@Article{CaiBWQLSEDMMB:2021:ObPoOI,
               author = "Cai, Xuguang and Burns, Alan G. and Wang, Wenbin and Qian, Liying 
                         and Liu, Jiang and Solomon, Stanley C. and Eastes, Richard W. and 
                         Daniell, Robert E. and Martinis, Carlos R. and McClintock, William 
                         E. and Batista, Inez Staciarini",
          affiliation = "{High Altitude Observatory} and {High Altitude Observatory} and 
                         {High Altitude Observatory} and {High Altitude Observatory} and 
                         {High Altitude Observatory} and {High Altitude Observatory} and 
                         {University of Colorado} and {Ionospheric Physics Consulting} and 
                         {Boston University} and {University of Colorado} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)}",
                title = "Observation of Postsunset OI 135.6 nm Radiance Enhancement Over 
                         South America by the GOLD Mission",
              journal = "Journal of Geophysical Research: Space Physics",
                 year = "2021",
               volume = "126",
               number = "2",
                pages = "e2020JA028108",
                month = "Feb.",
             abstract = "The Global-scale Observation of Limb and Disk (GOLD) mission, for 
                         the first time, provides synoptic two-dimensional (2D) maps of OI 
                         135.6 nm observations. These maps describe the unambiguous and 
                         dynamic evolution of nighttime ionospheric F2-peak electron 
                         densities (NmF2) as the 135.6 nm airglow emission radiance 
                         correlates well with NmF2 at night. On November 19, 2018, the 
                         135.6 nm radiance measured by GOLD, NmF2 measured by a digisonde, 
                         and GPS total electron content (TEC) measurements at Cachoeira 
                         Paulista (CP) all showed a postsunset enhancement, with an 
                         increase near 22:30 universal time. The 135.6 nm radiance map 
                         showed that this enhancement was due to the southward movement of 
                         the southern equatorial ionization anomaly (EIA) crest. Therefore, 
                         the GOLD observation showed the linkage between postsunset 
                         enhancement of NmF2 and EIA movement. Furthermore, unlike the 
                         southward movement of the southern crest, the corresponding EIA 
                         northern crest, however, did not show northward motion. This is 
                         the first time that the EIA hemispheric asymmetry, which included 
                         both different densities and movement of two crests in a short 
                         time period (<2-h), was captured. The cause of this asymmetric 
                         movement of the two crests is not clear and requires further 
                         investigation.",
                  doi = "10.1029/2020JA028108",
                  url = "http://dx.doi.org/10.1029/2020JA028108",
                 issn = "2169-9402",
             language = "en",
           targetfile = "cai_observation.pdf",
        urlaccessdate = "09 maio 2024"
}