Geoeffective events through solar cycles

Brigitte Schmieder; Guillaume Aulanier

doi:10.1017/S174392131800100X

Geoeffective events through solar cycles

Brigitte Schmieder
, Guillaume Aulanier

Sorbonne Univ.

Résultats de recherche: Contribution à un journal › Article de conférence › Revue par des pairs

Résumé

Extreme solar storms are well known in the historical databases. Since the modern era, it has been possible to associate clearly geomagnetic disturbances with solar events (flares, SEP, CMEs). In the recent solar cycles the geoeffective events (number and strength) are decreasing. As an example, in the 2002 maximum activity year, we present how many flares, and CMEs were geoeffective. Based on observations and simulations, we discuss on the size of sunspots and the field strength to get more energetic flares (> 10³² ergs) in the near future.

langue originale	Anglais
Pages (de - à)	255-256
Nombre de pages	2
journal	Proceedings of the International Astronomical Union
Volume	13
Numéro de publication	S340
Les DOIs	https://doi.org/10.1017/S174392131800100X
état	Publié - 1 janv. 2018
Modification externe	Oui
Evénement	340th Symposium of the International Astronomical Union on Long-term Datasets for the Understanding of Solar and Stellar Magnetic Cycles - Jaipur, Inde Durée: 19 févr. 2018 → 23 févr. 2018

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10.1017/S174392131800100X

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title = "Geoeffective events through solar cycles",

abstract = "Extreme solar storms are well known in the historical databases. Since the modern era, it has been possible to associate clearly geomagnetic disturbances with solar events (flares, SEP, CMEs). In the recent solar cycles the geoeffective events (number and strength) are decreasing. As an example, in the 2002 maximum activity year, we present how many flares, and CMEs were geoeffective. Based on observations and simulations, we discuss on the size of sunspots and the field strength to get more energetic flares (> 1032 ergs) in the near future.",

keywords = "Solar-terrestrial Relations, Sun: Coronal Mass Ejections (CMEs), Sun: flares",

author = "Brigitte Schmieder and Guillaume Aulanier",

note = "Publisher Copyright: {\textcopyright} International Astronomical Union 2018.; 340th Symposium of the International Astronomical Union on Long-term Datasets for the Understanding of Solar and Stellar Magnetic Cycles ; Conference date: 19-02-2018 Through 23-02-2018",

year = "2018",

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doi = "10.1017/S174392131800100X",

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TY - JOUR

T1 - Geoeffective events through solar cycles

AU - Schmieder, Brigitte

AU - Aulanier, Guillaume

N1 - Publisher Copyright: © International Astronomical Union 2018.

PY - 2018/1/1

Y1 - 2018/1/1

N2 - Extreme solar storms are well known in the historical databases. Since the modern era, it has been possible to associate clearly geomagnetic disturbances with solar events (flares, SEP, CMEs). In the recent solar cycles the geoeffective events (number and strength) are decreasing. As an example, in the 2002 maximum activity year, we present how many flares, and CMEs were geoeffective. Based on observations and simulations, we discuss on the size of sunspots and the field strength to get more energetic flares (> 1032 ergs) in the near future.

AB - Extreme solar storms are well known in the historical databases. Since the modern era, it has been possible to associate clearly geomagnetic disturbances with solar events (flares, SEP, CMEs). In the recent solar cycles the geoeffective events (number and strength) are decreasing. As an example, in the 2002 maximum activity year, we present how many flares, and CMEs were geoeffective. Based on observations and simulations, we discuss on the size of sunspots and the field strength to get more energetic flares (> 1032 ergs) in the near future.

KW - Solar-terrestrial Relations

KW - Sun: Coronal Mass Ejections (CMEs)

KW - Sun: flares

UR - https://www.scopus.com/pages/publications/105008518432

U2 - 10.1017/S174392131800100X

DO - 10.1017/S174392131800100X

M3 - Conference article

AN - SCOPUS:105008518432

SN - 1743-9213

VL - 13

SP - 255

EP - 256

JO - Proceedings of the International Astronomical Union

JF - Proceedings of the International Astronomical Union

IS - S340

T2 - 340th Symposium of the International Astronomical Union on Long-term Datasets for the Understanding of Solar and Stellar Magnetic Cycles

Y2 - 19 February 2018 through 23 February 2018

ER -

Geoeffective events through solar cycles

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