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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Ionospheric response to the 2009 sudden stratospheric warming over the equatorial, low, and middle latitudes in the South American sector

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Autor(es):
Fagundes, P. R. [1] ; Goncharenko, L. P. [2] ; de Abreu, A. J. [1] ; Venkatesh, K. ; Pezzopane, M. [3] ; de Jesus, R. [1] ; Gende, M. [4] ; Coster, A. J. [2] ; Pillat, V. G. [1]
Número total de Autores: 9
Afiliação do(s) autor(es):
[1] Univ Vale Paraiba UNIVAP, Fis & Astron, Sao Jose Dos Campos, SP - Brazil
[2] MIT, MIT Haystack Observ, Westford, MA 01886 - USA
[3] Ist Nazl Geofis & Vulcanol, Rome - Italy
[4] Univ Nacl La Plata, Fac Ciencias Astron & Geofis, La Plata - Argentina
Número total de Afiliações: 4
Tipo de documento: Artigo Científico
Fonte: JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS; v. 120, n. 9, p. 7889-7902, SEP 2015.
Citações Web of Science: 18
Resumo

The present study investigates the ionospheric total electron content (TEC) and F-layer response in the Southern Hemisphere equatorial, low, and middle latitudes due to major sudden stratospheric warming (SSW) event, which took place during January-February 2009 in the Northern Hemisphere. In this study, using 17 ground-based dual frequency GPS stations and two ionosonde stations spanning latitudes from 2.8 degrees N to 53.8 degrees S, longitudes from 36.7 degrees W to 67.8 degrees W over the South American sector, it is observed that the ionosphere was significantly disturbed by the SSW event from the equator to the midlatitudes. During day of year 26 and 27 at 14:00 UT, the TEC was two times larger than that observed during average quiet days. The vertical TEC at all 17 GPS and two ionosonde stations shows significant deviations lasting for several days after the SSW temperature peak. Using one GPS station located at Rio Grande (53.8 degrees S, 67.8 degrees W, midlatitude South America sector), it is reported for the first time that the midlatitude in the Southern Hemisphere was disturbed by the SSW event in the Northern Hemisphere. (AU)

Processo FAPESP: 12/08445-9 - Estudo da variabilidade dia-a-dia da mesosfera, termosfera e ionosfera em baixas latitudes e região equatorial, durante o ciclo solar 24
Beneficiário:Paulo Roberto Fagundes
Linha de fomento: Auxílio à Pesquisa - Temático