@InProceedings{ResendeNarBatMorGui:2012:StDiBl,
               author = "Resende, Laysa Cristina Ara{\'u}jo and De Nardini, Clezio Marcos 
                         and Batista, Inez Staciarini and Moro, Juliano and Guizelli, Lais 
                         Maria",
          affiliation = "{} and {} and {Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "A study of different blanketing Es layers during the solar cycle 
                         23",
            booktitle = "Abstracts...",
                 year = "2012",
         organization = "International Symposium on Equatorial Aeronomy, 13. (ISEA).",
             abstract = "We investigate the behavior of blanketing frequency (fbEs) 
                         measured by a digital ionosonde over S{\~a}o Lu{\'{\i}}s, 
                         Brazil (2.33°S, 44.2°W, dip: -4.5°), associated with different 
                         types of Es, according to the magnetic disturbance level and, in 
                         relation to the phase of strong magnetic storms that occured 
                         during the solar cycle 23. Our preliminary results showed that 
                         there are expressive changes in the fbEs characterized by 
                         occurrence of peaks that exceeds the ambient background values, 
                         mainly during the recovery phase of strong magnetic storms. These 
                         peaks are associated to the presence of blanketing Es types, which 
                         are not the common Es at the dip equator but replaced the Esq, a 
                         non-blanketing layer observed in ionograms due the plasma 
                         irregularities in the equatorial electrojet electric field. 
                         Therefore, we suppose the wind shear mechanism is taking place at 
                         latitudes close to the dip equator, where it is not supposed to 
                         operate efficiently. The results are discussed in terms of the 
                         statistics of the abnormal enhancement taking into account the 
                         magnetic disturbance level and phase of the magnetic storm, when 
                         applicable.",
  conference-location = "Paracas, Peru",
      conference-year = "12 a 17/03/2012",
                label = "self-archiving-INPE-MCTIC-GOV-BR",
           targetfile = "resende_study.pdf",
        urlaccessdate = "14 maio 2024"
}