@Article{EcherDomMenEchGon:2019:ViLa1,
               author = "Echer, Mariza Pereira de Souza and Domingues, Margarete Oliveira 
                         and Mendes, Odim and Echer, Ezequiel and Gonzalez Alarcon, Walter 
                         Dem{\'e}trio",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)}",
                title = "Variability aspects of the Mars surface data from summer to winter 
                         solstice: Viking Lander 1 observations revisited",
              journal = "Brazilian Journal of Physics",
                 year = "2019",
               volume = "49",
               number = "1",
                pages = "89--96",
                month = "Feb.",
             keywords = "Mars · Viking missions · Viking lander meteorological data · 
                         Continuous wavelet transform.",
             abstract = "In this work, we revisited the meteorological datasets of 
                         temperature and pressure, recorded onboard the Viking Lander 1, 
                         evolving from summer to winter Martian solstice. The datasets were 
                         provided by the Viking Meteorology Experiment Team and we 
                         performed the study using a multiscale signal analysis technique 
                         based on an available wavelet transform methodology. Even in the 
                         presence of data gaps, the methodology provides the skill to 
                         perform the time-scale signal characterization. We highlighted the 
                         results with new features related to the non-stationary behavior 
                         in the data. The main spectral periods found in pressure data are 
                         0.25 SOL (6.25 h), 0.33 SOL (8.3 h), 0.5 SOL (12.5 h), 1 SOL (25 
                         h), 10.2 SOLS, a broad peak between 21 and 33 SOLS. In 
                         temperature, the main periods were 0.5 SOL (12.5 h), 1 SOL (25 h), 
                         and 32 and 64 SOLS. The correlation between the pressure and 
                         temperature data shows anti-correlation in the scales larger than 
                         1.5 SOL, with a high determination coefficient (more than 64%).",
                  doi = "10.1007/s13538-018-00623-8",
                  url = "http://dx.doi.org/10.1007/s13538-018-00623-8",
                 issn = "0103-9733",
             language = "en",
           targetfile = "echer_variability.pdf",
        urlaccessdate = "27 abr. 2024"
}