@InProceedings{AlvesReiFraVedPav:2015:GrPrPr,
               author = "Alves, Di{\'o}genes Salas and Reis, Mariane Souza and 
                         Fran{\c{c}}a, David Guimar{\~a}es Monteiro and Vedovato, Laura 
                         Barbosa and Pavanelli, Jo{\~a}o Arthur Pompeu",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)}",
                title = "Gross Primary Production Variability in the Amazon River Basin 
                         based on 2009-2011 MOD17A2 MODIS data",
            booktitle = "Anais...",
                 year = "2015",
               editor = "Gherardi, Douglas Francisco Marcolino and Arag{\~a}o, Luiz 
                         Eduardo Oliveira e Cruz de",
                pages = "3261--3268",
         organization = "Simp{\'o}sio Brasileiro de Sensoriamento Remoto, 17. (SBSR)",
            publisher = "Instituto Nacional de Pesquisas Espaciais (INPE)",
              address = "S{\~a}o Jos{\'e} dos Campos",
             abstract = "This paper presents a preliminary analysis of Gross Primary 
                         Production (GPP) for the Amazon River basin based on the MODIS 
                         MOD17A2 product for a 24-month period including an El Niņo-La Niņa 
                         transition. Monthly 0.05-degree resolution MOD17A2 data from June 
                         2009 thru May 2011 were used to produce GPP estimates for the 
                         globe, for the Amazonian basin, and, within the basin, for 
                         Brazilian Amazon forests. Annual GPP was estimated to be 111.8x109 
                         MgCyear-1 for global terrestrial ecosystems, 14.8x109 MgCyear-1 
                         (13.2% of the global GPP) for the Amazon River basin, and 7.6x109 
                         MgCyear-1 (6.7% of the global value) for the basins forests in 
                         Brazil. Average monthly GPP was estimated to be 1,23x109 
                         MgCmonth-1 for the basin, and 0.63x109 MgCmonth-1 for the basins 
                         forests in Brazil. Analysis of GPP spatial variability indicated 
                         that GPP declined with increasing elevation, with areas below 
                         1,250 m accounting for nearly 95% of the basins annualized GPP; 
                         also, forest variance at the monthly scale showed that GPP was 
                         more homogeneously distributed in forests than in the entire 
                         basin, where GPP variability would be affected by different 
                         factors like elevation, land cover, land use, and landscape 
                         patterns. Principal components analysis of the 24-month time 
                         series suggested a more important decline in forest GPP in the 
                         southern forests in comparison with the northern ones at the onset 
                         of the La Niņa in mid-2010. Though preliminary, these results may 
                         help investigate how MODIS data might improve our understanding of 
                         primary production variability due to large scale events like the 
                         Southern Oscillations.",
  conference-location = "Jo{\~a}o Pessoa",
      conference-year = "25-29 abr. 2015",
                 isbn = "978-85-17-0076-8",
                label = "643",
             language = "en",
         organisation = "Instituto Nacional de Pesquisas Espaciais (INPE)",
                  ibi = "8JMKD3MGP6W34M/3JM4BG7",
                  url = "http://urlib.net/ibi/8JMKD3MGP6W34M/3JM4BG7",
           targetfile = "p0643.pdf",
                 type = "Mudan{\c{c}}as clim{\'a}ticas",
        urlaccessdate = "27 abr. 2024"
}