Space weather and advances in its prediction

by Dr. Olga Khabarova

IZMIRAN Moscow

at Astrophysics and Cosmology Seminar

Wed, 23 Nov 2022, 11:10
Sacta-Rashi Building for Physics (54), room 207

Abstract

Space weather variations are consequences of dynamical processes occurring at the Sun at temporal scales from minutes to days. They determine a state of the near-Earth space environment, the magnetosphere, the ionosphere and even the atmosphere. Sharp changes in space weather reflected in the X-ray and energetic particle enhancements as well as in geomagnetic storms represent a potential hazard not only for sensitive satellite equipment, astronauts and crews of intercontinental flights but also for the entire technosphere. There is also evidence for the sensitivity of bioobjects to geomagnetic field pulsations and increases in the cosmic ray intensity. There are different ways to predict variable space weather, from the solar flare control to building prognoses based on in situ measurements of key geoeffective solar wind parameters at the 1st Lagrangian point. The talk discusses different aspects of space weather, physical processes behind its hazardous effects as well as problems and recent advances in its forecasting.

Created on 19-11-2022 by Zitrin, Adi (zitrin)
Updaded on 19-11-2022 by Zitrin, Adi (zitrin)