Visualization of Geomagnetic Environment Based on WebGL

Abstract

Earth magnetic field environment is divided into the main magnetic field and variable magnetic field. IGRF (International Geomagnetic Reference Field) is the internationally recognized model of main magnetic field nowadays. as for the variable magnetosphere model, Tsyganenko models are most widely used. Making use of the mapping of latitude and longitude to spatial location, we combine the two model's magnetic field vector linearly in GSM coordinates, and get the magnetic field lines and corresponding strength. Finally, the WebGL based on HTML5 standards is introduced to visualize a panoramic view of the geomagnetic magnetic field lines and its strength.