@Article{AbreuSaFaJeBiPi:2011:InIoRe,
               author = "Abreu, A. J. and Sahai, Y. and Fagundes, P. R. and Jesus, R. and 
                         Bittencourt, J. A. and Pillat, Valdir Gil",
          affiliation = "{} and Departamento de F{\'{\i}}sica e Astronomia, Universidade 
                         do Vale do Para{\'{\i}}ba (UNIVAP), Av. Shishima Hifumi, 2911, 
                         S{\~a}o Jos{\'e} dos Campos, S{\~a}o Paulo, Brazil and 
                         Departamento de F{\'{\i}}sica e Astronomia, Universidade do Vale 
                         do Para{\'{\i}}ba (UNIVAP), Av. Shishima Hifumi, 2911, S{\~a}o 
                         Jos{\'e} dos Campos, S{\~a}o Paulo, Brazil and Departamento de 
                         F{\'{\i}}sica e Astronomia, Universidade do Vale do 
                         Para{\'{\i}}ba (UNIVAP), Av. Shishima Hifumi, 2911, S{\~a}o 
                         Jos{\'e} dos Campos, S{\~a}o Paulo, Brazil and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and Departamento de 
                         F{\'{\i}}sica e Astronomia, Universidade do Vale do 
                         Para{\'{\i}}ba (UNIVAP), Av. Shishima Hifumi, 2911, S{\~a}o 
                         Jos{\'e} dos Campos, S{\~a}o Paulo, Brazil",
                title = "An investigation of ionospheric F region response in the Brazilian 
                         sector to the super geomagnetic storm of May 2005",
              journal = "Advances in Space Research",
                 year = "2011",
               volume = "48",
               number = "7",
                pages = "1211--1220",
                month = "Oct",
             keywords = "Geomagnetic storm, Ionosphere, Equatorial ionospheric 
                         irregularities.",
             abstract = "In this paper, we have investigated the responses of the 
                         ionospheric F region at equatorial and low latitude regions in the 
                         Brazilian sector during the super geomagnetic storm on 15-16 May 
                         2005. The geomagnetic storm reached a minimum Dst of -263 nT at 
                         0900 UT on 15 May. In this paper, we present vertical total 
                         electron content (vTEC) and phase fluctuations (in TECU/min) from 
                         Global Positioning System (GPS) observations obtained at Belem, 
                         Brasilia, Presidente Prudente, and Porto Alegre, Brazil, during 
                         the period 14-17 May 2005. Also, we present ionospheric parameters 
                         h'F, hpF2, and foF2, using the Canadian Advanced Digital Ionosonde 
                         (CADI) obtained at Palmas and Sao Jose dos Campos, Brazil, for the 
                         same period. The super geomagnetic storm has fast decrease in the 
                         Dst index soon after SSC at 0239 UT on 15 May. It is a good 
                         possibility of prompt penetration of electric field of 
                         magnetospheric origin resulting in uplifting of the F region. The 
                         vTEC observations show a trough at BELE and a crest above UEPP, 
                         soon after SSC, indicating strengthening of nighttime equatorial 
                         anomaly. During the daytime on 15 and 16 May, in the recovery 
                         phase, the variations in foF2 at SJC and the vTEC observations, 
                         particularly at BRAZ, UEPP, and POAL, show large positive 
                         ionospheric storm. There is ESF on the all nights at PAL, in the 
                         post-midnight (UT) sector, and phase fluctuations only on the 
                         night of 14-15 May at BRAZ, after the SSC. No phase fluctuations 
                         are observed at the equatorial station BELE and low latitude 
                         stations (BRAZ, UEPP, and POAL) at all other times. This indicates 
                         that the plasma bubbles are generated and confined on this 
                         magnetically disturbed night only up to the low magnetic latitude 
                         and drifted possibly to west.",
                  doi = "10.1016/j.asr.2011.05.036",
                  url = "http://dx.doi.org/10.1016/j.asr.2011.05.036",
                 issn = "0273-1177",
                label = "lattes: 1106857072073407 6 AbreuSaFaJeBiPi:2011:AnInOf",
             language = "en",
           targetfile = "Abreu-AdvSpaceRes-v48-n7-p1211-1220-science[1].pdf",
        urlaccessdate = "01 maio 2024"
}