author = "Shume, E. B. and Rodrigues, F. S. and Mannucci, A. J. and Paula, 
                         Eurico Rodrigues de",
          affiliation = "{Jet Propulsion Laboratory} and {University of Texas at Dallas} 
                         and {Jet Propulsion Laboratory} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)}",
                title = "Modulation of equatorial electrojet irregularities by atmospheric 
                         gravity waves",
              journal = "Journal of Geophysical Research: Space Physics",
                 year = "2014",
               volume = "119",
               number = "1",
                pages = "366--374",
             abstract = "On 9 January 2002 and 14 November 2001, the S{\~a}o Lu{\'{\i}}s 
                         30 MHz coherent backscatter radar observed unusual daytime echoes 
                         scattered from the equatorial electrojet. The electrojet echoing 
                         layers on these days, as seen in the range time intensity maps, 
                         exhibited quasiperiodic oscillations. Time-frequency decomposition 
                         of the magnetic field perturbations H, measured simultaneously by 
                         the ground-based magnetometers, also showed evidence of 
                         short-period waves. The ground-based observations were aided by 
                         measurements of the brightness temperature in the water vapor and 
                         infrared bands made by the GOES 8 satellite. The GOES 8 satellite 
                         measurements indicated evidence of deep tropospheric convection 
                         activities, which are favorable for the launch of atmospheric 
                         gravity waves (AGW) near S{\~a}o Lu{\'{\i}}s. Our 
                         multitechnique investigation, combined with an analysis of the 
                         equatorial electric field and current density, indicates that AGW 
                         forcing could have been responsible, via coupling with E region 
                         electric fields, for the short-period electrojet oscillations 
                         observed over S{\~a}o Lu{\'{\i}}s. Key Points Quasi-periodic 
                         oscillation of equatorial electrojet waves Ionosphere-atmosphere 
                         coupling Modulation of electrojet waves by gravity waves 2014. 
                         American Geophysical Union. All Rights Reserved.",
                  doi = "10.1002/2013JA019300",
                  url = "http://dx.doi.org/10.1002/2013JA019300",
                 issn = "2169-9402",
                label = "scopus 2014-05 ShumeRodrMannPaul:2014:MoEqEl",
             language = "en",
        urlaccessdate = "18 abr. 2021"