A method for real-time GLE modeling E. V. Vashenyuk 1Polar Geophysical Institute, KSC Russian Academy of Sciences, Apatity, Russia
Received: 15 Nov 2010 – Revised: 27 Feb 2011 – Accepted: 30 Mar 2011 – Published: 26 Oct 2011
Abstract. By now real time systems of data collection of neutron monitor network have been created. The
main goal of such systems is early detection of dangerous events of space weather, such as GLE,
caused by arrival to the Earth of relativistic solar protons. Characteristics of these particles are
determined from the data of the worldwide neutron monitor network by methods of GLE
modeling. Traditional GLE modeling requires data of no less than 30–35 stations and takes a
long time of computations. We developed a truncated technique of solar proton spectrum
determination by data of limited number (20–25) of neutron monitor stations and with a
simplified procedure of computations adapted for operative diagnostics of relativistic solar
protons just arriving to the Earth. Possibilities of this truncated GLE modeling for the early
forecast of radiation-dangerous fluxes of solar particles with moderate energies are also shown.
Citation: Vashenyuk, E. V.: A method for real-time GLE modeling, Astrophys. Space Sci. Trans., 7, 453-458, doi:10.5194/astra-7-453-2011, 2011.