Machine Learning Tools for Predicting Solar Energetic Particle Hazards: Progress and Plans
Speaker: Viacheslav Sadykov, BAERI / NASA Ames Research Center
Presentation
Abstract
Solar Energetic Particles (SEPs) are among the most dangerous transient phenomena of solar activity. Representing hazardous radiation, SEPs may affect the health of astronauts in the open space and create difficulties for current and future space exploration. In this seminar, the first-year progress on the “Machine Learning Tools for Predicting Solar Energetic Particle Hazards” project under the NASA Early Stage Innovation STMD program will be presented. The primary objective of the project is to enhance predictions of SEPs by implementing automatic data characterization and Machine Learning (ML) tools. The first part of the seminar highlights the development of an online-accessible database that integrates a variety of solar and heliospheric data, metadata, and descriptors related to Solar Proton Events (SPEs). The database is supported by the Application Programming Interface (API) and a web application for data search and retrieval. The second part of the seminar is dedicated to the development of “all-clear” forecasts of SEP events. In particular, we consider a problem of the daily forecasts of SPEs based on the properties of the magnetic fields in solar Active Regions (ARs), preceding soft X-ray and proton fluxes, and statistics of the solar radio bursts. The predictions of the ML model are compared with the SWPC NOAA operational forecasts of SPEs. Our preliminary results indicate that 1) it is necessary to account for the ARs at the Western limb and the far side of the Sun for the AR-based predictions, 2) characteristics of the preceding proton flux are the most important for the prediction, 3) daily median properties of the ARs may be excluded from the forecast without the significant performance loss, 4) ML-based forecasts outperform SWPC NOAA forecasts in the situations when missed SPEs are very undesirable. The introduced approach indicates a possibility to develop a robust “all-clear” SPE forecasts by employing machine-learning methods.
Biography