@Article{SahaiTakBitSobTei:1987:SoCySe,
               author = "Sahai, Y. and Takahashi, Hisao and Bittencourte, Jos{\'e} Augusto 
                         and Sobral, Jos{\'e} Humberto Andrade and Teixeira, N. R.",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)}",
                title = "Solar cycle and seasonal variations of the low latitude OI 6300A 
                         nightglow",
              journal = "Journal of Atmospheric and Terrestrial Physics",
                 year = "1987",
               volume = "50",
                pages = "135--140",
             keywords = "6300 A nightglow, solar cycle variation.",
             abstract = "Regular zenith measurements of the OI 6300a nightglow emission 
                         have been carried out at Cachoeira Paulista (22.7 °S, 45.00W; 
                         geomag. 11.9° S), Brazil,since 1975. The long series of the 
                         observations during the period 1975 to 1982, including the 
                         ascending phase of the last solar cycle, permitted studies of 
                         solar cycle effects and seasonal variations. A large intensity 
                         increase, about seven times, from low solar activity to high solar 
                         activity has been observed. Also, the seasonal-nocturnal intensity 
                         variations show large changes between years of low and high solar 
                         activity. The characteristics of the variations observed are 
                         closely related to the equatorial electric field variations, since 
                         the observation site is under the southern equatorial ionospheric 
                         anomaly crest.",
           copyholder = "SID/SCD",
             language = "en",
           targetfile = "INPE-4121.pdf",
        urlaccessdate = "16 jun. 2024"
}