@Article{ResendeDenaBati:2013:AbFbEs,
               author = "Resende, L{\'a}ysa Cristina Araujo and Denardini, Clezio Marcos 
                         and Batista, Inez Staciarini",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)}",
                title = "Abnormal fb Es enhancements in equatorial Es layers during 
                         magnetic storms of solar cycle 23",
              journal = "Journal of Atmospheric and Solar-Terrestrial Physics",
                 year = "2013",
               volume = "102",
                pages = "228--234",
                month = "Sep.",
             keywords = "background value, competing mechanisms, digital ionosondes, 
                         equatorial electrojet, magnetic storms, plasma irregularities, 
                         space weather, sporadic E-layer, atmospheric electricity, E 
                         region, solar energy, geomagnetism.",
             abstract = "We have analyzed the behavior of blanketing frequency of the Es 
                         layer (fb Es) occurring at an equatorial station covering the days 
                         before, during and subsequent to 24 intense and very intense 
                         magnetic storms (Dst d - 100 nT) that occurred during the solar 
                         cycle 23. The fb Es was measured by digital ionosonde over 
                         S{\~a}o Lu{\'{\i}}s, Brazil (2.33° S, 44.2° W, dip: -4.5°). Our 
                         analysis shows that there are significant changes in the fb Es, 
                         mainly during the recovery phase of magnetic storms, characterized 
                         by occurrence of peaks that exceed the ambient background values. 
                         Also, these peaks are associated to other types of sporadic E 
                         layer than the Esq (a non-blanketing layer detected due the plasma 
                         irregularities in the equatorial electrojet), which in turn means 
                         competing mechanisms. The results are discussed in terms of the 
                         statistics of the abnormal enhancement taking into account the 
                         phase of the magnetic storm.",
                  doi = "10.1016/j.jastp.2013.05.020",
                  url = "http://dx.doi.org/10.1016/j.jastp.2013.05.020",
                 issn = "1364-6826",
                label = "scopus 2013-11",
             language = "en",
           targetfile = "1-s2.0-S1364682613001764-main.pdf",
        urlaccessdate = "21 maio 2024"
}