiotis Tigas, et al.
0

Modeling and forecasting the solar wind-driven global magnetic field perturbations is an open challenge. Current approaches depend on simulations of computationally demanding models like the Magnetohydrodynamics (MHD) model or sampling spatially and temporally through sparse ground-based stations (SuperMAG). In this paper, we develop a Deep Learning model that forecasts in Spherical Harmonics space 2, replacing reliance on MHD models and providing global coverage at one minute cadence, improving over the current state-of-the-art which relies on feature engineering. We evaluate the performance in SuperMAG dataset (improved by 14.53 (improved by 24.35 of the spherical harmonics reconstruction based on sparse ground-based stations (SuperMAG), showing that spherical harmonics can reliably reconstruct the global magnetic field as evaluated on MHD simulation.

READ FULL TEXT
POST COMMENT

Comments

There are no comments yet.

Authors

page 1

page 2

page 3

page 4

12/11/2020

Improving solar wind forecasting using Data Assimilation

Data Assimilation (DA) has enabled huge improvements in the skill of ter...
07/23/2020

Signal Enhancement for Magnetic Navigation Challenge Problem

Harnessing the magnetic field of the earth for navigation has shown prom...
02/11/2022

Identification of Flux Rope Orientation via Neural Networks

Geomagnetic disturbance forecasting is based on the identification of so...
05/18/2018

Spherical harmonics entropy for optimal 3D modeling

3D image processing constitutes nowadays a challenging topic in many sci...
08/24/2021

Hermite-Chebyshev pseudospectral method for inhomogeneous superconducting strip problems and magnetic flux pump modeling

Numerical simulation of superconducting devices is a powerful tool for u...
09/12/2018

Effects of rotation and magnetic field on the revival of a stalled shock in supernova explosions

We investigate axisymmetric steady solutions of (magneto)hydrodynamics e...
This week in AI

Get the week's most popular data science and artificial intelligence research sent straight to your inbox every Saturday.