@Article{ClemeshaTakSimGobBat:2005:ExEvSo,
               author = "Clemesha, Barclay Robert and Takahashi, Hisao and Simonich, D. M. 
                         and Gobbi, Delano and Batista, Pedro Paulo",
          affiliation = "Instituto Nacional de Pesquisas Espaciais,Divis{\~a}o de 
                         Aeronomia(INPE,DAE)",
                title = "Experimental evidence for solar cycle and long-term changes in the 
                         low-latitude MLT region",
              journal = "Journal of Atmospheric and Solar-Terrestrial Physics",
                 year = "2005",
               volume = "67",
               number = "1-2",
                pages = "191--196",
                month = "Jan.",
             keywords = "global trend, solar-cycle, MLT.",
             abstract = "There is a great deal of interest in long-term change in the upper 
                         atmosphere and its possible relationship with human activities, 
                         but it is clear that we do not yet have a consistent picture of 
                         solar cycle and long-term trends in the MLT region. The long 
                         series of rocket measurements made from the early 1960s through to 
                         the mid-1990s. over a wide range of latitudes, have been 
                         interpreted by some as showing strong long-term trends, but there 
                         are considerable doubts as to the reliability of these 
                         measurements for heights above about 50 km. Measurements made by 
                         various other techniques, such as airglow rotational temperature, 
                         VLF reflection height. and satellite-borne radiometers provide 
                         conflicting results. At low latitudes, published results from 
                         satellite and sodium lidar measurements indicate negligible trends 
                         but new results from OH rotational temperature measurements, made 
                         a 23degreesS. show consistent solar cycle variations in very close 
                         synchronization with the F10.7 flux, although with a linear trend 
                         much larger than expected. (C) 2004 Elsevier Ltd. All rights 
                         reserved.",
           copyholder = "SID/SCD",
                 issn = "1364-6826",
             language = "English",
           targetfile = "99.pdf",
        urlaccessdate = "05 maio 2024"
}