Nalazite se na CroRIS probnoj okolini. Ovdje evidentirani podaci neće biti pohranjeni u Informacijskom sustavu znanosti RH. Ako je ovo greška, CroRIS produkcijskoj okolini moguće je pristupi putem poveznice www.croris.hr
izvor podataka: crosbi !

Analysis of Sun‐Earth Connections in the 100 Biggest Geomagnetic Storms Recorded Since 1868 (CROSBI ID 603290)

Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija

Lefevre, Laure ; Dumbović, Mateja ; Vennerstrom, Susanne ; Clette, Frederic ; Sudar, Davor ; Vršnak, Bojan Analysis of Sun‐Earth Connections in the 100 Biggest Geomagnetic Storms Recorded Since 1868. 2013

Podaci o odgovornosti

Lefevre, Laure ; Dumbović, Mateja ; Vennerstrom, Susanne ; Clette, Frederic ; Sudar, Davor ; Vršnak, Bojan

engleski

Analysis of Sun‐Earth Connections in the 100 Biggest Geomagnetic Storms Recorded Since 1868

We present research on Sun‐Earth connections in the context of the most extreme space weather events of the last 150 years. To identify the key‐factors leading to these extreme events, we have selected the 100 most important geomagnetic storms in this time period based on the well‐known aa index. Here we focus on characterizing the active regions most probably responsible for these major geomagnetic storms. We use detailed sunspot catalogs as well as solar images and drawings. For the most recent geomagnetic events, vast amounts of detailed solar data is promptly available and thus solar terrestrial connections easy to access through numerous detailed studies. Events posterior to the creation of the H‐alpha flare patrol in 1938 are still relatively easy to study, and numerous solar drawings span this period. However, back to the beginning of the aa index in 1868, solar data from catalogs become scarce as well as detailed sunspot drawings. For this study, we have systematically gathered the most interesting sunspot parameters back to 1868, hunting solar drawings from the old Greenwich archives, and extracting sunspot parameters ourselves. We present a detailed statistical analysis of the active region parameters relative to the flare/geomagnetic parameters, which leads us to clues on how to characterize future storms from these specific sunspot parameters. The presented work has received funding from the European Union Seventh Framework Programme (FP7/2007‐2013) under grant agreement no 263252 [COMESEP].

active regions ; sunspots ; solar flares ; geomagnetic storms

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

Podaci o prilogu

2013.

objavljeno

Podaci o matičnoj publikaciji

Podaci o skupu

10th European Space Weather Week

poster

18.11.2013-22.11.2013

Antwerpen, Belgija

Povezanost rada

Fizika