@InProceedings{PiresRomãFrei:2017:QuQuAn,
               author = "Pires, Luciana Bassi Marinho and Rom{\~a}o Oliveira, Marcelo and 
                         Freitas, Ana Carolina Vasques",
          affiliation = "{World Environmental Conservancy} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Universidade Federal de 
                         Itajub{\'a} (UNIFEI)}",
                title = "Quantitative and qualitative analyzes of the explosive cyclones 
                         that reached the Antarctic coast in the first half of 2017",
            booktitle = "Proceedings...",
                 year = "2017",
         organization = "AGU Fall Meeting",
             abstract = "An explosive cyclone is a kind of extratropical cyclone which 
                         shows a drop in pressure of at least 24 hPa in 24 hours. These are 
                         usually intense and they have rapid displacement which hinders 
                         their predictability. It is likely that climate change is causing 
                         an increase in this type of event in the Antarctic coast and, if 
                         this increase is confirmed, the regime of winds and temperatures 
                         may be changing. If there are more incidences of explosive 
                         cyclones, probably the Antarctic winds are becoming more intense 
                         and the temperatures in some places are becoming lower and in 
                         others are becoming higher. In the northern portion of the 
                         Antarctic Peninsula a decrease in temperature already has been 
                         recorded over the last 15 years, while a higher incidence of 
                         explosive cyclones over the region also has been found during this 
                         period. Studies also have suggested that the drop in temperatures 
                         in the Antarctic may be associated with the changes in wind 
                         direction, but the cause of these wind direction changes is 
                         unknown. Explosive cyclones, which change the wind patterns when 
                         they reach certain areas therefore may be contributing to this 
                         change in the Antarctic climate. This study is part of the 
                         Explosive Cyclones on the Antarctic Coast (EXCANC) Project 
                         conducted by the World Environmental Conservancy organization. 
                         This project analyzes data from meteorological stations 
                         strategically scattered throughout the coast and operated by 
                         various international Antarctic programs, and also utilizes 
                         satellite images. Results show that during the first half of 2017 
                         the highest number of events were recorded at the Australian Casey 
                         station with 10 cases, followed by the French station of Dumont 
                         D'Urville with 7 cases. Halley's English station recorded its 
                         first explosive cyclone this year. Intensity analyzes also are 
                         shown.",
  conference-location = "New Orleans",
      conference-year = "11-15 Dec.",
             language = "en",
           targetfile = "pires_quantitative.pdf",
        urlaccessdate = "05 maio 2024"
}