author = "Guharay, A. and Batista, Paulo Prado",
          affiliation = "{Physical Research Laboratory} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)}",
                title = "On the variability of tides during a major stratospheric sudden 
                         warming in September 2002 at Southern hemispheric extra-tropical 
              journal = "Advances in Space Research",
                 year = "2019",
               volume = "63",
               number = "8",
                pages = "2337--2344",
                month = "Apr.",
             keywords = "Stratospheric sudden warming, Tides, Middle atmosphere dynamics.",
             abstract = "Investigation of the middle atmospheric tidal response to the 
                         September 2002 sudden stratospheric warming (SSW) is carried out 
                         from a Southern hemispheric extra-tropical location Cachoeira 
                         Paulista (22.7S, 45W) using meteor radar observations and 
                         reanalysis database. Significant diurnal and semidiurnal tidal 
                         amplitudes are found in the mesosphere and lower thermosphere 
                         (MLT) a few days prior to the warming onset consistent with the 
                         high latitude observations. In the troposphere and stratosphere 
                         (TS) the tidal amplitudes attain higher value during the main 
                         phase of the warming which decrease subsequently. The simultaneous 
                         enhancement of the tidal amplitudes in the TS and diminution in 
                         the MLT may imply strong dissipation of the upward propagating 
                         tides during the SSW at present location. An evident signature of 
                         the tide-planetary wave coupling due to nonlinear interactions is 
                         found. A preferential modulation of the tidal amplitudes by 
                         long/short period planetary waves are observed in the MLT/TS. The 
                         migrating diurnal tide (DW1) and nonmigrating semidiurnal tide 
                         (SW1) at 10 hPa pressure level show considerable variability 
                         during the warming episode.",
                  doi = "10.1016/j.asr.2018.12.037",
                  url = "http://dx.doi.org/10.1016/j.asr.2018.12.037",
                 issn = "0273-1177 and 1879-1948",
             language = "en",
           targetfile = "guharay_variability.pdf",
        urlaccessdate = "29 nov. 2020"