@InProceedings{RomãoOliveiraFreiPire:2017:InLaCi,
               author = "Rom{\~a}o Oliveira, Marcelo and Freitas, Ana Carolina Vasques and 
                         Pires, Luciana Bassi Marinho",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Universidade Federal de Itajub{\'a} (UNIFEI)} and {World 
                         Environmental Conservancy}",
                title = "The influence of large-scale circulation on fire outbreaks in the 
                         Amazon region",
            booktitle = "Proceedings...",
                 year = "2017",
         organization = "AGU Fall Meeting",
             abstract = "The combination of alterations in land use cover and severe 
                         droughts may dramatically increase fire outbreaks. Tropical 
                         convection in the Amazon Basin is regulated mainly by large-scale 
                         atmospheric systems such as the Walker circulation. Many of the 
                         documented drought episodes in the Amazon occurred during intense 
                         El Niño events such as those recorded in 1926, 1983, 1997-1998, 
                         and 2010. However, not all El Niño events are related to drought 
                         in the Amazon. Recent studies have also pointed out the importance 
                         of the tropical Atlantic Ocean in the modulation of the Amazonian 
                         climate, as observed during the drought episodes in 2005 and 2010. 
                         This work investigates the fire outbreak tendency in the Amazon 
                         region, and the influence of large-scale circulation on these 
                         events. Data from the Fire Program of the Center for Weather 
                         Forecasting and Climate Studies (CPTEC/INPE) show a substantial 
                         increase in the number of fire outbreaks in the last few years, 
                         especially during 2016. However, in the 2017 year a sharp drop in 
                         fire outbreaks reaching levels similar to the years prior to 2016 
                         is being noted, already showing a reduction of 54% in relation to 
                         the preceding 2016 year. The 2015-2016 period was marked by one of 
                         the strongest El Niño in history. This was reflected in the 
                         increase of the number of fire outbreaks due to the increase of 
                         the drought and temperature elevation period. On the other hand, 
                         the 2017 year is being characterized by a condition of neutrality 
                         in relation to the El Niño-Southern Oscillation (ENSO) phenomena, 
                         and have overall presented positive sea surface temperature (SST) 
                         anomalies in the tropical Atlantic. Variations of these systems 
                         and their relation to fire outbreaks is demonstrated.",
  conference-location = "New Orleans",
      conference-year = "11-15 Dec.",
             language = "en",
           targetfile = "romao_influence.pdf",
        urlaccessdate = "27 abr. 2024"
}