@InProceedings{BassoGMCTCDCNAMGAA:2019:FiAmCH,
               author = "Basso, Luana Santamaria and Gatti, Luciana Vanni and Marani, 
                         Luciano and Cassol, Henrique Luis Godinho and Tejada, Graciela and 
                         Correia, Caio Silveste de Carvalho and Domingues, Lucas Gatti and 
                         Crispim, St{\'e}phane Palma and Neves, Raiane Aparecida Lopes and 
                         Arai, Egidio and Miller, John B. and Gloor, Manuel and Anderson, 
                         Liana O. and Arag{\~a}o, Luiz Eduardo Oliveira e Cruz de",
          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)} 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)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {National Oceanic and Atmospheric 
                         Administration (NOAA)} and {University of Leeds} and {Centro 
                         Nacional de Monitoramento e Alertas de Desastres Naturais 
                         (CEMADEN)} and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)}",
                title = "A first Amazon CH4 budget and its controls based on atmospheric 
                         data from vertical profiles measurements",
                 year = "2019",
         organization = "Congresso Mundial da IUFRO",
             abstract = "The role of tropical regions in the global CH4 balance remained 
                         uncertain, due these regions have until recently been poorly 
                         observed with large-scale integrating in-situ observations. To 
                         contribute in understanding the CH4 balance in tropical regions, 
                         we have started a lower-troposphere greenhouse gas-monitoring 
                         program over Brazilian Amazon Basin consisting of regular vertical 
                         profile greenhouse gas observations at four sites. Samples are 
                         collected regularly each 2 weeks, using light aircraft. We will 
                         present an analysis of these data and what they tell us about the 
                         Amazon CH4 cycle and its contribution to global CH4 concentration. 
                         We estimate fluxes upwind of the sites from the profile data using 
                         a column budgeting approach (Miller et al., 2007). Over the full 
                         period (2010-2017) the Amazon Basin was a source of CH4, but with 
                         regional variations. There are comparably high and highly variable 
                         emissions from the eastern part of the basin exhibiting strong 
                         variability, with particularly high CH4 fluxes in two different 
                         periods of the year (beginning of the wet season and in the dry 
                         season). In contrast to this, a clear seasonality was observed at 
                         the other three sites, with the largest emissions occurring at the 
                         beginning of the wet season (January to March). Emissions from 
                         biomass burning contribute with a small part of the total flux at 
                         each site. We will finally discuss what is the influence from 
                         precipitation and temperature in the Amazon CH4 emissions.",
  conference-location = "Curitiba, PR",
      conference-year = "29 set. - 05 out.",
             language = "en",
        urlaccessdate = "20 set. 2024"
}