@InProceedings{OliveiraKamp:2019:AsEfPa,
               author = "Oliveira, Andr{\'e}a de Lima and Kampel, Milton",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)}",
                title = "Assessing the effects of the passage of cold fronts on satellite 
                         derived chlorophyill in the south Brazil bight",
            booktitle = "Anais...",
                 year = "2019",
               editor = "Gherardi, Douglas Francisco Marcolino and Sanches, Ieda DelArco 
                         and Arag{\~a}o, Luiz Eduardo Oliveira e Cruz de",
                pages = "2750--2754",
         organization = "Simp{\'o}sio Brasileiro de Sensoriamento Remoto, 19. (SBSR)",
            publisher = "Instituto Nacional de Pesquisas Espaciais (INPE)",
              address = "S{\~a}o Jos{\'e} dos Campos",
             keywords = "Chlorophyll-a concentration, cold fronts, South Brazil Bight, 
                         MODIS.",
             abstract = "The South Brazil Bight (SBB) is oceanographically characterized by 
                         a strong vertical stratification during the austral summer and a 
                         more mixed water column during winter. Atmospheric mesoscale 
                         dynamics and circulation are highly dominated by the passage of 
                         cold fronts. Cold front passages cause wind intensification and a 
                         shift in its main quadrant direction, impacting on the dynamics of 
                         the water column and ocean circulation. However, the effects on 
                         biological processes are still poorly understood. In the present 
                         study, daily MODIS-Aqua chlorophyll-a concentration (chl) 
                         estimates were analyzed before and after the passage of cold 
                         fronts in the SBB region, between 01/2004-12/2008. The frontal 
                         systems were more frequent during spring, winter and fall, with 
                         157 cold fronts identified in Cabo Frio and 192 in Santos, with 
                         mean frequencies of 2-4 events per month. The Wilcoxon-signed rank 
                         test showed that the increase in chl after the cold front passages 
                         were significant (p-value < 0.05) within 3 days in Cabo Frio and 8 
                         days in Santos. Cloud cover was a limitation for obtaining daily 
                         MODIS data. Future work should test the use of different orbital 
                         sensors, complemented by in situ biophysical data and numerical 
                         simulations for better understanding the role of cold front 
                         passages on water column and phytoplankton dynamics.",
  conference-location = "Santos",
      conference-year = "14-17 abril 2019",
                 isbn = "978-85-17-00097-3",
             language = "pt",
         organisation = "Instituto Nacional de Pesquisas Espaciais (INPE)",
                  ibi = "8JMKD3MGP6W34M/3U6LC52",
                  url = "http://urlib.net/ibi/8JMKD3MGP6W34M/3U6LC52",
           targetfile = "97787.pdf",
                 type = "Oceanografia",
        urlaccessdate = "27 abr. 2024"
}