@Article{AmbrizziKayaStep:1998:CoGlTr,
               author = "Ambrizzi, T. and Kayano, Mary T. and Stephenson, D. B.",
          affiliation = "{Department of Atmospheric Sciences} and Instituto Nacional de 
                         Pesquisas Espaciais (INPE), Centro de Previs{\~a}o de Tempo e 
                         Estudos Clim{\'a}ticos (CPTEC) and {Met{'e}o-France}",
                title = "A comparison of global tropospheric teleconnections using observed 
                         satellite and general circulation model total ozone column data 
                         for 1979-91",
              journal = "Climate Dynamics",
                 year = "1998",
               volume = "14",
               number = "2",
                pages = "133--150",
                month = "feb.",
             keywords = "northern-hemisphere winter, nino-southern oscillation, sea-surface 
                         temperature, 500-MB height fluctuations, quasi-biennial 
                         oscillation, low-frequency variability, rossby-wave propagation, 
                         short-time scales, El-Nino, interannual variability.",
             abstract = "The total ozone column is well correlated with tropospheric fields 
                         such as the heights of the upper tropospheric geopotential 
                         surfaces and thus it can provide useful information on temporal 
                         variability in the troposphere. The global availability of long 
                         period satellite measurements of the total ozone column, taken by 
                         the TOMS instruments since 1978, provides a valuable and 
                         independent data set for use in studies of seasonal and 
                         interannual climate variability. In this study, the global 
                         low-frequency seasonal teleconnections in the observed TOMS data 
                         from 1979-91 have been investigated using seasonal 
                         teleconnectivity maps and empirical orthogonal function analysis. 
                         They have also been compared with the results from a simulation 
                         made with the atmospheric GCM at Meteo-France, having prescribed 
                         observed sea surface temperatures for the same period. In the 
                         observed total ozone, strong ENSO-related wave number one 
                         longitudinal dipole patterns are seen in both the tropics and in 
                         the Southern Hemisphere extratropics. The model shows much weaker 
                         variability in total ozone yet appears to be able to capture 
                         similar teleconnection patterns in the tropics related to ENSO. In 
                         the SH extratropics, the model total ozone shows a strong wave 
                         number 3 response rather than the wave number one dipole seen in 
                         the observations. A wave number 3 response is also evident in the 
                         200 hPa geopotential height simulated by the model and in the NCEP 
                         analysis, and is consistent with the response in a linearised 
                         barotropic model forced in the Indonesian region. The different 
                         responses in the modelled and observed total ozone, suggest that 
                         tropopause effect is not the major factor in the SH extratropics, 
                         and it is likely that horizontal ozone transport also plays a role 
                         in this region. Despite a generally poor simulation of the zonal 
                         mean total ozone, the model was able to capture the anomalous 
                         strengthening of the SH stationary waves during austral spring of 
                         1988, related to an intense stratosphere sudden warming.",
           copyholder = "SID/SCD",
                 issn = "0930-7575",
             language = "en",
           targetfile = "Ambrizzi.Comparison.pdf",
                  url = "http://www.springerlink.com/media/B0CYHCRGLH6QX02G9M7J/Contributions/D/A/J/L/DAJL6878Y7NWY12N.pdf",
        urlaccessdate = "25 abr. 2024"
}