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Solar surface sources of intense geomagnetic storms in solar cycle 24

Grant number: 13/03085-7
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): June 01, 2013
Effective date (End): May 31, 2016
Field of knowledge:Physical Sciences and Mathematics - Geosciences - Geophysics
Principal researcher:Alisson Dal Lago
Grantee:Laura Antonia Balmaceda
Home Institution: Instituto Nacional de Pesquisas Espaciais (INPE). Ministério da Ciência, Tecnologia e Inovações (Brasil). São José dos Campos , SP, Brazil
Associated scholarship(s):14/23716-4 - Development of cross-linked STEREO/COR2s CME catalogs, BE.EP.PD


It is currently known that solar transients such as flares, prominence eruptions and coronal mass ejections (CMEs) affect the Earth environment injecting particles and energy into the magnetosphere, ionosphere and upper atmosphere. There, they cause geomagnetic activity in the form of auroral activity observed at high latitudes, sub-storms, geomagnetic storms and other related effects that constitute the so-called space weather. In order to contribute to the study of such effects of the solar activity on the Earth environment, and mainly to the development of techniques and tools for space weather forecast, it is necessary in first place, to improve our current understanding of the origin and evolution of the different phenomena taking place in the solar atmosphere. At present, solar imagery at a wealth of wavelengths, combining multiple ground-based and space-borne data provide a valuable source of information to study the propagation of these phenomena from the Sun to the Earth. In this context, the main goal of this work is to contribute to the investigation of the physical processes that trigger solar activity associated to the occurrence of intense geomagnetic storms taking advantage of the vast set of instruments for solar observations currently available. In particular, we will analyze data with high spatial and time resolution from both multiple space missions and telescopes operating from ground in order to search for the solar surface sources of geomagnetic storms occurring during the ascending phase and maximum of current solar cycle 24. We intend to investigate their particular characteristics and determine properties in common in order to find patterns that allow a better prediction of their geoeffectiveness level and travel time to the Earth's vicinity, both parameters crucial to forecast space weather.

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
BALMACEDA, LAURA A.; VOURLIDAS, ANGELOS; STENBORG, GUILLERMO; DAL LAGO, ALISSON. How Reliable Are the Properties of Coronal Mass Ejections Measured from a Single Viewpoint?. ASTROPHYSICAL JOURNAL, v. 863, n. 1, . (13/03085-7, 14/23716-4)
VOURLIDAS, ANGELOS; BALMACEDA, LAURA A.; STENBORG, GUILLERMO; DAL LAGO, ALISSON. Multi-viewpoint Coronal Mass Ejection Catalog Based on STEREO COR2 Observations. ASTROPHYSICAL JOURNAL, v. 838, n. 2, . (14/23716-4, 13/03085-7)

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