@Article{BittencourtSahaTeixTaka:1992:CoStLo,
               author = "Bittencourt, Jose Augusto and Sahai, Yogeshwar and Teixeira, 
                         Nelson Rodrigues and Takahashi, Hisao",
                title = "A comparative study of low-latitude ionospheric and OI 630nm 
                         nightglow observations with the SLIN and IRI models",
              journal = "Advances in Space Research",
                 year = "1992",
               volume = "12",
               number = "6",
                pages = "275--278",
             keywords = "AERONOMIA.",
             abstract = "Measurements of ionospheric F-region peak electron densities, peak 
                         heights and atomic oxygen 630 nm airglow emission column 
                         intensities, carried out at a low-latitude station located at 
                         Cachoeira Paulista (22.7 degrees S, 45 degrees W; dip latitude 
                         11,9 degrees S), in Brazil, are analysed and compared with the 
                         ionospheric parameters predicted by the SLIM and by the IRI 
                         ionospheric models. The MSIS neutral atmosphere model is used with 
                         the IRI model to calculate the 630 nm nightglow emission 
                         intensities. This comparative analysis considers data 
                         representative of the summer, winter and equinox seasons, obtained 
                         during the high solar activity period around 1980. Reasonably good 
                         agreement is obtained between the local time variations of the 
                         ionospheric and airglow data, and the IRI model predicted 
                         parameter variations, but the SLIM model overestimates the 
                         F-region peak heights especially during the late afternoon and 
                         nightime hours. These height discrepancies are explained in terms 
                         of the strong logitudinal dependence of the electromagnetic E x B 
                         vertical plasma drifts and thermospheric neutral winds, which 
                         greatly influences the dynamics of the low-latitude ionospheric 
                         plasma and airglow emissions. Due to the importance of the 
                         relative alignement condition between terminator and magnetic 
                         meridian, with its longitudinal and seasonal dependence, on the 
                         vertical plasma drifts around sunset, it is suggested that the 
                         slim ionospheric model should separately consider the longitudinal 
                         zones of positive, negative or zero magnetic declination.",
                 issn = "0273-1177",
                label = "7107",
             language = "en",
           targetfile = "1-s2.0-0273117792900726-main.pdf",
        urlaccessdate = "29 jun. 2024"
}