@Article{SahaiBittTeixTaka:1981:PlIrTr,
               author = "Sahai, Yogeshwar and Bittencourt, Jos{\'e} Augusto and Teixeira, 
                         Nelson Rodrigues and Takahashi, Hisao",
                title = "Plasma irregularities in the tropical F-region detected by OI 7774 
                         A and 6300 A nightglow measurements",
              journal = "Journal of Geophysical Research",
                 year = "1981",
               volume = "86",
               number = "A5",
                pages = "3496--3500",
                month = "May",
             keywords = "AERONOMIA, irregularidades, regi{\~a}o F, luminesc{\^e}ncia 
                         noturna, medi{\c{c}}{\~a}o, irregularities, F region, nightglow, 
                         measurement.",
             abstract = "Simultaneous measurements of the permitted OI 7774 A and the 
                         forbidden OI 6300 A nightglow emissions were carried out 
                         at-Cachoeira Paulista (geographic 22.7 degree S, 45.0 degree W), 
                         Brazil, during the period of April 1978 to March 1979. Both the 
                         emissions were observed with tilting filter-type photometers. 
                         During spread-F conditions, on several nights, both the emissions 
                         showed simultaneous short-time large intensity depletions, 
                         indicating the presence of large-scale irregularities in the 
                         F-region. Data for the period September-October 1978 are presented 
                         and discussed. The depletions observed are possibly associated 
                         with the passage of F-region holes or bubbles drifting across the 
                         sky.",
                 issn = "0148-0227 and 2156-2202",
                label = "2071",
           targetfile = "INPE-1844.pdf",
        urlaccessdate = "29 jun. 2024"
}