Naslov
Magnetopause position and solar wind pressure: Going beyond a statistical relation

Autori
De Keyser, Johan ; Bandic, Mario ; Verbanac, Giuliana

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, ostalo, znanstveni

Skup
16th European Space Weather Week

Mjesto i datum
Liège, Belgija, 18.11.2019. - 22.11.2019

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
magnetopause, solar wind pressure, empirical reconstruction techniques , Cluster observations

Sažetak
The stand-off distance of the nose of the magnetopause is determined by pressure balance between the solar wind and the terrestrial magnetosphere. Since the solar wind pressure (mostly the ram pressure) and – to a lesser extent – the magnetospheric pressure vary, the magnetopause is in constant motion. In the past, several authors have derived a statistical relationship between solar wind ram pressure and magnetopause position obtained from a large number of identified magnetopause crossings at scattered moments in time. The present contribution goes beyond https://agu2020fallmeeting-agu.ipostersessions.com/Default.aspx?s=BF-33-1E-76-A2-0E-D0-56-BC-F3-11-69-F6-4A-DA-7A&pdfprint=true&guest.such a statistical approach and will present examples where a direct relation between magnetopause and solar wind pressure is identified during a continuous time interval. This is possible thanks to long-duration tracking of the magnetopause position with empirical reconstruction techniques that exploit Cluster observations. Both statistical correlations and continuous relations can be used for space weather prediction. We highlight the fundamental differences between both approaches for determining magnetospheric response to the solar wind driver.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Geofizika

Napomena
Sažetak predavanja dostupan je na: http://www.stce.be/esww2019/program/session_details.php?nr=14#

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